ソウル市における人口密度の地域傾向面分析
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概要
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This study is concerned with the trend-surface analysis about the population density of Seoul city in 1977.For the analysis, 276 hexagonal grids of which the perimers are 1km are overlapped on the study area and the central points of the hexagons are dealt with as the data points.The conclusion is as follows:(1) A hexagonal grid is the most rational grid than any other grids.(2) The land use pattern is reflected on the expected population density and that is also reflected on the functional structure of the city.(3) The distribution pattern of the expected population density is produced as the concentric zone (except 1st degree trend-surface).(4) In the case of 6th order trend-surface analysis of Seoul city, the expected population density is consisted of the two main parts. One is the central major maximum ridge of which the core district is Myeongryun·Hyehwa·Ihwa·Samsun·Changsin-Dong, and the other is Kuro-Dong manufacturing estate district.(5) The coefficient of determination of 6th order trend-surface analysis is 67.9%. The most significant thing is that the residuals were converted randomly. That means that the expected population density is adequated for the actual population density.(6) The trend-surface analysis produces different consequence by the size of the testing area; to test the urban part versus the urban whole.(7) By the 6th order trend-surface analysis of Seoul city, CBD is posited at the descending ridge of the central major expected population density mountain.(8) In the case of Seoul city about the increment of the goodness-of-fit of the trend-surface analysis, the even-number degrees are fitted better than the odd-number degrees.
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