earticle

영어

Low-carbon landscape architecture requires proper design and construction to enhance carbon sequestration through greenspace enlargement and to reduce carbon emissions through fossil fuel saving. This study reviewed the growth and development of low-carbon landscape design over time in Korea and explored essential issues and tasks of the field for the future. A quantitative research on low-carbon urban landscape was started from the middle of the 1990s. The initial research quantified a role of urban greenspace in sequestering and storing atmospheric carbon. In the late 1990s, a few studies estimated effects of tree planting on heating and cooling energy savings and explored low-carbon planting design around buildings. A research on urban greenspace management was conducted at that time to quantify energy consumption and carbon release from mowing, pruning, irrigation, and fertilization. The studies about carbon sequestration by urban landscape trees in the initial stage applied biomass equations from forest trees. In the 2010s, quantitative models to estimate carbon sequestration of urban landscape trees were developed through a direct havesting method. The models found out a significant difference from carbon sequestration of forest trees and contributed to ensuring the reliability of carbon estimates for urban open-grown trees. A research work in the middle 2010s estimated carbon emissions from manufacture of wood landscape facilities including pergola, bench, and deck. However, there are still few design and construction practices regarding carbon sequestration and reduction in Korea. Future essential tasks for carbon sequestration in the field of landscape architecture require establishment of greenspace supply indicator to offset carbon emissions, carbon input into and output from urban soils, carbon emissions from greenspace management, and design criteria for greenspace types. The tasks for energy saving and carbon reduction include low-carbon eco-design and construction of landscape facilities, landscape material and resource recycling, and low-carbon spatial and road design.