湖泊水文情势变化及其生态响应概述

An Overview of Lake Hydrological Changes and Its Ecological Responses

湖泊水文情势(幅度、频率和持续时间)是湖泊生态系统的主要影响因素之一,理解湖泊水位变化的生态响应机制对制定有效的生态水位调控策略具有重要意义。从湖泊水位变化的时间尺度,水位变化对湖泊物理环境的影响,以及水位变化对湖泊大型植物、底栖藻类、大型底栖动物、鱼类和鸟类的影响等方面论述湖泊水位变化的生态后果,为实现湖泊水位的生态调控提供参考。

Lake hydrological regime(amplitude, frequency and duration) is one of the main influencing factors of lake ecosystem. It is of great significance to understand the mechanism of ecological response of water level change to formulate strategiesfor effective water level regulation. This paper discusses the ecological consequences of water level changein the lake, including the time scale of water level change, the impact of water level change on the lake physical environment, and the impact of water level change on large plants, benthic algae, macrobenthos, fish and birds, which provides a basis for ecological regulation of the water level.