Differential mechanisms underlying responses of soil bacterial and fungal communities to nitrogen and phosphorus inputs in a subtropical forest

doi:10.7717/peerj.7631

	Differential mechanisms underlying responses of soil bacterial and fungal communities to nitrogen and phosphorus inputs in a subtropical forest
	Li, Yong 2; Tian, Dashuan 3; Wang, Jinsong 3; Niu, Shuli 3; Tian, Jing 3; Ha, Denglong 4; Qu, Yuxi 4; Jing, Guangwei 4; Kang, Xiaoming 2; Song, Bing 1
刊名	PEERJ
	2019-09-06
卷号	7 页码:23
关键词	Nitrogen deposition Phosphorus addition Microbial diversity Community composition Amplicon sequencing Subtropical forest Soil bacteria and fungi
ISSN号	2167-8359
DOI	10.7717/peerj.7631
通讯作者	Kang, Xiaoming(xmkang@ucas.ac.cn) ; Song, Bing(songbing@ldu.edu.cn)
英文摘要	Atmospheric nitrogen (N) deposition and phosphorus (P) addition both can change soil bacterial and fungal community structure with a consequent impact on ecosystem functions. However, which factor plays an important role in regulating responses of bacterial and fungal community to N and P enrichments remains unclear. We conducted a manipulative experiment to simulate N and P inputs (10 g N . m(-2) . yr(-1) NH4NO3 or 10 g P . m(-2) . yr(-1) NaH2PO4) and compared their effects on soil bacterial and fungal species richness and community composition. The results showed that the addition of N significantly increased NH+4 and Al3+ by 99.6% and 57.4%, respectively, and consequently led to a decline in soil pH from 4.18 to 3.75 after a 5-year treatment. P addition increased Al3+ and available P by 27.0% and 10-fold, respectively, but had no effect on soil pH. N addition significantly decreased bacterial species richness and Shannon index and resulted in a substantial shift of bacterial community composition, whereas P addition did not. Neither N nor P addition changed fungal species richness, Shannon index, and fungal community composition. A structural equation model showed that the shift in bacterial community composition was related to an increase in soil acid cations. The principal component scores of soil nutrients showed a significantly positive relationship with fungal community composition. Our results suggest that N and P additions affect soil bacterial and fungal communities in different ways in subtropical forest. These findings highlight how the diversity of microbial communities of subtropical forest soil will depend on future scenarios of anthropogenic N deposition and P enrichment, with a particular sensitivity of bacterial community to N addition.
资助项目	National Natural Science Foundation of China[41403073] ; National Natural Science Foundation of China[31600356] ; Thousand Young Talents program
WOS关键词	BELOW-GROUND COMMUNITIES ; LONG-TERM NITROGEN ; MICROBIAL COMMUNITIES ; PLANT DIVERSITY ; EXOGENOUS NITROGEN ; BIODIVERSITY LOSS ; ALPHA DIVERSITY ; ALPINE MEADOW ; FERTILIZATION ; ENRICHMENT
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	PEERJ INC
WOS记录号	WOS:000484657600007
资助机构	National Natural Science Foundation of China ; Thousand Young Talents program
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/69623]
专题	中国科学院地理科学与资源研究所
通讯作者	Kang, Xiaoming; Song, Bing
作者单位	1.Ludong Univ, Sch Resources & Environm Engn, Yantai, Peoples R China 2.Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Serv & Restorat, Beijing, Peoples R China 3.Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 4.Jigongshan Nat Reserve, Xinyang, Peoples R China
推荐引用方式 GB/T 7714	Li, Yong,Tian, Dashuan,Wang, Jinsong,et al. Differential mechanisms underlying responses of soil bacterial and fungal communities to nitrogen and phosphorus inputs in a subtropical forest[J]. PEERJ,2019,7:23.
APA	Li, Yong.,Tian, Dashuan.,Wang, Jinsong.,Niu, Shuli.,Tian, Jing.,...&Song, Bing.(2019).Differential mechanisms underlying responses of soil bacterial and fungal communities to nitrogen and phosphorus inputs in a subtropical forest.PEERJ,7,23.
MLA	Li, Yong,et al."Differential mechanisms underlying responses of soil bacterial and fungal communities to nitrogen and phosphorus inputs in a subtropical forest".PEERJ 7(2019):23.