Evaluation of growth characteristics of model retaining wall greenery using 4 species
-Influence of weather factors on their growth after 3 years-

Abstract

This study evaluated the growth of two kinds of trees(Buxus microphylla Sieb. et Zucc. and Juniperus chinensis L. var. procumbens Endl.) in four cold experiment areas and two kinds of trees(Rhaphiolepis umbellata Makino and Pittosporum tobira Aiton) in six warm experiment areas produced from same maternal tree in the same place, were planted in model retainning wall which a soil improvement condition is different. As a result, It became clear that growth of each kinds of trees were correlated with the weather factor of warmth index and highest temperature, were restrained due to snowfall and the fluctuation in the soil water by influence of solar radiation.Moreover, soil improvement increased the correlations and was showing good growth in the same experiment area.