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Characteristics of the Warming Trend During Winter Wheat Growing Seasons in Jiangsu Province of China

  • Xiangying Xu
  • Xinkai Zhu
  • Wenshan GuoEmail author
  • Chunyan Li
  • Jinfeng Ding
Conference paper
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 546)

Abstract

Global warming has great influences on crop yields. However, several researchers have concluded that global warming has taken a “hiatus” in recent years. Here, we hope to identify the temperature trends of the winter wheat growing seasons and quantitatively estimate the effects of temperature variations on wheat yields. We carry out trend analysis on daily maximum (Tmax) and minimum temperatures (Tmin) from 1980 to 2014 in Jiangsu Province of China. The results indicate there are increasing trends for both Tmax and Tmin during 35 years, but no significant trends in the years after 2000. In addition, the increasing rates of the Tmin are larger than those of Tmax over the 35 years within all stations and all growing stages, which suggests that winter wheat is exposed to asymmetrical warming. The results of correlation analysis and regression analysis reveal that increases in Tmin have significant adverse effects on wheat yields.

Keywords

Winter wheat Yield Asymmetric warming 

Notes

Acknowledgments

This work was supported by the National Key Research and Development Program of China (2016YFD0300107) and the Specialized Research Fund for the Doctoral Program of Higher Education (doctoral supervisor) (NO: 20133250110001). It was also supported by the National Natural Science Foundation of China (NO: 31401317).

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Copyright information

© IFIP International Federation for Information Processing 2019

Authors and Affiliations

  • Xiangying Xu
    • 1
    • 2
  • Xinkai Zhu
    • 1
  • Wenshan Guo
    • 1
    Email author
  • Chunyan Li
    • 1
  • Jinfeng Ding
    • 1
  1. 1.Jiangsu Provincial Key Lab of Crop Genetics and Physiology/Wheat Research InstituteYangzhou UniversityYangzhouChina
  2. 2.Information and Engineering CollegeYangzhou UniversityYangzhouChina

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