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Analysis on Eutrophication and Water Quality of Longjing Lake in Chongqing Expo Garden
Author(s): 
Pages: 59-64
Year: Issue:  3
Journal: Environmental Science and Management

Keyword:  龙景湖富营养化水质相关关系;
Abstract: 龙景湖位于重庆市北部新区园博园内,以自然降水为补给水源,在构建园博园景观、调节湖区小气候、改善周围生态环境、提供居民休闲等方面具有重要功能.为了及时掌握龙景湖水质变化情况,对水体中TN、TP、CODMn、Chla含量及水体透明度等进行监测分析,运用综合营养状态指数法对龙景湖营养状态进行评价.研究表明:龙景湖水体中TN、TP含量超标污染严重,Chla含量亦较高,其他指标处于正常景观用水范围内,水质总体处于轻度-中度富营养化范围.秋亭桥是全湖水质最差的地方.相关分析表明综合营养状态指数与透明度呈极显著负相关关系,与pH、溶解氧、CODMn、BOD5、Chla呈极显著正相关关系.开展监测以来,龙景湖水质明显恶化,治理工作刻不容缓,应从入湖污染源控制、湖水污染治理及管理工作三方面着手,采取综合治理措施.
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