基于固碳服务价值评价的洪湖湿地保护对策

摘要

湿地生态系统具有重要的固碳功能价值,在减缓全球气候变暖中发挥着重要作用.以洪湖湿地国家级自然保护区为研究对象,评估了洪湖湿地植被固碳和土壤碳储存价值,基于洪湖湿地景观类型固碳价值,提出洪湖湿地保护对策.结果表明:2010年洪湖湿地的固碳总价值25878.72万元,其中植被固碳价值1866.85万元,土壤固碳价值24011.87万元.从景观类型看,洪泛平原湿地固碳价值最高,为10262.15元/hm2,其后依次为永久淡水湖泊、湖滨带淡水沼泽和水生养殖塘,减少水生养殖塘的开发利用,及时拆除围网养殖是增加洪湖湿地碳汇功能的重要措施.%As an important carbon sequestration, wetland ecosystem plays an important role in slowing down global climate warming. To evaluate the carbon sequestration value both of the vegetation and soil, we selected the Honghu Lake Wetland National Nature Reserve. Meanwhile, based on the carbon sequestration value of different landscape types from Honghu lake wetland, we proposed a conservation strategy for the Honghu lake wetland. Results showed that the total value of carbon sequestration of Honghu Lake wetland was RMB 258.7872 million in 2010, of which RMB 18.6685 million for plant, and RMB 240.1187 million for soil. From the landscape types, the carbon sequestration value of floodplain wetland per unit area was the largest in all kinds of landscape types, being RMB 10262.15 per hectare, followed by the permanent freshwater lake, permanent freshwater marshes, and aquiculture ponds. In addition, reducing the development and utilization of freshwater lakes for fish-farming by the aquiculture pond, dismantled aquatic-breeding could be an important measure to increase the carbon sink from Honghu Lake wetland.