Mapping the potential northern limits and promotion extent of ratoon rice in China
Ratoon rice has emerged as a promising rice cropping system to improve grain production and reduce labor costs compared with traditional single/double rice in China. However, the potential planting areas of ratoon rice in China remain unclear. This research investigated the potential northern limits...
| Autores principales: | , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2023
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/140096 |
| _version_ | 1855540945638916096 |
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| author | Yang, Jingya Hu, Qiong You, Liangzhi Cai, Zhiwen Chen, Yunping Wei, Haodong Xu, Zilu He, Zhen Yin, Gaofei Xu, Baodong |
| author_browse | Cai, Zhiwen Chen, Yunping He, Zhen Hu, Qiong Wei, Haodong Xu, Baodong Xu, Zilu Yang, Jingya Yin, Gaofei You, Liangzhi |
| author_facet | Yang, Jingya Hu, Qiong You, Liangzhi Cai, Zhiwen Chen, Yunping Wei, Haodong Xu, Zilu He, Zhen Yin, Gaofei Xu, Baodong |
| author_sort | Yang, Jingya |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Ratoon rice has emerged as a promising rice cropping system to improve grain production and reduce labor costs compared with traditional single/double rice in China. However, the potential planting areas of ratoon rice in China remain unclear. This research investigated the potential northern limits and promotion extent of ratoon rice in China by considering its climatic suitability based on the optimized maximum entropy (MaxEnt) model as well as terrain and land use conditions. The MaxEnt model derived by all environmental variables yielded a good performance, with average AUC (area under the curve) and TSS (true skill statistic) over the validation dataset of 0.940 and 0.825, respectively. The comparison with field samples and previous studies revealed the reliability of the derived potential promotion areas. Potential northern limits contained a closed curve surrounding the Sichuan Basin, and the other curve ran from Yunnan Province to Jiangsu Province. Safe promotion areas of ratoon rice in China were 472,003 km2, mainly located in Sichuan, Hubei, Guangxi and Hunan. Risky promotion areas were 74,150 km2, which were dominant in Henan, Anhui and Yunnan. Our study provides crucial information for rice planting pattern adjustment to alleviate national food insecurity caused by the loss of double rice. |
| format | Journal Article |
| id | CGSpace140096 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1400962025-12-08T10:11:39Z Mapping the potential northern limits and promotion extent of ratoon rice in China Yang, Jingya Hu, Qiong You, Liangzhi Cai, Zhiwen Chen, Yunping Wei, Haodong Xu, Zilu He, Zhen Yin, Gaofei Xu, Baodong models cropping systems ratoons climate rice labour costs land use geography planting food insecurity Ratoon rice has emerged as a promising rice cropping system to improve grain production and reduce labor costs compared with traditional single/double rice in China. However, the potential planting areas of ratoon rice in China remain unclear. This research investigated the potential northern limits and promotion extent of ratoon rice in China by considering its climatic suitability based on the optimized maximum entropy (MaxEnt) model as well as terrain and land use conditions. The MaxEnt model derived by all environmental variables yielded a good performance, with average AUC (area under the curve) and TSS (true skill statistic) over the validation dataset of 0.940 and 0.825, respectively. The comparison with field samples and previous studies revealed the reliability of the derived potential promotion areas. Potential northern limits contained a closed curve surrounding the Sichuan Basin, and the other curve ran from Yunnan Province to Jiangsu Province. Safe promotion areas of ratoon rice in China were 472,003 km2, mainly located in Sichuan, Hubei, Guangxi and Hunan. Risky promotion areas were 74,150 km2, which were dominant in Henan, Anhui and Yunnan. Our study provides crucial information for rice planting pattern adjustment to alleviate national food insecurity caused by the loss of double rice. 2023-01 2024-03-14T12:08:54Z 2024-03-14T12:08:54Z Journal Article https://hdl.handle.net/10568/140096 en Limited Access Elsevier Yang, Jingya; Hu, Qiong; You, Liangzhi; Cai, Zhiwen; Chen, Yunping; Wei, Haodong; Xu, Zilu; He, Zhen; Yin, Gaofei; Xu, Baodong. 2023. Mapping the potential northern limits and promotion extent of ratoon rice in China. Applied Geography 150 (January 2023): 102822. https://doi.org/10.1016/j.apgeog.2022.102822 |
| spellingShingle | models cropping systems ratoons climate rice labour costs land use geography planting food insecurity Yang, Jingya Hu, Qiong You, Liangzhi Cai, Zhiwen Chen, Yunping Wei, Haodong Xu, Zilu He, Zhen Yin, Gaofei Xu, Baodong Mapping the potential northern limits and promotion extent of ratoon rice in China |
| title | Mapping the potential northern limits and promotion extent of ratoon rice in China |
| title_full | Mapping the potential northern limits and promotion extent of ratoon rice in China |
| title_fullStr | Mapping the potential northern limits and promotion extent of ratoon rice in China |
| title_full_unstemmed | Mapping the potential northern limits and promotion extent of ratoon rice in China |
| title_short | Mapping the potential northern limits and promotion extent of ratoon rice in China |
| title_sort | mapping the potential northern limits and promotion extent of ratoon rice in china |
| topic | models cropping systems ratoons climate rice labour costs land use geography planting food insecurity |
| url | https://hdl.handle.net/10568/140096 |
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