Keywords |
linear greenspace ; multi-layer planting ; evapotranspiration effects |
Abstract |
The purpose of this study is to demonstrate the positive effects of linear greenspace on the reduction of carbon dioxide (CO2) which can help improve ecological functions in cities and mitigation of climate change, through quantifying CO2 uptake and evaportranspiration of some plants. Experiment for CO2 uptake and evaportranspiration of 7 plants was conducted by measurement of CO2 exchange rate for 7 month, growing season from May to November 2009. The result was as follows; The CO2 uptake quantity per cm2 of Trachelospermum asiaticum was the highest rate at 7.049 × 10?6 g/cm2 and Hydrangea serrata of the shrubs was 5.369 × 10?6 g/cm2. The stronger was light of intensity, the higher were CO2uptake rate of most plants. In quantity of evaportranspiration, Hydrangea serrata was the highest rate at 3.414 × 10?5 g/cm2 and Euonymus fortunei was 3.650 × 10?5g/cm2. From this study, it is confirmed that Shrubs and vines composed urban linear greenspace has capacity of absorption CO2 and effects on improving urban microclimate. |