干旱区生态环境知识资源中心(Arid): Synthesized remote sensing-based desertification index reveals ecological restoration and its driving forces in the northern sand-prevention belt of China

Arid

DOI	10.1016/j.ecolind.2021.108230
	Synthesized remote sensing-based desertification index reveals ecological restoration and its driving forces in the northern sand-prevention belt of China
	Chen, Ang; Yang, Xiuchun; Guo, Jian; Xing, Xiaoyu; Yang, Dong; Xu, Bin
通讯作者	Yang, XC (corresponding author), Beijing Forestry Univ, Sch Grassland Sci, Beijing 100083, Peoples R China.
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2021
卷号	131
英文摘要	The northern sand-prevention belt (NSPB) is the key area for sand control in China, and the various ecological projects conducted there are important to the Chinese strategy for ecological security. In this paper, a new remote sensing-based desertification index (RSDI) based on principal component analysis was constructed from four aspects of vegetation greenness, surface moisture, soil grain size, and surface radiation. The overall evaluation accuracy of the index was 89.2%, and the kappa coefficient was 0.80, indicating high sensitivity to different degrees of aeolian desertification and suitability for multiscale research. The coefficient of variation, Man-n-Kendall test, Theil-Sen median trend analysis, and residual analysis were used to analyze the spatiotemporal changes and driving forces of the RSDI in the NSPB from 2000 to 2020. The RSDI was used to compare aeolian desertification in different subregions, land use types, and ecological project areas. The important results are as follows: (1) the trend of the average RSDI was downward, but it increased significantly in 2008-2009 and 2013-2014; (2) the RSDI was characterized by relatively high volatility in 28.9% and moderate volatility in 27.1% of the area; (3) the areas with significant restoration (34.1%) greatly exceeded those with significant deterioration (6%), whereas 59.9% of the total area was stable; and (4) within the area with significant resto-ration, 57.4% was primarily affected by human activities, and 42.4% was primarily affected by climate change; however, most of the area with significant deterioration (71.1%) was affected by human activities. In general, the degree of aeolian desertification in the NSPB has decreased in the past 20 years and its ecological quality has continued to recover. However, unreasonable human activities still need to be reduced, and the ecological management of areas under serious threat of desertification needs to be strengthened.
英文关键词	Northern sand-prevention belt (NSPB) Spatial distribution Trend analysis Driving forces Restoration Remote sensing-based desertification index (RSDI)
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:000704550000002
WOS关键词	AEOLIAN DESERTIFICATION ; SPATIOTEMPORAL DYNAMICS ; LAND ; PATTERN ; EVI
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	北京师范大学 ; 北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363001
作者单位	[Chen, Ang; Yang, Xiuchun] Beijing Forestry Univ, Sch Grassland Sci, Beijing 100083, Peoples R China; [Xing, Xiaoyu; Yang, Dong; Xu, Bin] Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Agriinformat Minist Agri, Beijing 100081, Peoples R China; [Guo, Jian] Beijing Normal Univ, Fac Geog Sci, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ang,Yang, Xiuchun,Guo, Jian,et al. Synthesized remote sensing-based desertification index reveals ecological restoration and its driving forces in the northern sand-prevention belt of China[J]. 北京师范大学, 北京林业大学,2021,131.
APA	Chen, Ang,Yang, Xiuchun,Guo, Jian,Xing, Xiaoyu,Yang, Dong,&Xu, Bin.(2021).Synthesized remote sensing-based desertification index reveals ecological restoration and its driving forces in the northern sand-prevention belt of China.ECOLOGICAL INDICATORS,131.
MLA	Chen, Ang,et al."Synthesized remote sensing-based desertification index reveals ecological restoration and its driving forces in the northern sand-prevention belt of China".ECOLOGICAL INDICATORS 131(2021).