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| 三峡水库蓄水前后干流总磷浓度比较 | |
| 引用本文： | 娄保锋,印士勇,穆宏强,张翔.三峡水库蓄水前后干流总磷浓度比较[J].湖泊科学,2011,23(6):863-867. |
| 作者姓名： | 娄保锋 印士勇 穆宏强 张翔 |
| 作者单位： | 1. 长江流域水环境监测中心,武汉,430010 2. 长江流域水资源保护局,武汉,430010 3. 武汉大学水资源与水电工程科学国家重点实验室,武汉,430072 |
| 基金项目： | 水利部公益性行业科研专项项目，国家自然科学基金，国家重大水专项项目 |
| 摘 要： | 为认识三峡工程蓄水对水库总磷浓度的影响,于蓄水前(1998 - 2002年)和蓄水后(2004 - 2009年)每月对三峡水库干流5个断面总磷浓度进行监测并对数据进行分析.结果表明,同蓄水前相比,蓄水后水库近坝水体总磷浓度显著降低,至2009年,巴东官渡口断面和坝上太平溪断面总磷浓度比蓄水前分别下降了42.8％和54.... |
| 关 键 词： | 水电工程 三峡水库 总磷 蓄水 |
| 收稿时间： | 2010/11/30 0:00:00 |
| 修稿时间： | 5/6/2011 12:00:00 AM |
Comparison of total phosphorus concentration of Yangtze River within the Three Gorges Reservoir before and after impoundment |
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| LOU Baofeng,YIN Shiyong,MU Hongqiang and ZHANG Xiang.Comparison of total phosphorus concentration of Yangtze River within the Three Gorges Reservoir before and after impoundment[J].Journal of Lake Science,2011,23(6):863-867. | |
| Authors: | LOU Baofeng YIN Shiyong MU Hongqiang and ZHANG Xiang |
| Institution: | Yangtze Valley Water Environmental Monitoring Center, Wuhan 430010, P.R.China,Yangtze Valley Water Environmental Monitoring Center, Wuhan 430010, P.R.China,Yangtze Valley Water Resource Protection Bureau, Wuhan 430010, P.R.China and State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, P.R.China |
| Abstract: | In order to study the impact of the Three Gorges Project on concentration of total phosphorus(TP), TP concentration of five sections in Yangtze River within the Three Gorges Reservoir was monitored monthly between 1998 and 2009(impoundment be-gan in 2003).Results showed that there have appeared new characteristics in spatial and temporal distribution of TP concentration after impoundment.TP concentration of water column near the dam decreased significantly comparing with that before impound-ment.For example, the average TP concentration of Guandukou section and Taipingxi section in 2009 decreased by 42.8% and 54.9% than that before impoundment, respectively.TP concentration in wet season was still higher than that in even and dry sea-sons.Nearer the dam, smaller difference was observed between values in different seasons.After impoundment TP concentration declined from the tail to the head of the reservoir, and it decreased by 61%-65% from Qingxichang section(in the downstream of Fuling) to Taipingxi section(near the dam).The decrease was prominent especially in wet season.The reason for changes of TP concentration mentioned above was mainly due to sedimentation of sand in the reservoir, which resulted from water level increased and the velocity decreased. |
| Keywords: | Hydropower project Three Gorges Reservoir total phosphorus impoundment |
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