Study on the features and problems of quantitative leading guidelines for urban greening of local government ordinances

Abstract

This study aimed to discuss appropriate urban greening of private land through the examination of quantitative leading guidelines for greening of local government code. By collecting descriptions on urban greening of ordinances, and comparative analysis using them, it was revealed that 27.7% of prefectures and 75% of ordinance-designated cities had quantitative leading guidelines for greening. Most of them were affected by Factory Location Act and Conservation of Urban Greenery Act, and the rest of them were affected by Landscape Act or global warming countermeasure. Green cover ratio was used in the codes, but there were variety of the way to calculate the ratio. By classification of them, they were proved to be consisted from six main rules. Based on the results of the analysis, the problems and how to develop new guidelines by controlling details of the six rules were discussed.