| 赣江尾闾区农田沟渠径流中氮磷负荷与迁移特征 |
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| 引用本文： | 向速林,王全金,徐刘凯,聂发辉.赣江尾闾区农田沟渠径流中氮磷负荷与迁移特征[J].河南农业科学,2012,41(3):72-74. |
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| 作者姓名： | 向速林 王全金 徐刘凯 聂发辉 |
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| 作者单位： | 1. 华东交通大学环境工程系,江西南昌330013;南昌大学教育部鄱阳湖湖泊生态与生物资源利用重点实验室,江西南昌330047
2. 华东交通大学环境工程系,江西南昌,330013 |
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| 基金项目： | 国家自然科学基金项目(51148006);江西省科技支撑重点项目(2010BNA09600);江西省自然科学基金项目(2009GZH0023);华东交通大学铁路环境振动与噪声教育部工程研究中心资助项目(09TM11) |
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| 摘 要： | 为定量研究农田径流中氮磷负荷,通过野外采样和室内分析相结合的方法,研究了赣江尾闾区休耕期农田沟渠径流中氮、磷含量水平及其迁移特征。结果表明,农田沟渠径流中总氮(TN)、总磷(TP)含量均值分别为1.177mg/L、0.044mg/L,与同时期下游河渠水体中氮、磷含量(TN为0.936mg/L,TP为0.032mg/L)相比,农田沟渠径流中氮、磷含量较高,对河渠水体中氮、磷含量水平具有重要贡献;在沿程变化上,其含量虽然有起伏变化,但总的趋势为沿程下降。农田沟渠系统对氮磷均有一定的截留去除效果。
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| 关 键 词： | 赣江尾闾区 农田地表径流 氮磷负荷 迁移特征 |
Nitrogen & Phosphorus Loading and Migration of Farmland Ditch Runoff in Ganjiang River |
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| XIANG Su-lin
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WANG Quan-jin
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XU Liu-kai
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NIE Fa-hui.Nitrogen & Phosphorus Loading and Migration of Farmland Ditch Runoff in Ganjiang River[J].Journal of Henan Agricultural Sciences,2012,41(3):72-74. |
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| Authors: | XIANG Su-lin WANG Quan-jin XU Liu-kai NIE Fa-hui |
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| Institution: | 1(1.Department of Environment Engineering,East China Jiao Tong University,Nanchang 330013,China; 2.Ministry of Education Key Laboratory of Poyang Lake Ecology and Bioresource Utilization, Nanchang University,Nanchang 330047,China) |
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| Abstract: | The nitrogen & phosphorus concentration levels and migration of farmland ditch runoff in Ganjiang river were investigated based on field sampling and experimental analysis.Results showed that the mean values of total nitrogen(TN) and total phosphorus(TP) were 1.177 mg/L and 0.044 mg/L,respectively.In comparison with rivers(TN=0.936 mg/L,TP=0.032 mg/L),the nitrogen & phosphorus contents of farmland ditch runoff were higher,which could contributes greatly to river nitrogen & phosphorus.In spatial distribution of nitrogen & phosphorus concentration,the changes of their contents fluctuated,but the general trend was decreasing gradually.The farm ditch system had a good interception and removal efficiency of nitrogen and phosphorus. |
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| Keywords: | Ganjiang river farmland ditch runoff nitrogen & phosphorus loading migration |
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