Variable Source Areas of Watershed Runoff in a Small Forest Watershed. Phase 1

摘要

Examination of a small mountain watershed occupied by grand fir (Abies grandis), western red cedar (Thuja plicata), and western hemlock (Tsuga heterophylla) habitat types in northern Idaho revealed that 80 percent of the time, less than 5 percent of its area would generate runoff in response to rain or snowmelt. The extent and location of active source areas were only moderately well-correlated with the extent and location of the live stream system.