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What Factors Drove the Global Cropland Expansion Into Highlands?

文献类型：期刊论文

作者Chen, Wanxu3,4,5; Yuan, Yanghaoyue3; Gu, Tianci1,3,6; Ma, Haitao2,4; Zeng, Jie3
刊名EARTHS FUTURE
出版日期2025-07-01
卷号13期号:7页码:e2024EF005337
关键词cropland elevation highlands spectrum terrain gradient analysis spatial regression models global
DOI10.1029/2024EF005337
产权排序2
文献子类Article
英文摘要The escalating demand for agricultural land, along with limited availability in lowland areas, has driven cropland expansion into highlands (CEIH), potentially resulting in land degradation, habitat degradation, and a decline in food production. However, few studies thoroughly investigated the distribution and driving factors of global CEIH, even though a considerable amount of cropland has extended to the highlands over recent decades. To investigate CEIH, we employed spatial statistics, elevation spectrum analysis, and terrain gradient methods to quantify spatio-temporal patterns and elevation changes in global cropland distribution from 1995 to 2020. We then explored the key driving factors of CEIH at different scales using spatial regression models and multiscale geo-weighted regression model. The results revealed that global average cropland elevation increased from 422.782 m in 1995 to 427.321 m in 2020, representing a 4.539 m net increase. CEIH was reflected on both global and continental scales in all continents except South America during the study period. Furthermore, CEIH showed an intense agglomeration pattern. Human activities and cropland reclamation rate emerged as the primary underlying driving factors of CEIH. The encroachment of development on lowland agricultural areas forced CEIH, which was the core of this phenomenon. Vertical cropland expansion was predominantly concentrated in ecologically vulnerable highlands and ecological transition zones. The driving factors of CEIH exhibited spatial and multiscale heterogeneity. These findings provided a scientific basis for formulating targeted cropland conservation policies by highlighting the differences in cropland management performance across various levels of government globally.
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WOS关键词ECOSYSTEM SERVICES VALUE ; CLIMATE-CHANGE ; LAND ; ELEVATION ; CHINA ; SLOPE ; AREA ; IMPACT ; TRANSITION ; RESOLUTION
WOS研究方向Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001526463000001
出版者AMER GEOPHYSICAL UNION
源URL[http://ir.igsnrr.ac.cn/handle/311030/215400]  
专题区域可持续发展分析与模拟院重点实验室_外文论文
通讯作者Gu, Tianci; Ma, Haitao; Zeng, Jie
作者单位1.Beijing Normal Univ, State Key Lab Earth Surface Proc & Hazards Risk Go, Beijing, Peoples R China;
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
3.China Univ Geosci, Sch Geog & Informat Engn, Hubei Key Lab Reg Ecol & Environm Change, Wuhan, Peoples R China;
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China;
5.China Univ Geosci, Silk Rd Inst, Wuhan, Peoples R China;
6.Beijing Normal Univ, Fac Geog Sci, Sch Nat Resources, Beijing, Peoples R China;
推荐引用方式
GB/T 7714		 Chen, Wanxu,Yuan, Yanghaoyue,Gu, Tianci,et al. What Factors Drove the Global Cropland Expansion Into Highlands?[J]. EARTHS FUTURE,2025,13(7):e2024EF005337.
APA Chen, Wanxu,Yuan, Yanghaoyue,Gu, Tianci,Ma, Haitao,&Zeng, Jie.(2025).What Factors Drove the Global Cropland Expansion Into Highlands?.EARTHS FUTURE,13(7),e2024EF005337.
MLA Chen, Wanxu,et al."What Factors Drove the Global Cropland Expansion Into Highlands?".EARTHS FUTURE 13.7(2025):e2024EF005337.

入库方式： OAI收割

来源：地理科学与资源研究所

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