CROP-COMBINATION REGIONS FOR 1960 AND 1970 IN KINKI PROVINCE
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概要
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This is a study of crop-combination regions for 1960 and 1970 in Kinki Province. Since J. C. Weaver applied the deviation method to the Middle West data, there have appeared many studies on crop-combination regions. In Japan Doi modified Weaver's formula to the following expression, Si=∑=d2i, and proceeded to delineate industrial regions in Japan using the expression. Birukawa and others surveyed crop-combination regions in Japan with Doi's method. In this paper, Doi's method is also employed to analyze the data on the harvested acreage for the former administrative units, cities, towns, and villages (shi, cho, and son), which existed before administrative combination. A crop-combination implies a crop rotation system in the context of agricultural regions of European origins. Accordingly certain problems might arise when we adopt Weaver's method for an agricultural regionalization in Japan, where few crop rotation systemes found. However, the method has a merit to the extent that principal crops can be selected objectively. During the period 1960 to 1970, the number of crops in Kinki Province decreased from 1.98 to 1.27. The number of crop-combination types also decreased from 108 to 59. On the basis of the first and second ranking crops in each adminstrative units, we found eight principal crop-combination types in the Province, "Rice", "Rice and Wheat-Barley", "Only Rice and Wheat-Barley", "Rice and Industrial Crops", "Rice and Vegetables", "Rice and Fruits", "Vegetables", and "Fruits". We can say that rice is still the key crop in the Province. But great changes took place in the crop-combination types and the spatial pattern of the combination types during the period. The combination type 'Rice' expanded in all the prefectures in the Province, while "Rice and Wheat-Barley" type diminished drastically. The combination types 'Rice and Vegetables' and 'Rice and Fruits' expanded. The combination type 'Vegetables', producing mainly onion, expanded in the southwestern part of Osaka Prefecture. The combination type 'Fruits', producing mainly mandarin orange, expanded in the seashore districts and the Kino River basin in Wakayama Prefecture. The examination of the crop-combinations in Kinki Province reveals a distinct trend toward simplification. The number of crops, the number of crop-combination types, and the complexity in the spatial distribution of the combination types symultaneously decreased. The simplification trend reflects the rapid shift from double cropping to single cropping in the majority of paddy fields, i.e., the abandonment of second crops in those paddy fields and the less intensive use of the paddy.
- The Association of Japanese Geographersの論文
The Association of Japanese Geographers | 論文
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