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根据黄土沟壑地带高速公路建设不同时期生态系统特征和生态服务功能的内涵,选择了水土保持、固定CO2、释放O2、滞尘、吸收有害气体、营养元素循环等指标,采用物质量和价值量相结合的评价方法,使用市场价值法、影子工程法、生产成本法、机会成本法研究了郑州西南绕城高速公路不同时期生态系统服务功能经济价值。结果表明:研究区建设前农业生态系统服务功能价值平均每年为424.2万元,建设期间为197.5万元,生态防护后为484.6万元。生态防护前后生态服务价值的差异极为显著,防护后生态服务价值超过原农业生态系统价值。
According to the connotation of ecological system features and ecological service functions in highway construction in loess gully area at different periods, soil and water conservation, CO2 fixation, O2 release, dust removal, harmful gases absorption and nutrient cycle were selected. The combination of quantity and value , The economic value of ecosystem services in different periods around the expressway in the southwest of Zhengzhou in the southwest of China was studied using the method of market value, shadow engineering, production cost and opportunity cost. The results showed that the value of service function of agro-ecosystem before construction in the study area was 4,242,000 yuan per year on average, 1,975,000 yuan during the construction period and 4,846,000 yuan after ecological protection. The difference of ecological service value before and after ecological protection is extremely significant. The value of ecological service after protection exceeds the original value of agricultural ecosystem.