灰色关联分析在粮食产量影响因素分析中的应用——以川东地区为例

为了有效提高粮食产量，通过采用灰色系统理论中的灰色关联分析方法，研究对粮食产量的影响，选择了以粮食作物耕地面积、播种面积、粮食单产、有效灌溉面积、化肥施用量、农业劳动力、农村用电量、农业机械总动力、受旱灾面积9项影响因子。结果表明：播种面积始终是影响遂宁市粮食产量的主要因素；化肥施用和粮食单产是影响粮食产量减少的最主要因素；耕地面积和有效灌溉面积是影响粮食产量增加的主要因素；农村用电量对粮食产量的影响力在下降；农业劳动力对粮食产量的影响始终很小。最后通过分析各影响因子，提出可供参考的关于提高粮食产量的意见。

To Apply Gray Correlation Analysis for Grain Production Affecting Factors ——Taken Eastern of Sichuan Province as an Example

To enhance grain production effectively by gray correlation analysis,and research the influence of grain production,9 factors impacting grain production prominently as follows were selected to establish indices system： cultivated land area,grain planting area,yield per unit,effective irrigation area,using amount of fertilizer,agricultural labor forces,using amount of electric,the total power of agricultural machinery,the damaged area of crops.The correlation analysis was used to analyze the results.It showed that,grain planting area was still the principal factor impacting the total output of grain.Those were using amount of fertilizer and it was still the principal factor impacting the total output of grain in Suining City.The yield per unit and cultivated land area were the two most important factors responsible for decrease of grain output.The effective irrigation area and the damaged area of crops were the two primary factors impacting the increase of grain output.The using amount of electric showed dwindling impact on grain production;agricultural labor forced still hovers at the minuscule impact degree on grain production.Through analysis of several impacting factors,proposing suggestion could be to enhance grain production.