生态与农村环境学报2026，Vol.42Issue(1)：69-77,9.DOI:10.19741/j.issn.1673-4831.2024.0951
华东地区6种常见低洼滩地绿化树种的固碳释氧功能研究
Study on Carbon Fixation and Oxygen Release Capacity of Six Typical Tree Species for Low-lying Land Greening in Eastern China
摘要
Abstract
From June to August,the daily changes in net photosynthetic rate,leaf area index and crown width of six typi-cal greening tree species in low-lying land in eastern China were measured.Their daily carbon sequestration and oxygen release capacity were then analyzed.The results show that in summer,the diurnal changes in net photo-synthetic rates of the six tree species were mainly unimodal and bimodal,and all exhibited the phenomenon of'photosynthetic midday rest'in June and July.The leaf area index of Taxodium hybrid'Zhongshanshan 302'was 3.12,which was significantly higher than that of other tree species(P＜0.05).The crown widths of Bischofia polycarpa and Triadica sebifera were significantly higher(P＜0.05)than those of other tree species.Additionally,the average daily carbon sequestration and oxygen release per unit leaf area of Pinus elliottii.were 4.81 and 3.50 g·m-2·d-1,respectively,which were significantly higher than those of B.polycarpa and Metasequoia glyptostroboides(P＜0.05).In the case of the average daily carbon sequestration and oxygen release per unit land area,they were significantly greater in T.hybrid'Zhongshanshan 302'than those in other species,with values of 11.55 and 8.40 g·m-2·d-1,respectively(P＜0.05).However,M.glyptostroboides had the lowest values of 2.58 and 1.88 g·d-1,respectively.T.sebifera had the highest whole plant carbon fixation and oxy-gen release with values of 665.89 and 484.28 g·d-1,respectively,while B.polycarpa(Salix babylonica)and T.hybrid'Zhongshanshan 302'in the middle and M.glyptostroboides being the lowest.Therefore,among all tested tree species,T.hybrid'Zhongshanshan 302'and T.sebifera had greater capacity of carbon fixation and oxygen release.They could be used for ecological protection and carbon sequestration in low-lying land in eastern China,enhancing the comprehensive service function of the ecosystem.关键词
低洼滩地/光合作用/绿化植物/固碳释氧/聚类分析Key words
low-lying land/photosynthesis/greening plants/carbon fixation and oxygen production/cluster analysis分类
农业科技引用本文复制引用
赵天雅,王心童,张祯,刘昱辉,於朝广,华建峰..华东地区6种常见低洼滩地绿化树种的固碳释氧功能研究[J].生态与农村环境学报,2026,42(1):69-77,9.基金项目
江苏省现代农业—碳达峰碳中和科技创新专项资金项目(BE2022420) （BE2022420）
国家自然科学基金(32101490) （32101490）
