OLS : Record


Main Title Evaluation of the effects of anthropogenic activity on streamflow in the Columbia River Basin {microform}
Author Kirschbaum, Robin L.; Lettenmaier, D. P.
CORP Author Washington Univ., Seattle. Dept. of Civil Engineering.;Environmental Protection Agency, Washington, DC.
Publisher Department of Civil Engineering
Place Published Seattle, WA: Washington University
Year Published 1997
Report Number SER/TR-156; WATER RESOURCES SER/TR-156
Stock Number PB99-115479
OCLC Number 44449968
Subjects Columbia River Basin; Stream flow; Man environment interactions; Vegetation; Forests; Ecological succession; Root distribution; Root systems; Hydrologic models; Hydrograph analysis; Parameters; Scenarios; Washington
Subject Added Ent Streamflow--Columbia River Watershed; Plant ecology--Columbia River Watershed
Library   Call Number Additional Info Location Date Modified
ERBD PB99-115479 NERL/ESD-LV Library/Las Vegas,NV 06/30/2000
NTIS PB99-115479 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation vii, 146 leaves : ill. (some col.) ; 29 cm.
Abstract The primary objective of this study was to evaluate the macroscale hydrologic effects of anthropogenic changes in vegetation on streamflow. This was accomplished by comparing streamflow predictions based on current and historical vegetation scenarios. The historical frame of reference was the early 1900's and the current frame of reference was the 1990's. Changes in vegetation were represented by the assignment of vegetation parameters extracted from spatial maps of current and historical vegetation type and structural stage, where structural stage is analogous to the condition and/or successional stage of forest stands. The secondary study objective was to assess the sensitivity of predicted changes in streamflow to the specification of vegetation parameters, such as vegetation rooting depth. The model parameter which controls the vertical root distribution profile was varied in small increments as a function of structural stage and the resulting predicted current and historical scenario monthly hydrographs were compared.
Notes "Water Resources Series, Technical Report No. 156." "September 1997." "PB99-115479." Includes bibliographical references.
Supplementary Notes Sponsored by Environmental Protection Agency, Washington, DC.
Availability Notes Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.fedworld.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
Author Added Ent
Lettenmaier, Dennis P.
PUB Date Free Form 1997.
NTIS Prices PC A08/MF A02
BIB Level m
OCLC Time Stamp 20000621134156
Cataloging Source OCLC/T
Language eng
Origin OCLC
OCLC Rec Leader 01159nam 2200289Ka 45020