夏玉米产量与主要气象因子灰色关联度分析

为了更好分析主要气象因子对夏玉米产量影响情况,采用灰色关联度分析方法,对山东省枣庄市2011—2018年夏玉米产量与主要气象因子的灰色关联分析,结果表明：夏玉米产量与主要气象因子的灰色关联度排序依次为：9月份气温(0.9562)>6—9月份气温(0.9449)>6月份气温(0.9312)>7月份气温(0.9283)>8月份气温(0.9157)>6—9月份光照时数(0.8578)>7月份光照时数(0.8393)>9月份光照时数(0.8283)>6月份光照时数(0.8212)>8月份光照时数(0.7803)>6—9月份降水量(0.7623)>9月份降水量(0.6783)>8月份降水量(0.6239)>6月份降水量(0.5842)>7月份降水量(0.5409)。气温是主要因子,其次是光照时数,最后是降水量,通过夏玉米产量与主要气象因子灰色关联度分析,以期对黄淮海区域夏玉米种植区有所参考。

Grey Correlation Analysis of Summer Corn Yield and Main Meteorological Factors

To better analyze the influence of main meteorological factors on summer maize yield, we used grey correlation analysis method to study their grey correlation from 2011 to 2018 in Zaozhuang City, Shandong Province. The results showed that the grey correlation between summer corn yield and major meteorological factors followed an order of September temperature (0.9562) > June to September temperature (0.9449) > June temperature (0.9312) > July temperature (0.9283) > August temperature (0.9157) > June to September light hours (0.8578) > July light hours (0.8393) > September light hours (0.8283) > June light hours (0.8212) > August light hours (0.7803) > June to September precipitation (0.7623) > September precipitation (0.6783) > August precipitation (0.6239) > June precipitation (0.5842) > July precipitation (0.5409). The temperature was the main factor, followed by light hours, and then was the precipitation. By analyzing the grey correlation degree between summer maize yield and main meteorological factors, the study could provide certain references for summer maize planting areas in huang-huai-hai region.