ABSTRACT:
Shrub cover was thinned on portions of the Sierra Ancha Experimental Forest in Arizona from 65% to 45.5%, 21.5%, and 4.5%. Moisture tension was then measured in residual mountainmahogany shrubs to determine effects of thinning on moisture tension. A cover reduction of about 20% was necessary before moisture stress declined significantly in the remaining shrubs.
Footnotes
Oren D. Knipe is a range scientist with the Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, Forestry Sciences Laboratory, Arizona State University, Tempe 85287.
- Copyright 1985 by the Soil and Water Conservation Society
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