Comprehensively Harnessing Measures to Control Soil, Water and Nutrients Loss in Slope Cultivated Land of Red Soil in Yunnan

MI Yan-hua; PAN Yan-hua; SHA Ling-jie; GUO Yu-rong; LI Jin-cheng; ZHANG Xiao-lin

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Comprehensively Harnessing Measures to Control Soil, Water and Nutrients Loss in Slope Cultivated Land of Red Soil in Yunnan

更新时间：2024-11-07

- Comprehensively Harnessing Measures to Control Soil, Water and Nutrients Loss in Slope Cultivated Land of Red Soil in Yunnan
- Vol. 20, Issue 2, Pages: 17-21(2006)
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  CLC： S157.2
- Published：2006
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MI Yan-hua, PAN Yan-hua, SHA Ling-jie, et al. Comprehensively Harnessing Measures to Control Soil, Water and Nutrients Loss in Slope Cultivated Land of Red Soil in Yunnan[J]. 2006, 20(2): 17-21.
DOI：

MI Yan-hua, PAN Yan-hua, SHA Ling-jie, et al. Comprehensively Harnessing Measures to Control Soil, Water and Nutrients Loss in Slope Cultivated Land of Red Soil in Yunnan[J]. 2006, 20(2): 17-21. DOI：

摘要

在云南19.5°红壤坡耕地上设置水土流失综合治理试验样方

观测水土流失控制效果。结果表明

各观测样方的地表径流量、土壤流失和养分流失按照裸地(CK1)>传统单作玉米区(CK2)>植物篱玉米秸秆覆盖区>植物篱麻袋覆盖区>植物篱牧草活覆盖区依次降低。2004年较2003年降雨和径流明显增加

各处理土壤养分流失的增幅显著低于土壤流失的增幅;土壤养分流失与施肥量显著正相关;植物篱覆盖区的养分利用率比传统单作玉米区极显著提高

养分利用率与施肥量负相关。植物篱麻袋覆盖区和植物篱牧草活覆盖区

地表径流减少22.7%~34.0%

土壤流失减少27.1%~67.6%

养分流失减少36.8%~77.8%

养分利用率提高27.9%~45.2%;保持水、土、肥和提高养分利用率的效果都优于植物篱秸秆覆盖区。

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