生态学报2024，Vol.44Issue(13)：5532-5541,10.DOI:10.20103/j.stxb.202309262094
上海四种常见树种单株固碳能力差异及其影响因子
Individual carbon sequestration capacity of four common tree species and their impact factors in Shanghai
摘要
Abstract
The carbon sequestration capacity of trees plays a crucial role in determining the carbon sink potential in urban green spaces.To investigate the variations in carbon sequestration capacity among tree species and their impact factors,we selected four common tree species(Cinnamomum camphora,Metasequoia glyptostroboides,Ginkgo biloba,and Cedrus deodara)in Shanghai.The individual carbon sequestration capacity of the four tree species(i.e.,annual carbon sequestration)was evaluated based on long-term observation data from 174 monitoring plots in Shanghai.We examined the influence of plant size,plant density,and environmental factors(i.e.,temperature,precipitation,and artificial light intensity at night)on the individual carbon sequestration capacity of each tree species using the multiple linear regression model.The results showed that:(1)The individual carbon sequestration capacity of C.camphora,M.glyptostroboides,G.biloba,and C.deodara was 4.01-51.58 kg/a,1.04-13.47 kg/a,0.62-18.56 kg/a,and 1.48-8.47 kg/a,respectively.The individual carbon sequestration capacity of C.camphora was significantly higher than other tree species in all groups of the diameter at breast height(DBH).(2)The plant size was the major determinant of individual carbon sequestration capacity,and the individual carbon sequestration capacity increased with the growth of plant size(within the range of 0-50 cm DBH).The individual carbon sequestration capacity of C.camphora and M.glyptostroboides decreased with the increase in plant density,while that of G.biloba positively related with plant density.(3)The temperature had a significantly negative impact on individual carbon sequestration capacity,while the impacts of precipitation and artificial light intensity at night varied among tree species.The precipitation showed a negative correlation with individual carbon sequestration capacity of C.camphora,whereas the precipitation displayed a positive correlation with that of M.glyptostroboides.The artificial light intensity at night demonstrated the positive correlation with the individual carbon sequestration capacity for C.camphora and M.glyptostroboides.Overall,we suggest that the selection of tree species should take into account both their individual carbon sequestration capacity and their sensitivity to environmental factors for future construction and management of urban forests in Shanghai.关键词
城市森林/固碳量/城市环境/长期固定监测Key words
urban forest/carbon storage/urban environment/long-term monitoring引用本文复制引用
徐嘉艺,王小玲,宋坤,张桂莲,仲启铖,韩玉洁,达良俊..上海四种常见树种单株固碳能力差异及其影响因子[J].生态学报,2024,44(13):5532-5541,10.基金项目
上海市科委"科技创新行动计划"项目(22DZ1208502) （22DZ1208502）
上海市绿化和市容管理局科研项目(G22021) （G22021）
