[1]ZHAO Yanxi,XIAO Dengpan,TANG Jianzhao,et al.Effects of Climate Change on the Yield of Major Grain Crops and Its Adaptation Measures in China[J].Research of Soil and Water Conservation,2019,26(06):317-326.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 06
Page number:
317-326
Column:
Public date:
2019-10-17
- Title:
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Effects of Climate Change on the Yield of Major Grain Crops and Its Adaptation Measures in China
- Author(s):
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ZHAO Yanxi, XIAO Dengpan, TANG Jianzhao, BAI Huizi
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Hebei Engineering Research Center for Geographic Information Application, Institute of Geographical Sciences, Hebei Academy of Sciences, Shijiazhuang 050011, China
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- Keywords:
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crop yield; climate change; agricultural management measures
- CLC:
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S162.5+3
- DOI:
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- Abstract:
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Climate change has had the important impact on the production of main grain crops in China in the past few decades. In order to examine the response and adaptation of crop yield to climate change to guarantee food security, based on domestic research literature, the research methods were analyzed and summarized, the effects of domestic climate change on the yield of wheat, maize, rice and other crops were reviewed. The following conclusions were drawn as follows. (1) The research methods of crop yield mainly include field experiment observation method, statistical analysis method and crop model simulation method. Among them, the most intuitive method is field observation method, while the most operable and widely used method is statistical analysis method, and crop model simulation machine is highly rational, which could quantitatively describe the impact of climatic factors on crops and has good extrapolation effect. (2) In recent decades, the increase of temperature and radiation change in wheat growth period have led to wheat yield to increase by 0.9%~12.9% in north China and decrease by 1.2%~10.2% in south China; the contribution of climate warming to maize yield was -41.4%~0.4%; the increase of temperature and radiation in the growth period of rice was beneficial to the increase of rice yield in northeast China, while the contribution rate was between 1.01%~3.29%, whereas the decrease of radiation had the negative effect on rice yield in major rice growth regions in south China, such as the Yangtze River Basin except late rice in the Yangtze River Basin. (3) Under the future climate change situation, the new wheat varieties should be cultivated by prolonging the reproductive growth period, increasing the number of grains and improving the harvest index in order to compensate the adverse effects of climate warming on crop yield; the maize varieties with high-temperature resistant and long reproductive growth could be used to cope with the change of climatic factors such as temperature and precipitation; the high-temperature resistant rice varieties should be cultivated to compensate crop production risk caused by the change of temperature, radiation and other factors.