| 来源类型 | Working Paper |
| 规范类型 | 论文 |
| Consistent Negative Responses of Rice Yield in China to High Temperatures and Extreme Temperature Events | |
| Xiaoguang Chen; Shuai Chen | |
| 发表日期 | 2017-07-31 |
| 出版年 | 2017 |
| 页码 | EfD DP 17-07 |
| 语种 | 英语 |
| 摘要 | We analyzed a county-level data set of rice yield and daily weather outcomes in China to examine the effects of high temperatures and extreme temperature events on rice yield. We found that (i) rice yield responded negatively to high temperatures (>29°C) and extreme temperature events, including cold and heat waves; (ii) rice yield exhibited highly nonlinear responses to temperature changes: rice yield increased with temperature up to 29°C and peaked with 1,550-1,800 growing degree-days; and (iii) holding current growing seasons and regions constant, average rice yield in China is projected to decrease by 11-50 percent by 2070 under future warming. These results imply that both warming and extreme temperature events pose major challenges for Chinese rice farmers, and that the effectiveness of adaptations will depend on how well they reduce the negative temperature impacts on rice yield on very hot and cold days. |
| 主题 | Development and Environment ; International |
| 子主题 | China |
| URL | http://www.rff.org/research/publications/consistent-negative-responses-rice-yield-china-high-temperatures-and-extreme |
| 来源智库 | Resources for the Future (United States) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/41508 |
| 推荐引用方式 GB/T 7714 | Xiaoguang Chen,Shuai Chen. Consistent Negative Responses of Rice Yield in China to High Temperatures and Extreme Temperature Events. 2017. |
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