榆林市人口与经济空间关系及格局演变实证研究

基于不均衡指数、人口与经济地理集中度及人口经济一致性系数,对1995-2015年榆林市人口与经济的空间关系及格局演变进行研究,结果表明:1)1995-2015年榆林市人口与经济分布的不均衡指数均为正数,各区县间存在明显的空间正相关,尤其是经济格局的不均衡程度趋势明显。2)全市人口分布趋于集中,部分区县空间格局变化较显著,人口地理集中指数高的地区主要分布在榆林市东部的绥德县、米脂县和吴堡县。3)经济地理集中指数高的区域由东南部向北部转移,经济的极化效应要明显大于人口的集聚效应,但人口集聚高值区与经济集聚高值区在空间上出现分离。4)榆林市大部分地区以人口集聚高于经济集聚为主;在空间分布上,经济集聚高于人口集聚类型主要集中在北部区县,而南部区县则以经济集聚低于人口集聚类型为主。最后,从保持适度人口规模、大力发展经济、实施合理的人口迁移战略等方面提供了优化榆林市人口分布与经济格局的建议。

An analysis of the spatial relationship and pattern evolution of population and economy of Yulin City

Based on the unbalance index, the geographic concentration of population and economy, and the consistency coefficient of population and economy, this paper studied the spatial relationship and pattern evolution of population and economy in Yulin from 1995 to 2015. Results show that: 1) the imbalance index of population and economy distribution in Yulin City from 1995 to 2015 was positive, and there were obvious spatial autocorrelations among districts and counties. In particular, the imbalance of economic pattern was obvious; 2) the population distribution of the city is concentrated, and the spatial pattern of some districts and counties is more significant. The areas with high population concentration index are mainly distributed in Suide County, Mizhi County, and Wubao County in the eastern part of Yulin City; 3) areas with high concentration index of economic geography were moving from the Southeast to the North, and the polarization effect of the economy is obviously, which is larger than that of the population. However, the high concentration area of population concentration and the high concentration area of economic agglomeration are spatially separated; 4) in most areas of Yulin City, population concentration is higher than that of economic agglomeration. In the spatial distribution, the economic agglomeration is higher than the population agglomeration type mainly in the Northern district, while the Southern counties are dominated by the regional agglomeration. Finally, from the maintenance of appropriate population size, vigorously develop the economy and the implementation of a reasonable population migration strategy, this paper also provides a framework for optimizing the population and economic situation for Yulin City.