Study On Carbon Sequestration Efficiency Of Urban Landscaping Plants

Taking Hohhot five typical park that genghis khan park,qingcheng mountain park,park,Ocean Park,xinhua park full of sample area of the measured data,and zhao wuda,wulanchabu west street,east shadow south road survey based on the experimental data,combined with the literature summary,using biomass relative growth equation method,studied the Hohhot landscape plant biomass,carbon and arbors and organ biomass and carbon distribution characteristics,reveals the carbon efficiency of Hohhot landscaping plants,to our country northwest city gardening plant carbon sequestration benefits research has certain theoretical and practical significance.The following results were obtained:1.Carbon sequestration efficiency of five typical garden greening plants in urban areas of Hohhot(1)The biomass of five typical parks in Hohhot was ranked from large to small with Genghis Khan Park 9913.42t>Xilin Park 2737.61 t>Qingcheng Park 1899.78 t>Xinhua Park 846.87 t>Mandukhai Khatun Park 702.84t in descending order of biomass,with Genghis Khan Park having the highest biomass of 9,913.42 t and Mandukhai Khatun Park having the lowest biomass of 702.84 t.(2)The carbon reserves of five typical parks in Hohhot are ranked from large to small are in the order of genghis khan park>qingcheng park>xilin park>manduhai park>xinhua park,among which the carbon reserves of genghis khan park are the highest at 4401.04t,and manduhai park is the lowest at 313.30t.(3)Among the four plant types,broad-leaf arbor carbon reserves>coniferous arbor carbon reserves>turf cover plant carbon reserves>shrub carbon reserves,broad-leaf arbor carbon reserves of the highest is 4643.89t,accounting for 65%of the total carbon reserves,shrub carbon reserves of the lowest is 153.72t,accounting for 2%of the total carbon reserves.(4)Among the carbon reserves of the organs of trees and shrubs in each park,the carbon reserves of tree trunks are>the carbon reserves of tree roots are>the carbon reserves of tree branches are>and the carbon reserves of tree trunks are 2348.10t,accounting for 41%of the total carbon reserves of trees and shrubs.2.The biomass and carbon reserves of urban green trees changed to some extent after the treatment of truncation and pruning,among which the biomass and carbon reserves were the highest when the trees were truncated 3-4 meters from the ground.3.Garden trees pruning,pruning branches processing,garden plant biomass and carbon has certain change,different pruning measures under mild cut carbon change>moderate pruning>not cut carbon carbon change>severely cut carbon changes,light pruning makes plant biomass and carbon increase faster,is beneficial to increase the biomass and carbon plant.4.In the park green space and road green space,the change range of carbon storage per unit area of green space vegetation in the typical sample land is 1.32Kg·m-2-3.29Kg·m-2.In the carbon storage density comparison,the road protection green space is larger than the park green space;There was no significant change in the rate of vegetation carbon uptake in different gardens.