山东农业科学2016，Vol.48Issue(7)：164-168,5.DOI:10.14083/j.issn.1001-4942.2016.07.036
基于 LMDI 的山东省粮食产量影响因素分解
Decomposition of Grain Yield Influencing Factors in Shandong Province Based on LMDI
摘要
Abstract
To quantitatively explore the influences of different factors on grain yield in Shandong Province and analyze the internal causes of grain yield fluctuation,the LMDI model was used to study the change rea-sons of grain yield from 1994 to 2013 in Shandong Province,which was decomposed into 4 factors,including cultivated land area,multiple -cropping index,grain farming index and grain yield per hectare.The results showed that in recent 20 years,the grain yield presented fluctuating increases in Shandong Province,and the change trend of grain yield per hectare was roughly consistent with that of grain total yield.At the provincial level,the main reasons of restraining grain yield were the cultivated land area and grain farming index,and the main reason of promoting grain yield was grain yield per hectare.At the prefecture -city level,the effect direction and intensity of each factor on grain yield had larger differences,which showed strong individual differences.关键词
粮食产量/影响因素/LMDI 模型/山东省Key words
Grain yield/Influencing factor/LMDI model/Shandong Province分类
管理科学引用本文复制引用
乔秀杰,吕晓,张全景..基于 LMDI 的山东省粮食产量影响因素分解[J].山东农业科学,2016,48(7):164-168,5.基金项目
山东省软科学研究计划一般项目（2014RK01659）；山东省高等学校人文社会科学研究项目 （）
