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1 试验前土壤基本理化性质

Table 1 Basic physical and chemical properties of soil before carrying out the experiment

土层深度 Soil depth (cm) 砂粒 Sand (%) 粉粒 Silt (%) 黏粒 Clay (%) 容重 Bulk density (g·cm-3) 总孔隙度 Total porosity (%) 毛管孔隙度 Capillary porosity (%) 土壤抗剪强度 Soil shearing strength (kg·cm-2) 0-10 44.00 45.33 10.67 1.33 49.56 34.01 6.32 10-20 42.67 45.33 12.00 1.32 48.06 33.78 7.51