| 新安江水库近10年水质演变趋势及与水文气象因子的相关分析 |
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| 引用本文： | 盛海燕,吴志旭,刘明亮,何剑波,虞左明,韩轶才,张银龙.新安江水库近10年水质演变趋势及与水文气象因子的相关分析[J].环境科学学报,2015,35(1):118-127. |
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| 作者姓名： | 盛海燕 吴志旭 刘明亮 何剑波 虞左明 韩轶才 张银龙 |
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| 作者单位： | 1. 南京林业大学生物与环境学院, 南京 210037;2. 杭州市环境保护科学研究院, 杭州 310014;淳安县环境保护监测站, 淳安 311700;杭州市环境保护科学研究院, 杭州 310014;杭州市环境保护科学研究院, 杭州 310014;杭州市环境保护科学研究院, 杭州 310014;杭州市环境保护科学研究院, 杭州 310014;南京林业大学生物与环境学院, 南京 210037 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项(No.2009ZX07528-003);杭州市环境保护科研计划重大项目(No.2010116);杭州市重大科技创新专项(No.20122513A01) |
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| 摘 要： | 根据2003—2012年水质逐月监测数据和水文气象资料,对新安江水库水质和营养状态变化进行分析,探讨了新安江水库水质演变规律及其与水文气象因子之间的关系.结果表明,近10年间新安江水库总磷、总氮、生化需氧量和p H存在显著的年际变化.叶绿素a浓度上升趋势明显.综合营养状态指数显示水库营养状态由贫营养逐步向中营养转变.营养盐和叶绿素a浓度存在显著空间差异性,河流区高于过渡区和湖泊区,且丰水期高于枯水期,说明水库营养盐主要来自面源污染.年均气温及水温呈下降趋势,降雨量、出入库流量则呈上升趋势,相关分析表明水文气象因子对水质指标影响较大.
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| 关 键 词： | 水库 营养状态 水文气象因子 气候变化 |
| 收稿时间： | 2014/3/31 0:00:00 |
| 修稿时间： | 2014/4/28 0:00:00 |
Water quality trends in recent 10 years and correlation with hydro-meteorological factors in Xin'anjiang Reservoir |
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| SHENG Haiyan,WU Zhixu,LIU Mingliang,HE Jianbo,YU Zuoming,HAN Yicai and ZHANG Yinlong.Water quality trends in recent 10 years and correlation with hydro-meteorological factors in Xin'anjiang Reservoir[J].Acta Scientiae Circumstantiae,2015,35(1):118-127. |
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| Authors: | SHENG Haiyan WU Zhixu LIU Mingliang HE Jianbo YU Zuoming HAN Yicai and ZHANG Yinlong |
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| Institution: | 1. College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037;2. Hangzhou Institute of Environmental Protection Science, Hangzhou 310014;Chun'an Environmental Monitoring Station, Hangzhou 311700;Hangzhou Institute of Environmental Protection Science, Hangzhou 310014;Hangzhou Institute of Environmental Protection Science, Hangzhou 310014;Hangzhou Institute of Environmental Protection Science, Hangzhou 310014;Hangzhou Institute of Environmental Protection Science, Hangzhou 310014;College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037 |
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| Abstract: | Based on the monthly water quality monitoring data and hydro-meteorological data from 2003 to 2012, this study analyzed water quality and nutritional status in Xin'anjiang reservoir and investigated the relationship between water quality change and hydro-meteorological factors. The results showed that the interannual variability of total phosphorus, total nitrogen, BOD and pH value were significant in the past 10 years in Xin'anjiang Reservoir. Chlorophyll a concentration increased in recent 10 years. Comprehensive nutrition state index showed that the reservoir trophic status was improved gradually from oligotrophic to mesotrophic. Nutrient and chlorophyll a was higher in riverine zone than transitional and lacustrine zone and in flooding season than dry season, which indicated that reservoir nutrients came mainly from non-point source pollution. The mean annual air temperature and water temperature decreased, while rainfall, out flow and in flow increased. The correlation analysis showed that hydro-meteorological factors had significant impacts on water quality index. |
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| Keywords: | reservoir nutritional status hydro-meteorological factors climate change |
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