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基于内蒙古音江公路改扩建工程永久占用的各类植被面积,定量地分析了该工程造成的农田、林地和荒草地的植被生物量和生态系统服务价值损失。结果表明,该工程永久占用的植被面积为167.02hm2,其中农田、林地和荒草地分别为84.14hm2、28.10hm2和54.78hm2,工程在3年的施工期内造成的生物量损失共计5 694.61t,其中农田植被生物量损失为877.66t,占15.4%,林地植被生物量损失为3 647.94t,占64.1%,荒草地植被生物量损失为1 169.01t,占20.5%。工程造成的生态系统服务价值损失共计140.87万元,其中农田生态系统服务价值损失为51.45万元,占36.5%,森林生态系统服务价值损失为54.33万元,占38.6%,草地生态系统服务价值损失为35.09万元,占24.9%。
Based on the types of vegetation area permanently occupied by the sounding and expanding project of the Inner Mongolia Yinjiang River Road, the loss of vegetation biomass and ecosystem service value caused by the project on the farmland, woodland and grassland was quantitatively analyzed. The results showed that the permanent vegetation area covered by the project was 167.02hm2, of which 84.14hm2, 28.10hm2 and 54.78hm2 were farmland, woodland and wasteland, respectively. The total biomass loss during the three-year construction period was 5 694.61t, Among them, the biomass loss of farmland vegetation was 877.66t, accounting for 15.4%. The biomass loss of forest vegetation was 3 647.94t, accounting for 64.1%. The biomass loss of wild grassland vegetation was 1 169.01t, accounting for 20.5%. The loss of value of ecosystem services caused by the project totaled 1,408,700 yuan, of which the value loss of farmland ecosystem services was 5,155,500 yuan, accounting for 36.5%; the loss of value of forest ecosystem services was 543,300 yuan, accounting for 38.6%; and the loss of value of grassland ecosystem services 35.09 million, accounting for 24.9%.