Quantifying Spatio-Temporal Patterns of Rice Yield Gaps in Double-Cropping Systems: A Case Study in Pearl River Delta, China
文献类型：期刊论文
| 作者 | Guo, Yahui2; Wu, Wenxiang2,3 ; Bryant, Christopher Robin1,4
|
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 11期号:5页码:22 |
| 关键词 | rice (oryza) yield potential yield attainable yield gap yield stagnation social-economic impacts adaptive measures |
| ISSN号 | 2071-1050 |
| DOI | 10.3390/su11051394 |
| 通讯作者 | Wu, Wenxiang(wuwenxiang2018@163.com) |
| 英文摘要 | Quantifying the contributing and limiting factors of yield potential is of vital importance, and the closure of existing yield gaps on currently available agricultural land is regarded as the most effective measure to meet future food demands. In this study, the CERES-Rice model and long-term rice yield records of 12 sites from 1981 to 2010 were combined together to investigate the spatial and temporal distributions of yield potential, yield attainable, yield actual, and yield gaps for double cropping rice in the Pearl River Delta (PRD), China. The evaluated yield potential of all the sites ranged from 7500 to 14,900 kg/ha, while yield attainable was from 6400 to 12,665 kg/ha, and yield actual was from 4000 to 7000 kg/ha. The yield gaps between yield potential and yield actual, yield potential and yield attainable, and yield attainable and yield actual were projected to be 3500 kg/ha, 1400 kg/ha, and 2100 kg/ha, respectively. The decrease of yield potential was due to the increasing temperature for early mature rice and the prolonged sunshine hours for the yield potential of late mature rice, respectively. The social-economic impacts of yield actual were also assessed, and adaptive measures were simulated so that the yield would certainly increase. |
| WOS关键词 | PAST 3 DECADES ; WINTER-WHEAT ; CERES-RICE ; MAIZE ; MODEL ; MANAGEMENT |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040304] ; National Key Research and Development Program of China[2016YFA0602402] |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000462661000178 |
| 出版者 | MDPI |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/48687]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wu, Wenxiang |
| 作者单位 | 1.Univ Guelph, Sch Environm Design & Rural Dev, Guelph, ON N1G 2W5, Canada 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Univ Montreal, Geog, Montreal, PQ H2V 2B8, Canada |
| 推荐引用方式 GB/T 7714 | Guo, Yahui,Wu, Wenxiang,Bryant, Christopher Robin. Quantifying Spatio-Temporal Patterns of Rice Yield Gaps in Double-Cropping Systems: A Case Study in Pearl River Delta, China[J]. SUSTAINABILITY,2019,11(5):22. |
| APA | Guo, Yahui,Wu, Wenxiang,&Bryant, Christopher Robin.(2019).Quantifying Spatio-Temporal Patterns of Rice Yield Gaps in Double-Cropping Systems: A Case Study in Pearl River Delta, China.SUSTAINABILITY,11(5),22. |
| MLA | Guo, Yahui,et al."Quantifying Spatio-Temporal Patterns of Rice Yield Gaps in Double-Cropping Systems: A Case Study in Pearl River Delta, China".SUSTAINABILITY 11.5(2019):22. |
入库方式： OAI收割
来源：地理科学与资源研究所
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