Global irrigation cooling benefits for maize yield: The spatial-temporal patterns and possible mechanisms
文献类型：期刊论文
| 作者 | Han, Lubin1,2; Leng, Guoyong2 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2025-07-01 |
| 卷号 | 655页码:132961 |
| 关键词 | Global Irrigation cooling benefit Maize yield Temperature Uncertainty |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2025.132961 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Irrigation benefits crop yields directly by providing additional water and indirectly by reducing extreme high temperature stress (i.e., irrigation cooling benefit). To date, how irrigation cooling benefit is spatial-temporally distributed remains elusive at the global scale. Here, by synthesizing various datasets and data-driven models, we quantify global irrigation cooling benefits and explore the underlying mechanisms behind its spatial-temporal patterns. Results show that irrigation has exerted a cooling benefit for maize yield (relative to its total benefit) of 7.76%, 9.43%, 6.92%, 5.0% and 2.82% for the globe, Northeastern China, North China Plain, Southern Great Plain and Northern India, respectively. A greater global-scale benefit of 8.62% is estimated for the year 2010 which is mainly achieved by reducing maize yield sensitivity to cooling rather than cooling magnitude. Maximum air temperature and irrigation properties are found to modulate the spatial pattern of irrigation cooling benefit for maize yield, while regional characteristics (e.g., the coefficient of variation and mean of irrigation yield increase) influence its temporal differences. Additional analysis shows that the grid resolution and the number of maize patches are the main uncertainty sources of the estimated irrigation cooling benefits, suggesting the importance to develop more finer and long-term observational yield datasets under rainfed and irrigated conditions. |
| URL标识 | 查看原文 |
| WOS关键词 | CLIMATE ; HEAT ; WATER ; CARBON |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001435017300001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/213359]  |
| 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, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Han, Lubin,Leng, Guoyong. Global irrigation cooling benefits for maize yield: The spatial-temporal patterns and possible mechanisms[J]. JOURNAL OF HYDROLOGY,2025,655:132961. |
| APA | Han, Lubin,&Leng, Guoyong.(2025).Global irrigation cooling benefits for maize yield: The spatial-temporal patterns and possible mechanisms.JOURNAL OF HYDROLOGY,655,132961. |
| MLA | Han, Lubin,et al."Global irrigation cooling benefits for maize yield: The spatial-temporal patterns and possible mechanisms".JOURNAL OF HYDROLOGY 655(2025):132961. |
入库方式： OAI收割
来源：地理科学与资源研究所
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