气候变化领域集成服务门户(CCPortal): Soil phosphorus accumulation in mountainous alpine grassland contributes to positive climate change feedback via nitrifier and denitrifier community

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DOI	10.1016/j.scitotenv.2021.150032
	Soil phosphorus accumulation in mountainous alpine grassland contributes to positive climate change feedback via nitrifier and denitrifier community
	Zhou, Hanchang; Ma, Anzhou; Zhou, Xiaorong; Chen, Xianke; Zhang, Jiejie; Gen, Pengxue; Liu, Guohua; Wang, Shijing; Zhuang, Guoqiang
通讯作者	Ma, AZ (通讯作者)，Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China.
发表日期	2022
ISSN	0048-9697
EISSN	1879-1026
卷号	804
英文摘要	Mountainous alpine ecosystems are sensitive to global change, where soil nutrient content would potentially vary under current climate change background, and thus possibly influence the activity of nitriliers and denitrifiers, as well as N2O emissions. However, within mountainous alpine ecosystems, the potential variation of soil nutrients under current global change and the consequence to N2O emission from nitrification and denitrification are still unclarified, hampering a comprehensive understanding of the feedback mechanisms between the nitrogen cycle and climate change. In order to fill this knowledge gap, we selected alpine grasslands at three different elevations and investigated the distribution and environmental drivers of nitrifiers and denitrifiers. The results showed that the lowest elevation site tended to have higher total phosphorus (7P) accumulation within the topsoil. The abundance of functional groups, emission of CO2 and N2O, and the N2O/ CO2 ratio showed a decreasing trend along elevation. TP was the greatest influence on denitrifier composition (nosZ/narG and nirS/nirK ratios) and considerably influenced nitrifier composition (AOA/AOB ratio), and was significantly correlated to the N2O/CO2 ratio. In microcosms of soils from the highest elevation site, TP addition decreased the ratios of nosZ/narG, nirS/nirK, and AOA/AOB, and increased N2O/CO2 ratio and N2O emission, thus contributing to positive climate change feedback. This study indicates the potential for change within the nitrifier and denitrifier communities under current climate change, and highlights the role TP plays in governing nitrification and denitrification in mountainous alpine ecosystems. (C) 2021 Elsevier B.V. All rights reserved.
关键词	N2O EMISSIONS NITROGEN MINERALIZATION FERTILIZATION STOICHIOMETRY
英文关键词	Nitrifier; Denitrifies; Phosphorus; Alpine mountainous ecosystems; Climate change
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000701855500006
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254453
作者单位	[Zhou, Hanchang; Ma, Anzhou; Zhou, Xiaorong; Chen, Xianke; Zhang, Jiejie; Gen, Pengxue; Liu, Guohua; Zhuang, Guoqiang] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China; [Zhou, Hanchang; Ma, Anzhou; Zhou, Xiaorong; Chen, Xianke; Zhang, Jiejie; Gen, Pengxue; Liu, Guohua; Zhuang, Guoqiang] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China; [Wang, Shijing] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources NIEER, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Hanchang,Ma, Anzhou,Zhou, Xiaorong,et al. Soil phosphorus accumulation in mountainous alpine grassland contributes to positive climate change feedback via nitrifier and denitrifier community[J]. 中国科学院西北生态环境资源研究院,2022,804.
APA	Zhou, Hanchang.,Ma, Anzhou.,Zhou, Xiaorong.,Chen, Xianke.,Zhang, Jiejie.,...&Zhuang, Guoqiang.(2022).Soil phosphorus accumulation in mountainous alpine grassland contributes to positive climate change feedback via nitrifier and denitrifier community.SCIENCE OF THE TOTAL ENVIRONMENT,804.
MLA	Zhou, Hanchang,et al."Soil phosphorus accumulation in mountainous alpine grassland contributes to positive climate change feedback via nitrifier and denitrifier community".SCIENCE OF THE TOTAL ENVIRONMENT 804(2022).