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3 沟头不同恢复年限样地土壤颗粒组成及有机质含量

Table 3 Soil mechanical composition and organic matter content of different restoration year sites of gully heads

样地编号 Site code 土层 Soil layer (cm) 黏粒含量CLA Clay content (%) 粉粒含量SIL Silt content (%) 砂粒含量SAN Sand content (%) 有机质含量SOM Soil organic matter content (%) CK 0—10 17.95±0.38BCa 64.40±1.00ABb 17.66±0.75BCa 0.81±0.04Da 10—25 16.44±0.45Cab 65.77±0.35Bab 17.78±0.70Aa 0.77±0.01Ea 25—40 14.98±1.49Cb 66.76±1.06Ba 18.26±1.84Aa 0.56±0.05Ab 0—40 16.46±1.52C 65.65±1.30C 17.90±1.24A 0.72±0.12F NR3 0—10 20.11±1.73ABa 66.33±0.95ABab 13.56±0.94Ca 1.00±0.27Da 10—25 19.70±0.99ABa 65.63±0.37Bb 14.67±0.62Ba 1.02±0.05Da 25—40 18.05±0.50Ba 67.50±0.36Ba 14.46±0.80Ba 0.79±0.12Ba 0—40 19.28±1.49B 66.49±0.99ABC 14.23±0.93CD 0.94±0.20E NR8 0—10 17.93±0.45BCa 65.99±1.08ABa 16.08±0.91BCa 1.52±0.03Ca 10—25 19.40±1.31Ba 66.83±0.51ABa 13.77±1.66BCa 1.21±0.03Cb 25—40 18.62±0.21Ba 67.62±0.59Ba 13.76±0.54BCa 1.09±0.04Cc 0—40 18.65±1.01B 66.81±1.02AB 14.54±1.58BC 1.27±0.19D NR15 0—10 20.43±1.15Aa 63.91±0.49Bc 15.66±1.46BCa 1.76±0.10Ca 10—25 21.96±0.38Aa 65.95±0.26Bb 12.09±0.32Cb 1.26±0.08Cb 25—40 21.51±2.32Aa 67.26±0.63Ba 11.24±1.99CDb 1.15±0.04Cb 0—40 21.30±1.64A 65.71±1.46BC 13.00±2.39D 1.39±0.28C NR22 0—10 17.85±0.41Ca 66.52±0.98Ab 15.64±0.69BCa 2.20±0.11Ba 10—25 19.59±1.99ABa 65.83±1.79Bb 14.58±1.12Ba 1.82±0.15Bb 25—40 20.63±0.48ABa 69.97±0.56Aa 9.40±0.56Db 1.19±0.00Cc 0—40 19.36±1.66B 67.44±2.19A 13.21±2.85CD 1.73±0.43B NR30 0—10 14.05±0.81Dc 64.49±1.47ABb 21.46±2.23Aa 3.06±0.24Aa 10—25 16.19±0.18Cb 67.90±0.59Aa 15.91±0.74ABb 2.09±0.11Ab 25—40 21.65±1.06Aa 68.46±1.26ABa 9.89±0.22Dc 1.33±0.03Dc 0—40 17.30±3.29C 66.96±2.11A 15.75±4.92B 2.16±0.72A