Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Influence of plants on the chemical extractability and biodegradability of 2,4-dichlorophenol in soil.
AU - Boucard, Tatiana K.
AU - Bardgett, Richard D.
AU - Jones, Kevin C.
AU - Semple, Kirk T.
PY - 2005/1
Y1 - 2005/1
N2 - This study investigated the fate and behaviour of [UL-C-14] 2,4-dichlorophenol (DCP) in planted (Lolium perenne L.) and unplanted soils over 57 days. Extractability of [UL-C-14] 2,4-DCP associated activity was measured using calcium chloride (CaCl2), acetonitrile-water and dichloromethane (DCM) extractions. Biodegradability of [UL-C-14] 2,4-DCP associated activity was assessed through measurement of (CO2)-C-14 production by a degrader inoculum (Burkholderia sp.). Although extractability and mineralisation of [UL-C-14] 2,4-DCP associated activity decreased significantly in both planted and unplanted soils, plants appeared to enhance the sequestration process. After 57 days, in unplanted soil, 27% of the remaining [UL-C-14] 2,4-DCP associated activity was mineralised by Burkholderia sp., and 13%, 48%, and 38% of C-14-activity were extracted by CaCl2, acetonitrile-water and DCM, respectively. However, after 57 days, in planted soils, only 10% of the [UL-C-14] 2,4-DCP associated activity was available for mineralisation, whilst extractability was reduced to 2% by CaCl2, 17% by acetonitrile-water and 11% by DCM. This may be due to the effect of plants on soil moisture conditions, which leads to modification of the soil structure and trapping of the compound. However, the influence of plants on soil biological and chemical properties may also play a role in the ageing process. (C) 2004 Elsevier Ltd. All rights reserved.}
AB - This study investigated the fate and behaviour of [UL-C-14] 2,4-dichlorophenol (DCP) in planted (Lolium perenne L.) and unplanted soils over 57 days. Extractability of [UL-C-14] 2,4-DCP associated activity was measured using calcium chloride (CaCl2), acetonitrile-water and dichloromethane (DCM) extractions. Biodegradability of [UL-C-14] 2,4-DCP associated activity was assessed through measurement of (CO2)-C-14 production by a degrader inoculum (Burkholderia sp.). Although extractability and mineralisation of [UL-C-14] 2,4-DCP associated activity decreased significantly in both planted and unplanted soils, plants appeared to enhance the sequestration process. After 57 days, in unplanted soil, 27% of the remaining [UL-C-14] 2,4-DCP associated activity was mineralised by Burkholderia sp., and 13%, 48%, and 38% of C-14-activity were extracted by CaCl2, acetonitrile-water and DCM, respectively. However, after 57 days, in planted soils, only 10% of the [UL-C-14] 2,4-DCP associated activity was available for mineralisation, whilst extractability was reduced to 2% by CaCl2, 17% by acetonitrile-water and 11% by DCM. This may be due to the effect of plants on soil moisture conditions, which leads to modification of the soil structure and trapping of the compound. However, the influence of plants on soil biological and chemical properties may also play a role in the ageing process. (C) 2004 Elsevier Ltd. All rights reserved.}
KW - extractability
KW - biodegradability
KW - mineralisation
KW - 2
KW - 4-dichlorophenol
KW - rye grass (Lolium perenne L.)
KW - ageing
U2 - 10.1016/j.envpol.2004.04.014
DO - 10.1016/j.envpol.2004.04.014
M3 - Journal article
VL - 133
SP - 53
EP - 62
JO - Environmental Pollution
JF - Environmental Pollution
SN - 0269-7491
IS - 1
ER -