Impacts of weather variations on rice yields in China based on province-level data

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• 作者：Xiaoguang Chen ; Guoping Tian
• 关键词：China ; Global warming ; Rice yield ; Temperature ; Solar radiation
• 刊名：Regional Environmental Change
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：16
• 期：7
• 页码：2155-2162
• 全文大小：437 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Geoecology and Natural Processes
  Geology
  Oceanography
  Geography
  Nature Conservation
  Regional Science
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1436-378X
• 卷排序：16

文摘

Using province-level yield data and daily weather data from 1980 to 2012, we investigated the responses of early rice, middle-season rice, and late rice yields to weather variations in China. In contrast to prior studies that found negative impacts of elevated daily minimum temperature (T_min) on rice yield in tropical and subtropical regions, we discovered that rising T_min increased early and late rice yields in China, with the positive temperature effects varying by rice-growth stage. Consistent with the previous assessments, we found that precipitation had small but negative effects on early and late rice yields. Responses of middle-season rice yield to variations in T_min and precipitation are statistically insignificant. The effect of radiation on rice yields also differed by rice variety and rice-growth stage. Our findings provide useful information for developing effective rice-breeding programs and climate adaptation strategies in China.