干旱区生态环境知识资源中心(Arid): Comprehensive assessment of land degradation in the arid and semiarid area based on the optimal land degradation index model

Arid

DOI	10.1016/j.catena.2023.107563
	Comprehensive assessment of land degradation in the arid and semiarid area based on the optimal land degradation index model
	Shao, Wenyan; Zhang, Zepeng; Guan, Qingyu; Yan, Yong; Zhang, Jun
通讯作者	Guan, QY
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2024
卷号	234
英文摘要	Paying attention to land degradation in drylands is of international significance because it plays a crucial role in global food production. This study developed the optimal land degradation index (OLDI) model for arid and semiarid areas. The model utilized a system that assessed soil condition, climate response, human disturbance, and vegetation growth. It was based on a constrained optimization algorithm. Based on the analysis of the distribution pattern of the OLDI in the Hexi Corridor, this study aims to explore the spatial and temporal characteristics of land degradation and the variations in land sensitivity to degradation across different seasons through trend analysis. Furthermore, the main variables that control the environment and are responsible for land degradation or improvement were revealed through the analysis of driving factors. It was found that the oasis areas in the southern part of the Hexi Corridor experienced land improvement due to the combined influence of human activities and climate change, while the northern region underwent continuous land degradation. However, overall, the majority of the study area's land remained stable. The reduction in precipitation and the increase in wind speed were identified as the primary driving forces behind land degradation. Different vegetation types exhibited distinct responses to environmental control factors, and these responses varied significantly with the changing seasons. Based on the regional variations in land degradation and the observed sensitivity characteristics during different seasons, this study proposes a land management strategy that combines natural recovery with artificial restoration to achieve effective prevention, control, and management of land degradation. This study provided an effective tool for monitoring land degradation in arid and semiarid areas, which is of significant importance for land resource management and the sustainable development of the green economy, not only in the northwest region of China but also in arid and semiarid areas worldwide.
英文关键词	Land degradation Trend analysis Driving force Land management strategy Arid and semiarid
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:001088720700001
WOS关键词	NET PRIMARY PRODUCTION ; SOIL ORGANIC-CARBON ; CLIMATE-CHANGE ; CHINA ; SENSITIVITY ; DROUGHT ; EROSION
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403122
推荐引用方式 GB/T 7714	Shao, Wenyan,Zhang, Zepeng,Guan, Qingyu,et al. Comprehensive assessment of land degradation in the arid and semiarid area based on the optimal land degradation index model[J],2024,234.
APA	Shao, Wenyan,Zhang, Zepeng,Guan, Qingyu,Yan, Yong,&Zhang, Jun.(2024).Comprehensive assessment of land degradation in the arid and semiarid area based on the optimal land degradation index model.CATENA,234.
MLA	Shao, Wenyan,et al."Comprehensive assessment of land degradation in the arid and semiarid area based on the optimal land degradation index model".CATENA 234(2024).