干旱区生态环境知识资源中心(Arid): Driving factors of desertification in Qaidam Basin, China: An 18-year analysis using the geographic detector model

Arid

DOI	10.1016/j.ecolind.2021.107404
	Driving factors of desertification in Qaidam Basin, China: An 18-year analysis using the geographic detector model
	Han, Jinjun; Wang, Jianping; Chen, Liang; Xiang, Jiangyun; Ling, Zhiyong; Li, Qingkuan; Wang, Erlong
通讯作者	Wang, JP (corresponding author), Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China. ; Wang, JP (corresponding author), Qinghai Prov Key Lab Geol & Environm Salt Lake, Xining 810008, Peoples R China.
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2021
卷号	124
英文摘要	The Qaidam Basin is a cornucopia of salt mineral resources in China, but desertification in the basin has seriously impacted residents' lives and economic development. Comprehensive analyses of the spatial distribution characteristics of desertification and its driving factors will improve understanding of the causes of desertification. To explore these causes and related driving factors, we used the geographical detector model and geographical information system (GIS) techniques to quantify the relative importance and interactions of driving factors, including meteorological, environmental, and human factors. We found that desertification in the southern Kunlun Mountains, eastern Qilian Mountains, and front of the alluvial fan in the northern Kunlun Mountains was low. This was mainly due to the relatively abundant water resources in these areas. Desertification in the central and western Qaidam Basin was high primarily on account of the abnormally high evaporation. The power of determinant value showed that evaporation (0.481) had the strongest impact on desertification, followed by precipitation (0.460), vegetation type (0.360), soil type (0.293), and temperature (0.251). Evaporation has significantly positive effect on the level of desertification, and precipitation has significantly negative effect. Meteorological factors had the greatest impact on desertification, followed by environmental factors, whereas human factors were the least influential. Despite the small population in the basin and limited economic development, the impact of human activities on desertification cannot be ignored. Our results further indicated that the interactions between the driving factors could enhance the evaluation of desertification. This study comprehensively considered three types of impact factor and a total of nine driving factors. It also analyzed the spatial distribution characteristics and driving factors of desertification in the basin, which improved understanding of desertification in such arid and semi-arid regions in northwest China.
英文关键词	Desertification Driving factors Qaidam Basin Geographical detector model Fractional vegetation cover (FVC)
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000624335600001
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349995
作者单位	[Han, Jinjun; Wang, Jianping; Chen, Liang; Xiang, Jiangyun; Ling, Zhiyong; Li, Qingkuan; Wang, Erlong] Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Peoples R China; [Han, Jinjun; Wang, Jianping; Chen, Liang; Xiang, Jiangyun; Ling, Zhiyong; Li, Qingkuan; Wang, Erlong] Qinghai Prov Key Lab Geol & Environm Salt Lake, Xining 810008, Peoples R China; [Han, Jinjun; Xiang, Jiangyun; Wang, Erlong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Han, Jinjun,Wang, Jianping,Chen, Liang,et al. Driving factors of desertification in Qaidam Basin, China: An 18-year analysis using the geographic detector model[J],2021,124.
APA	Han, Jinjun.,Wang, Jianping.,Chen, Liang.,Xiang, Jiangyun.,Ling, Zhiyong.,...&Wang, Erlong.(2021).Driving factors of desertification in Qaidam Basin, China: An 18-year analysis using the geographic detector model.ECOLOGICAL INDICATORS,124.
MLA	Han, Jinjun,et al."Driving factors of desertification in Qaidam Basin, China: An 18-year analysis using the geographic detector model".ECOLOGICAL INDICATORS 124(2021).