摘要
根据甘肃省1985～2005年的相关调查与统计资料,选取影响粮食产量的10个因素,进行了灰色关联度分析和主成分分析,结果表明,20年来甘肃省粮食总产与单产在波动中呈增长趋势;影响因素可以归纳为农业现代化水平、自然灾害和农业土地利用状况3个方面。
Using the statistics of the grain output in Gansu from 1985 to 2005 and the discover dates,and focused on ten main affecting factors,The wavelet analysis has been used to analyze the grain output and the affecting factors in Gansu Province from l985 to 2005 based on gray incidence analysis and principal component analysis.The research indicted the factors that influence grain yield in Gansu Province could be induced the standand of agriculture modernizationt,natrural disasters and the state of agriculture land use.
出处
《国土与自然资源研究》
北大核心
2009年第3期31-32,共2页
Territory & Natural Resources Study
关键词
粮食生产
影响因素
灰色关联分析
主成分分析
甘肃省
the grain yield
affecting factors
gray incidence analysis
principal component analysis
Gansu Province
