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在房县军店镇设置14个不同坡度和坡长的坡耕地试验小区,并进行连续3年实测资料,参照标准小区得到本区域土壤侵蚀地形因子(LS)的定量关系式LS=(L/20)0.40(S/15)1.02, 求得房县地区坡耕地土壤侵蚀的坡面地形效应(LS值)表。
Fourteen slope farmland plots with different slopes and slope lengths were set up in Fangdian Jundian Town, and the measured data of three consecutive years were obtained. The quantitative relation LS of the soil erosion topographical factor (LS) 20) 0.40 (S / 15) 1.02, the slope topographic effect (LS value) table of soil erosion on the sloping farmland in Fangxian County was obtained.