Green or grain? Impact of green space expansion on grain production in Chinese cities and its implications for national urban greening schemes
文献类型：期刊论文
| 作者 | Dong, Yulin2; Kuang, Wenhui2; Ren, Zhibin1; Dou, Yinyin2; Deng, Xiangzheng2 |
| 刊名 | LANDSCAPE ECOLOGY
 |
| 出版日期 | 2024-06-17 |
| 卷号 | 39期号:7页码:117 |
| 关键词 | Urbanization Urban green space Cropland Grain production Landscape sustainability |
| DOI | 10.1007/s10980-024-01921-0 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Context Expansion of urban green space (UGS) enhances greenery and its benefits in cities. However, the impacts of such expansions on regional landscape sustainability and their spatiotemporal traits across the national scale remain unclear.Objectives This study uncovers a trade-off between agricultural ecosystem services and urban human well-being-the loss of grain production due to UGS expansion consuming cropland-in China from 2000 to 2020. It proposes a safety boundary for UGS expansion to minimize the costs of grain production while addressing the escalating demand for UGS exposure.Methods UGS expansion and cropland loss are quantified using land cover products, with statistical data contributing to the established relationship between grain loss and UGS coverage. UGS expansion scenarios for 2040 are simulated through bottom-up modeling.Results Quadrupled UGS area growth contributed approximately one-third to urban expansion during 2000-2020 in China. Despite improvements in per capita UGS area implying enhanced UGS exposure during rapid urbanization, UGS expansion resulted in a national grain production loss of 4.2 +/- 1.4 million t from 2000 to 2020, accelerating post-2010. This loss is equivalent to the annual food intake of 9.3 million Chinese people. We propose a 30.87% UGS coverage target in China by 2040 to preserve UGS access while minimizing grain loss under future urbanization.Conclusions Acknowledging the critical role of UGS expansion in the issue of cropland loss to urbanization is imperative. Our results offer insights into ensuring human well-being and ecosystem services through landscape and urban planning. |
| WOS关键词 | LAND ; URBANIZATION ; CONSEQUENCES ; DYNAMICS ; AREAS |
| WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography ; Geology |
| WOS记录号 | WOS:001248751500001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/205308]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Dou, Yinyin |
| 作者单位 | 1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Yulin,Kuang, Wenhui,Ren, Zhibin,et al. Green or grain? Impact of green space expansion on grain production in Chinese cities and its implications for national urban greening schemes[J]. LANDSCAPE ECOLOGY,2024,39(7):117. |
| APA | Dong, Yulin,Kuang, Wenhui,Ren, Zhibin,Dou, Yinyin,&Deng, Xiangzheng.(2024).Green or grain? Impact of green space expansion on grain production in Chinese cities and its implications for national urban greening schemes.LANDSCAPE ECOLOGY,39(7),117. |
| MLA | Dong, Yulin,et al."Green or grain? Impact of green space expansion on grain production in Chinese cities and its implications for national urban greening schemes".LANDSCAPE ECOLOGY 39.7(2024):117. |
入库方式： OAI收割
来源：地理科学与资源研究所
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