改革开放以来宁夏区域差异与空间格局研究——基于人口、经济和粮食重心的演变特征及耦合关系

发布时间：2018-01-30 05:55

本文关键词： 空间格局耦合关系经济重心人口重心粮食重心宁夏　出处：《经济地理》2014年05期 　论文类型：期刊论文

【摘要】：运用重心概念及相关公式,采用各县区的人口、GDP及粮食作物产量数据计算改革开放以来宁夏人口重心、经济重心和粮食重心,并对三者的动态演化、驱动因子及耦合关系进行研究。结果显示:①宁夏经济重心明显偏北,移动幅度较小;②人口重心由几何重心南侧快速移动到北侧,且继续北移,移动幅度较大;③粮食重心主要位于几何重心北侧,重心的跳动幅度最大,且最不稳定,规律性不明显;④宁夏经济重心与粮食重心的空间耦合性不高,人口重心与粮食重心具有空间耦合性,经济重心与人口重心具有显著的空间耦合性。
[Abstract]:Using the concept of center of gravity and relevant formulas, the population center of gravity, economic center of gravity and grain center of gravity of Ningxia since the reform and opening up were calculated by using the data of population GDP and grain crop yield of each county area, and the dynamic evolution of the three factors was analyzed. The driving factor and coupling relationship were studied. The results showed that the center of economic gravity of Ningxia was obviously northward and the range of movement was relatively small. (2) the center of gravity of population moves rapidly from the south side of the geometric center of gravity to the north side, and continues to move northward, and the movement range is larger; (3) the grain center of gravity is mainly located on the north side of the geometric center of gravity, the range of the center of gravity is the largest, the most unstable, and the regularity is not obvious; (4) the spatial coupling between economic gravity center and grain gravity center in Ningxia is not high, the population gravity center and grain gravity center have spatial coupling, and the economic center and population center have significant spatial coupling.
【作者单位】：宁夏大学资源环境学院;宁夏大学西北退化生态系统恢复与重建教育部重点实验室;
【基金】：国家自然科学基金项目(41161020)
【分类号】：F127;C924.2;F224
【正文快照】： 区域发展不均衡是我国的基本国情[1],在宁夏表现尤甚。宁夏是我国大陆上面积最小的省份,面积仅5.18万km2,2011年人口639.45万人,GDP总量2 102.21亿元,仅分别占全国的0.54%、0.47%和0.44%,但自治区内部差异明显。自然地理本底表现为北部宁夏平原沿黄灌区、中部干旱风沙带和南部

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