Climate change has changed planting structure greatly in cold regions. Studies are needed that understand the relationship between climate change and agriculture in cold regions and to serve as references for studies of the impact of climate change on agriculture in similar areas. This paper uses Heilongjiang Province as a case study; seven test methods and mutual information were used to analyse the variation trend, abrupt changes and relationship between climate and planting structure. The following was concluded. (1) The precipitation trend was not significant; temperature showed a significant upward trend, the minimum temperature showed the sharpest increase. (2) The proportion of area planted in rice and maize showed a significant upward trend. The trend of rice was the most pronounced, the trend of wheat significantly decreased. (3) Abrupt changes in temperature occurred in the 1980s; abrupt changes in wheat were concentrated at the end of the 1990s. (4) The relationship between temperature and planting structure was stronger than that of precipitation, and the relationship between minimum temperature and planting structure was stronger than that of maximum temperature. The results show that temperature variables, especially minimum temperature, are the main factors affecting the change in planting structure in cold regions.
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April 20 2017
Study of the variation trend, abrupt behavior and relationship between climate and planting structure in a cold region of China: a case study of Heilongjiang Province
Wei Pei;
Wei Pei
1School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Collaborative Innovation Centre of Promote Grain Production in Heilongjiang Province, Harbin 150030, China; and Key Laboratory of Water-Saving Agriculture of Regular Institutions of Higher Education in Heilongjiang Province, Harbin 150030, China
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Qiang Fu;
1School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Collaborative Innovation Centre of Promote Grain Production in Heilongjiang Province, Harbin 150030, China; and Key Laboratory of Water-Saving Agriculture of Regular Institutions of Higher Education in Heilongjiang Province, Harbin 150030, China
E-mail: [email protected]
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Dong Liu;
Dong Liu
1School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Collaborative Innovation Centre of Promote Grain Production in Heilongjiang Province, Harbin 150030, China; and Key Laboratory of Water-Saving Agriculture of Regular Institutions of Higher Education in Heilongjiang Province, Harbin 150030, China
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Tianxiao Li;
Tianxiao Li
1School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Collaborative Innovation Centre of Promote Grain Production in Heilongjiang Province, Harbin 150030, China; and Key Laboratory of Water-Saving Agriculture of Regular Institutions of Higher Education in Heilongjiang Province, Harbin 150030, China
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Kun Cheng;
Kun Cheng
1School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Collaborative Innovation Centre of Promote Grain Production in Heilongjiang Province, Harbin 150030, China; and Key Laboratory of Water-Saving Agriculture of Regular Institutions of Higher Education in Heilongjiang Province, Harbin 150030, China
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Song Cui
Song Cui
1School of Water Conservancy & Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Collaborative Innovation Centre of Promote Grain Production in Heilongjiang Province, Harbin 150030, China; and Key Laboratory of Water-Saving Agriculture of Regular Institutions of Higher Education in Heilongjiang Province, Harbin 150030, China
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Journal of Water and Climate Change (2017) 8 (3): 510–523.
Article history
Received:
November 09 2016
Accepted:
March 03 2017
Citation
Wei Pei, Qiang Fu, Dong Liu, Tianxiao Li, Kun Cheng, Song Cui; Study of the variation trend, abrupt behavior and relationship between climate and planting structure in a cold region of China: a case study of Heilongjiang Province. Journal of Water and Climate Change 1 September 2017; 8 (3): 510–523. doi: https://doi.org/10.2166/wcc.2017.152
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