乐清湾海洋生态系统服务价值评估

Value assessment of marine ecosystem services in Yueqing Bay

参照千年生态系统评估的分类体系,将乐清湾海洋生态系统服务划分为供给服务、调节服务、文化服务及支持服务4大类.采用市场价格法、成本替代法和成果参照法等评估方法,定量评估乐清湾生态系统的服务价值.研究结果表明,2013年乐清湾生态系统服务总价值为30.53×10~8CNY,区域平均价值为658.4×10~4CNY/(km^2·a).乐清湾生态系统的供给服务价值、调节服务价值和文化服务价值分别占52.1%、6.1%和41.8%.乐清湾生态系统的直接使用价值为28.3×10~8CNY,占总价值的92.7%,间接使用价值为2.22×10~8CNY,占总价值的7.3%,直接使用价值成为乐清湾生态系统提供的主要服务价值.

According to the millennium ecosystem assessment classification system, the marine ecosystem services of Yueqing Bay can be divided into supply services, regulating services, cultural services and support services. The market price method, replace cost method and the results refer method are used to evaluate the economic values of marine ecosystem in Yueqing Bay. As a result, the total value of the marine ecosystem services in Yueqing Bay is estimated about 30. 53 ×10^8 CNY in 2013, with average value of marine ecosystem services per unit sea area of 658.4 ×10^4 CNY/ （ km2 · a）. The value of supply service, regulating service and cultural service in Yueqing Bay is accounted for 52. 1%, 6. 1% and 41.8%, respectively. The direct value is 28.3 ×10^8 CNY, 92.7% of the to- tal value, and the indirect value is 2.22 ×10^8 CNY, 7.3% of the total. The direct use value coritributes the main service by the Yueqing Bay ecosystem.