Cropland: Surplus or Deficit? From the Perspective of Meeting People’s Grain Requirement
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 cultiv...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Foods |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-8158/12/5/964 |
| _version_ | 1827752700949823488 |
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| author | Yingnan Niu Caixia Zhang Gaodi Xie Huan Niu |
| author_facet | Yingnan Niu Caixia Zhang Gaodi Xie Huan Niu |
| author_sort | Yingnan Niu |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-11T07:26:00Z |
| format | Article |
| id | doaj.art-e8012cab18ae4051a519f50d769df076 |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-11T07:26:00Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-e8012cab18ae4051a519f50d769df0762023-11-17T07:40:21ZengMDPI AGFoods2304-81582023-02-0112596410.3390/foods12050964Cropland: Surplus or Deficit? From the Perspective of Meeting People’s Grain RequirementYingnan Niu0Caixia Zhang1Gaodi Xie2Huan Niu3Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, A11 Datun Road, Chaoyang District, Beijing 100101, ChinaInstitute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, A11 Datun Road, Chaoyang District, Beijing 100101, ChinaInstitute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, A11 Datun Road, Chaoyang District, Beijing 100101, ChinaCollege of Life Sciences, University of the Chinese Academy of Sciences, 19 A Yuquan Road, No.19, Shijingshan District, Beijing 100049, ChinaThe 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.https://www.mdpi.com/2304-8158/12/5/964cropland pressurefood securityspatiotemporal patternsChina |
| spellingShingle | Yingnan Niu Caixia Zhang Gaodi Xie Huan Niu Cropland: Surplus or Deficit? From the Perspective of Meeting People’s Grain Requirement Foods cropland pressure food security spatiotemporal patterns China |
| title | Cropland: Surplus or Deficit? From the Perspective of Meeting People’s Grain Requirement |
| title_full | Cropland: Surplus or Deficit? From the Perspective of Meeting People’s Grain Requirement |
| title_fullStr | Cropland: Surplus or Deficit? From the Perspective of Meeting People’s Grain Requirement |
| title_full_unstemmed | Cropland: Surplus or Deficit? From the Perspective of Meeting People’s Grain Requirement |
| title_short | Cropland: Surplus or Deficit? From the Perspective of Meeting People’s Grain Requirement |
| title_sort | cropland surplus or deficit from the perspective of meeting people s grain requirement |
| topic | cropland pressure food security spatiotemporal patterns China |
| url | https://www.mdpi.com/2304-8158/12/5/964 |
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