Research on the impact of climate change on food security in Africa
文献类型：期刊论文
| 作者 | Liu, Jinglei1,4; Wu, Jiajie1,4; Jiang, Dong1,4; Chen, Shuai1,4; Hao, Mengmeng1,4; Ding, Fangyu1,4; Wu, Genan3; Liang, Hanwei2 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2025-08-25 |
| 卷号 | 15期号:1页码:31251 |
| 关键词 | Climate change Food security Random forest Spatial and temporal evolution Sub-Saharan africa |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-025-14560-5 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Global warming and the rising frequency of extreme climate events pose significant threats to food security. We examine the influence of climate change on food security in Sub-Saharan Africa, with a specific emphasis on four key crops: maize, rice, wheat, and soybeans. We employ a random forest model to estimate spatial and temporal yield trends based on climate variables, land-use patterns, and irrigation ratios. We also studied the differential impacts of climate change on various crop types, taking into account their physiological characteristics and responses to changing environmental conditions. This prediction is performed under three Shared Socioeconomic Pathways (SSP2-4.5, SSP3-7.0, SSP5-8.5)-using five global climate models (GCMs): BCC-CSM2-MR, CanESM5, IPSL-CM6A-LR, GFDL-ESM4 and MPI-ESM1-2-LR. The findings suggest the following: (1) Maize, a C4 crop, is projected to experience a severe decrease in future harvests, especially under the SSP5-8.5 scenario. The worst declines are forecasted in eastern South Africa and Zambia. (2) Both rice and wheat are C3 crops that experience a CO2 fertilization effect, resulting in an increase in yields over time. The SSP5-8.5 scenario primarily focuses on the increase in rice production in West Africa, highlighting this phenomenon. Conversely, significant increases in wheat yield are observed in South Africa and Nigeria. (3) Soybean, a C3 nitrogen-fixing crop, is projected to retain consistent yields overall but with a modest decline in comparison with past norms. The general distribution pattern of soybean yields remains mostly consistent across the SSP scenarios, with the increase in high-yield regions occurring primarily in South Africa. |
| URL标识 | 查看原文 |
| WOS关键词 | CROP YIELD ; MAIZE ; WHEAT ; RICE ; HEAT ; FERTILIZATION ; NITROGEN ; DROUGHT ; STRESS ; MODEL |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001559349300027 |
| 出版者 | NATURE PORTFOLIO |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/216135]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 通讯作者 | Hao, Mengmeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Nanjing Univ Informat Sci & Technol NUIST, Sch Geog Sci, Nanjing 210044, Peoples R China 3.China Acad Space Technol, Inst Spacecraft Applicat Syst Engn, Beijing 100094, Peoples R China; 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Liu, Jinglei,Wu, Jiajie,Jiang, Dong,et al. Research on the impact of climate change on food security in Africa[J]. SCIENTIFIC REPORTS,2025,15(1):31251. |
| APA | Liu, Jinglei.,Wu, Jiajie.,Jiang, Dong.,Chen, Shuai.,Hao, Mengmeng.,...&Liang, Hanwei.(2025).Research on the impact of climate change on food security in Africa.SCIENTIFIC REPORTS,15(1),31251. |
| MLA | Liu, Jinglei,et al."Research on the impact of climate change on food security in Africa".SCIENTIFIC REPORTS 15.1(2025):31251. |
入库方式： OAI收割
来源：地理科学与资源研究所
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