近10年京津地区GDP增长与分布的时空演化分析

Spatial-temporal Evolvement of Distribution of GDP in Beijing-Tianjin Area in Recent Ten Years

在ArcGIS9.0支持下,采用普通克里格插值法研究京津地区GDP的时空分布规律,结果表明:①在主城区点效应和主干道交通的廊道效应作用下,该区的GDP分布趋势是以北京和天津的中心城区为高GDP分布区域,并沿主要交通动脉由中心区向周围地区呈梯度递减变化,在两城市间沿京津交通廊道形成了一个GDP持续增长和密集分布的廊道区域.②随着时间推移,交通条件的进一步改善,两者间空间相互作用的不断增强,京津间经济走廊的形成将成为空间发展的必然趋势.

With the support of ArcGIS 9.0, this paper analyses the GDP spatial characteristics through the Ordinary Kriging methods. Because of the main city-region point effect and main traffic roads corridor effect, the result shows that the region＇s GDP distribution tendency is as follows： Beijing and Tianjin＇s main city-region is the agglomerative area with a high GDP density and it spreads to the neighborhood area while the density is decreasing during the process, a growing and higher GDP corridor region is formed between the two cities;With the time goes on, the traffic conditions will be further improved, and the spatial interaction between them continues to increase. The formation of the Beijing-Tianjin economic corridor will become an inevitable trend in the spatial development.