摘要：Wetland ecosystem is an essential ecosystem in the world. Its organic carbon stock and carbon cycle are important basis of global carbon cycle researches and also major contents of global climate change researches. Researches have shown that wetland protection and restoration can promote carbon accumulation and reduce emission of greenhouse gases. This paper discussed influence of carbon stock and carbon balance of wetland ecosystem and emission of greenhouse gases, as well as the relationship between wetland and global climate changes. Finally, it made prospect on researches about carbon cycle of Dongting Lake.
关键词：Wetland;Greenhouse gases;Carbon stock;Carbon balance;Dongting Lake
