International Rainwater Catchment Systems Conference
Catchment: An Answer to the Water Scarcity of the Next Millennium."
Petrolina, Brazil - July 1999
Section 10: Rainwater Runoff Management
Rainfall Runoff and Sediment Reduction Effect of
Hedgerow Plants on Purple Soil Slopeland
Cai Qiangguo & K. F. Andrew Lo
Institute of Geography, Chinese Academy of Sciences
Rainfall runoff and sediment reduction effect by hedgerows
plants on purple soil slopeland were studied based on natural precipitation
observations and simulated rainfall experiments. Measurement data revealed that
hedge plants grown on 25 degrees slopeland can reduce runoff by 22-43 percent
and sediment yield by 94-98 percent. These substantial decreases can be
achieved at a cost of only 10-20 percent of the stone ridge horizontal
terraces. Hence, it is an effective way to control runoff and soil loss in
ameliorating slopeland utilization in the Three Gorges Reservoir areas of
Yangtze River, China.
PDF of full document (11pp, 40kb)
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