吴起县不同退耕阶段农地资源生态服务价值评估分析

Estimation and analysis of the ecosystem service value of agriculture land resource in Wuqi county during three de-faring periods

以陕西省吴起县为例,对三个不同退耕阶段农地资源生态服务价值进行了评估,分析了各阶段农地资源生态服务价值的变化,探讨了退耕还林(草)工程的实施对农地资源生态服务价值的影响.结果表明:退耕前、退耕初期及退耕中期吴起县农地资源的直接经济产出价值和间接生态服务价值之比分别为:1∶0.84、1∶2.63和1∶3.56.随着退耕工程的不断深入,农地资源总生态服务价值由退耕前的45 402.81万元增加到了退耕初期的81 603.81万元和退耕中期的164 925.46万元,实现了经济效益与生态效益的同步发展.

Taking Wuqi county,Shaanxi province as an example,the ecosystem service value of agricultural land resource during three de-farming periods was estimated;the change of the ecosystem service value was analyzed;and effects of grain for green project on the ecosystem service value of agricultural land resource were also discussed.It indicated that the ratios of the direct economic output value to the indirect ecosystem service value of agricultural land resource in Wuqi country during three different periods w...