摘要: |
我国的粮食生产与粮食安全问题一直是农业经济学界普遍关注的学术问题,结合耕地面积变化展 开的研究也颇为多见,从全国到各省的分析皆有,但一般集中在粮食主产区省份。陕西省虽不是我国粮食 主产区,但其耕地面积不小,因此对其耕地面积变化与粮食生产的相关性研究也有较强的现实意义。该文 总结了陕西省耕地面积概况和粮食生产概况,以1980~2010年的数据为基础,选取了总量、年变化率等指 标,分析了陕西省耕地面积与粮食产量的相关性问题。研究结果表明:认为近年来陕西省耕地面积、粮食 总产量和人均粮食产量均呈现缓慢增加态势;虽然粮食单位面积产量、耕地面积变化对粮食总产的约束作 用逐渐弱化,但粮食单位面积产量与粮食总产量的相关系数仍为高度相关。提出陕西省应该在未来一段时 期内保持耕地面积的相对稳定,提高粮食单位面积产量。 |
关键词: 陕西省 耕地面积 粮食生产 相关性研究 |
DOI:10.7621/cjarrp.1005-9121.20130114 |
分类号: |
基金项目:该文为陕西广播电视大学2011年度科研立项课题《未来十年陕西省粮食安全问题研究———基于土地资源供给和农业产业结构调整的视 角》(立项号:SB11-B03)阶段性研究成果之一 |
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THE RELATIONSHIP BETWEEN ARABLE LAND CHANGE AND GRAIN PRODUCTION OF SHANXI PROVINCE |
Yao Tao1, Ma Weipeng2
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1.Department of business management of Shanxi radio and television university, Xi'an 710119;2.Academy of earth science and resources of Changan university, Xi'an 710054
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Abstract: |
The general situations of the cultivated land area and grain production in Shaanxi province were summa- rized, based on the data(i.e., total amount, annual change rate, etc.) from 1980 to 2010, the correlation of cultivated area and grain yield were analyzed. The results showed that recent years the farmland area, grain total yield and grain yield per capita all showed a slowly increasing trend in Shanxi province, although the restriction effect of per unit area yield, cultivated land change on grain output gradually decreased, the grain yield per unit ar- ea are highly correlated with the total grain yield. Finally, this paper proposed that Shanxi province should keep the area of cultivated land stable, and improve per unit area yield. |
Key words: area of cultivated land grain production correlation study Shanxi province |