Geo-spatial Cognition on Human's Social Activity Space Based on Multi-scale Grids

随着手机等移动互联网设备的广泛使用,海量的人类社会活动的地理数据为地理学研究提供了新的数据基础,基于移动互联网的社会研究成为当前地理学研究的热点.本文以空间网格为基础,选取了2004年到2014年5月之间在中国境内上传至Flickr的包含位置信息的数据作为研究对象,以Alexander分形理论为依据探讨了地理空间中的尺度特征与人文地理特征的关系.选取了HT-指数测量地理对象分化程度的表征指标,并用信息熵理论对其进行检验.研究结果表明,尺度的特征一定程度上与人文地理特征是有正相关性的.可以用网格作为控制尺度的工具从不同尺度来认知人类社会活动的空间分布模式.Widely applied location aware devices,including mobile phones and GPS receivers,have provided great convenience for collecting large volume individuals' geographical information.The researches on the human's society behavior space has attracts an increasingly number of researchers.In our research,based on location-based Flickr data From 2004 to May,2014 in China,we choose five levels of spatial grids to form the multi-scale frame for investigate the correlation between the scale and the geospatial cognition on human's social activity space.The HT-index is selected as the fractal inspired by Alexander to estimate the maturity of the society activity on different scales.The results indicate that that the scale characteristics are related to the spatial cognition to a certain extent.It is favorable to use the spatial grid as a tool to control scales for geo-spatial cognition on human's social activity space.高分辨率对地观测系统国家重大专项; 测绘地理信息公益性行业科研专项(201512020)National Major Projects on High-Resolution Earth Observation System; Surveying and Mapping Geographic Information Public Welfare Industry Scientific Research Project中文核心期刊要目总览(PKU)中国科技核心期刊(ISTIC)z185-894