摘要
利用主成分分析法,对12个原始指标进行归纳总结,并根据各自的贡献率,选出最重要的6个影响因素,进而在1996—2007年武强县粮食产量及相关影响因素数据的基础上,建立扩展的C—D生产函数模型。实证结果表明,劳动力素质、基础设施建设仍是制约武强县粮食生产的重要影响因素。
The principal componential analysis is used to study 12 original variables of which 6 most influential ones are elected according to contribution rate.Then,a C-D production function model is established on the basis of the grain yield of 1996-2007 in Wuqiang and related data.Result shows that the factors restricting food production in Wuqiang county are quality of labor force and infrastructural construction.
出处
《河北师范大学学报（哲学社会科学版）》
北大核心
2010年第4期38-41,共4页
Journal of Hebei Normal University(Philosophy and Social Sciences)
关键词
粮食产量
影响因素
主成分分析
grain yield
factors
principal component analysis
