碧流河水库富营养化特征分析及影响因素研究  

Analysis of Eutrophication Characteristics and Influencing Factors of Biliuhe Reservoir

作　　者：杨大兴 YANG Daxing(Liaoning Dalian Hydrological Bureau,Dalian 116023,China)

机构地区：[1]辽宁省大连水文局,辽宁大连116023

出　　处：《水资源开发与管理》2024年第5期27-31,共5页Water Resources Development and Management

摘　　要：根据2019—2021年碧流河水库5—10月的水质监测数据,评价水库富营养化现状和变化趋势,通过建立叶绿素a与各项水质指标的多元逐步回归方程,分析水库富营养化的主要影响指标。结果表明,碧流河水库近三年从中营养化变为轻度富营养化,总磷、总氮为主要超标因素,分析发现磷、氮浓度比(P/N)是影响碧流河水库富营养化状态的关键指标。研究成果可为碧流河水库水生态保护和饮用水安全提供科学合理的依据。Based on the water quality monitoring data from May to October of 2019 to 2021,the eutrophication status and trends of the Biliuhe Reservoir are evaluated.By establishing multivariate stepwise regression equations between chlorophyll-a and various water quality indicators,the main influencing factors of eutrophication in the reservoir are analyzed.The results indicate that the Biliuhe Reservoir has changed from mesotrophic to mildly eutrophic over the past three years,with total phosphorus and total nitrogen being the main contributing factors.Analysis reveals that the phosphorus-to-nitrogen ratio(P/N)is a key indicator affecting the eutrophication status of the Biliuhe Reservoir.The research findings can provide a scientific basis for the protection of aquatic ecosystems and the safety of drinking water in the Biliuhe Reservoir.

关 键 词：碧流河水库 富营养化 叶绿素A 影响因素 

分 类 号：TV697[水利工程—水利水电工程]