干旱区生态环境知识资源中心(Arid): Is land degradation worsening in Northern China? Quantitative evidence and enlightenment from satellites

Arid

DOI	10.1002/ldr.4560
	Is land degradation worsening in Northern China? Quantitative evidence and enlightenment from satellites
	Guo, Zecheng; Xie, Yaowen; Guo, Hui; Zhang, Xueyuan; Zhang, Xihuang; Xi, Guilin; Ma, Changhui; Duan, Hanming
通讯作者	Xie, YW
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2023
卷号	34 期号:6 页码:1662-1680
英文摘要	Land degradation has become an urgent environmental issue globally. The complexity of land degradation hinders its quantification and monitoring, which is needed to realize the sustainable development of land resources. This study constructed a comprehensive index-land degradation status index (LDSI), which integrates in fractional vegetation cover (FVC), net primary productivity (NPP), albedo, and modified temperature vegetation drought index (MTVDI) based on spatial principal component analysis (SPCA). Land degradation was then identified by the dynamics of land degradation status during 2001-2018. This study investigated the spatio-temporal process and driving mechanism of land degradation in Northern China. The result indicates that: (1) LDSI had a better monitoring performance compared with normalized difference vegetation index (NDVI), (2) although some degraded land had been effectively rehabilitated (17.11%), a highly clustered spatial distribution of land degradation status remained, challenging to break, (3) localized land degradation had expanded (1.063%), mainly in semiarid (0.481%), dry sub-humid (0.289%), and humid (0.187%) regions, and (4) differences in climate, environmental backgrounds, and human activities were driven land degradation status and process. This study also assessed the effectiveness of ecological projects implemented by the Chinese government. The in-depth understanding of the change regularity and influencing mechanism in land degradation status and process can provide a scientific basis for formulating ecological policies based on local conditions.
英文关键词	driving effect ecological projects improvement and expansion land degradation Northern China spatio-temporal process
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000919118000001
WOS关键词	GROSS PRIMARY PRODUCTION ; NORTHWEST CHINA ; SOIL-MOISTURE ; LOESS PLATEAU ; YELLOW-RIVER ; INDEX SPACE ; DESERTIFICATION ; VEGETATION ; CLIMATE ; REGION
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397732
推荐引用方式 GB/T 7714	Guo, Zecheng,Xie, Yaowen,Guo, Hui,et al. Is land degradation worsening in Northern China? Quantitative evidence and enlightenment from satellites[J],2023,34(6):1662-1680.
APA	Guo, Zecheng.,Xie, Yaowen.,Guo, Hui.,Zhang, Xueyuan.,Zhang, Xihuang.,...&Duan, Hanming.(2023).Is land degradation worsening in Northern China? Quantitative evidence and enlightenment from satellites.LAND DEGRADATION & DEVELOPMENT,34(6),1662-1680.
MLA	Guo, Zecheng,et al."Is land degradation worsening in Northern China? Quantitative evidence and enlightenment from satellites".LAND DEGRADATION & DEVELOPMENT 34.6(2023):1662-1680.