Publication
Title
Soil microbial community composition does not predominantly determine the variance of heterotrophic soil respiration across four subtropical forests
Author
Abstract
To explore the importance of soil microbial community composition on explaining the difference in heterotrophic soil respiration (R-h) across forests, a field investigation was conducted on R-h and soil physiochemical and microbial properties in four subtropical forests in southern China. We observed that R-h differed significantly among forests, being 2.48 +/- 0.23, 2.31 +/- 0.21, 1.83 +/- 0.08 and 1.56 +/- 0.15 mu mol m(-2) s(-1) in the climax evergreen broadleaf forest (BF), the mixed conifer and broadleaf forest (CF), the conifer plantation (CP), and the native broadleaved species plantation (BP), respectively. Both linear mixed effect model and variance decomposition analysis indicated that soil microbial community composition derived from phospholipid fatty acids (PLFAs) was not the first-order explanatory variable for the R-h variance across the forests, with the explanatory power being 15.7%. Contrastingly, vegetational attributes such as root biomass (22.6%) and soil substrate availability (18.6%) were more important for explaining the observed R-h variance. Our results therefore suggest that vegetation attributes and soil carbon pool size, rather than soil microbial community composition, should be preferentially considered to understand the spatial R-h variance across the subtropical forests in southern China.
Language
English
Source (journal)
Scientific reports. - London, 2011, currens
Publication
London : Nature Publishing Group, 2015
ISSN
2045-2322
Volume/pages
5(2015), 6 p.
Article Reference
7854
ISI
000347978300015
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 13.03.2015
Last edited 19.08.2017
To cite this reference