| 地膜覆盖对农田径流中氮磷流失的影响 |
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| 引用本文： | 邓伟,许振成,吴根义,贺德春.地膜覆盖对农田径流中氮磷流失的影响[J].安徽农业科学,2011,39(16):9687-9689,9710. |
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| 作者姓名： | 邓伟 许振成 吴根义 贺德春 |
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| 作者单位： | 1. 湖南农业大学资源与环境学院,湖南,长沙,410128
2. 环境保护部华南环境科学研究所,广东,广州,510655 |
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| 基金项目： | 环保部公益基金项目“亚热带农业污染系统控制技术研究”(200809093) |
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| 摘 要： | 目的]减少农田氮磷的径流流失。方法]研究3种不同地膜覆盖：塑料覆盖,秸秆覆盖和无覆盖方式对农田氮磷径流流失的影响。结果]地膜覆盖增加了径流量,但减少了雨水对种植土壤的冲刷,降低了径流中氮磷的浓度,从而减少了径流中氮磷的流失;塑料薄膜覆盖地块增加的径流较多,但氮磷流失总量最少;秸秆覆盖地块产生的氮磷流失量略大于塑料薄膜覆盖地块,但作物产量高于塑料薄膜地块,同时不会产生二次污染结论]秸秆地膜覆盖可以减少农田氮磷的径流流失,增加产量,且不产生二次污染,是较好的农作方式。
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| 关 键 词： | 地膜覆盖 地表径流 氮磷流失 |
The Effected of Mulch Film on Nitrogen and Phosphorus Loss in Agricultural Runoff |
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| DENG Wei et al.The Effected of Mulch Film on Nitrogen and Phosphorus Loss in Agricultural Runoff[J].Journal of Anhui Agricultural Sciences,2011,39(16):9687-9689,9710. |
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| Authors: | DENG Wei |
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| Institution: | DENG Wei et al (College of Resource and Environmental,Hunan Agricultural University,Changsha,Hunan 410128) |
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| Abstract: | Objective] The aim of the study was to seek a good way to reduce nitrogen and phosphorus loss in agricultural runoff. Method] The effect of three kinds of mulch film: plastic film mulching, straw mulching, none mulching on nitrogen and phosphorus loss in agriculture was investigated. Result] The results showed that: Although mulching increased runoff, reduced the rains washed out planting soil, so the concentration and total loss of nitrogen and phosphorus in runoff was lowered; The land of plastic film ... |
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| Keywords: | Mulch film Runoff Loss of nitrogen and phosphorus |
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