基于水文学法入江水道生态流量保障分析  

Analysis of ecological flow guarantee for river channels based on hydrological methods

作　　者：钱龙娇 王洋 QIAN Longjiao;WANG Yang(Institute of Hydraulic Science,Huaihe Water Resources Commission,Ministry of Water Resources,Anhui Province,Hefei 230088,China;Anhui Provincial Key Laboratory of Water Science and Intelligent Water Conservancy,Bengbu 233000,China;Anhui Hydropower Vocational Technical College,Hefei 230088,China)

机构地区：[1]安徽省·水利部淮河水利委员会水利科学研究院,安徽合肥230088 [2]安徽省水科学与智慧水利重点实验室,安徽蚌埠233000 [3]安徽水利水电职业技术学院,安徽合肥230088

出　　处：《安徽农学通报》2024年第16期62-65,共4页Anhui Agricultural Science Bulletin

基　　金：安徽省水科学联合基金(2208085US16);安徽省水科院科技攻关项目(KJGG202202)。

摘　　要：河湖生态流量保障工作是保障流域生态安全的重要举措之一。依据控制断面选取原则以及断面特性,确定以新桥闸为牛屯河流域生态流量保障主要控制断面,以最低生态水位为生态流量保障指标,基于Q_p法、生物空间法、最枯月平均流量法分别计算该流域主要控制断面最低生态水位目标值,并与近40年实测水位进行比较,分析目标的可达性。结果表明,基于Q_p法、生物空间法和最枯月平均流量法计算的控制断面最低生态水位值分别为4.60、4.50和4.43 m,从各方法计算精度、满足程度和严格生态流量保障工作要求等角度考虑,最终确定该流域最低生态水位保障目标为4.60 m,月和旬保证程度分别为99.6%、99.3%。基于此,提出生态流量保障管理措施和预警措施,为该流域生态保护和生态流量保障工作提供参考。The safeguarding of ecological flow in rivers and lakes is an important measure to ensure the ecological security of river basins.Based on the principles of control section selection and the characteristics of the sections,the Xinqiao Sluice was determined as the main control section for the ecological flow protection of the Niutun River basin,with the lowest ecological water level as the indicator for ecological flow protection.The target values for the lowest ecological water level at the main control section of the Niutun River were calculated using the Qp method,biological spatial method,and the lowest average flow method of the driest month,respectively,and compared with the measured water levels over the past 40 years to analyze the feasibility of the targets.The results showed that the calculated values for the lowest ecological water level at the control section using the Qp method,biological spatial method,and the lowest average flow method of the driest month were 4.60,4.50,and 4.43 m,respectively.Considering the calculation accuracy,satisfaction level,and the strict requirements for ecological flow protection,the final target for the lowest ecological water level in the basin was set at 4.60 m,with the monthly and ten-day guarantee levels reaching 99.6%and 99.3%,respectively.Based on this,management measures and early warning measures for ecological flow protection were proposed to provide a reference for ecological protection and ecological flow safeguarding in the basin.

关 键 词：生态安全 生态流量 最低生态水位 生态保护 

分 类 号：S274.1[农业科学—农业水土工程]