| 颗粒态氮磷负荷模型研究 |
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| 引用本文： | 薛金凤,夏军,梁涛,张秀梅.颗粒态氮磷负荷模型研究[J].水科学进展,2005,16(3):334-337. |
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| 作者姓名： | 薛金凤 夏军 梁涛 张秀梅 |
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| 作者单位： | 1.武汉大学动力与机械学院水质科学与技术系, 湖北, 武汉, 430072; |
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| 基金项目： | 国家自然科学基金资助项目(50279049),中国科学院"百人计划"和知识创新工程资助项目(CX10G E01 08)~~ |
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| 摘 要： | 为研究妫水河流域的颗粒态氮磷非点源污染来源,以控制非点源污染,在官厅水库周围进行了野外人工降雨试验。试验数据表明,氮磷输移率与产沙率具有很好的相关性,颗粒态氮、磷的平均相关系数分别为0.9594和0.9772。建立了新的颗粒态氮磷负荷模型,其中富集系数等于泥沙中总氮总磷百分含量与土壤中百分含量之比。根据妫水河流域的土壤图、土地利用图及数字高程模型,应用新的模型研究了妫水河流域颗粒态氮磷污染负荷的空间分布。结果表明,颗粒态氮磷主要来自地表植被覆盖差的丘陵和山地。
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| 关 键 词： | 非点源污染 氮 磷 负荷模型 数字高程模型 官厅水库 妫水河 |
| 文章编号： | 1001-6791(2005)03-0334-04 |
| 收稿时间： | 2004-03-15 |
| 修稿时间： | 2004年3月15日 |
Research on load model of particulate nitrogen and phosphorus |
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| XUE Jin-feng,XIA Jun,LIANG Tao,ZHANG Xiu-mei.Research on load model of particulate nitrogen and phosphorus[J].Advances in Water Science,2005,16(3):334-337. |
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| Authors: | XUE Jin-feng XIA Jun LIANG Tao ZHANG Xiu-mei |
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| Institution: | 1.Department of Water Quality Science and Technology, College of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China;2.Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;3.National Key Laboratory of Water Resouces & Hydropower Engineering Science, Wuhan University, Wuhan 430072, China |
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| Abstract: | In order to study the origin of the particilate nitrogen and phosphorus(PN(P)) nonpoint source (NPS) pollution there,so as to get it under control,some artificial rainfall experiments was made around Guanting Reserwir.the results show that the correlation between transporting rate of PN(P) and yielding rate of sediment is very good,with the average correlation coefficient 0.9594 and 0.9772 for PN and PP respectively.Therefore,a new load model of PN(P) is put forward,in which enrichment coefficient is equal to the ratio of the percent content of total nitrogen (total phosphorus) in sediment to it in mil.While applying it,we study the spatial distribution of PN(P) loadon the Guishui watershed according to the DF1VI and the information obtained from land use map and mil map.Its results show that PN(P) mainly originated from hill and mountains where the ratio of vegetative cover is very low. |
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| Keywords: | nonpoint source pollution nitrogen phosphorus load model digital elevation model Guanting Reservoir Guishui River |
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