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《Ecological Science》 2016-06
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Evaluation on service value of coastal wetland ecosystem in Dongzhai harbor mangrove nature reserve

DING Dongjing;LIAO Baowen;GUAN Wei;XIONG Yanmei;LI Mei;CHEN Yujun;Research Institute of Tropical Forestry,CAF;  
In this paper, we used the coastal wetland in Dongzhai harbor as the research object, collected related survey and literature review on field survey basis and combined with the interpretation of Landsat TM remote sensing images of 2010. Then we divided the Dongzhai harbor coastal wetland ecosystem into four ecosystem types which were mangrove swamp, tidal flat, culture ponds and estuarine waters, and the size of them were 1 623.59 hm2, 651.12 hm2, 191.04 hm2, 673.70 hm2, respectively. The values of annual increment in timber volume, the aquaculture and fishing, wind wave dissipation and flood storage, carbon fixation, water purification, air conditioning, pest control, biodiversity, soil siltation, the recreation and tourism, and the education and scientific research were identified as the main service functions of the coastal wetland ecosystems. Both international and domestic mature evaluation theory and methods of wetland ecosystem service values and the latest remote sensing interpretation data were used to evaluate and analyze the values of coastal wetland ecosystem services. The service functions were evaluated using methods such as market value, producing value, shadow projection, the willingness to pay and the price of carbon. Results showed that the total value of the ecosystem service functions of the coastal wetlands in Dongzhaigang was RMB 70.79 million Yuan, of which the carbon fixation, wind wave dissipation and flood storage, and soil siltation were the main ecological services functions, accounting for 32.58%, 22.25%, 15.28% of the total value, respectively. This study provided scientific basis for further improving the public's understanding of the ecological value of mangrove ecosystem.
【Fund】: 科技部公益性行业科研专项(201404305);; GEF海南省湿地保护体系项目;; 国家林业局海南东寨港生态站运行补助项目(2015-LYPT-DW-130)
【CateGory Index】: X36;X826
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