Rice yields decline with higher night temperature from global warming

文献类型： 外文期刊

第一作者： Peng, SB

作者： Peng, SB;Huang, JL;Sheehy, JE;Laza, RC;Visperas, RM;Zhong, XH;Centeno, GS;Khush, GS;Cassman, KG

作者机构： Univ Calif Davis, Davis, CA 95616 USA;Univ Calif Davis, Davis, CA 95616 USA; Univ Nebraska, Dept Agron & Hort, Lincoln, NE 68583 USA; Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou 510640, Guangdong, Peoples R China; Huazhong Agr Univ, Coll Plant Sci & Technol, Crop Physiol & Prod Ctr, Wuhan 430070, Peoples R China; Int Rice Res Inst, Crop Soil & Water Sci Div, Manila, Philippines

期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 2020影响因子：11.205； 五年影响因子：12.291 ）

ISSN： 0027-8424

年卷期： 2004 年 101 卷 27 期

页码：

收录情况： SCI

摘要： The impact of projected global warming on crop yields has been evaluated by indirect methods using simulation models. Direct studies on the effects of observed climate change on crop growth and yield could provide more accurate information for assessing the impact of climate change on crop production. We analyzed weather data at the International Rice Research Institute Farm from 1979 to 2003 to examine temperature trends and the relationship between rice yield and temperature by using data from irrigated field experiments conducted at the International Rice Research Institute Farm from 1992 to 2003. Here we report that annual mean maximum and minimum temperatures have increased by 0.35degreesC and 1.13degreesC, respectively, for the period 1979-2003 and a close linkage between rice grain yield and mean minimum temperature during the dry cropping season (January to April). Grain yield declined by 10% for each 1degreesC increase in growing-season minimum temperature in the dry season, whereas the effect of maximum temperature on crop yield was insignificant. This report provides a direct evidence of decreased rice yields from increased nighttime temperature associated with global warming.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序