Human activity over natural inputs determines the bacterial community in an ice core from the Muztag ata glacier

作     者：Yongqin LIU Nianzhi JIAO Mukan JI Keshao LIU Baiqing XU Bixi GUO Tandong YAO 

作者机构：State Key Laboratory of Tibetan Plateau Earth SystemResources and Environment(TPESRE)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China Center for Pan-third Pole EnvironmentLanzhou UniversityLanzhou 730013China University of Chinese Academy of SciencesBeijing 100101China State Key Laboratory for Marine Environmental ScienceXiamen UniversityXiamen 361102China 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2024年第67卷第5期

页      面：1489-1499页

核心收录：

学科分类：0710[理学-生物学] 1007[医学-药学(可授医学、理学学位)] 100705[医学-微生物与生化药学] 07[理学] 0705[理学-地理学] 070501[理学-自然地理学] 071005[理学-微生物学] 10[医学] 

基　　金：supported by the National Key Research and Development Plans(Grant No.2021YFC2300904) the National Natural Science Foundation of China(Grant Nos.U21A20176 and 42330410) the Second Tibetan Plateau Scientific Expedition and Research Program(STEP)(Grant No.2019QZKK0503) 

主　　题：Ice core of Muztag ata glacier Climate change and anthropogenic activity Biological indicator Gut-associated bacteria livestock number in the Central Asian region 

摘      要：Ice core provides a valuable vertical timeline of past climates and anthropogenic *** proxies have been widely used in these studies,but there are few biological indicators *** address this gap,we investigated the bacterial community from a 74 m ice core of Muztag ata glacier on the Tibetan Plateau to link biological indicators with past climate and anthropogenic *** analyzing the portion of the ice core with environmental proxies available(corresponding to 1907 to 1991),we observed an increase in bacterial richness throughout the ice core,which was associated with higher NH_(4)^(+),an indicator of agricultural *** bacterial community was jointly determined by human activity,natural input,and air temperature,with a strong human influence after the ***,the relative abundance of animal gut-associated bacteria,including Aerococcaceae,Nocardiaceae,Muribaculaceae,and Lachnospiraceae,was associated with livestock number changes in the Central Asian *** with other bacterial lineages,they jointly explained 59.8%of the livestock number *** study provides quantitative evidence of the associations between bacterial indicators and past climate and human activities,highlighting the potential of using bacterial proxies for ice core studies.