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分析了不同覆盖模式下农田土壤水蚀防治效果及土壤紧实度大小,并确定了最佳覆盖模式。结果表明,与传统耕作相比,保护性耕作方式下田间积水起始时间和径流起始时间较晚,可以不同程度减少土壤水蚀损失量。损失量由大到小依次为传统耕作、传统烧灰耕作、留茬5cm不覆盖、浅松秸秆覆盖、留茬5cm横垄覆盖、留茬5cm顺垄覆盖。保护性耕作方式下土壤紧实度均比传统耕作和传统烧灰耕作高。浅松覆盖为最优种植模式。
The effects of soil erosion control and soil compaction under different coverage patterns were analyzed, and the best coverage pattern was determined. The results showed that, compared with the traditional tillage, the tillage start time and runoff start time of the field were lower after the conservation tillage, which could reduce the water loss of the soil to some extent. The loss from descending order of traditional farming, traditional burning ash farming, stubble 5cm not covered, covered with loose straw, stubble covered with 5cm horizontal ridge, stubble covered with 5cm Shun ridge. Soil tillage under conservation tillage is higher than traditional farming and traditional burning ash farming. Loose cover for the optimal planting mode.