湖泊科学2024，Vol.36Issue(5)：1506-1515,中插21-中插26,16.DOI:10.18307/2024.0536
青藏高原东缘溪流型小微湿地沉积物古菌群落的海拔分布格局及驱动因素
Elevational distribution pattern and driving factors of archaeal communities in the sedi-ments of small streams along the eastern Tibetan Plateau
摘要
Abstract
Small and micro wetlands including small streams are widely distributed in the source areas of rivers,which play an im-portant role in maintaining the ecosystem stability and providing ecosystem services.However,the distribution of microbial commu-nities,especially the archaeal communities,in the stream sediments along different elevations is still unclear.To supplement the theoretical framework within this field,we conducted a study in five stream type small micro wetlands of the upper Minjiang River along different altitudinal gradients(1000,1600,2000,2700 and 3200 m)by using 16S rRNA illumina sequencing technology and monitoring the physicochemical properties of the water body as well as hydrological parameters.The alpha diversity of the ar-chaeal community increased significantly with elevation,and the beta diversity varied significantly across the elevation gradient.Habitat difference was the key factor driving the altitudinal distribution pattern of archaeal communities in the stream type small mi-cro wetlands sediments of the upper Minjiang River.Redundancy analysis confirmed that dissolved total nitrogen,total nitrogen,dissolved total phosphorus and pH were the main physical and chemical factors affecting the archaeal community structure,and tur-bidity and water depth were the main hydrological factors affecting the archaeal community structure.In conclusion,this study showed that hydrological factors and water body physicochemical properties jointly regulate the altitudinal distribution pattern of stream type small micro wetlands archaeal communities.This study provides a scientific basis for understanding the biogeographic distribution of the altitudinal distribution of natural small micro wetland archaeal communities in the Tibetan Plateau.关键词
古菌/群落组成/多样性/水体理化性质/水文Key words
Archaea/community composition/diversity/physical and chemical properties of water body/hydrology引用本文复制引用
郭云,何奕忻,仲波,李娜英,李贤祥,张慧,杨早,蒋海波,王晓锋,杨刚..青藏高原东缘溪流型小微湿地沉积物古菌群落的海拔分布格局及驱动因素[J].湖泊科学,2024,36(5):1506-1515,中插21-中插26,16.基金项目
国家自然科学基金项目(32271676,42077038)和中国博士后科学基金项目(2023M733439)联合资助. （32271676,42077038）
