Tropical, ecosystems

A 1999 study by the Institute of Terrestrial Ecology predicts that tropical rain forests will be able to continue to absorb carbon dioxide at the current rate of 2 billion tons per year until global temperatures rise by 8°F (4.5°C). At this point, evaporation rates will be high enough to decrease rainfall for the forests, leading to the collapse of tropical ecosystems. This collapse will decrease the amount of carbon... 

C. Korner and J. A. Arnone III, Responses to elevated carbon dioxide in artificial tropical ecosystems. Science 257 1672 (1992). 

Oades JM, Gillman GP, Uehara G (1989) Interactions of soil organic matter and variable-charge clays. In Coleman DC, Oades JM, Uehara, G (eds) Dynamics of soil organic matter in tropical ecosystems. Nif TAL Project. University of Hawaii, Honolulu, USA, pp 69-95... 

Garland JL, Mills AL (1991) Classification and characterization of heterotrophic microbial communities on the basis of patterns of community-level sole-carbon-source utilization. Appl Environ Microbiol 57 2351-2359 Giuffre L, Piccolo G, Rosell R, Pascale C, Heredia OS, Ciarlo E (2001) Anthropogenic effect on soil organic phosphorus fractions in tropical ecosystems. Commun Soil Sci Plant Anal 32 1621-1628 Gottlieb S (1976) The production and role of antibiotics in soil. J Antibiot 29 987-1000... 

Biogeochemical cycling of elements and pollutants exposure pathways in the tropical ecosystems, which occur between 30°N and 30°S, are both intensive and at high probability of risk for human and ecosystem health. The tropical belt receives about 60% of solar radiation inputting on the Earth s surface. The total area of tropical ecosystems is about 40 x 106 km2, with exception of the High Mountain and Extra-Dry Sandy Deserts with strongly depressed life processes. 

Biogeochemical Cycles and Exposure Pathways of Chemical Species in Tropical Ecosystems... 

Biogeochemical Cycling and Pollutant Exposure in Dry Desert Tropical Ecosystems... 

Dry desert tropical ecosystems occupy 4.5 x 106 km2, or 3.0% of total land area of the Earth. These ecosystems have dry periods during 7-10 months a year. Not only trees, but also numerous grasses cannot grow in such severe conditions. The vegetation... 

The tropical ecosystem called grassland and savanna is found in the southern American continent (particularly northern Colombia, Bolivia, and central Brazil) and most extensively in Africa (from just below the Sahara to the Cape Province). In the East it is limited to northern Australia. 

Bergstrom, L. and H. Kirchmann Carbon and Nutrient Dynamics in Natural and Agricultural Tropical Ecosystems, CAB International, New York, NY, 1998. 

Multi-media monitoring studies not only helped increase knowledge of the status of contamination, but also provided in-depth insights into the transport behavior and fate of PTS in tropical ecosystems in Asian... 

Sharma R (2001) Impact of solar UV-B on tropical ecosystems and agriculture. Case study effect of UV-B on rice. Proceedings of Seawpit98 and Seawpit2000 1 92. Available at http //phototropism.tripod.com/UV-B.pdf. Last visited 18 March 2008... 

Lodge, D. J. (1993). Nutrient cycling by fungi in wet tropical ecosystems. In Aspects of... 

Few studies have been carried out on the fate of pesticides in tropical ecosystems. If reported, they often lack an appropriate assessment of the processes that affect fate and factors influencing those processes imder specific conditions. Due to the complexity of the environmental problems, modeling is seen as an essential tool in resolving them. 

N. Balakrishman, R. BorgstrOm, S.W. Bie, Tropical Ecosystems A Synthesis of Tropical Ecology and Conservation, International Science Publisher, Lebanon, NH, USA, 1994,44Ip. 

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