| 农田地表径流氮素流失特性分析 |
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| 引用本文： | 罗文兵,洪林.农田地表径流氮素流失特性分析[J].灌溉排水学报,2011,30(4):53-56. |
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| 作者姓名： | 罗文兵 洪林 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072 |
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| 基金项目： | 国家自然基金重点项目(50639040); 教育部科学研究重大项目(308017); 湖北省自然基金项目(2005ABA290) |
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| 摘 要： | 为了了解不同的灌溉条件下水旱农田地表径流氮素流失特性,开展水旱作物节水与传统灌溉条件下农田地表径流氮素流失试验研究。结果表明,不同作物类型对氮素流失影响显著,旱地铵态氮质量浓度低于水田,而硝态氮则高于水田;灌溉方式对氮素流失有一定的影响,但并不显著。虽然节水灌溉农田地表径流氮素质量浓度较高,但由于排水总量大大减少,所以...
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| 关 键 词： | 水旱作物 地表径流 氮素流失 特性 节水灌溉 |
Characteristics of Nitrogen Losses in Surface Runoff from Farmland |
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| LUO Wen-bing,HONG Lin.Characteristics of Nitrogen Losses in Surface Runoff from Farmland[J].Journal of Irrigation and Drainage,2011,30(4):53-56. |
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| Authors: | LUO Wen-bing HONG Lin |
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| Institution: | LUO Wen-bing,HONG Lin(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China) |
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| Abstract: | In order to understand the characteristics of nitrogen losses in surface runoff from upland field and paddy field under different irrigation condition,field experiments were conducted on the nitrogen losses in surface runoff from paddy fields and maize plots under water-saving irrigation and conventional irrigation.The results showed that crop types have significant impacts on nitrogen losses through influencing the plant cover,soil and water conditions in the field.Ammonium nitrogen in dryland is lower tha... |
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| Keywords: | paddy rice and upland crop surface runoff losses of nitrogen characteristic water-saving irrigation |
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