山西省粮食产量及粮食作物结构变化趋势的相关分析

根据山西省50多年来粮食生产的相关调查与统计资料,运用静态分析与动态分析相结合、定性分析与定量分析相结合的方法对山西省粮食产量和作物结构的变化趋势及影响因素进行了分析。结果表明:1949年以来山西省粮食总产与单产在波动中呈增长趋势;粮食作物结构也发生了很大变化。粮食总产的提高主要归功于粮食单产的增加,其中玉米单产的增加对粮食平均单产的提高作用最大,其次是小麦。并提出如下建议:依靠改善农业生产条件和提高农业科技水平增加粮食单产;稳定小麦播种面积,满足人们对小麦口粮消费的需求;玉米作为粮食和饲料兼用的高产高效作物,今后的种植面积应进一步扩大。

The Correlation Analysis on Changes Trend of Grain Yield and Crops Structure of Shanxi Province

According to relative investigations and statistical information of grain production in more than fifty years in Shanxi province, we analysis the change tendencies and influence factors of grain yield and crop structure in Shanxi province by using the combination of static analysis and dynamic analysis and the method of combination of qualitative analysis and quantitative analysis. The result shows: the total output and per unit area yield of grain tend to a increasing tendency in fluctuating in Shanxi province since the foundation of People''s Republic of China; Great changes have taken place in grain structure. The increase of grain total output mainly owes to the increase of per unit area yield of grain. The increase of the per unit area yield of the maize greatly influence the increase of average per unit area yield of grain among them, the second is wheat. Then it puts forward the following suggestions: the increase of the per unit area yield of grain depends on improving of agriculture production condition and agriculture science level; it can stabilize the area of wheat sowing, and to satisfy people''s demands for grain ration consumption of wheat; Maize, as a high-efficient crop of high yield for the grain and feed, the cultivated area in the future should be further expanded.