文档介绍：粮食产量影响因素的回归分析
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
计量经济学论文

粮食产量影响因素的回归分析
班级：08物流
姓名：綦淇
学号：130112008034
日期：2011年6月22日
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
关于我国粮食产量影响因素的回归分析
摘要：本文主要采用回归分析的方法对1990—2005年影响我国粮食产量变化的主要因素进行分析，建立了以粮食产量为应变量，粮食作物播种面积、有效灌溉面积、农业机械总动力、化肥施用量和成灾面积五种可量化的影响因素为自变量的多元线性回归模型，利用模型对各个因素进行了比较分析。同时，对模型进行检验，在此基础上提出了一些关于稳定发展粮食生产的可供参考的意见。
关于我国粮食产量影响因素的回归分析
一、文献综述
1、《近年我国粮食产量变化的主要影响因素分析》赵俊晔，李秀峰，王  川著
……采用逐步回归和灰色关联分析对1991～2004年影响我国粮食产量变化的主要因素进行了分析，发现粮食产量变化主要来自稻谷单产变化及玉米和小麦播种面积的变化。有效灌溉面积与粮食产量一直保持高的关联度；成灾面积与粮食产量的关联度剧烈变动，其关联序仅次于有效灌溉面积；化肥、农药、农业机械总动力
of rural drinking water sources, protection of drinking water sources in rural areas by th