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| 连续降雨对淡水河流域非点源污染的影响 | |
| 引用本文： | 张恒,曾凡棠,房怀阳,张恒军,萧洁儿,虢清伟,曾东,欧阳正.连续降雨对淡水河流域非点源污染的影响[J].环境科学学报,2011,31(5):927-934. |
| 作者姓名： | 张恒 曾凡棠 房怀阳 张恒军 萧洁儿 虢清伟 曾东 欧阳正 |
| 作者单位： | 1. 环境保护部华南环境科学研究所,环境模拟与污染控制研究中心,广州,510655;中国科学院广州地球化学研究所,广州,510640 2. 环境保护部华南环境科学研究所,环境模拟与污染控制研究中心,广州,510655 3. 环境保护部华南环境科学研究所,东江水环境研究中心,惠州,516100 |
| 基金项目： | 国家水体污染控制与治理科技重大专项河流主题(2008ZX07011-0010) |
| 摘 要： | 利用淡水河流域污染物通量站的连续流量水质监测数据,研究了4场连续降雨对流域非点源污染的影响.相关分析结果表明,在连续降雨期间,污染浓度与流域相关性不显著,但NH4+ -N、TP及TN通量与流量之间存在显著相关关系,污染物通量与流量的相关系数大小顺序如下:TP＞NH4+ -N＞TN＞SS＞NO3——N.另外,统计结果表明... |
| 关 键 词： | 淡水河流域 连续降雨 非点源污染 污染物通量站 |
| 收稿时间： | 2010/7/13 0:00:00 |
| 修稿时间： | 2010/11/10 0:00:00 |
Impact of consecutive rainfall on non-point source pollution in the Danshui River catchment |
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| ZHANG Heng,ZENG Fantang,FANG Huaiyang,ZHANG Hengjun,XIAO Jie''er,GUO Qingwei,ZENG Dong and OUYANG Zheng.Impact of consecutive rainfall on non-point source pollution in the Danshui River catchment[J].Acta Scientiae Circumstantiae,2011,31(5):927-934. | |
| Authors: | ZHANG Heng ZENG Fantang FANG Huaiyang ZHANG Hengjun XIAO Jie'er GUO Qingwei ZENG Dong and OUYANG Zheng |
| Institution: | 1. Research Center of Environmental Simulation and Pollution Control, South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655; 2. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640,Research Center of Environmental Simulation and Pollution Control, South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655,Research Center of Environmental Simulation and Pollution Control, South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655,Research Center of Environmental Simulation and Pollution Control, South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655,Research Center of Environmental Simulation and Pollution Control, South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655,Aquatic Environment Research Center of East River, South China Institute of Environmental Science, Ministry of Environmental Protection, Huizhou 516100,Aquatic Environment Research Center of East River, South China Institute of Environmental Science, Ministry of Environmental Protection, Huizhou 516100 and Aquatic Environment Research Center of East River, South China Institute of Environmental Science, Ministry of Environmental Protection, Huizhou 516100 |
| Abstract: | The aim of this study was to investigate the impact of 4 consecutive rainfalls on non-point source pollution in the Danshui River catchment. Continuous measurements for water flows and water quality constituents were obtained at a pollutant flux station at the outlet of the Danshui River catchment. Results of regression analysis showed that there were no significant correlations between pollutant concentrations and water flows during consecutive rainfall, whereas significant correlations with water flows were found for pollutant fluxes. The sequence of correlations between pollutant fluxes and run off was listed as follows: TP>NH3-N>TN>SS>NO3-N. Statistic analysis was performed to compare pollutant output in storm events under similar rainfall condition. For long duration rainfall, fluxes of SS, TN and NH3-N of storm 3 decreased by 36%, 29% and 28% in comparison with storm 1. In the case of short duration rainfall, fluxes of SS, TN and NH3-N of storm 4 dropped by 8%, 32% and 26% when compared with storm 2. In contrast, NO3-N fluxes increased by 70% and 98% respectively (also storm 1 vs. storm 3, storm 2 vs. storm 4), while TP fluxes remained stable during consecutive rainfall. |
| Keywords: | Danshui catchment Successive precipitation Non point source pollution pollution flux survey station |
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