Abstract
Terrace-slope land, referring to the side slope of terraces and the ridge of paddyfields is one of the land resources in the Sichuan Basin, China, with favorable sunlight and heat, but a limited amount of water and soil. We investigated the amount and distribution of terrace slopes in the purple rock area of the central part of the Sichuan Basin, and examined the effects of different approaches to ameliorate the soil and water conditions of terrace slopes. The results showed that the total area of terrace slopes accounted for 15% of the basin land, and that for different treatments, decrease in runoff and soil loss was in order: straw mulch > contour ridge > rye grass strip > CK and micro basin gathering.
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