The set-up to show effect of fire on water supply, 1930. Two quarts of water were put on each slope (20%). Most of that on the burned slope ran off with much erosion and practically no percolation. The humus covered slope always gavve 1 1/2 to 2 bottles of percolated water in 1 hour. [Handwritten addition to caption:] Run-off and Erosion Demonstration as used by Agricultural Extension Service, California, 1928 to 1932. Woodbridge Metcalf, Extension Forester
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Description
Location: average distance Identification: exact ground location unclear, appears unknowable No people present in picture
Type
image
Identifier
fritz_metcalf-6134
Subject
Erosion - Demonstrations Fires - Effects on water supply Forestry - Education University of California - Cooperative Extension Exhibits Unknown
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