Slope Water Edge Effect in Loess Gully Area in Western Shanxi Province

Slope water edge effect in loess gully area in western Shanxi province was studied.The results as follows：first，the soil water content of slop farmland in 5 m edge space is higher than in 2 m edge space and the edge part，and the soil water content in 2 m edge space is similar with edge part.Second，the difference of soil water content between edge，middle and root part is not obvious in bench step land of 0～100 cm，but the difference is obvious in 100～200 cm，root water content than the middle part and the edge part respectively higher 18% and 68%.Third，25 cm edge space water content of scale pit in 0～100 cm layer is obviously higher than 2 cm edge space.This study could be served as guidance to ecological construction.