Advanced

Spatial uncoupling of biodegradation, soil respiration, and PAH concentration in a creosote contaminated soil.

Bengtsson, Göran LU ; Törneman, Niklas LU and Yang, Xiuhong LU (2010) In Environmental Pollution 158(9). p.2865-2871
Abstract
Hotspots and coldspots of concentration and biodegradation of polycyclic aromatic hydrocarbons (PAHs) marginally overlapped at the 0.5-100 m scale in a creosote contaminated soil in southern Sweden, suggesting that concentration and biodegradation had little spatial co-variation. Biodegradation was substantial and its spatial variability considerable and highly irregular, but it had no spatial autocorrelation. The soil concentration of PAHs explained only 20-30% of the variance of their biodegradation. Soil respiration was spatially autocorrelated. The spatial uncoupling between biodegradation and soil respiration seemed to be governed by the aging of PAHs in the soil, since biodegradation of added (13)C phenanthrene covaried with both... (More)
Hotspots and coldspots of concentration and biodegradation of polycyclic aromatic hydrocarbons (PAHs) marginally overlapped at the 0.5-100 m scale in a creosote contaminated soil in southern Sweden, suggesting that concentration and biodegradation had little spatial co-variation. Biodegradation was substantial and its spatial variability considerable and highly irregular, but it had no spatial autocorrelation. The soil concentration of PAHs explained only 20-30% of the variance of their biodegradation. Soil respiration was spatially autocorrelated. The spatial uncoupling between biodegradation and soil respiration seemed to be governed by the aging of PAHs in the soil, since biodegradation of added (13)C phenanthrene covaried with both soil respiration and microbial biomass. The latter two were also correlated with high concentrations of phospholipid fatty acids (PLFAs) that are common in gram-negative bacteria. However, several of the hotspots of biodegradation coincided with hotspots for the distribution of a PLFA indicative of fungal biomass. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Pollution
volume
158
issue
9
pages
2865 - 2871
publisher
Elsevier
external identifiers
  • wos:000281306400010
  • scopus:77958180184
ISSN
0269-7491
DOI
10.1016/j.envpol.2010.06.010
language
English
LU publication?
yes
id
2b5660a2-e81a-47e3-b61b-b6b3e6c1da7e (old id 1644953)
date added to LUP
2010-09-03 13:01:28
date last changed
2018-07-01 04:05:56
@article{2b5660a2-e81a-47e3-b61b-b6b3e6c1da7e,
  abstract     = {Hotspots and coldspots of concentration and biodegradation of polycyclic aromatic hydrocarbons (PAHs) marginally overlapped at the 0.5-100 m scale in a creosote contaminated soil in southern Sweden, suggesting that concentration and biodegradation had little spatial co-variation. Biodegradation was substantial and its spatial variability considerable and highly irregular, but it had no spatial autocorrelation. The soil concentration of PAHs explained only 20-30% of the variance of their biodegradation. Soil respiration was spatially autocorrelated. The spatial uncoupling between biodegradation and soil respiration seemed to be governed by the aging of PAHs in the soil, since biodegradation of added (13)C phenanthrene covaried with both soil respiration and microbial biomass. The latter two were also correlated with high concentrations of phospholipid fatty acids (PLFAs) that are common in gram-negative bacteria. However, several of the hotspots of biodegradation coincided with hotspots for the distribution of a PLFA indicative of fungal biomass.},
  author       = {Bengtsson, Göran and Törneman, Niklas and Yang, Xiuhong},
  issn         = {0269-7491},
  language     = {eng},
  number       = {9},
  pages        = {2865--2871},
  publisher    = {Elsevier},
  series       = {Environmental Pollution},
  title        = {Spatial uncoupling of biodegradation, soil respiration, and PAH concentration in a creosote contaminated soil.},
  url          = {http://dx.doi.org/10.1016/j.envpol.2010.06.010},
  volume       = {158},
  year         = {2010},
}