洪湖湿地大气调节价值评价研究

Valuation of the Air Regulation Service in Honghu Lake Wetland

以洪湖湿地为研究对象,基于现有研究资料对其大气调节服务价值进行了定量评价。结果表明:洪湖湿地大气调节服务总价值为254.52×106元/a,是过去研究结果的11.6倍,其中湿地植物净固定的温室气体价值(包含甲烷折算的排放价值)为58.50×106元/a,表现为较强的碳汇;湿地释放氧气价值为176.51×106元/a,增湿调温价值为19.51×106元/a。洪湖湿地植被净固定温室气体价值、释放氧气价值和增湿调温价值分别占大气调节服务总价值的22.98%、69.35%和7.7%。

To assess the value of air regulation in Honghu lake wetland, a quantitative study was conducted based on existing literature. Results showed that the total service value of air regulation in Honghu lake wetland was RMB 254.52 million/year, which was 11.6 times of that by previous studies. The Net value of fixed greenhouse gases via wetland plants（including carbon emission value from methane emission conversion into carbon dioxide greenhouse gas effect） was RMB58.50 million/year, the data indicated that the lake wetland was a strong carbon sink. The value of oxygen released by the wetland ecosystem was RMB176.51 million/year, the value of air humidity and temperature regulation was RMB 19.51 million/year. The next value of greenhouse gas fixation by Honghu lake wetland vegetation, the value of released oxygen, and the value of lifting air humidity and temperature regulation, accounted for 22.98%, 69.35%, and 7.7% of the total value of the air regulation services, respectively.