Creation of the sustainable urban green-spaces for an improvement of the local heat environment based on statistical analyses between vegetation-landscapes and thermal data

: For the purpose of analyzing the relation between urban green-spaces and thermal environments, the data of a past graduation thesis performed at the “ Grand-Mall ” in the Minatomirai-21 area of Yokohama City were reviewed. Various thermal indicators and/or effect-indices, both of which would be concerned with the local heat environment, were newly quantified in this report. And streets and parks in the Grand-Mall were distinguished into six vegetation-landscape types as the principal unit with the revision of the previous classification. These units were divided into five main groups by combination of 11 landscape-zones in accordance with the significant correlations proved by means of the statistical analyses using various thermal data obtained in this study. Based on those results, authors have considered about the differences of the thermal effects that were caused by the qualitative and quantitative variations of constituent elements in each landscape-zone group. Moreover, some of creation methods of the sustainable urban green-spaces using the tree species which are suitable for the habitat there and can expect the improvement of the local heat environment were proposed.