Carl F. Jordan

Odum School of Ecology
University of Georgia
Athens, Georgia 30602 U.S.A.

Professional Positions    Degrees    Books    Journal Articles    Book Chapters    Symposium Proceedings    Grants    Graduate Students & Prof. Associates    Courses Taught at UGA     Organizational Memberships     Awards & Recognitions    Major Activities since 1974    Other Activities    International

Professional Positions

2010-Present: Professor Emeritus, Odum School of Ecology, University of Georgia, Athens, GA

(1979-2010) Senior Ecologist, Institute of Ecology, University of Georgia, Athens, GA

(1991 - 2004)  Adjunct Professor of Botany, Dept. of Botany, University of Georgia, Athens, GA 30602

(1974-1979):  Visiting Scientist, Dept. de Ecologia, Instituto Venezolano de Investigaciones Cientificas, Caracas Venezuela, and Research Assoc., Univ. of Georgia.

 (1969-1974):  Associate Ecologist, Radiation and Environmental Research Division, Argonne National Laboratory, Argonne, Illinois.

(1966-1969):  Assistant Ecologist, Puerto Rico Nuclear  Center, Rio Piedras, Puerto Rico.


(1966) Ph.D. in Botany, (specializing in Plant Ecology), Rutgers University

(1964) M.S. in Botany, (specializing in Plant Ecology),  Rutgers University

(1958) B.S. in Conservation of Natural Resources, University of Michigan

Professional Publications


Jordan, C.F. (Editor) 1981.  Benchmark Papers in Tropical Ecology. Hutchinson and Ross, Inc. Stroudsburg, Pa.

Jordan, C.F. 1985.  Nutrient Cycling in Tropical Forest Ecosystems.  Wiley, Chichester.

Jordan, C.F. (Editor and author) 1987.  Amazon Rain Forests: Ecosystem Disturbance and Recovery.  Springer Verlag. N.Y.

Jordan, C.F.  1989.  An Amazonian Rain Forest.  The Structure of Function of a Stressed Ecosystem and the Impace of Slash and Burn Agriculture.  Man the the Biosphere Series, Volume 2.  UNESCO, Paris and Parthenon, Carnforth,  England.

Jordan, C.F., J. Gajaseni, and H. Watanabe (eds)   1992. Taungya:  Forest Plantations with Agriculture in S.E. Asia.  C.A.B. International, U.K.

Jordan, C.F. 1995  Conservation: Replacing Quantity with Quality as a Goal for Global Management. (Textbook). Wiley, N.Y.

Jordan, C.F. 1998.  Working with Nature:  Resource Management for Sustainability.  Harwood Academic Publishers. Overseas Publishers Association.   Amsterdam.

Castellanet, C. and C.F. Jordan. 2002.  Participatory Action Research in Natural Resource Management.  Taylor and Francis. UK.

Montagnini F. and C.F. Jordan. 2005 Tropical Forest Ecology: The Basis for   Management  and Conservation.  Springer Verlag , Berlin.

Jordan, C.F. 2013.  An Ecosystem Approach to Sustainable Agriculture:  Energy Use Efficiency in the American South. Springer Verlag. Heidelberg.

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Jordan, C.F. 1965.  Fire influence in old fields of the New Jersey Piedmont.  The Bulletin, New Jersey Academy of Science 10: 7-12.

Jordan, C.F. 1966.  Fire-produced discontinuous rings in oak.  Bulletin of the Torrey Botanical Club 93: 114-117.

Jordan, C.F. 1968.  A simple, tension-free lysimeter.  Soil Science 105: 81-87.

Kline, J.R. and C.F. Jordan. 1968.  Tritium movement in soil of a tropical rain forest.  Science 160: 550-551.

Jordan, C.F. 1969.  Derivation of leaf area index from quality of light on the forest floor.  Ecology 50: 663-666.

Jordan, C.F., J.J. Koranda, J.R. Kline, and J.R. Martin. 1970. Tritium movement in a tropical ecosystem.  BioScience 20: 807-812.

Kline, J.R., J.R. Martin, C.F. Jordan, and J.J. Koranda. 1970. Measurement of transpiration in tropical trees with tritiated water.  Ecology 51: 1068-1073.

Jordan, C.F. 1971.  Productivity of a tropical forest and its relation to a world pattern of energy storage.  Journal of Ecology 59: 127-142.

Jordan, C.F. 1971.  A world pattern in plant energetics.   American Scientist 59: 425-433.

Jordan, C.F. and J.R. Kline. 1972.  Mineral cycling: some basic concepts and their application in a tropical rain forest.  Annual Review of Ecology and Systematics 3: 33-50.

Jordan, C.F., J.R. Kline, and D.S. Sasscer. 1972.  Relative stability of mineral cycles in forest ecosystems.  The American Naturalist 106: 237-253.

Stewart, M.L., J.R. kline, and C.F. Jordan. 1972.  A tritiated water recovery system.  International Journal of Applied Radiation and Isotopes 23: 387-388.

Jordan, C.F., J.R. Kline, and D.S. Sasscer. 1973.  A simple model of strontium and manganese dynamics in a tropical rain forest.  Health Physics 24: 477-489.

Jordan, C.F. 1974.  Respiration of red pine along a gradient of gamma radiation.  Radiation Botany 14: 337-341.

Jordan, C.F., M.L. Stewart, and J.R. Kline. 1974.  Tritium movement in soils: the importance of exchange and high initial dispersion.  Health Physics 27: 37-43.

Jordan, C.F. 1975.  What is ecology?  Bulletin Ecological  Society of America 56(2): 2-3.

Jordan, C.F. and J.R. Kline. 1976.  Strontium-90 in a tropical  rain forest:  12th year validation of a 32-year prediction.  Health Physics 30: 199-201.

Jordan, C.F. 1977.  Distribution of elements in a tropical montane rain forest.  Tropical Ecology 18: 124-130.

Jordan, C.F. and J.R. Kline. 1977.  Transpiration of trees in a  tropical rain forest.  Journal of Applied Ecology 14: 853-860.

Jordan, C.F. and E. Medina. 1977.  Ecosystem research in the tropics.  Annals Missouri Botanical Garden 64(4) 737-745.

Medina, E. R. Herrera, C.F. Jordan, and H. Klinge. 1977.  El Proyecto Amazonas del Instituto Venezolano de Investigaciones Cientificas.  Nature and Resources (UNESCO) 13(3) 4-7.

Jordan, C.F. 1978.  Stem flow and nutrient transfer in a tropical rain forest. Oikos 31: 257-263.

Jordan, C.F. 1978.  Documentation of identifications in  ecological work: a reply. Tropical Ecology 19(2):245-247.

Jordan, C.F. and P.G. Murphy.  1978. A latitudinal gradient of wood and litter production and its implications regarding competition and species diversity in trees.  American Midland Naturalist 99:415-434.

Jordan, C.F. and N.Stark. 1978.  Retencion de nutrientes en la estera de raices de un bosque pluvial Amazonica.  Acta Cientifica Venezolano 29:263-267.

Jordan, C.F. and C. Uhl. 1978.  Biomass of a "tierra firme" forest of the Amazon Basin calculated by a refined allometric relationship.  Oecologia Plantarum 13: 387-400.

Herrera, R., C. Jordan, H. Klinge, and E. Medina. 1978.  Amazon ecosystems: their structure and functioning with particular emphasis on nutrients.  Interciencia 3:223-232.

Herrera, R. T. Merida, N. Stark, and C.F. Jordan. 1978.  Direct phosphorus transfer from leaf litter to roots through mycorhizzal connections in an Amazonian rain forest.  Naturwessenschaften 65:208-209.

Koziol, KM. and C.F. Jordan. 1978.  Changes in carbohydrate levels in red kidney bean (Phaseolus vulgaris L.) exposed to sulphur dioxide.  Journal of Experimental Botany 29: 1037-1043.

Stark, N. and C.F. Jordan. 1978. Nutrient retention by the root mat of an Amazonian rain forest.  Ecology 59: 434-437.

Jordan, C.F., R.L. Todd, and G. Escalante. 1979.  Nitrogen conservation in a tropical rain forest.  Oecologia 39: 123-128.

Golley, F.B., J. Yantko, and C. Jordan. 1980.  Biogeochemistry of tropical forests: 2.  The frequency distribution and mean concentraion of selected elements near San Carlos de Rio Negro, Venezuela.  Tropical Ecology 21: 71-80.

Jordan, C.F. 1980.  Los flujos y ciclos de nutrients, agua, y energia en ecosistemas.  Boletin de la Sociedad Venezolana de Ciencias Naturales 34: 80-102.

Jordan, C.F., and G. Escalante. 1980.  Root productivity in an  Amazonian rain forest.  Ecology 61: 14-18.

Jordan, C.F. and E.G. Farnworth. 1980.  A rain forest chronicle: perpetuation of a myth.  Biotropica 12: 233-234.

Jordan, C.F., F. Golley, Jerry Hall and Jan Hall. 1980. Nutrient scavenging of rainfall by the canopy of an Amazonian rain forest.  Biotropica 12: 61-66.

Medina, E., H. Klinge, C. Jordan, R. Herrera, and P. Minchin. 1980.  Soil respiration in Amazonian rain forests in the rio Negro Basin.  Flora 170: 240-250.

Farnworth, E. G., T. Tidrick, C. Jordan, and W. Smathers. 1981. The value of nautral ecosystems: an ecological and economic framework.  Environmental Conservation 8: 275-282.

Herrera, R., C.F. Jordan, E. Medina, and H. Klinge.  1981.  How human activities disturb the nutrient cycles of a tropical rainforest in Amazonia.  Ambio 10: 109-114.

Jordan, C.F. 1981.  Do ecosystems exist?  The American Naturalist 118: 284-287.

Jordan, C.F. and R. Herrera. 1981. Tropical rain forests: are nutrients really critical? The American Naturalist 117: 167-180.

Jordan, C.F. and J. Heuveldop. 1981.  The water budget of an Amazonian rain forest.  Acta Amazonica 11: 87-92.

Jordan, C.F. 1982.  Rich forest, poor soil. Garden 6: 11-16.

Jordan, C.F. 1982.  Amazon rain forests.  American Scientist 70: 394-401.

Jordan, C.F. 1982.  Nutrient cycling index of an Amazonian rain forest.  Acta Oecologia 3: 393-400.

Jordan, C.F. 1982.  The nutrient balance of an Amazonian rain forest.  Ecology 63: 647-654.

Jordan, C.F., W. Caskey, G. Escalante, R. Herrera, F. Montagnini, R. Todd, and C. Uhl. 1982.  The nitrogen cycle in a "tierra firme" rain forest on oxisol in the Amazon Territory of Venezuela.  Plant and Soil 67: 325-332.

Uhl, C., C. Jordan, R. Herrera, K Clark, and H. Clark. 1982. Impact of forest removal by cutting, burning, and bulldozing on nutrient loss and biomass accumulation in an amazon Caatinga forest.  Oikos 38: 313-320.

Farnworth, E.G, T. Tidrick, W. Smathers, and C.F. Jordan. 1983. The need for synthesis of ecological and economic theory for more complete valuation of tropical moist forests.  International Journal of Environmental Studies 21: 11-28.

Farnworth, E.G, T. Tidrick, W. Smathers, and C.F. Jordan. 1983. The need for synthesis of ecological and economic theory for more complete valuation of tropical moist forests.  International Journal of Environmental Studies 21: 11-28.

Haines, B. C. Jordan, J. Clark, and K. Clark. 1983.  Acid rain in an Amazon rain forest.  Tellus 35B: 77-80.

Jordan, C.F. 1983.  Review of Smith, N.J.H., Rainforest corridors: the TransAmazon colonization scheme, Univj. of California Press.  The Environmental Professional 5: 385-386.

Jordan, C. W. Caskey, G. Escalante, R. Herrera, F. Montagnini, R. Todd, and C. Uhl. 1983.  Nitrogen dynamics during conversion of primary rain forest to slash and burn agriculture.  Oikos 40: 131-139.

Jordan, C.F. and E.G. Farnworth. 1983.  Natural regeneration vs. plantation forests as land reclamation strategies for the humid tropics: a case study.  Environmental Management 6: 485-492.

Jordan, C.F. and C.E. Russell. 1983.  Jari: Productividad de las plantaciones y perdida de nutrientes debido al corte y la quema.  Interciencia 8: 294-297.

Montagnini, F., and C.F. Jordan. 1983.  The role of insects in productivity decline of cassava (Manihot esculenta Crantz) in Amazonian slash and burn agriculture.  Agricultural Ecosystems and environment 9: 293-301.

Salick, J. R. Herrera, and C.F. Jordan. 1983.  Termitaria: nutrient patchiness in nutrient-deficient rain forests.  Biotropica 15: 1-7.

Smathers, W, M., C.F. Jordan, E.G. Farnworth, and T.H. Tidrick. 1983.  An economic production-function approach to ecosystem management.  BioScience 33: 642-646.

Uhl, C. and C.F. Jordan. 1984.  Vegetation and nutrient dynamics during the first five years of succession following forest cutting and burning in the Rio Negro region of Amazonia.  Ecology 65: 1476-1490.

Jordan, C.F. 1985. Jari:  a development project for pulp in the Brazilian Amazon.  The Environmental Professional 7: 135-142.

Jordan, C.F. 1987.  Rainforest regeneration and management: Report on an International Conference.  Restoration and Management Notes 5: 30.

Jordan, C.F. 1987.  Tropical rain forests and the world atmosphere.  Book Review.  The Environmental Professional 9: 362.

Maass, M.M., C.F. Jordan, and J.K. Sarukhan.  1988.  Soil erosion and nutrient losses in seasonal tropical agroecosystems under various management techniques.  Journal of Applied Ecology 25: 595-607.

Jordan, C.F. 1989.  Last Stand of the Red Spruce.  Book Review. The Environmental Professional 11: 178.

Jordan, C.F. and C.E. Russell. 1989.  Jari: A Pulp Plantation in the Brazilian Amazon.  GeoJournal 19.4: 429-435.

Gajaseni, J. and C.F. Jordan.  1990.  Decline of Teak Yield in Northern Thailand:  Effects of Selective Logging on Forest Structure.  Biotropica 22: 114-118.

Lee, D., X.G. Han, and C.F. Jordan.  1990.  Soil phosphorus fractions, aluminum, and water retention as affected by microbial activity in an Ultisol.  Plant and Soil 121: 125-136.

Jordan, C.F. and G.Batmanian.  1990.  Ecology and economics of development in the Brazilian Amazon: The case of BR364, Acre, Brazil.  Intecol Newsletter 20 (3): 1-3.

Potter, R.L., C.F. Jordan, R.M. Guedes, G.J. Batmanian, and X.G. Han.  1991.  Assesment of a phosphorus fractionation method for soils: problems for further investigation.  Agriculture, Ecosystems, and Environment 34: 453-463.

Wojtkowski, P.A., C.F. Jordan, and F.W. Cubbage.  1991. Bioeconomic modeling in agroforestry:  a rubber-cacao example.  Agroforestry Systems 14: 163-177.

Jordan, C.F. 1991 Ecology and Land Management in Amazonia, by M.J. Eden.  Book Review for Progress in Physical Geography.

Jordan, C.F. 1991.  Alternatives to Deforestation: Steps Toward Sustainable Use of the Amazon Rain Forest.  Book Review.  The Environmental Professional 12: 291.

Jordan, C.F. 1991.  Race to Save the Tropics.  Book Review.  The Environmental Professional 12: 291-292.
Jordan, C.F. 1992. Agroforestry: Principles and Practice.  Book Review.  Forest Science 38(4).46

Jordan, C.F. 1991.  Alternatives to Deforestation: Steps Toward Sustainable Use of the Amazon Rain Forest.  Book Review.  The Environmental Professional 12: 291.

Jordan, C.F. 1991.  Race to Save the Tropics.  Book Review.  The Environmental Professional 12: 291-292.
Jordan, C.F. 1993.  Healthy Ecosystems: How do we define them? Book Review.  Conservation Biology 7: 444-445.

Matta-Machado, R.P. and C.F. Jordan 1995.  Biomass and nutrient dynamics during the first three years of an alley-cropping agroecosystem in southeast U.S.A.   Agroforestry Systems 30 (3) 351-362.

Jordan, C.F.  1999.  Tropical forest management:  Victim of economics.  (Book review) BioScience 49: 413-14.

Montagnini, F., Jordan, C.F., and Matta Machado, R.  1999.  Reciclaje y Eficiencia en el  Uso de Nutrientes en Sistemas Agroforestales. Yvyraretá (Argentina) 9: 21-40.

Moseley, W.G. and C.F. Jordan. 2001. Measuring agricultural sustainability: energy analysis of conventional till and no-till maize in the Georgia Piedmont.   The Southeastern Geographer 41: 105-116

Book review: Jordan, C.F. 2001.  The Sustainability-Biodiversity-Agriculture Conundrum.  Conservation Biology 15: 3-5.

Montagnini, F. and C.F. Jordan. 2002.  Reciclaje de nutrients.  Pp. 167-191 in M.R. Guariguata, G. Kattan  eds.  Ecologia y Conservacion de Bosques Lluviosos Neotropicales.  Ediciones LUR, Cartago, Costa Rica.

Jordan, C.F. 2002.  Genetic Engineering, The Farm Crisis, and World Hunger.  BioScience 52: 523-529.

Jordan, C.F.  2004.  Organic farming and agroforestry: Alleycropping for mulch production for organic farms of southeastern Unites States.  Agroforestry Systems 61: 79-90.

Kaewkrom P, J Gajaseni, CF Jordan, N Gajaseni. 2005.  Floristic regeneration in five types of teak plantations in Thailand.  Forest Ecology and Management 210: 351-361.

Faucette, L.B., L. M. Risse, C.F. Jordan, , M. Cabrera, D.C. Coleman, L.T. West.  2005.   Evaluation of storm water from compost and conventional erosion control practices in construction activities.  Journal of Soil and Water Conservation, 60:6, 288-297.

Faucette, L.B., C.F. Jordan, L. M. Risse, Miguel L. Cabrera, David C. Coleman, Larry T. West.  2006.   Vegetation and soil quality effects from hydroseed and compost blankets used for erosion control in construction activities Journal of Soil and Water Conservation 61 (6):355-362

Faucette, L.B.J.Governo, C.F. Jordan, B.G Lockaby, H.F. Carino, R. Governo. 2007.  Erosion Control and storm water quality from straw with PAM, mulch, and compost blankets of varying particle sizes. Journal of Soil and Water Conservation 62:404-413

Faucette, L.B.,Jason Governo, C.F. Jordan, B. Graeme Lockaby, Honorio F. Carino, Robin Governo.  2007.   Evaluation of erosion control methods for storm water quality.  Journal of Soil and Water Conservation, 62(6): 152A.

Carillo, Y., C.F. Jordan 2008. Modeling Green Manure Additions in Alley-Cropping Systems: Linking Soil Community Dynamics and Nitrogen Mineralization. Pp 267-284 in: S. Jose and A.M. Gordon eds. Toward Agroforestry Design: An Ecological Approach. Springer Verlag

Faucette, L.B., J. Governo, R. Tyler, G. Gigley, C.F. Jordan, B.G. Lockaby.  2009.   Performance of compost filter socks and conventional sediment control barriers used for perimeter control on constructions sites. J. Soil and Water Conservation 64:81-88.

Jacobsen, K.L., C.F, Jordan 2009. Effect of restorative agroecosystems on soil characteristics and plant production on a degraded soil in the Georgia Piedmont. Renewable Agriculture and Food Systems 24: 186-196.

Jacobsen, K.L.,C.L. Escalante, C.F, Jordan 2010. Economic analysis of experimental organic agricultural systems on a highly eroded soil of the Georgia Piedmont, U.S.A. Renewable Agriculture and Food Systems 25:296-308

CarilloY., Becky A. Ball, Mark A. Bradford, Carl F. Jordan; Marirosa Molina. 2010. Soil fauna alter the effect of litter composition on nitrogen cycling in the mineral soil. Submitted to Soil Biology and Biochemistry.

Carillo Y., C.F. Jordan, K.L. Jacobsen, K.G. Mitchell, P. Raber 2010. Shoot pruning of a perennial legume alters the availability and temporal dynamics of root-derived nitrogen soil. In revision. Plan and Soil.

Jordan, C.F. 2016. The farm as a thermodynamic system: Implications of the Maximum Power Principle. Biophysical Economics and Resource Quality 1: 9 DOI 10.1007/s41247-016-0010-z

Jordan, C.F. 2019. Energy flow and feedback control in ecological and
economic food systems. Ecological Economics 156: 91-97.


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Jordan, C.F. 1970.  Vegetative sprouting following irradiation of a tropical rain forest.  Pages D305-D308 in H.T. Odum and R.F. Pigeon eds.  A Tropical Rain Forest.  Div. of Technical Information, U.S. Atomic Energy Commission. Wash. D.C.

Jordan, C.F. 1970  Flow of soil water in the lower montane tropical rain forest.  Pages H199-H200 in H.T. Odum and R. F. Pigeon eds.  A Tropical Rain Forest.  Div. of Technical Information, U.S. Atomic Energy Commission, Wash. D.C.

Jordan, C. F. 1970.  Movement of 85Sr and 134Cs by the soil water of a tropical rain forest. Pages H201-H204 in H.T. Odum and R.F. Pigeon eds.  A Tropical Rain Forest.  Div. of Technical Information, U.S. Atomic Energy Commission, Wash. D.C.

Odum, H.T. and C.F. Jordan. 1970.  Metabolism and evapotranspiration of the lower forest ina a giant plastic cylinder.  Pages I165-I190 in  H.T. Odum and R.F. Pigeon eds.  A Tropical Rain Forest.  Div. of Technical Information, U.S. Atomic Energy Commission, Wash. D.C.

Odum, H.T., A. Lugo, G. Cintron, and C.F. Jordan. 1970. Metabolism and evapotranspiration of some rain forest plants and soil. Pages I103-I164 in H.T. Odum and R.F. Pigeon eds.  A Tropical Rain Forest.  Div. of Technical Information. U.S. Atomic Energy Commission, Wash. D.C.

Lugo, A., C.F. Jordan, et al. 1973.  Structure and function of tropical ecosystems.  Pages 67-111 in E.Farnworth and F. Golley, eds.  Fragile Ecosystems.  Evaluation of Research and Applications in the Neotropics. Springer-Verlag, New York.

Uhl, C., C.F. Jordan, and R. Herrera. 1982.  Amazon forest management for wood production: an assesment of limitations and potentials based of field studies at San Carlos de Rio Negro, Venezuela.  Pages 143-157 in G. Hallsworth, ed.  Socio-economic Effects and Constraints of Tropical Forest Managaement.  Wiley, Chichester.

Jordan, C.F. 1983.  Productivity of tropical rain forest ecosystems and the implications for their use as future wood and energy sources.  Pages 117-136 in F.B. Golley, ed.  Ecosystems of the World, vol 14A.  Tropical Rain Forest Ecosystems, Structure and Function.  Elsevier, Amsterdam.

Herrera, R., E. Medina, H. Klinge, C.F. Jordan, and C. Uhl. 1984.  Nutrient retention mechanisms in tropical forests:  The Amazon caatinga, San Carlos pilot project, Venezuela.  Pages 85-97 in F. DeCastri, F.W.G. Baker, and M. Hadley, eds.  Ecology in Practice, Part I.  Ecosystem management,  Tycooly International Publishing, Dublin.

Jordan, C.F. 1984.  Nutrient regime in the wet tropics: physical factors.  Pages 3-12 in E. Medina, H. Mooney, and C. Vazquez-Yanes eds.  Physiological Ecology of Plants of the Wet Tropics.  Junk.  The Hague.

Jordan, C.F.  1985 Soils of the Amazon rainforest.  Pages 83-94 in  G.T. Prance and T.E. Lovejoy eds. Amazonia.  Key Environments Series. Pergamon Press. Oxford.

Jordan, C.F. 1986  Ecological effects of forest clearcutting. pp 345-357  in Committee on application of Ecological Theory to Environmental Problems, eds. Ecological knowledge and environmental problem solving.  National Academy Press,  Washington, D.C. 

Jordan, C.F. 1986  Ecological effects of nuclear radiation.  pp. 331-344 in Committee on application of Ecological Theory to Environmental Problems, eds. Ecological knowledge and environmental problem solving.  National Academy Press,  Washington, D.C. 

Jordan, C.F. 1988. The Tropical Rain forest Landscape. pp.45-165 in  H. Viles ed. Biogeomorphology.  Blackwell. Oxford.

Jordan, C.F. 1991.  Nutrient cycling processes and tropical forest management.  pp 159-180 in Rain Forest Regeneration and Management.  eds  A. Gomez-Pompa, T.C. Whitmore, and M. Hadley.  UNESCO (Paris).  Parthenon Publishing Group.  Carnforth, England.

Potter, R.L., C.F. Jordan, R.M. Guedes, G.J. Batmanian, and X. Han. 1991. Assessment of a phosphorus fractionation method for soils:  problems for further investigation.  pp 453-464 in D.A. Crossley ed.  Modern Techniques in Soil Ecology.  Elsevier, Amsterdam.

Jordan, C.F.  1993. Leak-Proof Nutrient-cycling Systems.  pg. 78-79 in Encyclopedia of the Earth: Jungles and Rainforests.  Weldon Owen Publishing.  Australia.

Jordan, C.F.  1993. Ecology of Tropical Forests. pp 165-197 in Tropical Forestry Handbook.  L. Pancel ed.  Springer Verlag.  Berlin.

Jordan, C.F.  1994.  pp 735-739  in The Tropical Rain Forest.  In R.Eblen and W. Eblen eds.  The Marshall Cavendish Encyclopedia of the Environment.  .  Houghton Mifflin Co.  Boston.

Jordan, C.F. 1995 Nutrient Cycling in Tropical Forests. pp 641-654  in Encyclopedia of Environmental Biology.  Academic Press.

Jordan, C.F. and C. Miller.  1995 Scientific Uncertainty as a Constraint to Environmental Problem-Solving: Large Scale Ecosystems.    pp 91-117 in J. Lemons ed.  Scientific Uncertainty and Environmental Problem Solving.  Blackwell Scientific Publishers.  Cambridge, Mass.

Montagnini, F., R. Matta-Machado, and C.F. Jordan.  Nutrient cycling in agroforestry systems.  in M. Ashton and F. Montagnini eds.  The Silvicultural Basis for Agroforestry Systems.  In Press.

Jordan, C.F. 1998.  Is God a Free-market Capitalist?  Freedom, Economics and Religion in the Development of the American Frontier.  Pp. 177-197 in J.E. Carroll and K. Warner eds.  Ecology and Religion: Scientists Speak.  Franciscan Press: Quincy Ill.

Jordan, C.F. 1998.   The Ratchet Effect:  The market economy forces agriculture to depend on high technology, to the detriment of sustainability.  Pp. 153-167 in, J. Lemons, L Westra, and R. Goodland eds.  Ecological Integrity and Sustainability: Case Studies.  Kluwer Academic Press, Dordrecht.

Montagnini, F., C.F. Jordan, and R.M. Machado. 2000.  Nutrient Cycling and  Nutrient Use Efficiency in Agroforestry Systems.  Pp 131-160 in M.S. 

Ashton and F. Montagnini eds.  The Silvicultural Basis for Agroforestry Systems.  CRC Press, Boca Raton.

Jordan, C.F. 2001.  The interface between economics and nutrient cycling in Amazon  Land development.  Pp 156-164 in M.E. McClain,  R.L. Victoria and J.E. Richey  eds.  The Biogeochemistry of the Amazon Basin.  Oxford Univ. Press, N.Y.
Jordan, C.F. 2001.   Tropical Ecology with the Institute of Ecology.  Pp 259-276 In G. Barrett and  T. Barrett eds.  The Institute of Ecology: Past, Present, Future.    Taylor and Francis.

Montagnini, F. and C.F. Jordan. 2002.  Reciclaje de nutrients.  Pp. 167-191 in M.R.  Guariguata, G. Kattan eds.  Ecologia y Conservacion de Bosques Lluviosos Neotropicales.  Ediciones LUR, Cartago, Costa Rica. 

Jordan, C.F. 2004.  Organic farming and agroforestry: Alleycropping for mulch production for organic farms of southeastern United States.  Pp 79-90 In Nair PKR, Rao  MR, Buck LE eds.  A Compendium for the 1st World Congress of  Agroecology, Kluwer, Dordrecht, The Netherlands.

Carrillo Y. and C.F. Jordan.  Linking soil community dynamics and nitrogen mineralization in an alley cropping system in the Georgia Piedmont (USA).  In A. Gordon and S. Jose eds.  Biophysical Interactions in Agroforestry.  Kluwer Academic Press.  In Press.

Jordan, C.F. 2017. Energy analysis of coffee production systems: Implications for Environmental and Economic Sustainability. In Montagnini F. ed. Integrating landscapes: Agroforestry for biodiversity conservation and food sovereignty. Springer Verlag. N.Y.


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Jordan, C.F. 1969.  Recovery of a tropical rain forest after gamma irradiation.  Pages 88-98 in D.J. Nelson and F.C.Evans, eds.  Proceedings of the Second National Symposium on Radioecology.  U.S. Dept. of Commerce, Springfield, Va.

Martin, J., C.F. Jordan, J.J. Koranda, and J.R. Kline. 1970. Radioecological studies of tritium movement in a tropical rain forest.  Pages 422-438 in Proceedings of the Symposium on Engineering with Nuclear Explosives. Proceedings of the Symposium on Engineering with Nucler Explosives, Jan.14-16, 1970, Las Vegas, Nev. Conf. 700101 (TID 450).

Jordan, C.F., J.R. Kline and D.S. Sasscer. 1971.  Tritium movement in an old-field ecosystem determined experimentally.  Pages 199-203 in D.J. Nelson ed.  Proceedings of the Third National Symposium on Radioecology.  U.S. Atomic Energy Commission Conference 710501-P1. Washington, D.C.

Kline, J.R., C.F. Jordan, and R.C. Rose. 1971.  Transpiration measurement in pines using tritiated water as a tracer.  Pages 190-198 in D.J. Nelson ed.  Proceedings of the Third National Symposium on Radioecology.  U.S. Atomic Energy Commission Converence 710501-P1.  Washington, D.C.

Sasscer, D.S., C.F. Jordan, and J.R. Kline. 1971.  Mathematical model of tritiated and stable water movement in an old-field ecosystem.  Pages 915-923 in D.J. Nelson, ed.  Proceedings of the Third National Symposium on Radioecology.  U.S. Atomic Energy Conference 710501-P1. Washington, D.C.

Kline, J.R., M.L. Stewart, and C.F. Jordan. 1972.  Estimation of biomass and transpiration in coniferous forests using tritiated water.  Pages 159-166 in J.F. Franklin, ed.  Proceedings of a Symposium on Research on Coniferous Forest Ecosystems.  U.S.D.A. Pacific Northwest Forest and Range Experiment Station, Portland, Oregon.

Kline, J.R., M.L. Stewart,, C.F. Jordan, and P. Kovac.  1972. Use of tritiated water for determination of plant transpiration and biomass under field conditions.  Pages 419-437 in Isotopes and Radiation in Soil-Plant Relationships Including forestry.  Proceedings of the Symposium, International Atomic Energy Agency, Vienna.

Sasscer, D.S., C.F. Jordan, and J.R. Kline. 1973.  Dynamic model of water movement in soil under various climatological conditions.  Pages 485-495 in Tritium, Proceedings of the Symposium sponsored by the Environmental Protection Agency.  Messenger Graphics, Pheonix, Arizona.

Brunig, E.F., R. Herrera, J. Heuveldop, C. Jordan, HJ.Klinge, and E. Medina. 1977.  The international Amazon project coordinated by Centro de Ecologia, Instituto Venezolano de Investigaciones Cientificas:  Organization and recent advances.  Pages 104-126 in E.F. Brunig, ed.  Transactions of the Internation MAB-IUFRO Workshop of Tropical Rain Forest Ecosystems Research.  Special Report No. 1. Hamburg-Reinbeck, Germany.

Brunig, E.F., R. Herrera, J. Heuveldop, C. Jordan, H. Klinge, and E. Medina. 1978.  The international Amazon MAB rain forest ecosystem pilot project at San Carlos de rio jNegro: review of developments since the 1st international workshop.  Pages 47-66 in Proceedings Second International MAB-IUFRO Workshop on Tropical Rain Forest Ecosystems Research (Jakarta).  Special Report No. 2.  Chair of World Forestry, Hamburg-Reinbek, Germany.

Jordan, C.F. 1979.  The environmental consequences of intensive forestry and the removal of whole trees from forests: the situation in Latin America.  Pages 141-148 in S.G. Boyce ed.  Biological and Sociological Basis for a Rational Use of Forest resources for Energy and Organics.  U.S.D.A., S.E. Forest Experiment Station, Ashville, N.C.

Jordan, C.F. 1980.  Nutrient leaching from agro-ecosystems in the amazon Basin and implications for recovery of the forest.  Pages 553-559 in J.I. Furtado, ed.  Tropical Ecology and Development, Proceedings of the Fifth International Symposium of Tropical Ecology, Kuala, Lumpur.

Herrera, R. and C.F. Jordan. 1981.  Nitrogen cycle in a tropical Amazonian rain forest: the caatinga of low mineral nutrient status.  Pages 493-505 in F.E.Clark and T. Rosswall, eds.  Terrestrial Nitrogen Cycles. Processes, Ecosystem Strategies, and Management Impacts.  Ecological Bulletins (Stockholm).

Tidrick, T.H., E.G. Farnworth, C.F. Jordan, and W.M. Smathers. 1981.  An approach to holistic modeling for moist forest valuation.  Pages 81-89 in Vol. 1, Society for General Systems Reserach, Proceedings of the Tenth Annual Conference of the Southeastern Region. Systems Science Institute, Lousiville, Ky.

Uhl, C., C.F. Jordan, and F. Montagnini. 1983.  Traditional and innovative  approaches to agriculture on Amazon Basin tierra firme sites.  Pages 73-95 in R.R. Lowrance, R.L. Todd, L.E. Asmussen, and R.A. Leonard, eds.  Nutrient Cycling in Agricultural Ecosystems.  Proceedings of a Symposium. Univ. of Georgia, College of Agriculture Special Publication No. 23.

Luvall, J.C., G. Parker, and C. Jordan. 1985.  Tropical deforestation and evapotranspiration.  pp 7-10 in F. Quinones and A.V. Sanchez (eds).  Proceedings of the International Symposium on Tropical Hydrology and 2nd Caribbean Islands Water Resources Congress.  American Water Resources Association, Bethesda, Maryland.

Parker, G.G., J.C. Luvall, and C.F. Jordan. 1985.  Hydrologic budgets for undisturbed and regenerating tropical rainforests on hillslopes in northeastern Costa Rica.  pp 11-15 in F. quinones and A.V. Sanchez, (eds).   Proceedings of the International Symposium on Tropical Hydrology and 2nd Caribbean Islands Water Resources Congress.  American Water Resources Assiciation, Bethesda, Maryland.

Jordan, C.F. 1985.  Ciclagem de nutrientes e silvicultura de plantacoes na bacia Amazonica.  pp 187-202 in  P.C. Rosand ed.  Reciclagem de nutrientes e agricultura de baixos insumos nos tropicos.  XVI Reuniao Brasileira de Fertilidade do Solo.  Centro de Pesquisas do Cacau, Ilheus, Brazil.

Jordan, C.F. 1986.  Local effects of tropical deforestation.  pp 410-426 in M.E. Soule, ed.  Conservation Biology.  The Science of Scarcity and Diversity.  Sinauer, Sunderland, Mass.

Jordan, C.F. 1986. Stability of tropial forest ecosystems. pp 110-120 in Proceedings of the 18th IUFRO World Congress, Vol 1.  IUFRO Secratatiat, Schonbrunn-Tirolgarten, Vienna, Austria.

Jordan, C.F. 1987.  Decomposing organic matter and nutrient  availability in highly weathered tropical soils. p. 14 in M.J. Hayes and J.H. Cooley eds.  Tropical soil biology: current status of concepts.  Proceedings of an International Workshop sponsored by the U.S. National Science Foundation. INTECOL Bulletin,14: 51.

Jordan, C.F. 1987.  Organic matter and phosphorus availability in tropical rain forests: implications for management.  Pages 11-15 in D. Athie, T.E. Lovejoy, and P.Oyens eds.  Workshop on biogeochemistry of tropical rain forests: problems for research. Universidade de Sao Paulo, , Centro de Energia Nuclear na Agricultura, World Wildlife Fund-US.

Jordan, C.F. In Press.  Nutrient cycling processes and tropical forest management. in  A. Gomez Pompa ed.  Proceedings of an International Workshop on rainforest regeneration and management. UNESCO-MAB, IUBS-Decade of the Tropics, UNEP. Caracas, Venezuela, Nov. 1986.

Jordan, C.F. and E.G. Farnworth.  1987. Comparison of wood productivity between tropical second-growth forests and plantation forests.  Pp. 50-51  In   A.E. Lugo ed. People and the Tropical Forest. A Publication of the U.S. Man and the Biosphere Program.  U.S. Dept. of State.  Washington, D.C.

Jordan, C.F., E.G. Farnworth, T.H. Tidrick, and W.M. Smathers 1987. Development of economic theory and methodology for evaluating non-market values of tropical forests.  Pp 18-20  In  A.E. Lugo ed. People and the Tropical Forest. A Publication of the U.S. Man and the Biosphere Program.  U.S. Dept. of State.  Washington, D.C.

Jordan, C.F., G.G. Parker, and J.C. Luvall.  1987  Shelterbelt system to minimize nutrient losses in sustained-yield tropical forestry.  Pp 52-53 In  A.E. Lugo ed. People and the Tropical Forest. A Publication of the U.S. Man and the Biosphere Program.  U.S. Dept. of State.  Washington, D.C.

Jordan, C.F. 1988.  Emergence of a New Paradigm.  Review of the Symposium "Mineral Nutrients in Tropical Forest and Savanna Ecosystems", Stirling Scotland, Sept. 9-11, 1987.  Tropical Ecology 29: 146-147.

Jordan, C.F. 1989. Are Process Rates Higher in Tropical Forest Ecosystems?  pp 205-215 In J. Proctor ed. Mineral Nutrients in Tropical Forest and Savanna Ecosystems.  Special publication of the British Ecological Society, No. 9. Blackwell, Oxford.

Jordan, C.F. and J. Gajaseni. 1990.  Interplanting of Tamarindus indica L. in Teak Plantations. pp 76-82 in  D. Werner and P. Muller eds.  Fast Growing Trees and Nitrogen Fixing Trees: Proceedings of an International Conference, Marburg, Germany, Oct. 8-12, 1989.  Gustav Fischer Verlag, Stuttgart.

Gajaseni, J. and C.F. Jordan. 1990.  Diversified Agroforestry Systems.  pp 157-161 in  Agroforestry Systems and Technologies.  BIOTROP Spec. Publ. No. 39.  South-East Asian Regional Centre for Tropical Biology.  Bogor, Indonesia.

Duxbury, J.M., C. Jordan, et al. 1989.  Soil organic matter as a source and a sink of plant nutrients.  pp 33-67 in D.C. Coleman, J.M. Oades, and G. Uehara eds.  Dynamics of Soil Organic Matter in Tropical Ecosystems.  Proceedings of a Symposium, Oct. 1988, Maui, Hawaii.  Published by NIFTAL Project, Dept. of Agronomy, Univ. of Hawaii Press.

Gajaseni, J., R. Matta Machado, and C.F. Jordan.  Diversified Agroforestry Systems: Reservoirs for Biodiversity and Landbridges for Habitat Fragmentation in the Tropics.  in Proceedings of the International Symposium on Biodiversity in Managed Landscapes: Theory and Practice.  Sacramento, Ca., 13-17 July, 1992. In Press.

Jordan, C.F. , N. Gajaseni, and J. Gajaseni.  1995.  Development and Structure of Bijomass and Wood Production in Plantations in Relation to Nutrient Cycling.  in E.K.S. Nambiar and A. Brown eds.

Jordan, C.F. 1995. Management of Soil, Water and Nutrients in Tropical Forest Plantations.  Proceedings of a Symposium at the International Center For Forestry (CIFOR), Bogor, Indonesia, March 20-24, 1995.

Jordan, C.F. 1999.  Growth dynamics of Paulownia fortunei at the Georgia  State Botanical Garden.  Report submitted to the Botanical Garden.  Internal  report.

Jordan, 2001. “A no-till planter for small-scale organic farming”  The Second Assembly of the Scientific Congress on Organic Agricultural Research.  Nov. 4-5, 2001, Rock Hill, S.C.

Jordan 2001. “The problem of no-till planting following a winter cover crop, on small scale organic farms.”  Georgia Organics Conference Augusta GA, Feb. 9, 10, 2001.

Jordan, C.F. and C. Castellanet. 2002.  An evaluation of participatory action research in the Transamazonica region of Brazil.  Proceedings of the 17th International Farming Systems Association, held at Lake Buena Vista, Florida.  Published by the Institute of Food and Agricultural Sciences, Univ. of Florida, Project # 0206 (CD)

Jordan, C.F. 2002.  Organic farming with no-till cultivations and leguminous hedgerows for mulch.  Poster presented at SARE conference “On the road to sustainable agriculture, October 23-26, Raleigh-Durham, NC.

Faucette, B. and C.F. Jordan, 2002.  Compost use for erosion and sediment control in construction and development areas.  Poster presented at SARE conference “On the road to sustainable agriculture, October 23-26, Raleigh-Durham, NC.
 Jordan, C.F. 2004.  Alley cropping for mulch production: potential for organic farms of  southeastern USA.  Poster.  First World Congress of Agroforestry, 27 June-2 July, 2004. Orlando, Florida. 

Reichlen J. and C.F. Jordan 2004.  The effects of root pruning in an alleycropping system in the Georgia Piedmont.  Poster.  First World Congress of Agroforestry, 27 June-2 July, 2004.  Orlando, Florida.
Carrillo Y. and C.F. Jordan. 2004.  A soil food web model of N in a Georgia Alley Cropping  System. Poster.  First World Congress of Agroforestry, 27 June-2 July,  2004.  Orlando, Florida. 
Jordan, C.F. 2007.  Organic Agriculture at the University of Georgia.  Contribution at the Second National Conference on Facilitating Sustainable Agriculture Education, Cornell Univ., 11-14 July, 2007.

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Agency Principal Investigators Amount Period Subject
Nat. Sci. Found. Golley, Jordan 198,800 74-75 Nutrient Cycling, Amazon Basin
Nat. Sci. Found. Jordan 160,700 75-76 Nutrient Cycling, Amazon Basin
Nat. Sci. Found. Jordan 144,500 76-77 Nutrient Cycling, Amazon Basin
Nat. Sci. Found. Jordan 198,600 77-78 Nutrient Cycling, Amazon Basin
Nat. Sci. Found. Jordan 196,527 78-79 Nutrient Cycling, Amazon Basin
Nat. Sci. Found. Jordan 225,030 79-80 Nutrient Cycling, Amazon Basin
Nat. Sci. Found. Jordan, Uhl 949,726 80-83 Nutrient Cycling, Amazon Basin
Nat. Sci. Found. Jordan 19,867 83-84 Nutrient Cycling, Amazon Basin
Nat. Sci. Found. Jordan 64,998 83-84 Synthesis Volume
Man & Biosphere Jordan, Farnworth 49,024 79-80 Tropical Plantations
Man & Biosphere Jordan 45,378 80-81 Economic Theory
Man & Biosphere Jordan 78,655 81-83 Shelterbelt Forestry
Rockefeller** Jordan, Farnworth 8,590 80 Watershed Planning
Nat. Sci. Found.** Jordan, Stone 100,000 82-83 Planning Project
Nat. Sci. Found. Jordan 194,967 87-89 Soil Phosphorus
World Wildlife Fund Jordan 10,000 87-89 Rainforest Regeneration
US Agency Inter. Dev. Jordan 149,932 88-90 Agroforestry
World Wildlife Fund Jordan 10,000 89-90 Rainforest Regeneration
Nat. Sci. Found. 7 P.I. s Inst. Ecol. 267,014 89-90 Equipment
World Wildlife Fund Jordan 15,000 90-91 Fire in Brazilian Forests
World Wildlife Fund Jordan 2,000 90 Fire in Brazil (supplement)
U.S. A.I.D. Co-P.I. 10,000000 90-95 Sustainable Development
UGA Intl. Program Dev. Co-P.I. 4,000 98 Mgt. Tropical Rain Forests
The Land Inst. Jordan 12,000 00-02 Alley cropping
USDA*** Jordan 332,000 00-04 Sub-tropical agro Forestry
EPA Co-P.I. 49,876 01-03 Grant to GA Organics
USDA Jordan 65,000 03-06 Agroforestry
USDA (SARE) Jordan 8,756 05-07 Soil organic matter
USDA (SARE) Jordan 190,000 06-09 Organic Agriculture
USDA Co-P.I. 149,300 07-10 Certificate in Organic A.G.

*Prior to 1974, yearly grants were "in house," administered through the Atomic Energy Commission (now DOE).

**Grants administered by Duke University.

***Grant sub-administered through the Univ. of Florida, where the headquarters of the Center for Sub-tropical agroforestry is located.

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Graduate Students & Professional Associates (pp=present position)


Christopher Uhl. 1980-1983.  Productivity and succession in degraded Amazonian Ecosystems.  pp: Biology Dept. Penn. State Univ.

Dowon Lee. 1987-1989. Organic matter and soil phosphorus availability in tropical soils.  pp: Dept. Chairman, Dept. of Environmental Science, Hankuk Univ., S. Korea.

Carrillo, Dulia Yolima. 2007-present.  Stable isotope studies of nutrient translocation in Agroforestry systems.  pp. Post-doctoral Associate, School of Ecology, Univ. of Georgia


Charles Russell (Ph.D. 1983, co-advisor with R. North).  Nutrient Loss and Productivity Change following Conversion of Primary Forest to Plantation Species at the Jari Plantations, Para, Brazil. pp: Consulting forester, Pullman, Washington.

Jeffrey Luvall (Ph.D. 1984).  Tropical Rainforest Deforestation and Recovery:  The Effects on the Evapotranspiration Process. pp: Earth Science Lab., NASA, Marshall Space Flight Center, Alabama.

Robert Buschbacher (Ph.D. 1984).  Changes in Productivity and Nutrient Cycling following Conversion of Amazon Rainforest to Pasture. pp: Visiting professor, University of Florida, School of Forestry.

Geoffrey Parker (Ph.D. 1985).  The Effect of Disturbance on Water and Solute Budgets of Hillslope Tropical Rainforest in Northeastern Costa Rica. pp: Smithsonian Chesapeake Res. Lab.

Florencia Montagnini (M.S. 1978; Ph.D. 1985).  Nitrogen turnover and Leaching from Successional and Mature Ecosystems in the Southern Appalachians. pp: . Prof., School of Forestry, Yale Univ.

Jose-Manuel Maass (Ph.D. 1985).  Soil Erosion and Nutrient Losses in Seasonal Tropical Agroecosystems under Various Management Techniques. pp:  Prof., Inst. de Biologia, Univ. Auto. Nac. Mexico, D.F. Mexico.

Jiragorn Gajaseni (Ph.D. 1988)  Ecological Comparision of Traditional Agriculture and the Forest Village System (Agroforestry) in Northern Thailand. pp. Assoc. Prof., Biology Dept., Chulalongkorn Univ., Bangkok, Thailand.

Garo Batmanian (Ph.D. 1990)  Reforestation of Degraded Pastures in the Brazilian Amazon: Effect of Site Preparation on Phosphorus Availability in the Soil.  pp: World  Bank, Brasilia, Brazil .

Han Xingguo (Ph.D. 1989)  Effect of Organic Matter on Availability of Phosphorus for Uptake by Plants.  pp Director, Dept. of Botany, Chinese Academy of Science, Bejing, PRC.

Paul Wojtkowski (Ph.D. 1989, co-advisor with F. Cubbage)  Bioeconomic simulation of agroforestry systems:  an application to Southeast Bahia, Brasil.  Independent consultant.

Cornelius Burns (Ph.D. 1992)  Mapping and Analysis of Montane Rain Forest Communities Using LasdSat TM and Elevation Data with a Geographic Information System.  p.p. U.S. Environmental Protection Agency, Atlanta, GA.

Suzannne Kolb (Ph.D. 1993) (co-chair with Dr. Frank Golley).  Islands of Secondary Vegetation in Degraded Pastures of Brazil.  Their Role in Reestablishing Atlantic Coastal Forest.  Coordinator for Brazil studies program, Oberlin College, Ohio.

Rosa Guedes. (Ph.D. 1993)  Phosphorus solubilization by Pigeonpea (Cajanus cajan) in a Georgia Ultisol..  Professor, Federal Rural Univ. of Pernambuco, Recife, Brazil.

Robert Potter (Ph.D. 1993) Phosphorus Dynamics Following Selected Site Preparation Treatments and Organic Matter Amendments on a Southern Piedmont Site.  Post Doctoral Associate, University of Georgia

Rodrigo Matta-Machado. (Ph.D. 1993)   A Comparison of Nutrient Dynamics and Productivities between an Alley Cropping System and an Annual Legume-Based Cropping System in the Piedmont Region of Georgia, U.S.A. Professor, Federal University of Minas Gerais, Bello Horizonte, Brazil.

Rita Mesquita. (Ph.D. 1995)  The effect of different proportions of canopy opening on the carbon cycle of a central Amazonian Secondary Forest.  Research Scientist, Instituto Nacional Pesquisas Amazonicas, Manaus, Brazil.

Jay Becker.  M.S. 1995.  Survivorship and growth of Prestoea acuminata (Palmae) in varying light environments of lower wet montane forest.

Kristina Laidlaw.  M.S. 1996.  The implementation of a volunteer stream monitoring program in Costa Rica.

Christopher Miller. (Ph.D. 1997).  Population Dynamics of an Economically Important Palm Tree (Jessenia bataua) in the Ecuadorian Amazon..  Professor,  St. John’s College, Florida

Eduardo Asanza (Ph.D. 1999) Black water and white water lake systems of  the Ecuadorian Amazon and the role of the black caiman  (Melanosuchus niger). Director, Cuyabeno Foundation, Quito, Ecuador.

Christian Castallanet. (Ph.D. 1998).  The Use of Participatory Action-Research for Environmental Problem Solving.  Dept. Head, Group for Research and Exchange of Technology, Paris, France

Julie March.  Ph.D.   2001.  Brazilian Agrarian Reform: Potential, Problems, and the Quest for Sustainability.  Food Specialist, U.S. Agency for International Development.

Eleanor Green. M.S. 2002.  Nutrient addition and crop yield of an alley cropping system in the Piedmont of Georgia.  Instructor, Gainesville College, Watkinsville, GA.

 Faucette, B. 2004. Ph.D. Evaluation of environmental benefits and impacts of compost and industry standard erosion and sediment control mseasurews used in construction activities.  Research Scientist, Filtrex Corp. Atlanta.

 Reichlen, J.J. M.S. 2004.  The effects of root-pruning on productivity in an alley  cropping system in the Georgia Piedmont.  Landscape Planner, California.

Ediger, L, Ph.D. 2006.  (Presidential Scholar)  Economic integration and rural transformation: state-driven afforestation in Yunnan, China and the implications for landscapes and livelihoods.

Carrillo, Dulia Yolima. 2007. Ph.D.  Univ. of Georgia. Linking litter quality, the soil microbial   and faunal communities and soil processes.  Post Doctoral Associate, Odum School of Ecology, Univ. of Georgia.

Jacobsen, Krista. 2008 Ph.D. Univ. of Georgia. Turning Red Clay Brown:The Ecological Effects and Economic Viability of a Restorative Agroecosystem in the Georgia Piedmont.

Stoike Jeffrey. M.S. 2009. The Guayami and Reforestation in Western Panama.

Raven, Kathleen. M.S. 2012. Land Grant Institutions as Settings for Instructional Videos on Sustainable Agricultural Practices.

Ellis, Justin. Ph.D. 2013. Sustainable Farmer Innovations in Emerging Local Food Systems: Looking beyond Adoption to Adaptation and Development of Innovations.


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Courses Taught at the University of Georgia

Tropical Ecological and Cultural Systems (1993-2000) (originated course and taught with Ted Gragson of Anthropology

Agroforestry/Agroecology (1995-present) (originated course)

Conservation Seminar (2000-present)

Senior Seminar (1999-2002)

Organic Agriculture (2004-present) (originated course)

Membership in Professional & Environmental Organizations

American Association for the Advancement of Science
Ecological Society of America
Sigma Xi
Sierra Club
Audobon Society
Nature Conservancy
National Wildlife Federation
Inter. Soc. Tropical Foresters
Wilderness Society
Fundacion Neotropica
National Parks and Conservation

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Awards and Recognitions

(1973)  Mercer Award, of the Ecological Society of America for outstanding papers in the field of Ecology

(1978) Who's Who in America

(1980) Graduate Faculty, University of Georgia

(1983) Univ. of Georgia, for research and creative activity resulting in the award of over one million dollars in  research grants and contract funds.

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Major Professional Activities since joining UGA in 1974

2004-2007. Development of Spring Valley organic farm as a research, educational, and outreach center.

2000- 2004. Co- PI on a multi-million grant from USDA to establish a “Center for Sub-Tropical Agroforestry. Research sites include several stations in Florida, and the “Spring Valley Farm” (see below) in Georgia.

1993-present. In 1993, I purchased a 100 acre farm (Spring Valley Farm) near Athens for use as a facility for research and teaching in agroecology and organic agriculture. Over the years, the intensity of use by graduate and undergraduate students has increased. By 2006, over 2000 undergraduates visited the farm for field exercises (ECOL 1000, 2 semesters/yr, ECOL 3500 3 semesters/yr). Undergraduates from Gainesville State College and Gwinnet College also visit the farm every year. I have used the farm for graduate courses in agroecology (ECOL 8440), and every May since 2004, I have given a Maymester course in organic agriculture (ECOL 3700). In 2006, an intensive graduate course in landscape design was given at the farm. I currently teach part of the curriculum for the “Certificate in Organic Agriculture” Program (AESC 3126) at the farm. Two Ph.D. students and one M.S. student have received their degrees from research on the farm. Two other Ph.D. students are currently using the farm for their Ph.D. research. The farm also hosts University groups from the State Botanical Garden, International Education, Environmental Ethics, as well as outside groups interested in sustainable agriculture.

1995. Developed proposal for conservation and sustainable development of 1-million tract of virgin rainforest in western Amazonas, Brazil.

1993. Appointed to the faculty of the newly created School of Ecology at the University of Georgia. Initiated two new courses in the Conservation and Sustainable Development cirriculum. Prepared textbook for the courses.

1988-1993. Established experimental forestry plantations in the Southeast for determining silviculture of Paulownia sp, and imported seeds from China to broaden its genetic base.

1992. Co-Principal Investigator in the A.I.D. sponsored Collaborative Research Support Program in Sustainable Agriculture and Natural Resource Management ($10 million, 5-year grant, extendable to 20 years, for research and extension in Asia, Africa, and Latin America.

1990. Organized Symposium on Taungya agriculture (agroforestry) at the Fifth International Congress of Ecology, Yokohama, Japan, Aug., 1990.

1989. Expert witness for Commonwealth of Australia in the court case regarding disposition of Queensland rain forest.

1989. Witness for U.S. Senate subcommittee on Conservation and Forestry, Washington, D.C.

1989-1993. Board of Advisors, The Basic Foundation, Atlanta, Georgia.

1988-1990. Principal Investigator of A.I.D. sponsored agroforestry research project in Thailand.

1988-1991. Principal Investigator of World Wildlife sponsored project on reforestation of golden lion tamarin reserve, Brazil.

1987-1990. Cooperating Scientist with Univ. Georgia International Programs (Darl Snyder, Dir.) in developing assistance program for Burkina Faso.

1987-1989. Principal Investigator of N.S.F. sponsored ecological study in the Brazilian Amazon. Carried out in Cooperation with the Environmental Division of the Brazilian Mining Co., Companhia Vale do Rio Doce. Financed by World Bank, through United Nations Development Program.

1985-1987. Cooperating Scientist with Agronomy Dept., Univ. Georgia, Griffin, on project dealing with herbicides as a land preparation technique for Georgia landowners.

1979-1982. Principal Investigator for three U.S. Man and the Biosphere sponsored ecological projects in Costa Rica and Puerto Rico.

1979-1983. Member of the MAB-1 (Man and the Biosphere, Tropical Forests) Directorate, U.S. Dept. of State.

1974-1984. Principal Investigator for National Science Foundation sponsored Ecological Study in the Amazon Territory of Venezuela; Coordinated activities of visiting U.S. scientists, and cooperated with principal investigators from Venezuela and Germany in organizing and running this international project at San Carlos de Rio Negro, Venezuela.

Consultant to Instituto de Ecologia, Universidad Nacional Autonoma de Mexico, D.F., on establishment and operation of watershed project near Chamelas, Mexico.

Member of Committee on Applications of Ecological Theory to Environmental Problems, Commission on Life Sciences, National Research Council, Washington, D.C.

Supervised Doctoral dissertation research and post-doctoral studies in Venezuela, Brazil, Costa Rica, Puerto Rico, Mexico, Haiti, Thailand, Ecuador, and the U.S.

Board of Editors, Ecotropicos (Journal of the Venezuelan Ecological Society)

Advisor to the Venezuelan Ministry of the Environment and Natural Resources for the Establishment of the Amazon Center for Ecological Research "Alexander Humboldt"

Executive Committee, Institute of Ecology, Univ. of Georgia. 1989-1992.

Served on various boards, committees, and review panels, many dealing with environmental and ecological aspects of management of forests.

Presented papers at many symposia, workshops, and special lectures, frequently on the subject of conservation and ecology of tropical forests.

Led graduate seminars, and served on internal committees of the Institute of Ecology, University of Georgia.

Regularly reviewed papers and proposals for professional journals and granting agencies.

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Other Professional Activities since 1974


  • Presented a one-week course in ecology at the Dominican Republic Cultural Center, Santo Domingo.


  • Participated in workshop at INPA, Manaus Brazil (Brazilian National Laboratory for Amazon Research.
  • Presented invited paper, International Society of Tropical Ecology, Panama.
  • One week consultant to Instituto de Investigaciones Sobre Recursos Bioticos (INREB), Mexico.
  • Participant in the MAB-IUFRO workshop, World Institute of   Forestry, Reinbek, Germany.
  • Presented Plenary Paper to the Second Inter. Congress of Ecology, Jerusalem, Israel.


  • Presented various courses and seminars to gov. agencies  and universities in Venezuela.


  • Invited paper, 5th Inter. Symp. on Tropical Ecology,  Kuala Lumpur.
  • Advisory committee to National Research Council on research in the tropics.
  • Workshop participant on use of biomass for energy, U.S. Forest Service.
  • National Research Council committee to study ways to apply  ecological knowledge to current environmental problems.
  • Appointed to Governing Board, Organization for Tropical Studies.
  • Appointed to Man and the Biosphere Tropical Forestry Directorate.
  • Participant in Dept. of Energy Symposium on tropical forests in the global carbon balance.


  • Initiated a project on the Jari plantation, Brazil


  • Presented paper in International Symposium on Nitrogen Cycling, Cali Colombia.
  • Consultant to  National Univ. of Mexico on watershed study.
  • Consultant to the Organization for Tropical Studies for development of agro-forestry projects.


  • Consultant to Monsanto Corp. for tropical agriculture.


  • Invited paper in symposium on long term effects of herbicides on tropical forests, Ho-Chi Minh City, Viet Nam
  • Invited paper, International workshop on physiological ecology of tropical vegetation, Mexico City, Mexico.


  • Member of Committee on Ecological Theory, National Research Council, Washington, D.C.
  • Consultant to U.S. Dept. of Energy of future of ecological research in Puerto Rico.
  • Plenary lecture at the Brazilian Soil Science Society,Itabuna, Brazil
  • Review panel for NASA


  • Presentations.  Nutrient cycling in tropical ecosystems and its importance for forest management. UNESCO Workshop, Harvard Forest.
  • Shelterbelt system to minimize nutrient losses in sustained yield tropical forestry.  U.S. Man and the Biosphere Symposium, University of Florida.
  • Tropical forest disturbance and recovery.  Instituto Nacional de Pesquisas Amazonicas, Manaus, Brazil.
  • Organic matter and phosphorus availability in tropical rain forests: Implications for management.  International Atomic Energy Workshop, Piricicaba, Brazil.
  • Graduate Seminar  An evaluation of net energy analysis in ecology.  Graduate Ecology Seminar University of Georgia.
  • Workshop, Participated in N.S.F. sponsored workshop on Ecological Processes and Tropical Soil Fertility, Athens, Ga.


  • Presentations.  Across the Amazon by train: a view of the disappearing rain forest.  Institute of Ecology Seminar.
  • Across the Amazon by train: a view of the disappearing rain forest.  Meeting of the Georgia Conservancy.
  • Environmental aspects of Amazonian deforestation.  Zoology Dept., Clemson University.
  • Workshop.  Participated in N.S.F. workshop on Soil Process in global geochemical cycles, Sapelo Island, Georgia.
  • Amazonian deforestation: Environmental, economic, and social effects. Atlanta Audobon Society.
  • Organized Symposium, and presented lead-off paper, August, 1986. Ecological Process and Tropical Soil Fertility, IVth Internation Congress of Ecology, Syracuse, N.Y.
  • Stability of Tropical Forests.  Meeting of the International Union for Forest Resource Organizations, Ljubljana, Yugoslavia.
  • Visiting Professor.  One month guest lectureship at South-Central Forestry University, Hunan, China (PRC).
  • Management of Tropical Forest Ecosystems.  Faculty of Biology, Chulalongkorn Univ., Bangkok, Thailand.
  • Soil organic matter and phosphorus availability.  Soil Science Dept. Kasetsart Univ., Bangkok, Thailand.
  • Nutrient cycling and tropical forest management. UNESCO Man and the Biosphere Symposium, Ciudad Bolivar, Venezuela.
  • Consultant, United Nations Development Program.  Rehabilitation of degraded pastures in the eastern Amazon region of Brazil.


  • The Historical Roots of Our Environmental Crisis Revisited.  Environmental Ethics Seminar.  Philosophy Dept. and Institute of Ecology, Univ. of Georgia.
  • Amazon Basin Rainforests, and Their Sustainable Development.  Workshop organized by Coolidge Center for Environmental Leadership, Cambridge Mass.  
  • Forestry in China.  Inst. of Ecology luncheon meeting.
  • Restoring Degraded Lands.  Center for International Policy, Washington, D.C.  International Conference on Ecology in Vietnam.
  • Migration from Cities to the Amazon and its Impact on the Rain Forest  Environment.  Center for Latin American Studies.  Univ. of Georgia.
  •  Are processes rates higher in tropical forest ecosystems?  Invited lecture for the British Ecological Symposium on Mineral Nutrients in Tropical Forest and Savanna Ecosystems, Stirling Scotland.
  • Large-scale, capital intensive development in the Amazon rain forest, and its ecological, socail, and economic effects.  Invited lecture to the Centre for Human Ecology, University of Edinburgh, Scotland.
  • Silvicultural system for Chinese fir.  Invited lecture presented to Central South Forestry University, Hunan, China.


  • Nutrient cycling in Amazonian Ecosystems; May 18, 1988, Organic matter and soil phosphorus availability.  Federal Rural University of Pernambuco, Recife, Brazil.
  • Recovery of disturbed Amazonian Ecosystems.  46th International Congress of Americanists' Conference on Amazonia: Deforestation and Possible Effects.  Amsterdam, The Netherlands.
  • Tropical soil organic matter workshop.  Sponsored by N.S.F. Dept. of  Agronomy, Univ. Hawaii.
  • Project Reviewer 1988.  Made site visit and reviewed work of Institute of Tropical Forestry, Puerto Rico, for U.S. Forest Service.


  • Presented two days of lectures on "Application of Ecological Theory to Forest Management" to Forest Industry Organization  Professionals, Lampang, Thailand.
  • Symposium Speaker, Univ. of Georgia Environmental Law Conference,  "Rainforest Destruction and Environmental Law.".
  • Invited Speaker, Students for Environmental Awareness, Univ. of Georgia.  "Rainforest Destruction: what a U.S. citizen  can do."
  • Symposium Speaker, Georgia Academy of Science, Valdosta State,  "Tropical Rain Forests and Global Climate".
  • Invited Speaker, Instituto Biodynamico, Botucatu, Sao Paulo, Brazil.   "The Taungya System of Agriculture, Thailand."
  • Invited Lecuture, Dept. of Zoology, Univ. Campinas, Sao Paulo, Brazil.  "Soil Organic Matter and P Availability."
  • Invited Lecture, Inter. Conf. on Fast Growing Trees, Marburg, Germany, "Tamarindus indica".
  • Witness for the Australian Commonwealth Gov. in the Court Case Queensland vs. Australian Gov. regarding World Heritage Status of Queensland Rain Forest.  
  • Invited Lecture.  Principles of Agroforestry.  Dept. of Biology, Univ. of  Acre, Rio Branco, Acre, Brazil,


  • Project Review.  Watershed Project, Univ. Nacional Auto. Mexico.
  • Invited Lecture.  Taungya Agriculture.  Div. of Biology, Chulalongkorn University, Bangkok, Thailand. July 1990.
  • Invited Presentation.  Tropical Rain Forests: Basic Ecological Mechanisms.  Symposium on Future of Tropical Rain Forests, Fifth INTECOL Symposium, Yokohama, Japan.
  • Organized Symposium on Economic and Ecologic Aspects of Taungya Agriculture in Asia.  Fifth INTECOL Symposium, Yokohama, Japan. 
  • Symposium Presentation.  Organic Matter Input and Phosphorus Availabiity on Highly Weathered Soils of the Amazon Basin.  First International Sympsoium on Environmental Studies on Tropical Rain Forests.  Manaus, Brazil.
  • Workshop Contribution.  The Need for an Economic Impact Statement for Conversion of Forest to Pasture.  Instituto de Meio Ambiente do  Acre, Rio Branco, Acre.
  • Symposium Presentation.  Why Agroforestry Systems work better in Asia than in South America.  Tropical Forest Ecology, The Changing Human Niche and Deforestation.  A symposium held as part of the annual meeting of the American Anthropological Association, New Orleans, La. 
  • Alternatives to Deforestation in the Tropics.  The Garden Club of America, Athens Chapter.  
  • National Science Foundation Review Panel.  Conservation and Restoration Biology. 


  • Speaker, Georgia Alumni Society Seminar, "Our Environment, Our Future", Center for Continuing Education, University of Georgia. 
  • Symposium Presentation (with J. Gajaseni).  Ecological Rationale of Traditional Agriculture and Agroforestry in S.E. Asia.  Soil Conservation Society, U.S.D.A. Symposium, The History of Agriculture and Environment.   Washington, D.C.
  • Consultant for World Bank on "Planning and Management of Czech and Slovak Reserves" to be established through Global Environmental Facility.  
  • Assisted "Llot environment, Direction des expositions, Cite des Sciences et de l'Industrie, Paris France" in preparation of "diorama" of  the San Carlos tropical forest ecosystem.
  • Site visit to Phillipines for planning program for Collaborative Research Support for AID's Sustainable Agriculture and Natural Resource Management Program.


  • Participated in Workshop on "Defining Sustainable Forestry", sponsored by the Wilderness Society and the American Forestry  Association, Washington D.C 
  • Invited lecture, School of Forestry, Univ. Georgia.  Nutrient cycling in tropical forests.  
  • Univ. of Georgia's Women's club.  Agricultural Development in the Philippines.  
  • Lecture, Oconee Co. Middle School.  "Tropical Rain Forests".  
  • Physiological differences between Paulownia fortuneii and P. tomentosa,  and the implications for plantation production in the Southeast.  Conference on Production and Marketing of Royal Paulownia, sponsored by Virginia Polytechnic Institute Farmville, Virginia.
  • Seminar, Soil Discussion Group, Agronomy Dept.  The UGA Sustainable Agriculture Program: Objectives in the Philippines.
  • Symposium presentation.  Nutrient cycling in annual and perennial legume-based agroecosystems (with R. Matta Machado and C.L. Neely.)   Ecological Society of America Meeting, Honolulu, Hawaii.
  • Colloquium Speaker, Anthropology Dept., Univ. of Georgia.  Sustainable Development.  
  • Workshop Speaker.  American Paulownia Association Meeting, Gainesville, Georgia,  Mixed Species Plantations.
  • Workshop participant, to guide establishment of a Ph.D. program in Ecology and Development.   University Federal of Pará, Belém, Brazil.


  • Plenary speaker, "Las Practicas Forestales vista por un Ecologo.  Foro Internacional sobre Los Aprovechamientos Forestales en Selvas y su   Relacion con el Ambiente.  FAO North American Forestry  Commission,  Chetumal, Mexico.  
  • Rapid Rural Assesment of Univ. Georgia Sustainable Agriculture Program (SANREM CRSP) Field Site, Mindanao,
  • SANREM CRSP Workshop, Destin Beach, Florida.   
  • SANREM CRSP Workshop, Central Mindanao University, Mindanao, Philippines. 
  • Seminar Speaker, "The Farmer First Approach to Sustainable Development".  Instituto Nacional de Pesquisas Amazonicas, Manaus,  Brazil.  
  • Consultation on Reconciling Conflicts between International Trade Law and Environmental Protection.  Georgia Consortium  on Negotiation and Dispute Resolution, Atlanta, Ga.
  • Paulownia fortunei: A potential new opportunity for forestry in the Southeast.  Mississippi State University.  2nd annual conference of the  American Paulownia Association.  


  • Invited Speaker, Students for Environmental Awareness, Univ. of Georgia.  Amazon Rain Forests.  
  • Phosphorus solubilization by pigeonpea (Cajanus cajan L.) in a Georgia Ultisol.  VIth International Congress of Ecology, Manchester, England, 22 August, 1994 (Poster, with R. Guedes).
  • Freund Foundation Lecturer, International Center for Tropical Ecology, University of Missouri, St.Louis.  Nov. 2-3, 1994.  Lecture 1: Nutrient Cycling in a Tropical Rain Forest.  Lecture 2: Conservation of Tropical Ecosystems: Limiting Factors.
  • Invited Lecture: An Amazonian Rain Forest:  Nutrient dynamics during slash and burn agriculture and the implications for increasing sustainability of tropical agroecosystems.  Catholic Univ. of Ecuador, Quito. 
  • Invited Lecture: Economic Factors in Rain Forest Conservation.  Univ. of San Francisco, Quito Ecuador.  
  • Invited Lecture: Mixed Species Plantations.  Invited presentation at the Agroforestry Workshop, Athens, GA, sponsored by the Institute of Ecology, and College of Agriculture.
  • Invited Lecture: Alley Cropping.   Invited presentation at the Agroforestry Workshop, Athens, GA, sponsored by the Institute of Ecology, and College of Agriculture.
  • Invited Lecture: Economic Factors in Amazonian Development. 


  • Invited lecture, Institute of Biological Sciences, Federal Univ. of Minas Gerais, Belo Horizonte, Brazil. 
  • Invited Lecture: The Carauari Project.  Invited lecture, Institute of Biological Sciences, Federal Univ. of Minas Gerais, Belo Horizonte, Brazil.
  • Invited Lecture: Economic Factors in Amazonian Development. Invited lecture, Centro Agroambiental de Tocantins, Univ. Federal Para, Belem, Para, Brazil.  
  • Reviewed forestry research program for Forestry Division, CATIE, Turrialba, Costa Rica.


  • Invited lecture.   The evolution of the nutrient cycling concept  and its application for designing sustainable land-use systems.  Presented at an agroforestry seminar, CATIE, Turrialba, Costa Rica.
  • Invited participant in “The forum on “Environmental Benefits and Sustainable Agriculture through Biotechnology”, sponsored by the Center for Food and Nutrition Policy, Georgetown Public Policy Institute.
  • Invited lecture Cultivo em aleia:  Um sistema de produção sustentável:  presented to the Ecology section, Federal Rural University of Pernambuco, Recife, Pernambuco.


  • Panel member for UGA Forestry Symposium, Tate Center  (Students for Environmental Awareness)


  • Consulting Editor for Environmental Series, Chelsea Press.  .  This is a series of books aimed for the high school level, and designed to increase student’s awareness of environmental problems and solutions.
  • Initiated an agroecology laboratory at the Institute of Ecology.  Developed four grants for education, research, and extension at a farm in Athens.


  • Participated in developing a plan for an integrated sustainable campus at the Ecolodge at San Luis.

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International Experience

Puerto Rico: 1966-1969.  Full time resident.  Conducted environmental studies for Atomic Energy Commission (now DOE): 1980-82, supervised study of plantation forests (4 mos. on site).

Venezuela: 1974-1983.  Full time resident 74-79; 3mos/ yr 79-83.  Principal Investigator and Project Coordinator for international research project on the dynamics of the Amazon Rain Forest,  Work sponsored by N.S.F., O.A.S., UNESCO, and Venezuelan Government.

Mexico: 1980-1984.  Four mos. during this period.  Consultant for Univ. Mexico on establishment of watershed studies in Jalisco.

Costa Rica: 1981-1984. Principal Investigator in Man and Biosphere project on strip cutting in montane tropical forest (4 mos. on site).

Guatemala: 1982-1983.  Assisted in Environemntal Profile for A.I.D.

Haiti: 1982-1983.  Supervised Ph.D. dissertation on energy efficiency of plantation forestry.

Brazil: 1980-83. Carried out ecological study of Jari (pulp plantation in the Amazon), 4 mos. on site; 1985-present, carrying out study of development along railroad from Carajas mine (Para) to Sao Luis on Coast.  Work sponsored by World Bank and UNDP through Companhia Vale do Rio Doce; 1987-1989, economics of agroforestry systems in Bahia; 1987-1990, World Wildlife sponsored project on reforestation of golden lion tamarin preserve, Atlantic Coastal Forest; 1992- Management of secondary rain forests near Manaus,1994 Sponsored by Smithsonian Institution; 1994-98, participatory farmer research, Altamira; 1995, conservation of primary rainforest in western Amazonas; 1999-2000, Evaluation of the MST (People without land) movement in Pernambuco, Brazil.

Vietnam: 1984.  Three week visit as part of a team studying long term effects of aerial spraying of herbicides.

Thailand: 1986-1990.  Developed a community forestry study, organized through Forest Industry Organization of Thailand and Chulalongkorn University (2 mos. on site).  Principal Investigator on an A.I.D. sponsored agroforestry (Taungya) project in Northern Thailand.

Peoples Republic of China: 1986-87. 1986: One month visiting professor at Central South Forestry University , Hunan.  1987: Consultant for Univ. Georgia Botanical Garden for plant exchange program with Central South Forestry Univ., Hunan.

Australia: 1987   Member, Scientific Committee of the Northern Rainforest Management Agency, Queensland, Australia.

The Phillipines: 1992-94 , Co-Principal Investigator for A.I.D. sustainable agriculture program.

Ecuador; 1995 - 96 Sustainable development in Cuyabeno Reserve, in  the Amazon region of Ecuador.  2000 - consultant to the World  Bank/GEF project on establishment of a conservation corridor from    the Andes to the Pacific Coast.

Costa Rica: 2006-.  Committee to develop integrated sustainable campus for  University of Georgia field station at San Luis.


Shorter visits for conferences, and workshops in Panama, Colombia, Dominican Replubic, Malaysia, Bahamas, British Virgin Islands.

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