地理国情普查数据支持下的人口空间化方法Method of population spatialization under the support of geographic national conditions data
杨瑞红,董春,张玉
摘要(Abstract):
针对传统的人口空间化方法存在数据源多、模型复杂、忽视居住建筑类型的影响等问题,提出了一种以居住建筑作为人口分布参考的人口空间化方法。在地理国情普查数据的支持下,文章选取株洲市境内的18个乡镇为研究区。首先,将研究区内的居住建筑重分类为多层房屋、低矮房屋和废弃房屋,采用最小二乘法求算各类居住建筑的居住密度。然后,根据各乡镇人口估计值的相对误差对各乡镇各类居住建筑的居住密度进行修正。最后,运用GIS的叠加分析技术得到250m格网人口密度图。检验结果表明,人口估计值与人口统计值的线性拟合斜率为0.965,另外基于居住建筑重分类的人口空间化方法使得人口估计精度较未重分类时有了明显提高。
关键词(KeyWords): 地理国情;人口空间化;居住建筑重分类;株洲
基金项目(Foundation): 国家科技支撑计划项目(2012BAH28B03)
作者(Author): 杨瑞红,董春,张玉
DOI: 10.16251/j.cnki.1009-2307.2017.01.015
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