Spatiotemporal Changes in the Geographic Imbalances between Crop Production and Farmland-Water Resources in China
文献类型：期刊论文
| 作者 | Li, Dajing1,2; Zhang, Hongqi1; Xu, Erqi1 |
| 刊名 | AGRONOMY-BASEL
 |
| 出版日期 | 2022-05-01 |
| 卷号 | 12期号:5页码:19 |
| 关键词 | geographic imbalance crop production resource pressure water resources China |
| DOI | 10.3390/agronomy12051111 |
| 通讯作者 | Xu, Erqi(xueq@igsnrr.ac.cn) |
| 英文摘要 | Agricultural production is constrained by farmland and water resources, especially in China with limited per capita resources. Understanding of the geographic changes between national crop production and resource availability with the spatial shift of crop production has been limited in recent decades. To solve this issue, we quantified the changes in geographic relationships between crop production and farmland-water resources in China from 1990 to 2015 by a spatial imbalance measurement model. Results found a clear spatial concentration trend of crop production in China, which increased the pressure on the limited farmland and water resources in the main production areas. The geographic imbalances between the total production of crops and farmland resources (Sigma SMI_PF) alleviated slightly, whereas that of water resources (Sigma SMI_PW) increased by 9.12%. The rice production moved toward the north of the country with less water but abundant farmland resources, which led to a decrease of 1.34% in Sigma SMI_PF and an increase of 14.20% in Sigma SMI_PW. The shift of wheat production to the south was conducive to alleviating the pressure on water resources, but the production concentration still increased the demand for farmland and water resources, resulting in an increase in Sigma SMI_PF and Sigma SMI_PW by 39.96% and 10.01%, respectively. Of the five crops, adjustments to the spatial distribution of corn production had the most significant effect on reducing pressure on farmland and water resources and Sigma SMI_PF and Sigma SMI_PW decreased by 11.23% and 1.43%, respectively. Our results provided a reference for adjustments in crop production distribution and for policy formulation to sustainably utilize farmland and water resources. |
| WOS关键词 | FOOD SECURITY ; GRAIN PRODUCTION ; CLIMATE-CHANGE ; VIRTUAL LAND ; IMPACTS ; WHEAT ; RICE ; FLOW ; SUSTAINABILITY ; URBANIZATION |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0603] ; National Natural Science Foundations of China[41601095] ; Youth Innovation Promotion Association CAS[2021052] |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000801925400001 |
| 出版者 | MDPI |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundations of China ; Youth Innovation Promotion Association CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/178623]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Erqi |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Dajing,Zhang, Hongqi,Xu, Erqi. Spatiotemporal Changes in the Geographic Imbalances between Crop Production and Farmland-Water Resources in China[J]. AGRONOMY-BASEL,2022,12(5):19. |
| APA | Li, Dajing,Zhang, Hongqi,&Xu, Erqi.(2022).Spatiotemporal Changes in the Geographic Imbalances between Crop Production and Farmland-Water Resources in China.AGRONOMY-BASEL,12(5),19. |
| MLA | Li, Dajing,et al."Spatiotemporal Changes in the Geographic Imbalances between Crop Production and Farmland-Water Resources in China".AGRONOMY-BASEL 12.5(2022):19. |
入库方式： OAI收割
来源：地理科学与资源研究所
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