扬州大学教师个人主页服务平台 Jin Tao--Home-- 江苏省粮食单产空间差异的因素分解

金涛正高级

Tao Jin is an associate professor of Yangzhou University, her current research focuses on tempo-spatial variation of cultivated land use and grain production at regional scale. Her policy proposal on "developing paddy field resources in southern China and enhancing China's comprehensive grain output capacity" was listed as a collective proposal of China Democratic League in the th...Detials

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江苏省粮食单产空间差异的因素分解

Release time:2021-08-24 Hits:

Impact Factor:2.27
Affiliation of Author(s):扬州大学农学院
Journal:地理与地理信息科学
Funded by:国家科技支撑计划重大项目（2011BAD16B03）；江苏省高校优势学科建设工程项目（苏政办发[2011]6号）；
Key Words:粮食单产;因素分解;生产力因素;结构因素;江苏省
Abstract:区分粮食单产空间差异的来源,是粮食单产空间特征和成因机制研究的一个基础问题,可以为粮食促产政策的制定提供较为可靠的依据。基于粮食作物配置的视角,以江苏省为例,运用因素分解法,探讨粮食单产空间结构及单产变化空间差异的贡献因素。结果表明:1)当前江苏省粮食作物配置结构的空间差异可以说明近80%的粮食单产的空间差异,而江苏省粮食生产力的空间分布与粮食单产空间差异仅低度相关。2)1990s中期以来,江苏省粮食单产增幅有南弱北强的倾向,主要来源是生产力效应,结构效应对这种空间分化起到强化作用。因此,相对于笼统的粮食单产指标,排除结构因素的粮食生产力因素能更为准确地体现粮食现实生产力的变化。
Co-author:ZM,LJF
First Author:Jin Tao
Indexed by:学术论文
Correspondence Author:Jin Tao
Document Code:2014，30(5):48-53
Document Type:J
Volume:30
Issue:5
Page Number:48-53
ISSN No.:1672-0504
Translation or Not:no
CN No.:13-1330/P
Date of Publication:2014-09-15

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