The research of carbon absorbing ability of road greening plants in North China

The CO₂ emission of transportation is continuously increasing these years. Authorized data proves that in 2007, the CO₂ emission of China transportation industry accounts for about 70% of the total amount. Widely planting high carbon sink plants within the scope of roads land is an important part of low carbon roads. Considering the daily carbon absorbing ability of one unit greenbelt area together with the viability of greening plants, the carbon absorbing ability of 33 kinds widely cultivated greening plants in north china were studied and 17 of them were selected as the ideal ones to be grown within the low-carbon road scope. Furthermore, a road carbon absorption evaluation model was established by setting the biomass, seasons ect. as the basic factors. At the last, a greening design example for low carbon roads was given. The achievement of the paper has build foundation for low carbon roads.