摘要
以新疆五彩湾矿区为例,解译遥感影像获取土地利用数据,采用动态度和重心迁移模型分析了土地利用时空变化特征;结合研究区特点修正单位面积生态系统服务价值系数,采用Costanza生态系统服务价值估算模型、贡献率和敏感性分析探究了基于土地利用的生态系统服务价值变化。结果表明:(1)2006-2018年研究区土地利用综合动态度下降0.92%,空间重心均向南部迁移。(2)生态系统服务价值总量减少1729.09万元;建设用地支持服务价值负增长显著。(3)建设用地和草地的贡献率之和超过85%,是生态服务价值变化的主要贡献因子。(4)各地类生态服务价值敏感系数均小于1,建设用地是最敏感因素。现有植被的合理保护和建设用地的有效管理是维持生态服务功能和可持续发展的根本。
This paper interprets remote sensing image to obtain land use data by taking Wucaiwan Mining Area in Xinjiang as an example,and analyzes the spatiotemporal change characteristics of land use by adopting dynamic degree and the change model of gravity center.It modifies the value coefficient of ecosystem services per unit area according to the characteristics of study area and explores changes in the value of ecosystem services based on land use by adopting the value,contribution rate and sensitivity of Costanza ecosystem services.The results show that:(1)The comprehensive dynamic degree of land use decreased by 0.92%and the spatial center of gravity moved to the south in the study area from 2006 to 2018.(2)The total value of ecosystem services decreased by 17.2909 million,the service value of construction land support increased significantly.(3)The total contribution rate of construction land and grassland was more than 85%,which was the main contribution factor of the change of ecological service value.(4)The sensitivity coefficient of similar ecological service value in various regions was less than 1,and the construction land was the most sensitive factor.It is the basis for maintaining ecological service function and sustainable development to reasonably protect the existing vegetation and effectively manage the construction land.
作者
刘芳
于凯
张金玲
郭文雅
尹素琴
LIU Fang;YU Kai;ZHANG Jinling;GUO Wenya;YIN Suqin(School of Public Affairs,Xinjiang University of Finance and Economics,Urumqi Xinjiang 830012,China)
出处
《生态经济》
北大核心
2021年第9期169-175,共7页
Ecological Economy
基金
新疆维吾尔自治区自然科学基金一般项目“基于多层网络模型的信息传播源头定位研究”(2019D01A22)
教育部人文社会科学研究项目“新疆农村少数民族养老保障研究”(15XJJC630001)。
关键词
土地利用变化
重心迁移
生态系统服务价值
贡献率
五彩湾露天煤矿
changes of land use
gravity center transfer
ecosystem services value transition
contribution rates
Wucaiwan open pit coal mine
