公園建設にともなう二酸化炭素排出量に関する研究

抄録

It was attempted to use life cycle assessment (LCA) to evaluate environmental impacts of parks in an actual new habitation district, having population of 9, 600 and an area of 162 hectares. Carbon dioxide (CO₂) emission was chosen as a global environmental impact indicator.CO₂emission from land construction works of the district was estimated as 681ton-C by using combination of the input-output analysis and the process analysis.
CO₂emission from material accounted for nearly 87% of the total CO₂emission from the park construction works. Cement, concrete brick, and fresh concrete were major contributors to this fraction. CO₂emission per area of block parks was estimated as 8.8kg-C/m². CO₂emission in the construction and operating and maintenance stage was estimated 2539ton-C assuming 30-year period of use. In order to reduce CO₂emission from the park, it is important to choice low CO₂emission material and design, satisfying same activities.