| Summary: | 碩士 === 國立宜蘭大學 === 森林暨自然資源學系碩士班 === 100 === Since the Industrial Revolution the population being excessive concentration, big cities expanded continuously, lead to a large of urbanization by-products generated. The prevalence of high-rise buildings, seriously affect the city, reducing ventilation efficiency, resulting in urban heat islands. Green roofs in the world being developed vigorously, explore green roofs, tree growth, health status, expecting rehabilitation of forests, like its original scenario and function on the land, to compensate for the cement, asphalt for the environmental damage brought about by the human.
For assessing the health situations of Chinese Tallow-trees on the roof and the outdoor conditions, this study recorded on their health indicators from April 2010 to June 2012. The results show that the growth of the outdoor group is more stable than the growth of the roof group due to the environmental conditions of the roof group being worse than that of the outdoor group. Also, in 2011 splitting the roof group into two groups, with and without planting container changed, it can be found the amount of soil contained in the planter will affect the tree growth. Besides, the height growths of both groups compared with each other, due to limited by the influence of environmental factors, the tree height growth of the roof group does not increase, such a growth situation exactly in line with the needs of green roof technology.
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