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《Scientia Geographica Sinica》 1982-02
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CLIMATIC BASES FOR RATIONAL DISTRIBUTION OF MAIN CROPS IN HEILONGJIANG PROVINCE

Sun Yuting Yang Zhihui (Heilongjiang Institute of Meteorological Science)  
In this paper,the authors had analyzed the interrelationship between theclimatic conditions and the yields of the main crops such as maize,soybean,andwheat in Heilongjiang province;established climate-yield model for yield withsolar radiation,dryness index,and mean air temperature in July and August;also analyzed the variation coefficient of climate-yield relationship for variousregions.On these bases,the authors determined the major planting regions for maize,soybean,and wheat;and studied the distribution structure of various crops in thesemajor planting regiongs by means of the linear programming method.Consequently,the climatic bases for rational distribution of crops were provided.
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