Quantitative Analysis on the Characteristics of Intake Water of Agricultural Water Use Operated under Traditional Water Right in Kyushu, Japan

摘要

The objective of this study is to analyze the primary factors affecting the actual intake water of agricultural water use from water facility. The study was conducted on 19 locations of water user association called Land Improvement District (L.I.D), which were operated under traditional water right in Kyushu Island, Japan during irrigation period. Quantitative analysis I, developed by Hayashi, was applied for the analysis. The explanatory variables consisted of 6 items and 18 categories. Each explanatory variable (item and category) was given as dummy variable such as one or zero. Results showed that the intake water was affected by the location of beneficiary area, the intake water for another purposes and the size of beneficiary area. The intake water varied to the concerning LID. The observed intake water changed from 26.1mm /d to 212 mm/d and the predicted intake water ranged from 24.5 mm/d to 210.5 mm/d. The results obtained were significance to explain the characteristics of the factors affecting the actual intake water of agricultural water use in those areas.