摘要
运用灰色斜率关联度和生产函数2种方法,分析了新疆1980～2009年粮食生产的影响因素及其贡献率。2种方法分析结果一致地表明,新疆1980～2009年粮食产量的增长主要取决于农业机械总动力、化肥施用量和有效灌溉面积三个方面;分时段来看,有效灌溉面积和粮食播种面积对新疆粮食产量的影响程度不断增强,而农业机械总动力和化肥施用量两种科技投入要素对新疆粮食产量的影响却经历了由强变弱的变化。
By means of grey slope coefficient correlation degree and production function,the paperanalyzes main factors and growth contribution of grain production from 1980～2009.The result indicates that,from 1980～2009,the first three crucial factors impacting grain yield of Xinjiang region are agricultural machinery power,fertilization dosage and effective irrigation area;while viewing from the point of time,the influence of effective irrigation area and farming area are constantly strengthening,while the agricultural machinery power and fertilization dosage have experienced a change from strong to weak.
出处
《干旱地区农业研究》
CSCD
北大核心
2011年第5期204-208,共5页
Agricultural Research in the Arid Areas
基金
北京林业大学青年科技启动基金(BLX2009015)
关键词
粮食生产
灰色斜率关联度
生产函数
贡献率
grain production
grey slope coefficient correlation degree
production function
contribution rate
