Simulated Experiment on Wind Erosion Resistance of Salix Residual in the Agro-Pastoral Ecotone

Plant residual is of great importance in retarding soil wind erosion the agro-pastoral ecotone. However, few studies have determined effects sand plant on resistance. Based field surveys, influences Salix biomass 200, 400, 600, and 800 g m ?2 , incorporated with a thickness 0.5, 1.0, 2.0 cm, typical proportion branches leaves (2:1, 1:1, 1:2) resistance were investigated using simulated tunnel. The results showed following: 1) loss amount ranged from 1.56 to 40.8 kg as decreased 0 critical value 400 . 2) As soil-incorporated increased, reduced rapidly, especially for 0–9 cm above surface accounting 84.6% total. 3) branch more important resisting compared its leaves. This kind study may provide theoretical explanations optimal reconstruction sandy vegetation northern wind-sand regions.