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作 者 ：赵翔,崔保山,杨志峰

期 刊 ：生态学报 2005年 25卷 5期 页码：1033~1040

关键词：湖泊；最低生态水位；计算方法；白洋淀；

Keywords:lakes, the lowest ecological water level, calculation methods, Baiyangdian lake,

摘 要 ：由于自然条件的变化、工农业的不合理开发、人口的剧增以及水库和涵闸水利设施的盲目建设等,引发了白洋淀一系列生态环境问题,主要表现为干淀、水污染、生态环境退化、泥沙淤积、湖泊萎缩以及航运中断等。恢复和重建已遭破坏的白洋淀湿地生态系统,并使其至少维持在最低生态水位上是至关重要的问题。在分析白洋淀生态系统功能的基础上,利用水量面积法、最低年平均水位法、年保证率设定法和功能法等4种方法对其最低生态水位进行分析和计算,计算结果分别为7.32 m、7.33m、7.2 8m和7.2 7m。通过合理性分析,认为取它们的平均值即7.30 m作为白洋淀最低生态水位是合理的,符合白洋淀实际情况。

Abstract:Baiyangdian lake is a sluice depression which is naturally-formed by Daqing River. It possesses a number of functions such as flood control, microclimate maintenance water storage and supply, fishery and reed production. In addition, Baiyangdian lake is a perfect place to develop navigation and tourism. It plays an important role in maintaining the ecological balance of this area. However, in the past half century, Baiyangdian lake has been facing a series of eco-environmental problems such as water shortag...

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