河南省粮食单产影响因素分析及变化趋势预测

Trend prediction and factors analysis on grain yield per unit area of Henan Province

利用灰色系统理论对1999—2008年的河南省粮食单产影响因素进行灰色关联分析,运用GM(1,1)模型对其发展进行关联分析,动态研究了河南省粮食生产发展趋势,为河南省粮食稳产增产提供理论依据.

Based on the grey system theory,this paper analyzes the grey correlation degree of graion yield per unit area and the trend correlation by the model of GM（1,1） in Henan Province from 1999 to 2008.The results of the research show the dynamic trend of the grain yield,which can provide theoretical basises for the stable development of grain yield in Henan Province.