Plant functional traits determine latitudinal variations in soil microbial function: evidence from forests in China
Xu, Zhiwei1,2,3; Yu, Guirui4,5; Wang, Qiufeng4,5; Zhang, Xinyu4,5; Wang, Ruili6; Zhao, Ning7; He, Nianpeng3,4; Liu, Ziping1,2,3
2019-09-04
Source PublicationBIOGEOSCIENCES
ISSN1726-4170
Volume16Issue:17Pages:3333-3349
Corresponding AuthorYu, Guirui(yugr@igsnrr.ac.cn) ; Wang, Qiufeng(qfwang@igsnrr.ac.cn)
AbstractPlant functional traits have increasingly been studied as determinants of ecosystem properties, especially for soil biogeochemical processes. While the relationships between biological community structures and ecological functions are a central issue in ecological theory, these relationships remain poorly understood at the large scale. We selected nine forests along the North-South Transect of Eastern China (NSTEC) to determine how plant functional traits influence the latitudinal pattern of soil microbial functions and how soil microbial communities and functions are linked at the regional scale. We found that there was considerable latitudinal variation in the profiles of different substrate use along the NSTEC. Specifically, we found that the substrate use by microorganisms was highest in the temperate forest soils (soil microbial substrate use intensities of 10-12), followed by the subtropical forest soils (soil microbial substrate use intensities of 7-10), and was least in the coniferous forest soils (soil microbial substrate use intensities of 4-7). The latitudinal variation in soil microbial function was more closely related to plant functional traits (leaf dry matter content, leaf C concentrations, and leaf N concentrations, P = 0.002) than climate (mean annual precipitation, P = 0.022). The soil silt, leaf dry matter, and leaf C and N contents were the main controls on the biogeographical patterns of microbial substrate use in these forest soils. The soil microbial community structures and functions were significantly correlated along the NSTEC. Soil carbohydrate and polymer substrate use were mainly related to soil Gram-positive (G(+)) bacterial and actinomycic phospholipid fatty acids (PLFAs), while the use of amine and miscellaneous substrates were related to soil Gram-negative (G(-)) bacterial and fungal PLFAs. The enzyme production varied with changes in the soil microbial communities. The soil enzyme activities were positively correlated with the bacterial PLFAs but were not correlated with the fungal PLFAs. The soil organic matter (SOM) decomposition rates were significantly higher in the temperate forests than in the subtropical and tropical forests, emphasizing the rapid degradability of high-energy substrates such as soil microbial biomass carbon, carbohydrates, and amino acids. The SOM decomposition rates were significantly and negatively related to soil dissolved organic carbon concentrations, carboxylic acids, polymers, and miscellaneous substrate use. The relationships between soil PLFAs and microbial substrate use, enzyme activities, and SOM decomposition rate show that as the soil microbial community structure changes, soil biogeochemical processes also change.
DOI10.5194/bg-16-3333-2019
WOS KeywordORGANIC-MATTER DECOMPOSITION ; EXTRACELLULAR ENZYME-ACTIVITY ; COMMUNITY COMPOSITION ; CHEMICAL-COMPOSITION ; CARBON ; DIVERSITY ; RESPIRATION ; PATTERNS ; TRANSECT ; NITROGEN
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41601084] ; National Natural Science Foundation of China[41571251] ; Fundamental Research Funds for the Central Universities[2412019FZ001] ; Science and Technology Research Project of Jilin Province[JJKH20190283KJ] ; National Key R&D Program of China[2016YFA0602301] ; China Postdoctoral Science Foundation[2018M631850]
Funding OrganizationNational Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Science and Technology Research Project of Jilin Province ; National Key R&D Program of China ; China Postdoctoral Science Foundation
WOS Research AreaEnvironmental Sciences & Ecology ; Geology
WOS SubjectEcology ; Geosciences, Multidisciplinary
WOS IDWOS:000484228200003
PublisherCOPERNICUS GESELLSCHAFT MBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/69780
Collection生态系统网络观测与模拟院重点实验室_生态系统综合研究中心
Corresponding AuthorYu, Guirui; Wang, Qiufeng
Affiliation1.Northeast Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Geog Proc & Ecol Secur Changbai Mt, Changchun 130024, Jilin, Peoples R China
2.Northeast Normal Univ, Inst Peat & Mire Res, Changchun 130024, Jilin, Peoples R China
3.Jilin Prov Key Lab Wetland Ecol Proc & Environm C, Changchun 130024, Jilin, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 10010, Peoples R China
5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
6.Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China
7.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Remote Sensing Gansu Prov, Heihe Remote Sensing Expt Res Stn, Lanzhou 730000, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Xu, Zhiwei,Yu, Guirui,Wang, Qiufeng,et al. Plant functional traits determine latitudinal variations in soil microbial function: evidence from forests in China[J]. BIOGEOSCIENCES,2019,16(17):3333-3349.
APA Xu, Zhiwei.,Yu, Guirui.,Wang, Qiufeng.,Zhang, Xinyu.,Wang, Ruili.,...&Liu, Ziping.(2019).Plant functional traits determine latitudinal variations in soil microbial function: evidence from forests in China.BIOGEOSCIENCES,16(17),3333-3349.
MLA Xu, Zhiwei,et al."Plant functional traits determine latitudinal variations in soil microbial function: evidence from forests in China".BIOGEOSCIENCES 16.17(2019):3333-3349.
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