Cropland: Surplus or Deficit? From the Perspective of Meeting People's Grain Requirement
文献类型：期刊论文
| 作者 | Niu, Yingnan3; Zhang, Caixia; Xie, Gaodi; Niu, Huan2 |
| 刊名 | FOODS
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 12期号:5 |
| ISSN号 | 2304-8158 |
| 关键词 | cropland pressure food security spatiotemporal patterns China |
| DOI | 10.3390/foods12050964 |
| 文献子类 | Article |
| 英文摘要 | The quantity and quality of cropland plays an important role in ensuring food security. In order to explore spatiotemporal patterns of the extent to which cropland satisfies people's grain need, we integrate multi-source heterogeneous data to investigate in which era, and in which region, the cultivated land can meet people's food demands. It turns out that in the past 30 years, with the exception of the late 1980s, the amount of cropland could satisfy people's grain needs at the nation scale. However, more than 10 provinces (municipality/autonomous region), mainly located in western China and southeast coastal areas, have been unable to meet the grain needs of local people. We projected the guarantee rate to the late 2020s. Our study concludes that the guarantee rate of cropland is estimated to be higher than 150% in China. Compared to 2019, except Beijing, Tianjin, Liaoning, Jilin, Ningxia, as well as Heilongjiang in the Sustainability scenario, and Shanghai in the Sustainability and the Equality scenarios, the guarantee rate of cultivated land will increase in every province (municipality/autonomous region) in 2030. This study has reference value for the study of China's cultivated land protection system, as well as important significance for China's sustainable development. |
| WOS关键词 | CHINA FOOD SECURITY ; PATTERNS ; QUALITY ; TRENDS |
| WOS研究方向 | Food Science & Technology |
| 出版者 | MDPI |
| WOS记录号 | WOS:000946916800001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/190255]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Life Sci, 19 Yuquan Rd 19, Beijing 100049, Peoples R China 2.Peking Univ, Shenzhen Grad Sch, Sch Urban Planning & Design, Shenzhen 518055, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, A11 Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Niu, Yingnan,Zhang, Caixia,Xie, Gaodi,et al. Cropland: Surplus or Deficit? From the Perspective of Meeting People's Grain Requirement[J]. FOODS,2023,12(5). |
| APA | Niu, Yingnan,Zhang, Caixia,Xie, Gaodi,&Niu, Huan.(2023).Cropland: Surplus or Deficit? From the Perspective of Meeting People's Grain Requirement.FOODS,12(5). |
| MLA | Niu, Yingnan,et al."Cropland: Surplus or Deficit? From the Perspective of Meeting People's Grain Requirement".FOODS 12.5(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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