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2 不同土壤管理措施及侵蚀程度下坡耕地耕层土壤可蚀性K值变化特征

Table 2 Changes of soil erodibility K in cultivated-layer of slope farmland with different soil management measures and erosion degree（t·hm2·h·MJ-1·mm-1·hm-2）

管理措施 Management measure 土层深度 Soil depth (cm) 侵蚀程度 Erosion degree S-0 S-5 S-10 S-15 S-20 CK 0-10 0.04832Ca 0.04829Bb 0.04826Cc 0.04824Cd 0.04822Ce 10-20 0.04834Ca 0.04832Cb 0.04828Cc 0.04826Cd 0.04824Ce F 0-10 0.04834Ba 0.04832Ab 0.04829Bc 0.04827Bd 0.04825Be 10-20 0.04836Ba 0.04834Bb 0.04832Bc 0.04829Bd 0.04826Be BF 0-10 0.04836Aa 0.04835Ab 0.04833Ac 0.04829Ad 0.04827Ae 10-20 0.04839Aa 0.04837Aa 0.04835Ab 0.04831Ac 0.04829Ad