兰州大学机构库
Comprehensive assessment of land degradation in the arid and semiarid area based on the optimal land degradation index model
Shao, Wenyan; Zhang, Zepeng; Guan, QY(管清玉); Yan, Yong; Zhang, J(张军)
2024-01
Online publication date2023-09
Source PublicationCATENA   Impact Factor & Quartile
ISSN0341-8162 ; 1872-6887
EISSN1872-6887
Volume234
page numbers14
AbstractPaying 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.
KeywordLand degradation Trend analysis Driving force Land management strategy Arid and semiarid
PublisherELSEVIER
DOI10.1016/j.catena.2023.107563
Indexed BySCIE
Language英语
WOS Research AreaGeology ; Agriculture ; Water Resources
WOS SubjectGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS IDWOS:001088720700001
Original Document TypeArticle
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569662
Collection兰州大学
资源环境学院
Corresponding AuthorGuan, Qingyu
Affiliation
Lanzhou Univ, Coll Earth & Environm Sci, Gansu Key Lab Environm Pollut Predict & Control, Lanzhou 730000, Peoples R China
First Author AffilicationCollege of Earth Environmental Sciences
Corresponding Author AffilicationCollege of Earth Environmental Sciences
Recommended Citation
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]. CATENA,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).
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