Richard Hallett

research ecologist, USDA Forest Service

B.S., Forest Science, University of Wisconsin, Madison, 1984. M.S., Forestry, University of New Hampshire, 1991. Ph.D., Natural Resources, University of New Hampshire, 1996. Research Interests: 1. Develop the capability to map forest canopy level cation concentrations using emerging remote sensing technology. 2. Use maps developed in (1) to parameterize ecosystem models, assist with national forest land management planning, and assess ecosystem health at the landscape scale. 3. Understand how the biogeochemical status of a given site may affect sugar maple health. Current Research: 1. Extensive Databases and High Resolution Remote Sensing as Drivers for Models of Ecosystem Function: A Case Study of the White Mountain National Forest, New Hampshire. 2. Assessing the effects of historical land use on forest productivity and response to climate change and CO2: A remote sensing, field, and modeling analysis of the White Mountain National Forest. 3. Foliar chemistry as an indicator of forest ecosystem status, primary production and stream water chemistry. 4. Regional Sugar Maple Study.