| 论文题目： | Natural and semi-natural land dynamics under water resource change from 1990 to 2015 in the Tarim Basin, China |
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| 第一作者： | Liu Fang, Yu Zhuxiao, Xu Erqi, Li Dajing etc. |
| 联系作者： | |
| 发表年度： | 2021 |
| 摘 要： | |
| 英文摘要： | The Tarim Basin is a typical arid area and has the world's most severe desertification of natural and semi-natural land due to limited water resources. However, knowledge about the impacts of changes in water resources on the spatio-temporal dynamics of natural and semi-natural land is still limited. We analyzed the spatio-temporal changes in natural and semi-natural land and the associations with desertification in the Tarim Basin during the period 1990-2015. We then investigated the changes in water resources and the consequent impacts on the spatio-temporal changes of natural and semi-natural land by integrating Gravity Recovery and Climate Experiment territorial water storage data and field observations. The results showed that a total area of 10.32 x 10(3) km(2) of natural and semi-natural land was converted to desert during the period 1990-2015. Desert vegetation type and saline type were the natural and semi-natural land types most sensitive to conversion to desert. The area of natural and semi-natural land decreased by 0.83% every year, and the proportion of desertified land was 34.79% on average during the period 2000-2010; this is less than for the period 1990-2000 (1.14% yr(-1) and 52.01%) due to increased availability of water resources from the water conveyance program. However, the rate of decrease of natural and semi-natural land area (0.93% yr(-1)) and the proportion of desertified land (58.88%) rose again during the period 2010-2015 due to the rapid decrease in water resources. During the period 2000-2015, the rate of loss of natural and semi-natural land area (7.89%) in the region with decreased water resources was about twice that in the region with increased water resources (3.88%), highlighting the critical role of water resources in maintaining natural and semi-natural land and slowing desertification. |
| 刊物名称： | ENVIRONMENTAL RESEARCH LETTERS |
| 全文链接： | |
| 论文类别： | SCI |
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