地理学报 ›› 2011, Vol. 66 ›› Issue (12): 1597-1606.doi: 10.11821/xb201112002
陈江平, 张瑶, 余远剑
收稿日期:
2011-04-07
修回日期:
2011-08-17
出版日期:
2011-12-20
发布日期:
2012-01-19
作者简介:
陈江平(1975- ), 女, 湖北洪湖人, 博士, 副教授.研究方向为空间分析, 数据挖掘等.E-mail: chenjp_lisa@163.com
基金资助:
国家自然科学基金青年科学资金项目(40801152);教育部留学科研基金项目(213153249)
CHEN Jiangping, ZHANG Yao, YU Yuanjian
Received:
2011-04-07
Revised:
2011-08-17
Online:
2011-12-20
Published:
2012-01-19
Supported by:
National Natural Science Foundation of China--Youth Science Fund Project, No.40801152;Scholarship Research Fund Project, Ministry of Education, No.213153249
摘要: 可塑性面积单元问题(modifiable areal unit problem,MAUP) 效应是对空间数据分析结果产生不确定性影响的主要原因之一,在空间自相关分析中也不例外.本文分别利用网格模拟数据和中国人均GDP实例数据为数据源,以全局Moran's I 系数来探究空间自相关统计中的MAUP效应,分析结果表明,变量的空间自相关程度依赖于空间的粒度大小与单元的划分方法,但空间单元的变化与自相关性并不存在某种函数关系.因此,在进行空间自相关研究时必须选择合适的地理单元的粒度大小和分区.最后本文给出一种基于地统计内插方法来降低MAUP对空间自相关分析影响.
陈江平, 张瑶, 余远剑. 空间自相关的可塑性面积单元问题效应[J]. 地理学报, 2011, 66(12): 1597-1606.
CHEN Jiangping, ZHANG Yao, YU Yuanjian. Effect of MAUP in Spatial Autocorrelation[J]. Acta Geographica Sinica, 2011, 66(12): 1597-1606.
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