County-Level Economic Regionalization Based on Open DMSP-OLS DataReport as inadecuate




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Since the spatial scope at country level is very large, the natural conditions with a county are diversified, also the social and economical data is huge and dynamic at different development stages, it is costly and time consuming to do regionalization by traditional methods. With the advancement of geographical information system GIS, remote sensing, global positioning system, combined with the construction of many open web datasets, a new approach will be found to do integrated regionalization at county level. Documented literatures published by experts in China and abroad reveal that, the value of DMSP-OLS data is closely related with regional population density and economic development level. First, correlation model of DMSP-OLS data value and proportion of construction area to the total land area, population density and gross development production GDP were built up .Then the spatial dynamic of economical development was analyzed. Finally, we got 4 regionalization and development guidelines for each sub-resignations are put forward. Thus an economic approach of regionalization at country level was found.

KEYWORDS

DMSP-OLS;economic regionalization;Xixia County;geographical information system GIS

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Author: Mingyang Li, Milan Liu, Chuan Xu

Source: http://www.scirp.org/



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