期刊论文

中文

湖北农业科学

0439-8114

2017

56

13

2553-2559

10.14088/j.cnki.issn0439-8114.2017.13.039

湖北省国土资源厅行业科研专项（ETZ2015A09）； 华中师范大学中央高校基本科研业务费专项资金（CCNU15A02049）；

本校为第一机构

以湖北省为研究区域,选取9个影响粮食产量因素指标,通过对自变量之间的多重共线性进行分析诊断,构建了基于C-D生产函数的2000~2014年湖北省粮食产量影响因素的偏最小二乘回归(Partial least squares regression,PLSR)模型.PLSR模型中,自变量对因变量均具有较好的解释能力,回归模型的Rcv2=0.946,表明回归模型的精度较高,拟合效果较好,可靠性强.结果表明,粮食作物播种面积、农业机械化总动力、农田有效灌溉面积、农用化肥施用量以及农村用电量共5个指标是影响湖北省粮食产量的关键因素.

Taking Hubei Province as the research area, 9 indicators were selected which affected grain production from 2000 to 2014 in Hubei province, the influence factors of grain production partial least-square regression model were constructed which based on C-D production function after analyzing and diagnosing the multiple mutual linear between the independent variables. The PLSR model of grain production indicated that the independent variables had good explanatory power for the dependent variables. Moreover, the goodness of fit Rcv2=0.946 of regression model showed there were high precision, stro...