湿地公园规划的生态服务功能影响预评价

The iredicted evaluation of the impact of eco-service value of the planning of wetland park

鉴于湿地生态系统的特殊性和敏感性,科学地保护和利用湿地资源、合理地进行湿地利用规划,一直是相关学者所关注的问题;以安徽省北部淮河三汊河湿地为例,从水文调节、大气调节、水体净化、物质生产、文化功能、提供生境和生物多样性价值等方面采用替代成本法、恢复成本法、市场价格法和影子工程法对湿地生态服务价值进行经济核算;分别以生态服务功能价值的理论值(2152.9万元)和现状值(1982.7万元)为参考标准,进行湿地公园规划对湿地生态影响的比较分析,预评价湿地公园规划后的生态服务功能价值为2447.2万元,较理论值和现状值都高;在各项服务功能中,除物质生产功能影响为负值外,其它各项值均为正值,在水文调节、水体净化和文化功能方面变化值较大,因而,从生态服务功能角度考虑,可以认为公园规划具备合理性和可行性。

In view of the particularity and sensitivity of the wetland＇s ecological system, the scientific preservation and utilization of wedand resources and the rational planning of wetlands have been the central focus of the researchers concerned. By taking as a concrete example the Sanchahe Wetland located in Bengbu, Anhui province, this essay gives an economical evaluation of the ecological service function of wetlands in such domains as hydrological regulation, atmospheric regulation, water purification, material production, cultural function, blodiversity. The methods used are ： shadow engineering and market value and so on. In addition, the respective theoretical values（2152.9×10^4 Yuan RMB ） and the practical values（1982.7×10^4 Yuan lIMB） of the Sanchahe Wetland＇s ecological service function are adopted as the criterion so as to expound and prove the functional division of wedand planning and the measures of wetland protection and utilization. The predicted evaluation of the impact of eco-serviee value of the planning of Sanchahe Wetland Park is 2477.2×10^4 Yuan RMB, which is higher than the respective theoretical values and the practical values. Except for the material production, all the Impact of eco-service Value is positive. What＇s more, the increase of value of hydrological regulation, water purification and cultural function is more obvious. So, it is proved that the planning of wetland park is reasonable and feasible in view of eco-service Value.