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| 不同农艺措施对坡耕地水土及氮磷流失的控制 | |
| 引用本文： | 张丽,刘玲花,程东升,赵建伟,戢正华,贺茂银,周怀东,朱端卫.不同农艺措施对坡耕地水土及氮磷流失的控制[J].水土保持学报,2009,23(5). |
| 作者姓名： | 张丽 刘玲花 程东升 赵建伟 戢正华 贺茂银 周怀东 朱端卫 |
| 作者单位： | 1. 华中农业大学农业部亚热带农业资源与环境重点开放实验室,湖北,武汉,430070 2. 中国水利水电科学研究院水环境研究所,北京,100038 3. 湖北省十堰市农业生态环境保护站,湖北,十堰,442000 |
| 基金项目： | 国家自然科学基金创新研究群体基金，国家科技支撑计划，水专项 |
| 摘 要： | 研究了丹江口水库水源涵养地小流域植物篱和4种农艺措施相结合对坡耕地水土和氮磷养分流失的拦截效果.结果表明:平衡施肥、间作和垄作对坡耕地均能不同程度地截留土壤和氮磷,其中,分别减少氮素和磷素流失31.22×10~(-2)～40.05×10~(-2)kg/hm~2和0.03×10~(-2)～1.04×10~(-2)kg/hm~2;植物篱小区地表径流量和土壤侵蚀量较对照分别减少了31.3%和53.9%.上述措施对小流域养分、水土流失都起到了很好的防控作用. |
| 关 键 词： | 农艺措施 水土流失 养分流失 |
Impact of Different Agronomic Measures on Control of Nitrogen, Phosphorus, Soil and Water Loss on Sloping Land |
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| ZHANG Li,LIU Ling-hua,CHENG Dong-sheng,ZHAO Jian-wei,HE Zheng-hua,HE Mao-yin,ZHOU Huai-dong,ZHU Duan-wei.Impact of Different Agronomic Measures on Control of Nitrogen, Phosphorus, Soil and Water Loss on Sloping Land[J].Journal of Soil and Water Conservation,2009,23(5). | |
| Authors: | ZHANG Li LIU Ling-hua CHENG Dong-sheng ZHAO Jian-wei HE Zheng-hua HE Mao-yin ZHOU Huai-dong ZHU Duan-wei |
| Abstract: | The plant hedgerow and four agricultural measures were investigated for soil, water and nutrient loss via surface runoff and sedimentation on sloping land in water conservation watershed of Danjiangkou reservoir. The result shows that balanced fertilization, intercrop and ridge, reduced 31. 22 ×10~(-2)~40. 05 × 10~(-2) kg/hm~2 and 0. 03× 10~(-2)- 1.04×10~(-2) kg/hm~2 respectively, whichever could head off the soil, nitrogen, phosphorus. Compared with the control, hedgerow plots reduced 31. 3%, 53. 9% of runoff and sediment yield. Thus, those measures played a good role in the prevention of the nutrient, soil and water loss in small watershed. |
| Keywords: | agricultural measures soil and water loss nutrient loss |
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