基于GIS的中国气温空间分布与分区初探

利用空间统计分析方法对中国1950年~1999年50年的年平均和季平均气温格点数据进行空间自相关分析,发现中国气温分布存在明显的空间集聚现象。结果表明,中国气温分布在空间上存在两个低温集聚区和一个高温集聚区,分别为东北低温集聚区、青藏高原低温集聚区和东南部近海高温集聚区,其余地区为介于高温集聚和低温集聚区之间的过渡区;而在春夏两季,塔里木盆地也形成一个高温集聚区。最后,本文对形成这种气温空间分布特征的影响因素进行了分析探讨。期望本研究对气候区划研究提供有益参考。

GIS-Based Primary Study on the Temperature Spatial Distribution and Regionalization of China

Through analyzing the spatial autocorrelationabout Chinese fifty years'(from 1950 to 1999) annual and seasonal temperature data,we found that Chinese temperature distribution obviously showed the phenomenon of spatial cluster. The Local Moran I index indicated that there two low-temperature cluster regions and one high-temperature cluster region in China.They were named Northeast low-temperature cluster region,Qinghai-Xizang Plateau low-temperature cluster region and Eastern coastwise high-temperature cluster region,respectively.Other area were called Transition regions.Besides,it formed a high-temperature cluster region in Tarim Basin in Spring and Summer.At the end,we analyzed the factors that influenced temperature spatial distribution.We expected that this research would be able to provide a beneficial reference to the climate regionalization.