泥沙研究2025，Vol.50Issue(5)：66-72,49,8.DOI:10.16239/j.cnki.0468-155x.2025.05.009
生物膜-泥沙底床的侵蚀与再悬浮特性
Erosion and resuspension characteristics of biofilm-sedimentary bed
摘要
Abstract
Tidal flats are crucial for the ecological stability of coastal wetland systems,and their dynamic char-acteristics are influenced by benthic microorganisms and their biofilms.Through laboratory cultivation and ero-sion experiments,the effects of biofilms at different growth stages on the characteristics of sediment erosion and resuspension has been analyzed systematically.The results show that biofilms can enhance the erosion resist-ance of sediment,and impart a rapid recovery potential for sediment biological cohesion and thereby improving the bed stability.The presence of biofilm significantly increases the critical shear stress for sediment movement and strengthens inter-particle adhesion.Even if the biofilm structure is disrupted by erosion,its adhesive prop-erty can also be recovered swiftly through sediment settling or structural redistributing after short-duration,which is in hours-scale.关键词
泥沙抗侵/生物膜泥沙/冲刷与再悬浮/微生物作用/生物黏性恢复Key words
erosion resistance of sediment/biofilm-sediment/erosion and resuspension/microbial effects/bio-cohesion recovery分类
建筑与水利引用本文复制引用
邱垂鸿,陈欣迪,唐国涛,姚鹏,康彦彦..生物膜-泥沙底床的侵蚀与再悬浮特性[J].泥沙研究,2025,50(5):66-72,49,8.基金项目
江苏省海洋动力灾害综合防护关键技术研究(JSZRKJ202402) （JSZRKJ202402）
国家重点研发计划课题(2022YFC3106204) （2022YFC3106204）
