干旱区生态环境知识资源中心(Arid): Salinity-Linked Denitrification Potential in Endorheic Lake Bosten (China) and Its Sensitivity to Climate Change

Arid

DOI	10.3389/fmicb.2022.922546
	Salinity-Linked Denitrification Potential in Endorheic Lake Bosten (China) and Its Sensitivity to Climate Change
	Jiang, Xingyu; Liu, Changqing; Hu, Yang; Shao, Keqiang; Tang, Xiangming; Gao, Guang; Qin, Boqiang
通讯作者	Gao, G
来源期刊	FRONTIERS IN MICROBIOLOGY
EISSN	1664-302X
出版年	2022
卷号	13
英文摘要	Endorheic lakes in arid regions of Northwest China are generally vulnerable and sensitive to accelerated climate change and extensive human activities. Therefore, a better understanding of the self-purification capacity of ecosystems, such as denitrification, is necessary to effectively protect these water resources. In the present study, we measured unamended and amended denitrification rates of Lake Bosten by adding the ambient and extra nitrate isotopes in slurry incubations. Meanwhile, we investigated the abundances and community structure of nitrous oxide-reducing microorganisms using qPCR and high-throughput sequencing, respectively, in the surface sediments of Lake Bosten to study denitrification potential in endorheic lakes of arid regions as well as the response of those denitrifiers to climatically induced changes in lake environments. Amended denitrification rates increased by one order of magnitude compared to unamended rates in Lake Bosten. The great discrepancy between unamended and amended rates was attributed to low nitrate availability, indicating that Lake Bosten is not operating at maximum capacity of denitrification. Salinity shaped the spatial heterogeneity of denitrification potential through changes in the abundances and species diversity of denitrifiers. Climate change had a positive effect on the water quality of Lake Bosten so far, through increased runoff, decreased salinity, and enhanced denitrification. But the long-term trajectories of water quality are difficult to predict alongside future glacier shrinkage and decreased snow cover.
英文关键词	nitrate availability salinity arid region Northwest China species diversity endorheic lake
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000885883500001
WOS关键词	DISSIMILATORY NITRATE REDUCTION ; AMMONIA-OXIDIZING ARCHAEA ; DISSOLVED ORGANIC-MATTER ; FRESH-WATER ; COMMUNITY STRUCTURE ; OLIGOSALINE LAKE ; CHANGE IMPACTS ; SEDIMENTS ; NITROGEN ; BACTERIA
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392777
推荐引用方式 GB/T 7714	Jiang, Xingyu,Liu, Changqing,Hu, Yang,et al. Salinity-Linked Denitrification Potential in Endorheic Lake Bosten (China) and Its Sensitivity to Climate Change[J],2022,13.
APA	Jiang, Xingyu.,Liu, Changqing.,Hu, Yang.,Shao, Keqiang.,Tang, Xiangming.,...&Qin, Boqiang.(2022).Salinity-Linked Denitrification Potential in Endorheic Lake Bosten (China) and Its Sensitivity to Climate Change.FRONTIERS IN MICROBIOLOGY,13.
MLA	Jiang, Xingyu,et al."Salinity-Linked Denitrification Potential in Endorheic Lake Bosten (China) and Its Sensitivity to Climate Change".FRONTIERS IN MICROBIOLOGY 13(2022).