生态学报2026，Vol.46Issue(4)：1840-1852,13.DOI:10.20103/j.stxb.202505201245
鸭绿江口邻近海域不同功能区底栖生态质量差异评估
Assessment of differences in benthic ecological quality of different functional zones in the sea area adjacent to the Yalujiang Estuary
摘要
Abstract
To achieve the coordinated development of rational marine resource allocation and environmental protection,marine functional zoning divides coastal areas into different functional zones,resulting in varying levels of human activity pressure across these zones.Scientific assessment of ecological quality differences among different marine functional zones is essential for the sustainable utilization of marine spatial resources.The study conducted a survey on the macrobenthos communities in the port zone,marine protection zone,fishery zone,and shipping zone of the sea area adjacent to the Yalujiang Estuary from 2020 to 2022.Based on the taxonomic and functional traits of macrobenthos,an ecological quality assessment system for the Benthic Index of Biotic Integrity(B-IBI)was constructed.A total of 139 macrobenthos species were identified,including 63 annelids,39 arthropods,22 mollusks,6 echinoderms,3 chordates,and 6 species of other taxa.The taxonomic and functional traits of macrobenthos exhibit differences among different marine functional zones.The port zone mainly exhibited community characteristics of tolerant taxa,including a higher proportion of polychaetes,second order opportunistic species,deposit feeders and tube dwellers.The marine protection,fishery,and shipping zones exhibited characteristics of communities dominated by sensitive taxa,including high proportions of mollusks,small and medium sized species,plankton feeders,free living species,and swimmers.From 41 candidate indicators based on taxonomic and functional traits,six core indicators were selected through distribution range analysis,discriminative capacity evaluation,and redundancy assessment for B-IBI model construction.The assessment results showed that the overall ecological quality of the sea area adjacent to the Yalujiang Estuary was good and showed a trend of increasing from the port zone to other marine functional zones.Except for the port zone,which exhibited poor ecological quality,the marine protection,fishery,and shipping zones all maintained good ecological quality,suggesting that the port zone may be under stress from human activities such as land-based pollution and port operations.Correlation analysis showed that B-IBI was significantly negatively correlated with pollution factors such as NO3--N,NH4+-N,PO43--P,and Hg,suggesting that it reflected the impacts of riverine input and aquaculture sewage discharge on the estuary's ecological quality.This study confirmed the effectiveness of B-IBI in assessing the ecological quality of different marine functional zones in the Yalujiang Estuary.It effectively reflected the differences in ecological quality among marine functional zones under the stress of pollutants,thus providing a basis for the assessment of marine functional zoning.关键词
鸭绿江口/底栖完整性指数/种类多样性/功能性状/海洋功能区Key words
Yalujiang Estuary/benthic index of biotic integrity/species diversity/functional traits/marine functional zone引用本文复制引用
李文,孙艺,房雪枫,王立俊,李宏俊..鸭绿江口邻近海域不同功能区底栖生态质量差异评估[J].生态学报,2026,46(4):1840-1852,13.基金项目
鸭绿江口生态系统健康监测业务化项目(2024-J-05) （2024-J-05）
