EVALUATION AND EXAMINATION OF MEASURES TOWARD PROMOTING PLANTING GREEN AT DETACHED HOUSES

Abstract

 Heat island phenomena which is one of presentative urban environmental issue has been worsen by developing urban area under high economic growth period in Japan. In order to mitigate this phenomena, green planting has been promoted. However, construction area of planting green on rooftop and wall have been decreasing or steady recently. But, the reason of this trend has not been understood clearly. The aim of this study is to promote green planting of detached houses. Firstly, we carried out the Web questionnaire survey targeted to Nagoya city of Aichi prefecture. Through this survey, we acquired information of required conditions for planting green, such as construction area, types of planting tree or green and so on. Secondly, we estimated the possible amount of WTP (willing to pay) for construction of planting green. Finally, we evaluated and examined whether the grants of planting green are efficient for promoting green planting or not.