土壤侵蚀对紫色土坡耕地耕层物理及力学特性的影响

江娜,史东梅,蒋光毅,宋鸽,司承静,叶青

Effects of Soil Erosion on Physical and Mechanical Properties of Cultivated Layer of Purple Soil Slope Farmland

Na JIANG,DongMei SHI,GuangYi JIANG,Ge SONG,ChengJing SI,Qing YE

表4 坡耕地土壤物理性质相关性分析

Table 4 Correlation analysis of soil physical properties on slope farmland

土壤容重 Soil bulk density 土壤总 孔隙度 Soil total porosity 毛管孔 隙度 Soil capillary porosity 砂粒Sand 粉粒 Silt 黏粒 Clay 饱和导 水率 Saturated hydraulic conductivity 初始入 渗率 Initial soil infiltration 平均 入渗率 Average infiltration rate 稳定入 渗率 Stable infiltration rate 抗剪强度 Soil shear strength 土壤紧 实度 Soil compactibility Z1 1 Z2 -1.000** 1 Z3 -0.696** 0.698** 1 Z4 0.655** -0.655** -0.517* 1 Z5 -0.770** 0.770** 0.549* -0.978** 1 Z6 0.880** -0.881** -0.741** 0.429 -0.561* 1 X1 -0.859** 0.858** 0.697** -0.774** 0.841** -0.824** 1 X2 -0.924** 0.923** 0.763** -0.709** 0.789** -0.873** 0.947** 1 X3 -0.750** 0.749** 0.595** -0.814** 0.843** -0.614** 0.853** 0.857** 1 X4 -0.935** 0.934** 0.788** -0.684** 0.766** -0.865** 0.909** 0.973** 0.872** 1 Y5 0.889** -0.890** -0.696** 0.435 -0.572** 0.991** -0.840** -0.889** -0.644** -0.876** 1 Y6 0.769** -0.770** -0.968** 0.547* -0.606** 0.840** -0.758** -0.825** -0.668** -0.841** 0.807** 1