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Land cover changes and landscape dynamics assessment in lower reaches of Tarim River in China

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Abstract

The Tarim River Basin, located in the typical arid region, is one of the key regions of LUCC research in China and plays and important role in maintaining the sustainable development of the western China. In recent years, the ecological environment of the Tarim River Basin has degraded greatly. In the lower reaches, in particular, the riverbed has been dried up for more than 20 years, which accelerated the desertification and has been a great threat to people’s lives. Taking the section of the Tarim River between Qiala Lake and Taitema Lake as a typical region, an investigation on land cover changes was carried out with the support of remote sensing information of 1988 and 2000 respectively. The changes of land cover in this region were obtained: 1) Cropland tended to increase. 2) Urban or Built-up Area in 2000 was 324.4ha more than that in 1988. 3) Waters expanded by 3476.51ha. 4) Woodland and Grassland decreased, while Barren Land increased by 3824.9ha. The total amount of land use/land cover change between 1988 and 2000 is small, which is only 0.355% of the total area. It shows that the developmental pace of the lower reaches of the Tarim River is relative slow. Based on these results, the authors assessed the landscape dynamics of this region and pointed out that the degree of desertification was strengthened and the landscape dominated by sand land was further characterized by salt desert.

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Authors and Affiliations

  1. Department of Resources and Environmental Geosciences/The Center for Land Studies, Peking University, 100871, Beijing, P. R. China

    Wu Xiu-qin & Cai Yun-long

  2. Laboratory for Earth Surface Processes, Ministry of Education, 100871, Beijing, P. R. China

    Wu Xiu-qin & Cai Yun-long

Authors
  1. Wu Xiu-qin
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  2. Cai Yun-long
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Additional information

Foundation item: Under the auspices of Special Science Foundation for Doctoral Subject of Universities, Ministry of Education (No.20020001019)

Biography: WU Xiu-qin(1974-), femal, a native of Fuxin City of Liaoning Province, Ph. D. candidate, specialized in integrated physical geography and LUCC. E-mail: wu_xiuqin@pku.edu.cn

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Wu, Xq., Cai, Yl. Land cover changes and landscape dynamics assessment in lower reaches of Tarim River in China. Chin. Geograph.Sc. 14, 28–33 (2004). https://doi.org/10.1007/s11769-004-0005-3

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  • DOI: https://doi.org/10.1007/s11769-004-0005-3

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