Significant changes in global maize yield sensitivity to vapor pressure deficit during 1983-2010
文献类型：期刊论文
| 作者 | Han, Lubin1,2; Leng, Guoyong2 |
| 刊名 | AGRICULTURAL WATER MANAGEMENT
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 305页码:109107 |
| 关键词 | JE Fernandez VPD Global patterns Dominant factor Crop models Maize yield |
| DOI | 10.1016/j.agwat.2024.109107 |
| 产权排序 | 1 |
| 英文摘要 | Vapor pressure deficit (VPD) is a critical factor in crop growth, and low yields are often associated with high VPD. The adverse effects of VPD on crop yield have been well-documented; however, whether and where yield sensitivity to VPD (SVPD) changes over time across global cropping areas remain elusive. Based on the observed maize yield and VPD at the grid scale, the SVPD calculated using least-squares linear regression for 27.5 % and 25.9 % of the global maize-growing areas, respectively, showed a significant (p < 0.05) decreasing and increasing trend from 1983 to 2010. Spatially, a statistically negative trend in SVPD was found in southeastern Brazil, the central United States, most of Europe, and northeastern China, whereas a positive trend was observed in the eastern United States and northern China. In particular, negative SVPD was alleviated in 23.2 % of global maize areas, primarily in the northeastern United States and northern China, but was aggravated in 18.4 % of maize areas in the middle latitudes of the Northern Hemisphere. In addition, the sign of SVPD was reversed in 34.4 % of the global maize areas, notably in the central United States, northern China, and southern Brazil. The results of the random forest model show that shortwave radiation was identified as the primary co-varying factor that modulated the pattern of changing SVPD in about 26 % of the global maize area, followed by maximum temperature (24.3 %) and minimum relative humidity (21.5 %). By assessing the 14 process-based crop models, we found that their ensemble mean could reproduce the annual patterns of SVPD well but failed to capture its decadal change trends. |
| WOS关键词 | CLIMATE-CHANGE ; CROP ; VARIABILITY ; TRENDS ; HEAT ; RADIATION ; MODELS ; IMPACT ; INDEX ; WATER |
| WOS研究方向 | Agriculture ; Water Resources |
| WOS记录号 | WOS:001341250900001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/208183]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Leng, Guoyong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Lubin,Leng, Guoyong. Significant changes in global maize yield sensitivity to vapor pressure deficit during 1983-2010[J]. AGRICULTURAL WATER MANAGEMENT,2024,305:109107. |
| APA | Han, Lubin,&Leng, Guoyong.(2024).Significant changes in global maize yield sensitivity to vapor pressure deficit during 1983-2010.AGRICULTURAL WATER MANAGEMENT,305,109107. |
| MLA | Han, Lubin,et al."Significant changes in global maize yield sensitivity to vapor pressure deficit during 1983-2010".AGRICULTURAL WATER MANAGEMENT 305(2024):109107. |
入库方式： OAI收割
来源：地理科学与资源研究所
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