| Analysis of vegetation coverage change and its driving factors in Bohe and Jinghe Oasis, Xinjiang |
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| DOI：10.7606/j.issn.1000-7601.2010.02.50 |
| Key Words: Bohe and Jinghe Watershed oasis vegetation coverage change driving factor |
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| Abstract: |
| Oasis is a basic place to maintain human living, activity and development. It has important significance to utilizing land resources reasonably to study vegetation coverage change on spatio-temporal scale. Based on the remote sensing data, the paper calculated the vegetation coverage and analyzed the characteristics of its historical evolution from 1990 to 2005. The results showed that: (1) The largest proportion of vegetation coverage was vegetation degeneration, moreover, the lowest proportion of vegetation coverage was farmland discarded from 1990 to 2000. (2) The largest proportion of vegetation coverage was vegetation restoration; moreover, the lowest proportion of vegetation coverage was farmland discarded from 1990 to 2000. (3) The overall characteristic of vegetation coverage was vegetation restoration in research region from 1990 to 2005. The main natural in
fluencing factors on oasis vegetation coverage are precipitation and evaporation. The population growth and land and water resources exploitation are the main humanity influencing factors. |