Hydrology-vegetation interactions on the South Florida Landscape. Landscape-scale simulation for evaluating ecological effects of hydrologic restoration alternatives for Everglades/Big Cypress (South Florida Restudy). The hydrology/vegetation model provides the foundation for higher trophic level models (e.g., wading birds, panthers, snail kites) that are part of the Across Trophic Level System Simulation (ATLSS) program (grant to the University of Tennessee, funded by the USGS Biological Research Division, and the Army Corps of Engineers) (M. Huston and L. Gross, PIs, ~$230,000/yr, 1995-99)
Use of Multi-scale Biophysical Models for Ecological Assessments: Applications in the Southeastern United States. Landscape analysis and modeling project focusing on predicting spatiotemporal variability in terrestrial and aquatic ecological properties across landscapes at a range of spatial scales in the Southern Appalachian region. (M. Huston, P.I., ~$570,000/yr, 1996-2000, grant to the University of Tennessee funded by EPA National Center for Environmental Research and Quality Assurance)
Walker Branch Watershed, long term research on community and ecosystem processes on a forested watershed. Project Leader in charge of conceptual integration and direction of multi-investigator research on forest succession and productivity, nutrient cycling, hydrology, and response to climatic variation (1988-1993, ~$1,000,000/yr, funded by DOE Office of Health and Environmental Research grant to Oak Ridge National Laboratory). Current research focuses on response of oak-hickory forest to climate change using experimental rainfall manipulation (Throughfall Displacement Experiment).
Long-term effects of mowing and fertilization (4 x 4 factorial design) on biomass, species composition, and nutrient cycling in an oldfield plant community. Experiments established in 1978 and continued until 1988 at University of Michigan Botanical Gardens. NSF Grant to Francis Evans, University of Michigan, 1979-1983.
The effect of experimental manipulation of light and nutrients on the growth and competitive interactions of rainforest tree species. Experimental mixed and monospecific plots of native species established at La Selva, Costa Rica in 1979, with measurement of tree growth and mortality continued through 1992.
Nutrient availability at a lowland tropical site on volcanically derived soils: Interactions of microbial, vegetation, and abiotic processes (with G.P. Robertson and P. Sollins) (NSF BSR-8317198, funded for two years, 1984-1985)