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| 三峡水库试验性蓄水前后大宁河富营养化状态比较 | |
| 引用本文： | 张佳磊,郑丙辉,刘录三,王丽婧,吴光应.三峡水库试验性蓄水前后大宁河富营养化状态比较[J].环境科学,2012,33(10):3382-3389. |
| 作者姓名： | 张佳磊 郑丙辉 刘录三 王丽婧 吴光应 |
| 作者单位： | 1. 中国环境科学研究院,环境基准与风险评估国家重点实验室,北京100012 中国环境科学研究院国家环境保护饮用水水源地保护重点实验室,北京100012 2. 中国环境科学研究院,环境基准与风险评估国家重点实验室,北京100012 3. 巫山县环境监测站,巫山,404700 |
| 基金项目： | 国家水体污染控制与治理科技重大专项(2009ZX07528-003); 国际科技合作计划项目(2007DFA90510) |
| 摘 要： | 基于大宁河试验性蓄水阶段(2005-09～2007-09)和正常运行阶段(2008-09～2010-09)的监测数据,对大宁河试验性蓄水前后富营养化状态进行比较,在此基础上运用Carlson的"二维坐标理论"和数理统计分析方法,探究大宁河富营养状态限制因素.结果表明,和试验性蓄水阶段相比,正常运行阶段整个研究区域TSITP呈显著上升趋势,从大宁河回水末端至长江干流,增加幅度沿程依次为23.29%、19.57%、15.58%和14.12%;TSISD和TSITN维持稳定;TSICHL总体维持稳定,仅回水末端(S1)呈上升趋势,上升幅度为17.34%.从长江干流至大宁河回水末端,TSITN、TSITP和TSISD这3个营养状态指数均呈现沿程降低的趋势;TSICHL呈现回水区(S2)和出水口(S3)较高,长江干流(S4)和回水末端(S1)较低.试验性蓄水前后各水文期特征基本呈现一致.TSITN和TSITP水文期特征表现为:汛限期、泄水期>高水位运行期>蓄水期;TSICHL水文期特征表现为:汛限期>蓄水期、泄水期>高水位运行期;TSISD水文期特征表现为:汛限期、泄水期>蓄水期>高水位运行期.正常运行期和试验性蓄水期相比,TSITN、TSITP和TSICHL在各个水文期之间的差异变小.长江干流和大宁河总氮和总磷已经超过了富营养化状态的临界值,因此营养盐并不是水体富营养化状态的限制因素;非藻类浊度控制水下光衰减而成为限制藻类生产力的关键因素.非藻类浊度和水下光照分布受到水文学特征季节动态的强烈干扰. |
| 关 键 词： | 富营养化指数 水文特征 “二维坐标理论” 大宁河 三峡水库 |
| 收稿时间： | 2011/11/2 0:00:00 |
| 修稿时间： | 2012/3/25 0:00:00 |
Comparison of Trophic Status Analysis of the Daning River Within the Three Gorges Reservoir Before and After Experimental Impoundment |
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| ZHANG Jia-lei,ZHENG Bing-hui,LIU Lu-san,WANG Li-jing and WU Guang-ying.Comparison of Trophic Status Analysis of the Daning River Within the Three Gorges Reservoir Before and After Experimental Impoundment[J].Chinese Journal of Environmental Science,2012,33(10):3382-3389. | |
| Authors: | ZHANG Jia-lei ZHENG Bing-hui LIU Lu-san WANG Li-jing and WU Guang-ying |
| Institution: | State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Environmental Protection Key Laboratory of Drinking Water Source Protection,Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Environmental Protection Key Laboratory of Drinking Water Source Protection,Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Environmental Protection Key Laboratory of Drinking Water Source Protection,Chinese Research Academy of Environmental Sciences, Beijing 100012, China;Environmental Monitoring Station of Wushan,Wushan 404700, China |
| Abstract: | |
| Keywords: | trophic state indices hydrological factors two-dimensional graphical approach Daning River Three Gorges Reservoir |
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