Scale-Variance(階層分散)の農業地理学への応用

概要

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Scale-variance components have been calculated for the following four variables of the Agricultural Census for Hokkaido District: (a) number of farm households having over 20 hectares of farmland, (b) number of fishery households, (c) acrage of paddy field used entirely for crops other than rice during the last one year (1970), (d) same item as (c) for 1980. The hierarchy of Hokkaido is generally organized into 4 scale levels: 7177 Nogyo-Shuraku (or rural community), 218 Shi-Cho-Son (or municipality), 14 Shicho (or province), and the district as a whole. As is seen in the table, the largest scale variation for variable (a) takes place on level 1, or provincial level, whereas it takes place on level 2, or municipal level, for variable (b). Scale variations for variable (d) are generally higher than those of variable (c), but the increases on levels 1 and 2 are particularly evident. This fact is regarded as closely related to the prevalence by 1980 of the government's regulation of rice production.The present method, which was first presented by H. Moellering and W. Tobler in 1972, has been proved to be a useful tool for the examination of geographical scale problems.
東北地理学会の論文