INCREASING PRODUCTION WITHOUT ACCELERATING EROSION 24] 
UPPER ANCHOR 
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INTERMEDIATE 
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Figure 2. A cable logging system that appears satisfactory to harvest 
timber on steep watershed lands with a minimum of erosion and other 
destruction to the watershed. 
improve productivity and also to prevent watershed damage. 
Destructive exploitation is always tempting when risks are high 
and the profit margin low. Sustained, forward-looking operations 
are encouraged when products removed are suited to a diversity 
of uses and when reasonable profit can be obtained without 
excessive risks. 
Effects of Land Management on Water Supplies 
Comparatively little streamflow is yielded by the low-lying 
grasslands and woodlands where most rains are absorbed by the 
dry soil. Although flash floods follow cloudburst storms, often such 
