内蒙古音江公路改扩建工程的植被生物量及生态系统服务价值损失

Loss of Vegetation Biomass and Ecosystem Service Values Caused by Reconstruction and Expansion of Yin-Jiang Highway in Inner Mongolia

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%。

In this paper,based on the different vegetation area occupied by the reconstruction of Yin-Jiang Highway,the vegetation biomass and ecosystem service value losses of cropland,forest land,and wasted land are quantitatively analyzed.The results show that the vegetation area occupied by the reconstruction is 167.02 hm2,of which cropland,forest land and wasted land accounted for 84.14 hm2,28.10 hm2 and 54.78 hm2,respectively.During the 3 year construction period,the total vegetation biomass loss would be 5694.61t,of which 877.66 t is cropland vegetation loss（15.4%）,3 647.94 t is forest land vegetation loss（64.1%）,and 1169.01 t is wasted land vegetation loss（20.5%）.The total ecosystem service value loss would be 1408.7 thousand yuan,of which 514.5 thousand yuan is cropland ecosystem service loss（36.5%）,543.3 thousand yuan is forest land ecosystem service loss（38.6%）,and 350.9 thousand yuan is wasted land ecosystem service loss（24.9%）.