广西科学2026，Vol.33Issue(2)：315-323,9.DOI:10.13656/j.cnki.gxkx.20251229.002
廉州湾贝克喜盐草海草床夏季温室气体通量及其影响因素
Greenhouse Gases Fluxes in Summer and Their Influencing Fac-tors at Halophila beccarii Seagrass Bed in Lianzhou Bay
摘要
Abstract
To explore the regulatory effect of intertidal seagrass bed on climate change,this study employed the static chamber technique to measure the fluxes of three greenhouse gases(CO2,CH4,and N2O)within Halophila beccarii seagrass bed and an adjacent unvegetated intertidal bare flat,and tested their relationships with seagrass vegetation parameters and soil parameters.The results showed that both N2O and CH4 fluxes were comparable between the two sites.While the CO2 flux was related to the light condition,the seagrass bed showed a stronger CO2 sink or source under light or dark conditions than the bare flat.Seagrass shoot density,leaf density,and biomass showed stronger influences on greenhouse gas fluxes than soil parameters,and these seagrass vegetation parameters had significantly positive correlations with the dark flux of CO2.The global warming potential of the greenhouse gas fluxes was-55.67 and-17.30 mg CO2e·m-2·h-1 at the seagrass bed and bare flat,respectively.Overall,seagrass vegetation is the main factor affecting the CO2 flux at the seagrass bed and atmosphere interface,and further affects the intensity of seagrass beds in mitiga-ting atmospheric warming effects.关键词
潮间带/蓝碳/二氧化碳/甲烷/氧化亚氮/全球增温潜势Key words
intertidal zone/blue carbon/carbon dioxide/methane/nitrous oxide/global warming potential分类
资源环境引用本文复制引用
吴书沨,郑鹏翔,王静,陈顺洋,范敏,陈家辉,陈光程..廉州湾贝克喜盐草海草床夏季温室气体通量及其影响因素[J].广西科学,2026,33(2):315-323,9.基金项目
科技基础资源调查专项(2023FY100804)和自然资源部第三海洋研究所基本科研业务费资助项目(海三科2020017)资助. （2023FY100804）
