气候变化领域集成服务门户(CCPortal): Spatiotemporal changes of land desertification sensitivity in northwest China from 2000 to 2017

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DOI	10.1007/s11442-021-1832-1
	Spatiotemporal changes of land desertification sensitivity in northwest China from 2000 to 2017
	Wei Wei; Guo Zecheng; Shi Peiji; Zhou Liang; Wang Xufeng; Li Zhenya; Pang Sufei; Xie Binbin
通讯作者	Guo, ZC (通讯作者)，Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1009-637X
EISSN	1861-9568
起始页码	46
结束页码	68
卷号	31 期号:1
英文摘要	Sensitivity assessment is useful for monitoring land desertification. Research into how to prevent and control desertification is also important. In the arid region of northwest China, desertification is becoming worse and is a serious problem that affects local sustainable development. Based on remote-sensing and geographic information system technology, this study establishes a soil-terrain-hydrology-climate-vegetation desertification sensitivity comprehensive evaluation system to reflect the spatiotemporal changes of land desertification, and proposes a spatial distance model to calculate a desertification sensitivity index. The spatiotemporal change characteristics of land desertification sensitivity in northwest China are quantitatively assessed from 2000 to 2017. Moreover, the main driving factors are analyzed using the geographical detector method. The results show the following. (1) Terrain, soil, climate, vegetation and hydrology affect and restrict each other, and constitute the background conditions of the distributions and changes of sensitivity to desertification in northwest China. (2) Desertification sensitivity generally displays a low distribution characteristic on the periphery of the area and a high one in the interior. The low-sensitivity regions are mainly in the five major mountain ranges (Altai Mountains, Tianshan Mountains, Kunlun Mountains, Altun Mountains and Qilian Mountains), while the high-sensitivity regions are mainly in regions such as the Junggar Basin, the Tarim Basin and the Inner Mongolia Plateau, as well as the Taklimakan Desert, Badain Jaran Desert and Tengger Desert. The spatial distribution of desertification sensitivity is obviously regional, and the high- and low-sensitivity regions have clear boundaries and a concentrated distribution. (3) With regard to spatiotemporal evolution, changes in desertification sensitivity since 2000 have been predominantly stable, and the overall sensitivity has displayed a slowly decreasing trend, indicating that potential desertification regions are decreasing annually and that some achievements have been made in the control of regional desertification. (4) Soil and climate play a direct role in the driving factors of desertification in northwest China, and these have been found to be the most important influential factors. Vegetation is the most active and basic factor in changing the sensitivity. In addition, topography and hydrology play a role in restricting desertification changes. Socio-economic factors are the most rapid factors affecting regional desertification sensitivity, and their impacts tend to be gradually increasing. In general, desertification has been effectively controlled in northwest China, and positive results have been achieved in such control. However, against the backdrop of intensified global climate change, increasingly prominent human activities and new normals of socio-economic development, the monitoring, assessment and control of desertification in China still have a long way to go.
关键词	EVOLUTION INDEX RISK
英文关键词	desertification sensitivity; spatiotemporal change; geographical detector; GIS; northwest China
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000607867900002
来源期刊	JOURNAL OF GEOGRAPHICAL SCIENCES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254967
作者单位	[Wei Wei; Shi Peiji; Li Zhenya; Pang Sufei] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Guo Zecheng] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China; [Zhou Liang] Lanzhou Jiaotong Univ, Fac Geomat, Lanzhou 730070, Peoples R China; [Zhou Liang] Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; [Wang Xufeng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Gansu Qilian Mt Ecol Res Ctr, Lanzhou 730000, Peoples R China; [Xie Binbin] Lanzhou City Univ, Sch Urban Econ & Tourism Culture, Lanzhou 730070, Peoples R China
推荐引用方式 GB/T 7714	Wei Wei,Guo Zecheng,Shi Peiji,et al. Spatiotemporal changes of land desertification sensitivity in northwest China from 2000 to 2017[J]. 中国科学院西北生态环境资源研究院,2021,31(1).
APA	Wei Wei.,Guo Zecheng.,Shi Peiji.,Zhou Liang.,Wang Xufeng.,...&Xie Binbin.(2021).Spatiotemporal changes of land desertification sensitivity in northwest China from 2000 to 2017.JOURNAL OF GEOGRAPHICAL SCIENCES,31(1).
MLA	Wei Wei,et al."Spatiotemporal changes of land desertification sensitivity in northwest China from 2000 to 2017".JOURNAL OF GEOGRAPHICAL SCIENCES 31.1(2021).