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Differential mechanisms underlying responses of soil bacterial and fungal communities to nitrogen and phosphorus inputs in a subtropical forest
Li, Yong1; Tian, Dashuan2; Wang, Jinsong2; Niu, Shuli2; Tian, Jing2; Ha, Denglong3; Qu, Yuxi3; Jing, Guangwei3; Kang, Xiaoming1; Song, Bing4
2019-09-06
Source PublicationPEERJ
ISSN2167-8359
Volume7Pages:23
Corresponding AuthorKang, Xiaoming(xmkang@ucas.ac.cn) ; Song, Bing(songbing@ldu.edu.cn)
AbstractAtmospheric 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.
KeywordNitrogen deposition Phosphorus addition Microbial diversity Community composition Amplicon sequencing Subtropical forest Soil bacteria and fungi
DOI10.7717/peerj.7631
WOS KeywordBELOW-GROUND COMMUNITIES ; LONG-TERM NITROGEN ; MICROBIAL COMMUNITIES ; PLANT DIVERSITY ; EXOGENOUS NITROGEN ; BIODIVERSITY LOSS ; ALPHA DIVERSITY ; ALPINE MEADOW ; FERTILIZATION ; ENRICHMENT
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41403073] ; National Natural Science Foundation of China[31600356] ; Thousand Young Talents program
Funding OrganizationNational Natural Science Foundation of China ; Thousand Young Talents program
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000484657600007
PublisherPEERJ INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69624
Collection中国科学院地理科学与资源研究所
Corresponding AuthorKang, Xiaoming; Song, Bing
Affiliation1.Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Serv & Restorat, Beijing, Peoples R China
2.Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
3.Jigongshan Nat Reserve, Xinyang, Peoples R China
4.Ludong Univ, Sch Resources & Environm Engn, Yantai, Peoples R China
Recommended Citation
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.
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