高速公路服务区人工湿地生态系统价值评价

Constructed Wetland Ecosystem Valuation of Highway Service Area

采用条件评价法、生态价值法、旅游费用法对华中地区某高速公路服务区污水处理人工湿地生态系统进行价值评价,结果表明,该人工湿地生态系统总价值749.46万元,总经济效益342.06万元,环境经济效益显著。且该人工湿地系统的出水水质达到《城镇污水处理厂污染物排放标准(GB 18918-2002)》一级排放A标准。人工湿地系统对高速公路服务区污水的处理具有很好的实用性和推广价值。

The contingent valuation method,ecological value method and travel cost method is introduced to evaluate the values of constructed wetland ecosystem in a given highway service area in central China, The results show that the total value is about RMB 7.49 million and the total economic profit about RMB 3.42 million, the system produce remarkable environmental and economic benefits. And its effluent water quality is up to A standard of the Urban Sewage Treatment Plant Pollutant Discharge Standard(GB 18918-2002). Therefore, the constructed wetland in highway service area are practical and worthy popularizing.