洞庭湖湿地生态功能及其保护对策

洞庭湖区湿地的生态环境对调蓄洪水，调节气候，涵养水源，维护生物多样性具有重要的作用。洞庭湖区现在存在泥沙淤积、湖泊萎缩、水质污染等问题，对这些问题进行了大量实地调查和资料搜集。借助搜集的资料，对洞庭湖湿地生态环境特点进行了分析和研究，指出了存在的问题，提出了保护对策。

Ecological function of Dongting lake wet land and protection measures

Ecological environment in Dongting lake marsh area plays an important role in flood storage and regulation,climatic regulation,water conservation and purification,maintenance of biological diversity.At present,some problems in Dongting lake area exist,such as sediment accumulation,lake shrinkage,water pollution etc..In the light of these problems,large amount of field investigation and data collection work have been carried out.Taking use of collected data,the author analyses the characteristics of ecological environment in Dongting lake marsh area,points out the existnt problems and suggests some protection measures.