Employing a Centroid Transferring Curve to Spatio-temporal Evolution Patterns
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摘要: 探讨了一种利用重心模型进行时空演化模式定量化表达的方法,并以湖南省1983～1992年疟疾发病空间分布数据为例,通过计算每年度疟疾重心坐标,生成疟疾重心转移曲线,定量地表达湖南省疟疾的时空演化过程。将此方法结果与空间自相关分析结果进行比较,发现两者基本一致。多尺度的重心转移曲线实验结果表明,此方法的尺度效应不明显。Abstract: To express the geographical phenomenon spatio-temporal evolution patterns,many methods via graphs as the result of spatial autocorrelation analysis have been proposed.However,these methods do not effectively express spatio-temporal evolution.Thus,a centroid-based method was employed to express quantitatively the spatio-temporal evolution patterns.Malaria spatial distributions data,for Hunan Province centroid coordinates are computed of every year from 1983 to 1992,as an example.Next,the spatio-temporal malaria evolution process in Hunan Province is expressed via the malaria barycenter curve,composed of these centroid coordinates.In order to verify the results,we compared the centroid-based results and the results from a common spatial autocorrelation analysis technique.The comparison showed two results are in agreement.Finally,two-scale malaria barycenter curve are computed.This experiments showed that the multi-scale effect is not so obvious.
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[1] 陈江平张兰兰,余远剑,张鹏林,. 利用空间自相关的中国内陆甲型H1N1流感疫情分析[J]. 武汉大学学报(信息科学版). 2011(11)[2] 陈翼李光强,邓敏,王佳璆,. 疟疾发病的空间格局和时空演化分析[J]. 地理信息世界. 2010(05)[3] 张德利杨犇,. 基于重心模型的江苏沿海地区经济空间演变研究[J]. 淮海工学院学报(自然科学版). 2009(02)[4] 徐映雪任志远,张文梅,. 基于GIS的陕西省耕地与人口空间变化分析[J]. 干旱地区农业研究. 2008(03)[5] 何艳芬张柏,马超群,. 吉林省耕地动态变化及其对粮食生产的影响[J]. 资源科学. 2004(04)[6] 包玉海乌兰图雅,香宝,赵晓丽,. 内蒙古耕地重心移动及其驱动因子分析[J]. 地理科学进展. 1998(04)[7] 樊杰. 中国农村工业化的经济分析及省际发展水平差异[J]. 地理学报. 1996(05)[8] 李仪俊,. 我国的人口重心及其移动轨迹[J]. 人口研究. 1983(01)
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