地理学研究・教育のためのGISの課題 : GISと分析手法のリンケージ

概要

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In Japan, Many Geographers have been attempted to make GIS programs such as Nogami (1990a), Ogata (1987), Yoshimoto (1990) and so on. Today it is important for us not only to use GIS as a mere mapping system but also to make use of it by integrating with analyiical system for geographical study and education. In this paper, we report one example of such integrated system on personal computer, PC-ARC/INFO + PC-SAS. Next, we analyse the regional structure of agricultural income of Kinki area using this system. <<STATISTICAL ANALYSIS + GIS>> First, factor analysis of 15 variables is executed, and factor scores are represented by GIS. Factor I (productivity and fruit agriculture) has high score in metropolitan core area. Factor 2 (grain agriculture vs. stock raising) has high score in plains and baisns of metropolitan peripheral area. <<GIS + SPATIAL ANALYSIS>> Second, GIS produces the adjacency of each district and spatial autocor-relations (Moran statistic Is) of 15 variables are calculated. The distributions of variables such as productivity and grain percentage have tendency of clustering, so Moran statistic Is of these variables have high values. The integration of GIS and analytical system will provide not only a tool of mapping but also a tool of our thinking about geographical problems, because it helps to connect the processes of mapping and analysis mutually in our studies.
1991-10-28