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RECORD NUMBER: 20 OF 34

OLS Field Name OLS Field Data
Main Title Improved Model for Estimating Emissions of Volatile Organic Compounds from Forests in the Eastern United States.
Author Geron, C. D. ; Guenther, A. B. ; Pierce, T. E. ;
CORP Author National Center for Atmospheric Research, Boulder, CO. Atmospheric Chemistry Div. ;National Oceanic and Atmospheric Administration, Research Triangle Park, NC. Atmospheric Sciences Modeling Div.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher c20 Jun 94
Year Published 1994
Report Number EPA-68W00043; EPA/600/J-94/351;
Stock Number PB94-210440
Additional Subjects Ecosystems ; Mathematical models ; Forest management ; Pollution control ; Reprints ; Estimates ; Emissions ; Volatile organic compounds ; Bioindicators ; Atmospheric composition ; Carbon cycle ; Forest trees ; Biomass ; Species diversity ; Conifers ; Oak trees ; Photosynthesis ; Nitrogen oxides ; Solar radiation ; Plant growth ; Terpene compounds ; Eastern Region(United States) ; Plant canopies ; Diameter at breast height
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NTIS  PB94-210440 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 11/11/1994
Collation 22p
Abstract
The article discusses an improved model for estimating emissions of volatile organic compounds (VOCs) from forests in the Eastern U.S. Regional estimates of biogenic volatile organic compound (BVOC) emissions are important inputs for models of atmospheric chemistry and carbon budgets. Since forests are the primary emitters of BVOCs, it is important to develop reliable estimates of their areal coverage and BVOC emission rate. A new system is developed to estimate these emissions for specific tree genera at hourly and county level resolution. The U.S. Department of Agriculture (USDA) Forest Services' Forest Inventory and Analysis (FIA) Eastwide Database is used to describe areal extent, species composition, and tree diameter distribution of U.S. forests. Horizontal canopy occupancy by genera is then estimated as a function of diameter at breast height. Growing season peak foliar masses are derived from the empirical literature for canopies of deciduous and coniferous genera. A simple canopy model is used to adjust photosynthetically active solar radiation at five vertical levels in the canopy.