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论文介绍了西南喀斯特地区坡地岩土组构与产流产沙的特点,系统阐明了农耕促进土壤地表、地下流失和生物流失,间接驱动坡地石质化的机制,和犁耕运移土壤,直接驱动坡地石质化的机制。分析了石质坡地和土质坡地的农耕驱动土地石质化的主要方式,并给出了相应的防治对策。坡腰土石质土地是西南喀斯特丘陵坡地加速石质化发生的主要地段,要痛下决心,彻底改变坡腰土石质土地的农业利用方式,尽可能退耕还林、还灌、还草,尽量避免犁耕运移土壤和扰动土壤。
This paper introduces the characteristics of rock mass and sediment yield and runoff on the slope in southwest karst area. It systematically expounds the mechanism of agro-stimulation of soil surface, underground drainage and biological loss, indirect driving of stony slope, plowing and transporting soil, direct driving Slope stony mechanism. This paper analyzes the main ways of stoning and aggradation on the stony slopes and soil slopes, and gives the corresponding control measures. Pothogeos soil land is the main section of the accelerated karst rocky slope in the southwest Karst hills. It is necessary to make a determined decision to completely change the agricultural utilization mode of the rocky soil on the potholder. If possible, Plowing Moves soil and disturbances the soil.