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题名: Spatial and temporal changes in desertification in the southern region of the Tengger Desert from 1973 to 2009
作者: Guan, QY; Guan, WQ; Yang, J; Zhao, SL; Pan, BT(潘保田); Wang, L; Song, N; Lu, M; Li, FC
收录类别: SCIE
出版日期: 2017-07
刊名: THEORETICAL AND APPLIED CLIMATOLOGY
卷号: 129, 期号:1-2, 页码:487-502
出版者: SPRINGER
出版地: WIEN
英文摘要: The sandy land in the southern region of the Tengger Desert is adjacent to cities and towns, and land desertification poses a threat to the livelihood and production of local residents. To determine dynamic changes in local desertification, five periods (1973, 1987, 1992, 2001, and 2009) of remote sensing data are studied by remote sensing (RS) and geographic information system (GIS). The desert contraction area is primarily centered around three units (Wuwei, Gulang, and Jingtai) and nearby regions of Zhongwei City. The primary desert expansion areas include the west side of Helan Mountain (WSHM), the Central Mountainous Area (CMA), and the eastern and western Zhongwei units far from towns. From 1973 to 2009, the degree of change in the contracting part of the primary desert expansion unit showed an increasing trend; in brief, most of the desert (especially after 2001) has been developing in a direction in which desertification has been gradually controlled. The primary desert expansion areas are less affected by human activity, but they are primarily controlled by natural factors (especially wind and terrain). The desert contraction areas occur around the towns and nearby regions with frequent human activity; desertification is primarily controlled by human factors. With rapid economic development (especially after 2000), the scale of the cultivated area, town, and ecological protection engineering has gradually expanded, and the latter two are primarily built on a previous desert, which is the root cause of the reduction in the desert areas around the towns and the shrinkage toward north of border. Therefore, reasonable and effective human activity in the southern region of the Tengger Desert is playing a crucial role in preventing desertification.
作者部门: [Guan, Qingyu ; Guan, Wenqian ; Yang, Jing ; Zhao, Shilei ; Pan, Baotian ; Wang, Lei ; Song, Na ; Lu, Min ; Li, Fuchun] Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China ; [Guan, Qingyu ; Guan, Wenqian ; Yang, Jing ; Zhao, Shilei ; Pan, Baotian ; Wang, Lei ; Song, Na ; Lu, Min ; Li, Fuchun] Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China
通讯作者: Guan, QY (reprint author), Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China. ; Guan, QY (reprint author), Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China.
学科分类: Meteorology & Atmospheric Sciences
文章类型: Article
所属项目编号: National Natural Science Foundation of China [41171015]
所属项目名称: 国家自然科学基金项目
项目资助者: NSFC
语种: 英语
DOI: 10.1007/s00704-016-1798-6
ISSN号: 0177-798X
WOS记录号: WOS:000403666400037
IR记录号: WOS:000403666400037
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/189877
Appears in Collections:资源环境学院_期刊论文

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作者单位: 12ENVIROM

Recommended Citation:
Guan, QY,Guan, WQ,Yang, J,et al. Spatial and temporal changes in desertification in the southern region of the Tengger Desert from 1973 to 2009[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2017,129(1-2):487-502.
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