汈汊湖生态水位确定方法研究

湖泊的适宜生态水位是进行湖泊规划设计、湖泊保护范围确定等工作的重要依据。本文以湖北省汈汊湖为例,通过选取频率分析法、湖泊形态分析法、生物空间法、最低水位法、水环境模拟法5种不同的生态水位确定方法,开展了湖泊生态水位确定方法的比较研究。研究结果表明,湖泊生态水位计算结果与每种方法的理论和假设密切相关,5种方法计算的汈汊湖生态水位结果介于22.86~24.20m之间。

Study on determination method of suitable ecological water level in Take Diaocha lake

The suitable ecological water level of the lake is an important basis for the planning and design of the lake and the determination of the protection scope of the lake. Taking Hubei Diaocha Lake an example, this paper carried out a comparative study on the determination methods of lake ecological water level by selecting five different ecological water level determination methods, including frequency analysis method, lake morphology analysis method, biological space method, lowest water level method and water environment simulation method. The results show that the calculation results of lake ecological water level are closely related to the theories and assumptions of each method. The calculation results of diaocha lake ecological water level by the five methods range from 22.86 m to 24.20 m.