摘要
以1990到2005年中国玉米产业为实证材料,排除气候因子的影响后,运用因子分析法、主成分分析法和多元线性回归方法考察了其他影响玉米产量增长的因素。结果表明,除气候因素外,玉米产量的增长主要得益于资本和土地要素的投入,其次是农田灌溉水平的提高。文章最后提出了相应的政策建议。
The article is based on the empirical materials of Chinese corn industry from 1990 to 2005. After excluding the impact of climatic factors, the article used factor analysis, principal component analysis and multivariate linear regression method to analyze the other factors affecting Chinese corn output growth. The results showed that, except for climatic factor, the growth in corn production mainly benefited from two factors： the first one is the capital and land input, and the other is the irrigation improvement. At last, the article concluded with some corresponding policy recommendations.
出处
《四川农业大学学报》
CSCD
北大核心
2009年第2期157-161,共5页
Journal of Sichuan Agricultural University
基金
四川省科技富民强县重点项目"丘区射洪县循环经济型现代农业科技集成研究与示范"(编号:07NG001-020)
关键词
玉米
产量增长
因子分析
影响因素
corn
output growth
factor analysis
influential factor
