中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Quantitative Analysis and Nonlinear Response of Vegetation Dynamic to Driving Factors in Arid and Semi-Arid Regions of China

文献类型:期刊论文

作者Liu, Shihao2,3; Yang, Dazhi2,6; Zhang, Xuyang2,5; Liu, Fangtian1,4
刊名LAND
出版日期2025-08-01
卷号14期号:8页码:1575
关键词kNDVI spatiotemporal variation of vegetation driving factors nonlinear trend arid and semi-arid regions
DOI10.3390/land14081575
产权排序2
文献子类Article
英文摘要Vegetation dynamics are complexly influenced by multiple factors such as climate, human activities, and topography. In recent years, the frequency, intensity, and diversity of human activities have increased, placing substantial pressure on the growth of vegetation. Arid and semi-arid regions are particularly sensitive to climate change, and climate change and large-scale ecological restoration have led to significant changes in the dynamic of dryland vegetation. However, few studies have explored the nonlinear relationships between these factors and vegetation dynamic. In this study, we integrated trend analysis (using the Mann-Kendall test and Theil-Sen estimation) and machine learning algorithms (XGBoost-SHAP model) based on long time-series remote sensing data from 2001 to 2020 to quantify the nonlinear response patterns and threshold effects of bioclimatic variables, topographic features, soil attributes, and anthropogenic factors on vegetation dynamic. The results revealed the following key findings: (1) The kNDVI in the study area showed an overall significant increasing trend (p < 0.01) during the observation period, of which 26.7% of the area showed a significant increase. (2) The water content index (Bio 23, 19.6%), the change in land use (15.2%), multi-year average precipitation (pre, 15.0%), population density (13.2%), and rainfall seasonality (Bio 15, 10.9%) were the key factors driving the dynamic change of vegetation, with the combined contribution of natural factors amounting to 64.3%. (3) Among the topographic factors, altitude had a more significant effect on vegetation dynamics, with higher altitude regions less likely to experience vegetation greening. Both natural and anthropogenic factors exhibited nonlinear responses and interactive effects, contributing to the observed dynamic trends. This study provides valuable insights into the driving mechanisms behind the condition of vegetation in arid and semi-arid regions of China and, by extension, in other arid regions globally.
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WOS关键词CLIMATE-CHANGE ; IMPACTS ; TREND ; NDVI
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001560239400001
出版者MDPI
源URL[http://ir.igsnrr.ac.cn/handle/311030/216169]  
专题陆地表层格局与模拟院重点实验室_外文论文
通讯作者Yang, Dazhi
作者单位1.Hebei Univ Econ & Business, Sch Publ Adm, Shijiazhuang 050061, Peoples R China;
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China;
3.Shandong Agr Univ, Coll Resources & Environm, Tai An 271018, Peoples R China;
4.Hebei Collaborat Innovat Ctr Urban Rural Integrate, Shijiazhuang 050061, Peoples R China
5.Anhui Univ Sci & Technol, Sch Earth & Environm, Huainan 232001, Peoples R China;
6.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China;
推荐引用方式
GB/T 7714
Liu, Shihao,Yang, Dazhi,Zhang, Xuyang,et al. Quantitative Analysis and Nonlinear Response of Vegetation Dynamic to Driving Factors in Arid and Semi-Arid Regions of China[J]. LAND,2025,14(8):1575.
APA Liu, Shihao,Yang, Dazhi,Zhang, Xuyang,&Liu, Fangtian.(2025).Quantitative Analysis and Nonlinear Response of Vegetation Dynamic to Driving Factors in Arid and Semi-Arid Regions of China.LAND,14(8),1575.
MLA Liu, Shihao,et al."Quantitative Analysis and Nonlinear Response of Vegetation Dynamic to Driving Factors in Arid and Semi-Arid Regions of China".LAND 14.8(2025):1575.

入库方式: OAI收割

来源:地理科学与资源研究所

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