土壤管理措施对坡耕地侵蚀退化耕层的恢复作用

宋鸽,史东梅,蒋光毅,江娜,叶青,张健乐

Effects of Different Fertilization Methods on Restoration of Eroded and Degraded Cultivated-Layer in Slope Farmland

SONG Ge,SHI DongMei,JIANG GuangYi,JIANG Na,YE Qing,ZHANG JianLe

表3 土壤属性指标与土壤可蚀性K值相关系数

Table 3 Correlation coefficient between soil attribute index and soil erodibility K

管理措施 Management measure 砂粒 Sand 粉粒 Silt 黏粒 Clay 容重 Bulk density 总孔隙度 Total porosity 毛管孔隙度 Capillary porosity 土壤抗剪强度 Soil shearing strength 初始入渗率 Initial infiltration rate 稳定入渗率 Infiltration capacity 平均入渗率 Average infiltration rate 饱和导水率 Hydraulic conductivity CK -0.997** 0.996** 0.998** -0.982** 0.992** 0.996** 0.363 0.995** 0.988** 0.990** 0.993** F -0.992** 0.991** 0.992** -0.965** 0.992** 0.988** 0.569 0.981** 0.977** 0.980** 0.976** BF -0.996** 0.997** 0.996** -0.996** 0.993** 0.994** 0.534 0.984** 0.973** 0.980** 0.983**