Our group prepares to leave Lighthouse Cave, San Salvador, Bahamas.
1) Introduce a “dualistic” conceptualization of deforestation.
2) Demonstrate how the causes of deforestation contribute directly to changes in hydrologic and atmospheric processes over time (will provide examples).
3) Show maps to demonstrate temporal/spatial land-cover changes.
4) Explore management and planning options as part of the solution to deforestation in the Tropics.
A. Introduction/Background: The “dualistic” impacts of deforestation
-Hydrosphere – Changes in the hydrological flow regime
-Atmosphere – Climatic Change
-Examples of each (Hydrosphere & Atmosphere)
B. Causes of deforestation
-Temporal Population Growth
-Temporal/Spatial Land-Use/Land-cover changes
C. Consequences of deforestation in the hydrological flow regime: A dynamic understanding of processes
D. Deforestation Statistics and land-cover changes for several countries within the Tropics
E. Management & Planning strategies used to mitigate the impacts of deforestation on hydrology
Costa M.H.; Botta A; Cardille JA. 2003. Effects of large-scale changes in land-cover on the discharge of the Tocantins River, Southeastern Amazonia. Journal of Hydrology, 283(1-4):206-217.
Gallart, F; Llorens P. 2003. Catchment under environmental Change: Impact of land cover on water resources. Water International, 28(3): 334-340.
Geist, H., and Lambin, E., 2002. Proximate Causes and Underlying Driving Forces of Tropical Deforestation. BioScience 52:143-150.
Marengo, JA. 1995. Variations and change in South-American streamflow. Climatic Change, 31(1): 99-117.
Sahin V; Hall MJ. 1996. The effects of afforestation and deforestation on water yields. Journal of Hydrology, 178(1-4):293-309.
Sharma, KP; Moore B; Vorosmarty CJ. 2000. Anthropogenic, climatic, and hydrologic trends in the Kosi Basin, Himalaya. Climatic Change, 47(1-2):141-165.
Viramontes D; Descroix L. 2003. Changes in the surface water hydrologic characteristics of an endoreic basin of northern Mexico from 1970 to 1998. Hydrological Processess, 17(17): 1291-1306.
Zhang, H., Henderson-Sellers, A., and McGuffie K., 2001. The Compounding Effects of Tropical Deforestation and Greenhouse Warming on Climate. Climatic Change 49: 309-338.
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