| Development of land desertification in Bashang area in the past 20 years |
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| 作者姓名： | CHEN Zhi-qing ZHU Zhen-da |
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| 作者单位： | 1. Institute of Geographic Sciences and Natural Resources Research，CAS，Beijing 100101，China; 2. Institute of Cold and Arid Regions and Environmental Engineering，CAS，Lanzhou 730000，China |
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| 基金项目： | National Natural Science Foundation of China，No. 49894170 |
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| 摘 要： | 1 Physiographic characteristics of Bashang area In broad sense, Bashang area refers to the entire Zhangbei, Kangbao and Guyuan counties, northern part of Shangyi, northern parts of Fengning and Weichang counties of Chengde Prefecture, most part of Duolun county, entire Taipusi Banner (Taipusi County), southern part of Zhenglan and Zhengxiangbai banners (counties) and northeast of Huade in Inner Mongolia, altogether 12 counties or banners covering an area of more than 42,000 km2 with a …
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| 收稿时间： | 17 February 2001 |
| 修稿时间： | 20 May 2001 |
Development of land desertification in Bashang area in the past 20 years |
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| CHEN Zhi-qing,ZHU Zhen-da.Development of land desertification in Bashang area in the past 20 years[J].Journal of Geographical Sciences,2001,11(4):433-437. |
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| Authors: | Chen Zhi-qing Zhu Zhen-da |
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| Institution: | 1. Institute of Geographic Sciences and Natural Resources Research, CAS,
2. Institute of Cold and Arid Regions and Environmental Engineering, CAS, |
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| Abstract: | Natural conditions in Bashang area are characterized by zonal transitions which are liable to be impacted by natural disasters and intensified human activities. The extremely fragile eco-environment is also liable to have desertification formed and developed. In the 18 years from 1978 to 1996, the desertified land area of Bashang within the scope of the map nearly doubled, a total increase of 2199.11 km2, averaging an increase of 122.17 km2 per year. Moreover, the seriously desertified area increases rapidly. Land desertification in Bashang is the combined result of natural factors and irrational human economic activities. Cultivated land expansion, population growth, and overgrazing aggrevate desertification development. |
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| Keywords: | Bashang area desertification impact of human activities |
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