排序方式： 共有4条查询结果，搜索用时 93 毫秒
1
1.
针对当前国内对人口流动空间分布问题常采用的单一指标以及数理统计方法、忽略了空间效应、很难正确识别人口流动地域类型以及空间分布模式的问题,提出了一种以县域以人口净迁移率为横坐标和以人口总迁移率为纵坐标的复合指标法。首先对2010-2013年福建省85个县域的人口流动地域类型进行了测度和划分;随后,为进一步探索人口流动集聚程度,采用探索性空间数据分析方法进行了量化分析。结果表明:福建省县域人口流动空间分布差异显著;福建省县域人口流动的地理集聚特征显著且存在明显的正相关关系,并且"低-低"类型分布占据主要地位。研究结果为发现福建省县域人口流动空间模式,更好地为人口流动区域差异进行量化分析提供了强有力的支撑。 相似文献
2.
中国流动人口地域类型——划分方法及空间分布(英文) 总被引：3，自引：3，他引：0
With the rapid increase of the number and influence of floating population in China,it is urgently needed to understand the regional types of China’s floating population and their spatial characteristics. After reviewing the current methods for identifying regional types of floating population,this paper puts forward a new composite-index identification method and its modification version which is consisted of two indexes of the net migration rate and gross migration rate. Then,the traditional single-index and the new composite-index identification methods are empirically tested to explore their spatial patterns and characteristics by using China’s 2000 census data at county level. The results show:(1) The composite-index identification method is much better than traditional single-index method because it can measure the migration direction and scale of floating simultaneously,and in particular it can identify the unique regional types of floating population with large scale of immigration and emigration. (2) The modified composite-index identification method,by using the share of a region’s certain type of floating population to the total in China as weights,can effectively correct the over-or under-estimated errors due to the rather large or small total population of a region. (3) The spatial patterns of different regional types of China’s floating population are closely related to the regional differentiation of their natural environment,population density and socio-economic development level. The three active regional types of floating population are mainly located in the eastern part of China with lower elevation,more than 800 mm precipitation,rather higher population densities and economic development levels. 相似文献
3.
With the rapid increase of the number and influence of floating population in China, it is urgently needed to understand the regional types of China’s floating population and their spatial characteristics. After reviewing the current methods for identifying regional types of floating population, this paper puts forward a new composite-index identification method and its modification version which is consisted of two indexes of the net migration rate and gross migration rate. Then, the traditional single-index and the new composite-index identification methods are empirically tested to explore their spatial patterns and characteristics by using China’s 2000 census data at county level. The results show: (1) The composite-index identification method is much better than traditional single-index method because it can measure the migration direction and scale of floating simultaneously, and in particular it can identify the unique regional types of floating population with large scale of immigration and emigration. (2) The modified composite-index identification method, by using the share of a region’s certain type of floating population to the total in China as weights, can effectively correct the over- or under-estimated errors due to the rather large or small total population of a region. (3) The spatial patterns of different regional types of China’s floating population are closely related to the regional differentiation of their natural environment, population density and socio- economic development level. The three active regional types of floating population are mainly located in the eastern part of China with lower elevation, more than 800 mm precipitation, rather higher population densities and economic development levels. 相似文献
4.
中国流动人口地域类型的划分方法及空间分布特征 总被引：21，自引：4，他引：17
随着中国流动人口规模快速增长和影响日趋深远,各级政府在制订经济社会发展战略、区域与城市规划等各类重大决策时,亟需准确地认识和把握中国流动人口的空间分布特征及不同地域类型。本文在综合比较现有流动人口地域类型划分方法优缺点的基础上,提出了综合考虑净迁移率和总迁移率的复合型指标及其修正方法,并根据中国第五次人口普查分区县的流动人口数据,运用以上多种划分方法实证研制出中国流动人口地域类型的多种划分方案,并进行了比较分析。结果表明：① 综合考虑净迁移率和总迁移率的复合指标法,可以同时测度区域流动人口的方向性与活跃度,兼具以上两种单一性指标法的特色和优势,特别是能清晰地分辨出区域流入人口与流出人口的规模均比较大的平衡型活跃区这种独特类型,具有显著的优势。② 进一步考虑份额指标的修正型复合指标法,能有效地消除因区域人口总量过小或过大而导致流动人口活跃度被高估或低估的偏差,划分结果更加符合实际。③ 中国流动人口地域类型的空间分布格局与其自然环境、人口密度及经济社会发展水平的区域差异关系密切。中国各类流动人口活跃区主要分布在位处第三阶梯和大于800 mm等降雨线的东部季风区,其人口密度及经济社会发展水平相对较高。 相似文献
1