Managing Forests for Water Yield: The Importance of Scale

Examination of expected changes in water yield for a large area where vegetation thinning has been proposed in the Sierra Mountains of California indicates that the size of the area has an important bearing on annual runoff. At the smallest scales, some treated areas may have easily measured changes...

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Bibliographic Details
Published in:Journal of forestry 2000-12, Vol.98 (12), p.15-19
Main Authors: Huff, D.D., Hargrove, B., Tharp, M.L., Graham, R.
Format: Article
Language:English
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Summary:Examination of expected changes in water yield for a large area where vegetation thinning has been proposed in the Sierra Mountains of California indicates that the size of the area has an important bearing on annual runoff. At the smallest scales, some treated areas may have easily measured changes in water yield, with the potential for impacts on aquatic biota and water quality. The average changes in annual runoff per unit area for large tracts, however, are too small to be measured directly and thus must be quantified by using models to extrapolate existing knowledge.
ISSN:0022-1201
1938-3746
DOI:10.1093/jof/98.12.15