文献类型：期刊文献

中文题名：吉林莫莫格国家级自然保护区四种典型植物群落下土壤微生物组成的对比分析

英文题名：Comparative analysis of soil microbial composition of four typical plant communities in Momoge National Nature Reserve,Jilin Province

作者：刘炜璇[1,2] 李依蒙[3] 江红星[1] 王毅花[1] 陈丽霞[1] 王莹[1]

第一作者：刘炜璇

机构：[1]中国林业科学研究院森林生态环境与自然保护研究所,生物多样性保护国家林业和草原局重点实验室,北京100091;[2]衡水市人大常委会办公室,河北衡水053000;[3]国家自然博物馆生命科学部,北京100050

年份：2024

卷号：43

期号：10

起止页码：2988-2998

中文期刊名：生态学杂志

外文期刊名：Chinese Journal of Ecology

收录：CSTPCD;;Scopus;北大核心:【北大核心2023】；CSCD:【CSCD2023_2024】；

基金：“十三五”国家重点研发计划项目(2016YFC0500404);中美白鹤东部迁徙种群保护项目资助。

语种：中文

中文关键词：莫莫格国家级自然保护区;植物群落;土壤微生物;土壤理化指标

外文关键词：Momoge National Nature Reserve;vegetation community;soil microorganism;soil physicochemical index

分类号：S714

摘要：土壤微生物作为湿地生态系统中重要成分之一,是动植物残体分解的主要驱动力,在养分循环及改善土壤理化性质中起着重要作用。为探明吉林莫莫格国家级自然保护区湿地土壤微生物的组成特征,选取碱蓬、扁秆藨草、三江藨草和芦苇等4种典型湿地植物群落下的土壤进行微生物群落及理化特征分析。16S rRNA和ITS全长高通量测序结果表明,变形菌门是4种植物群落土壤中相对丰度最高的细菌门类,子囊菌门是4种植物群落土壤中相对丰度最高的真菌门类。Alpha多样性结果显示,两种藨草群落土壤细菌的丰富度和多样性最高,而土壤真菌丰富度在三江藨草群落中最高,真菌多样性在4种群落之间差异不显著。LEfSe分析显示,扁秆藨草群落土壤中拟杆菌目、梭菌纲、梭菌目、链格孢属等的相对丰度显著高于它们在其他3种群落土壤中的相对丰度,而三江藨草群落土壤中,变形菌门、酸杆菌门、罗兹菌门、假单胞菌属、环柄菇属等的相对丰度显著高于它们在其他3种群落土壤中的相对丰度。土壤细菌群落组成和多样性受土壤pH值、电导率、有机碳等影响较大。研究结果为莫莫格保护区湿地生态功能的维持与土壤微生物群落结构的改善提供参考依据。
As one of the important components of wetland ecosystems,soil microorganisms are the main driving force of decomposition of animal and plant residues,playing an important role in nutrient cycling and maintaining soil physicochemical properties.To explore the composition of soil microorganisms in the wetland of Momoge National Nature Reserve in Jilin Province,soil microbial communities and soil physicochemical properties were analyzed under four typical wetland plant communities,which were dominated by Suaeda glauca,Scirpus planiculmis,Scirpus nipponicus,and Phragmites australis,respectively.The results of 16S rRNA and ITS full-length sequencing showed that Proteobacteria was the most abundant bacterial phylum in the soils of all the four plant communities,while Ascomycota was the most abundant fungal phylum.Richness and diversity of soil bacteria were the highest in the two Scirpus-dominated communities,while soil fungi richness was the highest in S.nipponicus community.However,there was no significant difference in soil fungi diversity among the four plant communities.LEfSe analysis showed that the relative abundance of Bacteroidales,Clostridia,Clostridiales,and Alternaria in the soil of S.planiculmis community was significantly higher than that in the other three plant communities.The relative abundance of Proteobacteria,Acidobacteria,Rozellomycota,Pseudomonas,and Lepiota in the soil of S.nipponicus community was significantly higher than that of the other three plant communities.The composition and diversity of soil bacterial communities were greatly affected by soil pH,electrical conductivity,and organic carbon concentration.Our results provide reference for the maintenance of wetland ecological functions and the improvement of soil microbial community structure in Momoge National Nature Reserve.