基于灰色关联模型的河南省粮食生产驱动力分析

1材料与方法1．1河南省粮食生产特征河南省1978-2006这29年粮食资料统计表明，其粮食产量变化、单位耕地粮食产量及人均粮食总体特征为波动中趋于上升（图见第124页Fig．1）。具体表现为：一是粮食总产量、人均粮食和单产整体呈上升趋势；二是粮食产量波幅较大；三是粮食产量波动频率较高。这种频率过高、幅度较大的波动，极其严重地影响了粮食生产的稳步发展。

Analysis of Driving Factors of Grain Output in Henan Province Based on Grey Correlation Model

Henan Province is an important grain production base, whose stable production is related to the economic development and social stability significantly. To summarize the primary factors of grain producing, we used grey correlation analysis method to analyze 10 correlative factors such as grain yield, grain yield per unit area, effective irrigated area, rural employed persons, grain planting area, consumption of chemical fertilizer in 25 years. The results showed order of synthetic degree of incidence: effective irrigated area>rural electricity consumption>consumption of chemical fertilizer>disaster crop area>grain yield per unit of area>total power of agricultural machinery>afflicted crop area>grain planting area>number of the rural employed persons. Finally, according to synthetic degree of incidence between influential factors and total grain output respectively, a series of measures and the suggestions was proposed for grain production in Henan Province, which will also provide the scientific basis and help for the government correct decision-making.