天津科技大学学报2026，Vol.41Issue(2)：40-47,53,9.DOI:10.13364/j.issn.1672-6510.20240238
渤海湾滨海湿地土壤线虫群落分布特征
Distribution Characteristics of Soil Nematode Communities in Coastal Wetlands of Bohai Bay
摘要
Abstract
The coastal wetlands along the western Bohai Bay hold significant ecological value,with soil nematodes serving as key bioindicators in evaluating wetland ecosystem health and restoration.This study collected soil samples from four wet-lands along the western Bohai Bay—Qilihai Wetland,National Marine Park Tidal Wetland,Longdao Tidal Wetland,and Lingang Phase Ⅱ Wetland.A total of 12,064 soil nematodes were isolated,belonging to 3 classes,7 orders,15 families,and 22 genera.The nematode community was analyzed in terms of genus composition,diversity,trophic groups,ecological in-dices,and floristic analysis.Results indicated that the nematode abundances(relative to dry soil)in the Qilihai Wetland,National Marine Park Tidal Wetland,Longdao Tidal Wetland,and Lingang Phase Ⅱ Wetland were 1,151,1,121,890,and 860 individuals per 100 g,respectively.No significant differences were observed in the total nematode abundance among these wetlands.Compared to the other wetlands,Lingang Phase Ⅱ Wetland exhibited lower abundance of bacterivorous nematodes,increased abundance of predatory and omnivorous nematodes,decreased channel index and elevated maturity index.Redundancy analysis identified soil organic carbon and moisture content as primary environmental factors influencing the nematode community.Lingang Phase Ⅱ Wetland showed characteristics of nutrient enrichment and a mature food web structure,whereas the food web structures in the other wetlands tended toward degradation.This study provides important scientific evidence for the ecological health assessment and scientific management of coastal wetlands along the western Bohai Bay.关键词
生物多样性/滨海湿地/线虫群落/代谢足迹Key words
biodiversity/coastal wetland/nematode community/metabolic footprint分类
农业科技引用本文复制引用
刘宇,李阳,赵兴贵,刘宪斌..渤海湾滨海湿地土壤线虫群落分布特征[J].天津科技大学学报,2026,41(2):40-47,53,9.基金项目
国家自然科学基金青年基金项目(4220070371) （4220070371）
中央级公益性科研院所基本科研业务费专项资金项目(TKS20240802) （TKS20240802）
