Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (3): 115-119.doi: 10.11924/j.issn.1000-6850.casb16010132

Special Issue: 小麦 农业气象

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Climate Change in Linhe and Its Impacts on Spring Wheat Yield

Sun Xiangwei, Gao Feixiang, Wang Wenxin, Yang Song   

  1. (Linhe Meteorological Bureau, Linhe Inner Mongolia 015000)
  • Received:2016-01-26 Revised:2016-12-15 Accepted:2016-04-25 Online:2017-02-10 Published:2017-02-10

Abstract: The paper aims to explore the climate change in Linhe and its impacts on spring wheat yield, and to provide a scientific basis for the scientific cultivation of spring wheat. The authors used the data of spring wheat yield and climate data from 1975 to 2009, to analyze the climate change in Linhe and the impacts on spring wheat yield. The results showed that: the average annual temperature had a fluctuant increasing trend, the change rate was 0.70℃/10 a, the abrupt change year of temperature was 1993, the accumulative temperature above 0℃ increased by 188.4(℃·d)/10 a; the average annual precipitation was 150.6 mm; the sunshine hours had a fluctuant decreasing trend, the change rate was -38.4 h/10 a; the climate yield of spring wheat presented a “M” curve, it was relatively low before 1993, the lowest year was 1987; the climate yield was relatively high in 1996-2000; after 2000, the climate yield had a gradually decreasing trend.