Spatial variability of soil fungal and bacterial abundance: Consequences for carbon turnover along a transition from a forested to clear-cut site
(2013) In Soil Biology & Biochemistry 63. p.5-13- Abstract
- Predicted alterations in belowground plant-allocated C as a result of environmental change may cause compositional shifts in soil microbial communities, and it has been hypothesized that such alterations will influence C mitigation in forest ecosystems. In order to investigate to what degree living trees influence the abundance and activity of mycorrhizal fungi, saprotrophic fungi, and bacteria we used a geostatistical approach to examine natural abundance stable-isotope-ratios of soil microbial PLFAs, respired CO2, and different soil organic C pools in a 100 point grid extending from an area of retention trees into a clear-cut area. Labile C from trees was the major source of C for the fungal communities and influenced the composition of... (More)
- Predicted alterations in belowground plant-allocated C as a result of environmental change may cause compositional shifts in soil microbial communities, and it has been hypothesized that such alterations will influence C mitigation in forest ecosystems. In order to investigate to what degree living trees influence the abundance and activity of mycorrhizal fungi, saprotrophic fungi, and bacteria we used a geostatistical approach to examine natural abundance stable-isotope-ratios of soil microbial PLFAs, respired CO2, and different soil organic C pools in a 100 point grid extending from an area of retention trees into a clear-cut area. Labile C from trees was the major source of C for the fungal communities and influenced the composition of the microbial community and soil respiration rates up to ten meters into the clear-cut. When the input of labile plant C decreased, it appeared that microorganisms became increasingly dependent on recycled C released during microbial turnover, resulting in a decrease in soil respiration. Our findings demonstrate that plants not only influence the structure and function of soil microbial communities but also act as important regulators of belowground C flux, soil C sequestration and, ultimately, soil C stocks. (c) 2013 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3980028
- author
- Churchland, Carolyn ; Grayston, Sue J. and Bengtson, Per LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Carbon cycling, Soil microorganisms, Forests, Spatial variation, C-13, natural abundance, CO2, Clear-cut
- in
- Soil Biology & Biochemistry
- volume
- 63
- pages
- 5 - 13
- publisher
- Elsevier
- external identifiers
-
- wos:000320639300002
- scopus:84876485248
- ISSN
- 0038-0717
- DOI
- 10.1016/j.soilbio.2013.03.015
- language
- English
- LU publication?
- yes
- id
- 3945a360-1fc9-469c-9e1b-25ac456a11b9 (old id 3980028)
- date added to LUP
- 2016-04-01 14:26:10
- date last changed
- 2022-04-22 03:18:51
@article{3945a360-1fc9-469c-9e1b-25ac456a11b9,
abstract = {{Predicted alterations in belowground plant-allocated C as a result of environmental change may cause compositional shifts in soil microbial communities, and it has been hypothesized that such alterations will influence C mitigation in forest ecosystems. In order to investigate to what degree living trees influence the abundance and activity of mycorrhizal fungi, saprotrophic fungi, and bacteria we used a geostatistical approach to examine natural abundance stable-isotope-ratios of soil microbial PLFAs, respired CO2, and different soil organic C pools in a 100 point grid extending from an area of retention trees into a clear-cut area. Labile C from trees was the major source of C for the fungal communities and influenced the composition of the microbial community and soil respiration rates up to ten meters into the clear-cut. When the input of labile plant C decreased, it appeared that microorganisms became increasingly dependent on recycled C released during microbial turnover, resulting in a decrease in soil respiration. Our findings demonstrate that plants not only influence the structure and function of soil microbial communities but also act as important regulators of belowground C flux, soil C sequestration and, ultimately, soil C stocks. (c) 2013 Elsevier Ltd. All rights reserved.}},
author = {{Churchland, Carolyn and Grayston, Sue J. and Bengtson, Per}},
issn = {{0038-0717}},
keywords = {{Carbon cycling; Soil microorganisms; Forests; Spatial variation; C-13; natural abundance; CO2; Clear-cut}},
language = {{eng}},
pages = {{5--13}},
publisher = {{Elsevier}},
series = {{Soil Biology & Biochemistry}},
title = {{Spatial variability of soil fungal and bacterial abundance: Consequences for carbon turnover along a transition from a forested to clear-cut site}},
url = {{http://dx.doi.org/10.1016/j.soilbio.2013.03.015}},
doi = {{10.1016/j.soilbio.2013.03.015}},
volume = {{63}},
year = {{2013}},
}