Structural Characteristics and Carbon Storage Estimation of Road Forest in Urban Core Area of Tai'an City
Plot investigation is conducted for three road forests in the urban core area of Tai'an City,and the species diversity index and average biomass model are used to analyze their structural characteristics and carbon storage.The results show that there are 12 species of trees belonging to 11 genera and 8 families in the study area,with the average DBH at 15.49 cm,and road forests in Tai'an City have simple and homogeneous vegetation composition,with a low plant diversity.The carbon density of 37 sample areas varies between 0.53 and 6.59 kg·m-2,and the majority of the sample areas,accounting for 75.68%of the total transect,have the carbon density less than 3.00 kg·m-2.The average carbon density of coniferous and broad-leaved mixed forest is the highest among different types of road forest community.The carbon density of road forest has significant positive correlation with DBH and chest height section area per unit area.In the future establishment of road forests in Tai'an,it is suggested that Tai'an City should strengthen community optimization,place an importance to species,and apply tree species with high carbon sink so as to give full play to the carbon sink effect of road forest.
urban road foreststructure characteristicscarbon storagecarbon sinkTai'an City