The impact of climate change on aeolian desertification in northern China: Assessment using aridity index

doi:10.1016/j.catena.2021.105681

	The impact of climate change on aeolian desertification in northern China: Assessment using aridity index
	Zhang, Caixia 1; Wang, Xunming 2; Li, Jinchang 3; Zhang, Zhengcai 1; Zheng, Yang 2
刊名	CATENA
	2021-12-01
卷号	207 页码:7
关键词	Desertification reversion Precipitation Potential evapotranspiration Drylands Human activity
ISSN号	0341-8162
DOI	10.1016/j.catena.2021.105681
通讯作者	Zhang, Caixia(zhangcaixia@lzb.ac.cn)
英文摘要	At present, there is no consensus regarding the degree to which climate change and human activity affect aeolian desertification in northern China. The purpose of this study is to assess quantitatively the temporal and spatial impacts of climate change on aeolian desertification. The aridity index (AI) was used as an indicator of climate change and its relationship with regional aeolian desertification was analyzed over the period 1975-2010. Three different scenarios were set up on the basis of possible combinations of variations induced by human intervention and climate change. Results indicate that between 1975 and 1990, climatic factors triggered aeolian desertification development across an area of 49,423 km(2), which accounts for 63% of the total area affected by aeolian desertification, whereas climate-related reversion of aeolian desertification occurred across 919 km(2), accounting for 64% of the area that experienced aeolian desertification reversal. Between 1990 and 2000, climate-triggered aeolian desertification covered an area of 58,737 km(2), which was 72% of the total development area, and aeolian desertification reversion related to climatic factors occurred across 7698 km(2), or 28% of the total reversion area. Between 2000 and 2005, climate-triggered aeolian desertification covered an area of 821 km(2), accounting for 19% of the total development area, and aeolian desertification reversion occurred across 45,125 km(2), which was 83% of the total reversion area. Finally, between 2005 and 2010, climate-related aeolian desertification occurred across 2893 km(2), accounting for 36% of the total development area, whereas aeolian desertification reversion occurred across 31,839 km(2), accounting for 70% of the total reversion area. These results indicate that the effect of climate change on aeolian desertification development weakened between 1975 and 2010, whereas its effect on aeolian desertification reversion strengthened. In the future, it is suggested that the aeolian desertification process (development or reversion) should be referred first, before considering the relative effects of climate change and human interventions.
资助项目	National Key Research and Development Program of China[2020YFA0608404] ; National Nature Science Foundation of China[41101006]
WOS关键词	NET PRIMARY PRODUCTIVITY ; INDUCED LAND DEGRADATION ; QUANTITATIVE ASSESSMENT ; EVOLUTION ; DYNAMICS ; REGION ; ROLES
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000703268900099
资助机构	National Key Research and Development Program of China ; National Nature Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/165800]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Caixia
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, 320 West Donggang Rd, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Shanxi Univ, Inst Loess Plateau, Taiyuan 030006, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Caixia,Wang, Xunming,Li, Jinchang,et al. The impact of climate change on aeolian desertification in northern China: Assessment using aridity index[J]. CATENA,2021,207:7.
APA	Zhang, Caixia,Wang, Xunming,Li, Jinchang,Zhang, Zhengcai,&Zheng, Yang.(2021).The impact of climate change on aeolian desertification in northern China: Assessment using aridity index.CATENA,207,7.
MLA	Zhang, Caixia,et al."The impact of climate change on aeolian desertification in northern China: Assessment using aridity index".CATENA 207(2021):7.