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Temporal and Spatial Patterns of Soil Nutrient Availability in a Wet Tropical Forest, Costa Rica

Vandecar, Karen Lynn
Format
Thesis/Dissertation; Online
Author
Vandecar, Karen Lynn
Advisor
Lawrence, Deborah
Epstein, Howard
D’Odorico, Paolo
Abstract
Tropical wet forests now cover approximately 13.70f the earth's land surface (Melillo et al. 1993). Despite their relatively limited distribution, they support a disproportionately large percentage of the earth's biodiversity, and play a significant role in the global carbon budget (Brown & Lugo 1982, Melillo et al. 1993, Field et al. 1998, Clark et al. 2001). At present, human disturbance in the form of land use alteration is the primary driver of environmental change in tropical ecosystems, but changes in global atmospheric composition and subsequent climate changes may become ecologically significant in the future (Scholes and van Breeman 1997). Altered climatic conditions could affect the functioning of tropical ecosystems through the disruption of biogeochemical cycles. The limited temporal and spatial resolution of nutrient cycling studies in tropical ecosystems constrains our understanding of controls on nutrient availability in highly weathered soils. Note: Abstract extracted from PDF text
Language
English
Published
University of Virginia, Department of Environmental Sciences, PHD (Doctor of Philosophy), 2010
Published Date
2010-05-01
Degree
PHD (Doctor of Philosophy)
Collection
Libra ETD Repository
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