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来源类型Discussion Paper
规范类型论文
Consistent Negative Responses of Rice Yield in China to High Temperatures and Extreme Temperature Events
Chen, Xiaoguang; Chen, Shuai
发表日期2017-08-03
出版年2017
语种英语
摘要

Chen, Xiaoguang and Shuai Chen. 2017. “Consistent Negative Responses of Rice Yield in China to High Temperatures and Extreme Temperature Events.” EfD Discussion Paper Series 17-07.
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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Agriculture ; Policy Design
URLhttps://efdinitiative.org/publications/consistent-negative-responses-rice-yield-china-high-temperatures-and-extreme
来源智库Environment for Development Initiative (Sweden)
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/138398
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GB/T 7714
Chen, Xiaoguang,Chen, Shuai. Consistent Negative Responses of Rice Yield in China to High Temperatures and Extreme Temperature Events. 2017.
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