| 生物与生态 |
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| Effect of Oasis Land-use and Land-cover Change on Ecosystem Service Values in Typical Mountain-Oasis-Desert System in Arid Region |
| HUANG Qing1,2, SUN Hong-bo1,2,WANG Rang-hui1,ZHANG Hui-zhi1 |
| 1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; 2.Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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Abstract 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 184 349.88×104 yuan(RMB) of year 1989 to 176 970.72×104 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.
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Received: 15 August 2005
Published: 20 January 2007
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2007, Vol. 27 
