Driving force Characteristic under Different Land Use Ways Slope
Analyzed the erosion characteristic on different rainfall and different underlying horizon in base of yellow river institute of hydraulic re-search at 2008. The date shows: the soil erosion amount of bare slope and arable slope is 100 times that of grass slope; the steady soil erosion amount of small rainfall is 1/4 times that of middle rainfall and is 1/30 times that of heavy rainfall on grass slope; the change of flow shear force at 90mm/h rainfall in different land use ways, when they get the fluctuate steady state, the flow shear force of bare slope and farmland is about 2000Pa, the flow shear force of 20％％ 40％, 60％, 80％ grass cover slope are 2/5, 3/10, 1/4, 1/5 times to 2000Pao At the experiment condition, the corrosion resis-tance of soil is 5.89g/Pa.min-l, the critical flow shear force to cause rill erosion is 0.31 Pa.
Land use ways rain intensity soilerosion critical flow shear force
SHEN Zhenzhou YAO Wenyi LI Zhanbin XIAO Peiqing LI Mian YANG Jishan
Xian University of Technology Xian 710048 China The Key Lab of Yellow River Sediment. Yellow Riv The Key Lab of Yellow River Sediment. Yellow River Institute of Hydraulic Research. Yellow River Con Xian University of Technology Xian 710048 China
国际会议
山东淄博
英文
309-313
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）