| 长荡湖近15年营养状态评价及限制因子研究 |
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| 引用本文： | 王菲菲,李小平,陈小华,陈无歧,刘晓臣,朱文超.长荡湖近15年营养状态评价及限制因子研究[J].环境科学与技术,2012(Z1):353-357. |
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| 作者姓名： | 王菲菲 李小平 陈小华 陈无歧 刘晓臣 朱文超 |
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| 作者单位： | 华东师范大学河口海岸学国家重点实验室;上海市环境科学研究院 |
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| 基金项目： | 国家“十一五”水体污染控制与治理科技重大专项(2009zx07106-001-001) |
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| 摘 要： | 采用综合营养状态指数法以及时间序列分析法、箱线图、Pearson相关分析等统计分析方法对长荡湖近15年的氮、磷、Chl a等监测数据进行分析,研究长荡湖的水质现状、营养物时空分布和变化规律及藻类生物量与氮磷营养盐的关系.结果表明:自2001年以来长荡湖富营养化呈加剧趋势,近15年来的透明度呈现下降趋势,Chl a浓度则以每年5.5μg/L的速率不断攀升,长荡湖随时都可能爆发大规模的蓝藻水华;长荡湖东部出水口(北干河口区)的水质好于湖体区(湖北区、湖南区、湖心区);TP为长荡湖浮游藻类生长的限制因子.
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| 关 键 词： | 氮 磷 限制因子 浮游藻类 富营养化 长荡湖 |
A Study on the Nutrition Status Evaluation and Algal Limiting Factor in Lake Changdang the Last 15-years |
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| WANG Fei-fei,LI Xiao-ping,CHEN Xiao-hua,CHEN Wu-qi,LIU Xiao-chen,Zhu Wen-chao.A Study on the Nutrition Status Evaluation and Algal Limiting Factor in Lake Changdang the Last 15-years[J].Environmental Science and Technology,2012(Z1):353-357. |
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| Authors: | WANG Fei-fei LI Xiao-ping CHEN Xiao-hua CHEN Wu-qi LIU Xiao-chen Zhu Wen-chao |
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| Institution: | 1.State Key Laboratory of Estuarine and Coastal Research,East China Normal University,Shanghai 200062,China; 2.Shanghai Academy of Environmental Sciences,Shanghai 200233,China) |
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| Abstract: | Use integrated nutrition state index,time series analysis,case analysis to analyze nitrogen,phosphorus,chlorophyll-a and other monitoring data and study the water quality,nutrients and the spatial and temporal distribution and variation of the type of nutrient limitation of Changdang Lake.The results showed that the trend of eutrophication has increased,the transparency of the past 15 years showed a downward trend,annual chlorophyll levels were rising in 5.5 mg/L;the water quality of Changdang Lake eastern outlet was better than the body area;TP was the limiting factor of algae for Changdang Lake. |
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| Keywords: | nitrogen phosphorus limiting factor planktonic algae eutrophication Changdang Lake |
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