干旱区典型山地-绿洲-荒漠系统中绿洲土地利用/覆盖变化对生态系统服务价值的影响  

Effect of Oasis Land-use and Land-cover Change on Ecosystem Service Values in Typical Mountain-Oasis-Desert System in Arid Region

作　　者：黄青[1] 孙洪波[1] 王让会[1] 张慧芝[1] 

机构地区：[1]中国科学院新疆生态与地理研究所

出　　处：《中国沙漠》2007年第1期76-81,共6页Journal of Desert Research

基　　金：中国科学院知识创新方向性项目(KZCX3-SW-327-04);国家重点基础研究发展规划项目(G199904350902)共同资助

摘　　要：研究土地利用/覆盖变化对区域生态系统服务价值的影响具有重要意义。对处于干旱区典型MODS(Mountain-Oasis-Desert System)系统中的新疆南部且末绿洲1989年Landsat TM影像及2004年的CBERS遥感影像进行处理,分析且末绿洲15a来的土地利用/覆盖变化。在此基础上,采用中国陆地生态系统服务价值的测算方法,评估且末绿洲土地利用/覆盖变化引起的生态系统服务价值的变化。结果表明,1989-2004年,且末绿洲减少的土地面积有林地、戈壁沙地和盐碱地,增加的土地面积有水域、建筑用地和耕地。林地减少了41.73%,耕地增加了58.04%。1989年且末绿洲生态系统服务价值总额为184 349.88万元,2004年为176 970.72万元,15a间,生态系统服务价值损失了7 379.16万元。林地面积的减少是生态系统服务价值减少的主要原因。保护区域生态环境,恢复和提高区域生态系统服务功能是该区域生态环境建设的重要任务。It is significant to study the effect of land-use and land-cover change on regional ecosystem service values. Taking Qiemo oasis, a typical MODS（Mountain-Oasis-Desert System） of arid region as an example, this paper has analyzed the land-use and land-cover change over the past 15 years by interpreting the Landsat TM image in 1989 and CBERS remote sensing image in 2004. Furthermore, the dynamic changes of the ecosystem service value in Qiemo oasis caused by land-use and land-cover change were evaluated by adopting the method of Chinese Continental Ecosystem Service Value Estimation. The result indicated that the land-use types of forest, Gobi desert and salina decreased from 1989 to 2004, whereas, types of farmland, water area and construction land increased. The forest land had a decrease of 41.73 % and farmland had an increase of 58.04 %. The total ecosystem service value in Qiemo oasis had decreased from 184 349.88 × 10^4 yuan（RMB） of year 1989 to 176 970.72 × 10^4 yuan（RMB） of year 2004. The reduction of forest land is mainly responsible for the reduction of the ecosystem service value. So, it is important to protect regional ecological environment and improve the service function of regional ecosystem.

关 键 词：山地-绿洲-荒漠系统 土地利用/覆盖变化 生态系统服务价值 干旱区 且末绿洲 

分 类 号：X171.1[环境科学与工程—环境科学]