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根据甘肃省夏粮主产县产量资料 ,计算出各县夏粮气候产量序列后 ,使用R型和Q型因子分析方法 ,分析甘肃省夏粮气候产量在区域分布及时间趋势上的变化特征。
According to the yield data of the main summer grain producing counties in Gansu Province, after calculating the summer grain yield series of each county, the change characteristics of regional grain yield and time trend of summer grain yield in Gansu Province were analyzed using R and Q factor analysis methods.