黄土高塬沟壑区植被恢复对沟头土壤团聚体特征及土壤可蚀性的影响

王文鑫,王文龙,郭明明,王天超,康宏亮,杨波,赵满,陈卓鑫

Effects of Natural Vegetation Restoration on Characteristics of Soil Aggregate and Soil Erodibility of Gully Heads in Gully Region of the Loess Plateau

WenXin WANG,WenLong WANG,MingMing GUO,TianChao WANG,HongLiang KANG,Bo YANG,Man ZHAO,ZhuoXin CHEN

表2 沟头不同恢复年限样地WR0.25、MWD、GMD

Table 2 WR0.25, MWD and GMD of different restoration age sites of gully heads

样地编号 Site code 土层Soil layer (cm) WR0.25 (%) MWD (mm) GMD (mm) CK 0—10 28.194±2.239Da 0.442±0.037Da 0.210±0.010Ea 10—25 26.410±1.248Dab 0.374±0.014Cb 0.196±0.002Da 25—40 22.910±0.304Db 0.311±0.005Dc 0.181±0.001Db 0—40 25.838±2.653D 0.376±0.058E 0.196±0.013E NR3 0—10 32.519±2.440Da 0.520±0.043Da 0.230±0.013DEa 10—25 29.335±0.735Da 0.460±0.018Ca 0.213±0.004Da 25—40 24.757±0.421Db 0.352±0.017Db 0.189±0.002Db 0—40 28.870±3.518D 0.444±0.075E 0.211±0.019E NR8 0—10 38.078±2.010Ca 0.674±0.060Ca 0.271±0.016Da 10—25 35.183±1.727Ca 0.625±0.050Bab 0.255±0.013Cab 25—40 30.944±0.983Cb 0.539±0.003Cb 0.230±0.003Cb 0—40 34.735±3.353C 0.613±0.072D 0.252±0.021D NR15 0—10 44.081±1.227Ca 0.784±0.012Ca 0.315±0.005Ca 10—25 40.119±1.705Bb 0.694±0.037Bb 0.285±0.012Cb 25—40 37.946±1.326Bb 0.651±0.028Bb 0.269±0.008Bb 0—40 40.715±2.917B 0.710±0.062C 0.290±0.021C NR22 0—10 48.641±2.158ABa 1.139±0.072Ba 0.412±0.024Ba 10—25 46.441±2.370Aa 1.061±0.079Aab 0.382±0.023Ba 25—40 39.771±1.237ABb 0.877±0.082Ab 0.316±0.021Ab 0—40 44.951±4.261A 1.026±0.135B 0.370±0.046B NR30 0—10 52.439±2.424Aa 1.312±0.064Aa 0.477±0.035Aa 10—25 49.297±1.889Aa 1.168±0.081Aa 0.419±0.028Aa 25—40 41.383±1.247Ab 0.952±0.053Ab 0.336±0.016Ab 0—40 47.706±5.030A 1.144±0.162A 0.411±0.064A