【摘要】 通过收集2007年和2017年绛县的DEM数据和遥感数据,经遥感解译和GIS重分类,将该区域高程划分为6个等级、地形坡度划分为5个等级、土地利用类型划分为7类,计算和探讨了2007—2017年间绛县各土地利用类型的生态系统服务价值和单项生态系统服务价值在地形梯度上的变化情况,并计算了生态系统服务价值动态度和敏感性指数。结果表明:2007—2017年间,绛县土地利用面积增加了9 596 hm~2,生态系统服务总价值增加了14 762.80万元;生态系统服务价值增加量最大的为林地,生态系统服务价值减少量最大的为耕地;林地在900～1 200 m地形梯度上有最大的生态系统服务价值增加量12 620.66万元,在13°～20°地形坡度梯度上有最大的生态系统服务价值增加量9 946.53万元;在各单项生态系统服务价值类型方面,气体调节生态系统服务价值增加量最大,废物处理生态系统服务价值减少量最大;建设用地的生态系统服务价值动态度和敏感性指数最大,林地对绛县的生态系统服务价值贡献最多。更多还原

【Abstract】 This paper collects DEM data and remote sensing data of Jiang County in 2007 and 2017.After remote sensing interpretation and GIS re-classification,the paper divides the elevation of the region into six grades,the slope into five grades,and the land type into seven categories,and then calculates and discusses the changes of ecosystem service value and individual ecosystem service value in terrain gradient of land use types in Jiang County from 2007 to 2017 and calculates the dynamic degree of ecosystem service value and sensitivity index.The results show that the land use area of Jiang County increased by 9 596 hm~2 and the total value of ecosystem services increased by 1 476.28 million yuan from 2007 to 2017;the increment of ecosystem service value was forest land,while the decrease of ecosystem service value was farmland;the increment of ecosystem service value was 1 262.066 million yuan on the 900～1 200 m gradient,and the maximum ecosystem on the 13°～20° degree gradient;the increment of total service value was 99.465 million yuan;the increment of gas regulation value was the largest,and the decrease of waste disposal value was the largest;the dynamic of ecosystem service value and sensitive index of construction land was the largest,and forest land contributed the most to ecosystem service value of Jiang County.更多还原