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OLS Field Name OLS Field Data
Main Title Uncertainties in Countrywide Forest Biomass Estimates.
Author Peterson, C. E. ; Turner, D. P. ;
CORP Author Corvallis Environmental Research Lab., OR. ;ManTech Environmental Technology, Inc., Corvallis, OR.
Publisher 1992
Year Published 1992
Report Number EPA/600/A-93/011;
Stock Number PB93-149250
Additional Subjects Biomass ; Forest land ; Carbon cycle ; Error analysis ; Global aspects ; Study estimates ; Statistical analysis ; Organic matter ; Air land interactions ; Air pollution ; Uncertainty
Library Call Number Additional Info Location Last
NTIS  PB93-149250 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/12/1993
Collation 13p
Abstract Country-wide estimates of forest biomass are the major driver for estimating and understanding carbon pools and flux, a critical component of global change research. Important determinants in making the estimates include the areal extend of forested lands and their associated biomass. Estimates for these parameters may be derived from surface-based data, photo interpretation or satellite remote sensing, with varying degrees of uncertainty. Ground data are typically aggregated by forest type, stand age, productivity level, and ownership. Survey priority is usually given to regions and forest types with timber of commercial value, such that information on understory biomass and forested lands of low commercial value is either absent or of limited reliability.
Supplementary Notes See also PB89-213300. Presented at the IPCC AFOS-Workshop on Carbon Balance of World's Forested Ecosystems: Towards a Global Assessment, Joensuu, Finland, May 11-15, 1992. Prepared in cooperation with ManTech Environmental Technology, Inc., Corvallis, OR.
NTIS Title Notes Symposium paper.
Category Codes 68; 68A; 48D; 57H
NTIS Prices PC A03/MF A01
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 308326255
Origin NTIS
Type CAT