| 水体富营养化状态对城市河道底泥吸附/释放P的影响——以江苏省苏州市河道试验研究为例 |
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| 引用本文： | 冯海艳,李文霞,杨忠芳,阮晓红.水体富营养化状态对城市河道底泥吸附/释放P的影响——以江苏省苏州市河道试验研究为例[J].中国区域地质,2010(5):739-744. |
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| 作者姓名： | 冯海艳 李文霞 杨忠芳 阮晓红 |
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| 作者单位： | [1]中国地质大学地球科学与资源学院,北京100083 [2]河海大学环境科学与工程学院,江苏南京210098 |
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| 基金项目： | 国家“863”项目《苏州水环境质量改善与综合示范》子课题（编号：2003AA601070）; 中国地质大学（北京）创新团队项目资助
致谢：在资料调研和项目实施过程中得到中科院南京土壤研究所高丽博士的帮助,在此表示衷心的感谢. |
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| 摘 要： | 以苏州古城区内的河道为研究对象,采用静态培养的方式,研究了上覆水体不同富营养化程度对底泥中P释放/吸附的影响。研究结果表明：截断外源污染后,苏州河道底泥对水体中营养盐P呈现吸收状态;随着上覆水体磷酸盐浓度的增大,单位面积底泥累积吸收的磷酸盐就越多;上覆水与底泥比值越大,底泥对P的吸附率有减小的趋势。
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| 关 键 词： | 富营养化 底泥 磷 释放 吸附 |
Influence of water body eutrophication level on phosphorus releasing/absorption from sediments in Suzhou River, Jiangsu, China |
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| FENG Hai-yan,LI Wen-xia,YANG Zhong-fang,RUAN Xiao-hong.Influence of water body eutrophication level on phosphorus releasing/absorption from sediments in Suzhou River, Jiangsu, China[J].Regional Geology of China,2010(5):739-744. |
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| Authors: | FENG Hai-yan LI Wen-xia YANG Zhong-fang RUAN Xiao-hong |
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| Institution: | 1. School of Earth Sciences and Resources, China University of Geoscience, Beijing 100083, China; 2. College of Environmental Science and Engineering, Hohai University, Nanjing 210098, Jiangsu, China ) |
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| Abstract: | Studies on the influence of water body eutrophication level on phosphorus releasing/absorption from sediments in Suzhou River were conducted under mimicked static state experiments. The results were given as follows： sediments from Suzhou River can absorb P in static state without external input; with the increasing of phosphate concentration, the phosphate adsorption capacity of sediment also has increased; the higher ratio of over-lying water to sediment it is, the lower phosphorus absorbing capacity on sediments will be. |
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| Keywords: | eutrophication sediments phosphorus release absorption |
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