干旱区生态环境知识资源中心(Arid): Spatial patterns of microbial nitrogen-cycling gene abundances along a precipitation gradient in various temperate grasslands at a regional scale

Arid

DOI	10.1016/j.geoderma.2021.115236
	Spatial patterns of microbial nitrogen-cycling gene abundances along a precipitation gradient in various temperate grasslands at a regional scale
	Zhou, Shutong; Xue, Kai; Zhang, Biao; Tang, Li; Pang, Zhe; Wang, Fang; Che, Rongxiao; Ran, Qinwei; Xia, Anquan; Wang, Kui; Li, Linfeng; Dong, Junfu; Du, Jianqing; Hu, Ronghai; Hao, Yanbin; Cui, Xiaoyong; Wang, Yanfen
通讯作者	Xue, K (corresponding author), Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China.
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2021
卷号	404
英文摘要	Despite the importance of microorganisms in soil nitrogen (N) cycling, studies on spatial patterns of microbial Ncycling gene abundances in temperate grasslands are still lacking, whose productivity is limited by N. Here, we investigated N functional genes in soil microorganisms from 60 sites in temperate grasslands across 1661 km in Inner Mongolia, China. Abundances of all N functional genes and 16S rDNA tended to decrease from northeast to southwest, consistent with the changing tend of precipitation but contrary to that of temperature. Non-linear saturation curves dominated patterns for abundances of most N functional genes and 16S rDNA along precipitation as they increased with the rising precipitation when <288-343 mm, but remained stable after these breaking points. Interestingly, these breaking points were clearly related to certain soil types, e.g. nifH did not change with precipitation in Chernozems and Gleysols, but increased with it in other soil types. Non-linear saturation patterns were also observed for most N functional gene and 16S rDNA abundances with temperature and soil total organic carbon. In contrast, no consistent spatial pattern for ratios of N functional genes: 16S rDNA was observed, which varied greatly by different N functional genes. Moreover, decay relationships were discovered for the abundance-based matrix of N functional genes over geographic distance. From the temperate meadows to typical steppes and to temperate desert steppes, the influence of relatively long-term environmental variables increased, but that of short-term ones decreased. Overall, we revealed non-linear patterns of N functional gene abundances along precipitation with a clear relationship with soil type, and discovered that attributions of geographic distance, plant community, historical-contingency and contemporary-disturbance to N functional gene community similarity decay were ecosystem-dependent.
英文关键词	Nitrogen functional genes Spatial pattern Non-linear relationship Breaking points Natural precipitation gradient Temperate grassland
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000700886000002
WOS关键词	BIOGEOGRAPHIC PATTERNS ; FUNCTIONAL GENES ; BETA-DIVERSITY ; SOIL ; COMMUNITIES ; WATER ; STEPPE ; CARBON ; BACTERIA ; PLANT
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363387
作者单位	[Zhou, Shutong; Wang, Fang; Ran, Qinwei; Xia, Anquan; Wang, Kui; Dong, Junfu; Hao, Yanbin; Cui, Xiaoyong] Univ Chinese Acad Sci, Coll Life Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China; [Xue, Kai; Zhang, Biao; Tang, Li; Pang, Zhe; Li, Linfeng; Du, Jianqing; Hu, Ronghai; Wang, Yanfen] Univ Chinese Acad Sci, Coll Resources & Environm, 19 A Yuquan Rd, Beijing 100049, Peoples R China; [Xue, Kai; Du, Jianqing; Hu, Ronghai; Hao, Yanbin; Cui, Xiaoyong; Wang, Yanfen] Univ Chinese Acad Sci, Yanshan Earth Crit Zone & Surface Fluxes Res Stn, Beijing 100049, Peoples R China; [Tang, Li; Wang, Fang; Li, Linfeng] Griffith Univ, Sch Environm & Sci, Environm Futures Res Inst, Brisbane, Qld 4111, Australia; [Che, Rongxiao] Yunnan Univ, Inst Int Rivers & Ecosecur, 6th Floor Wenjin Bldg, Kunming 650091, Yunnan, Peoples R China; [Dong, Junfu] Shandong Univ Qingdao, Inst Marine Sci & Technol, 72 Binhai Rd, Qingdao 266237, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Shutong,Xue, Kai,Zhang, Biao,et al. Spatial patterns of microbial nitrogen-cycling gene abundances along a precipitation gradient in various temperate grasslands at a regional scale[J],2021,404.
APA	Zhou, Shutong.,Xue, Kai.,Zhang, Biao.,Tang, Li.,Pang, Zhe.,...&Wang, Yanfen.(2021).Spatial patterns of microbial nitrogen-cycling gene abundances along a precipitation gradient in various temperate grasslands at a regional scale.GEODERMA,404.
MLA	Zhou, Shutong,et al."Spatial patterns of microbial nitrogen-cycling gene abundances along a precipitation gradient in various temperate grasslands at a regional scale".GEODERMA 404(2021).