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Biochar and compost amendments enhance copper immobilisation and support plant growth in contaminated soils

Biochar and compost amendments enhance copper immobilisation and support plant growth in contaminated soils
Biochar and compost amendments enhance copper immobilisation and support plant growth in contaminated soils
Contamination of soil with trace elements, such as Cu, is an important risk management issue. A pot experiment was conducted to determine the effects of three biochars and compost on plant growth and the immobilisation of Cu in a contaminated soil from a site formerly used for wood preservation. To assess Cu mobility, amended soils were analysed using leaching tests pre- and post-incubation, and post-growth. Amended and unamended soils were planted with sunflower, and the resulting plant material was assessed for yield and Cu concentration. All amendments significantly reduced leachable Cu compared to the unamended soil, however, the greatest reductions in leachable Cu were associated with the higher biochar application rate. The greatest improvements in plant yields were obtained with the higher application rate of biochar in combination with compost. The results suggest joint biochar and compost amendment reduces Cu mobility and can support biomass production on Cu-contaminated soils.
Organic amendments, Sunflower, Leaching tests, Plant trials, Trace elements, In situ stabilisation
0301-4797
101-112
Jones, Sarah
d54e1ff1-b6b2-4be2-9999-1e1f5fc9d7c3
Bardos, R. Paul
2479866a-01e2-4f83-bafc-5ed5a42efdc9
Kidd, Petra S.
ab792672-adba-42f9-9100-d9cb965afffd
Mench, Michel
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de Leij, Frans
54b5987c-56ad-439f-a6c9-5fc2de3b8040
Hutchings, Tony
922838c3-a4ff-4dbc-8300-6cf3da1dfeeb
Cundy, Andrew
994fdc96-2dce-40f4-b74b-dc638286eb08
Joyce, Chris
a67ba493-9fdb-4459-8e37-a93f909f867c
Soja, Gerhard
4379c656-89b2-4f15-a46c-492fca78d6f0
Friesl-Hanl, Wolfgang
fd08b034-a55e-423e-b604-44a72f0f1209
Herzig, Rolf
a8e5ebd8-02b4-4fb9-b420-e7ccf205f563
Menger, Pierre
00e35aec-0149-45d9-a367-883f1ffcdf70
Jones, Sarah
d54e1ff1-b6b2-4be2-9999-1e1f5fc9d7c3
Bardos, R. Paul
2479866a-01e2-4f83-bafc-5ed5a42efdc9
Kidd, Petra S.
ab792672-adba-42f9-9100-d9cb965afffd
Mench, Michel
7c4ecee6-5e25-4d9e-ab56-5a3393718e33
de Leij, Frans
54b5987c-56ad-439f-a6c9-5fc2de3b8040
Hutchings, Tony
922838c3-a4ff-4dbc-8300-6cf3da1dfeeb
Cundy, Andrew
994fdc96-2dce-40f4-b74b-dc638286eb08
Joyce, Chris
a67ba493-9fdb-4459-8e37-a93f909f867c
Soja, Gerhard
4379c656-89b2-4f15-a46c-492fca78d6f0
Friesl-Hanl, Wolfgang
fd08b034-a55e-423e-b604-44a72f0f1209
Herzig, Rolf
a8e5ebd8-02b4-4fb9-b420-e7ccf205f563
Menger, Pierre
00e35aec-0149-45d9-a367-883f1ffcdf70

Jones, Sarah, Bardos, R. Paul, Kidd, Petra S., Mench, Michel, de Leij, Frans, Hutchings, Tony, Cundy, Andrew, Joyce, Chris, Soja, Gerhard, Friesl-Hanl, Wolfgang, Herzig, Rolf and Menger, Pierre (2016) Biochar and compost amendments enhance copper immobilisation and support plant growth in contaminated soils. Journal of Environmental Management, 171, 101-112. (doi:10.1016/j.jenvman.2016.01.024).

Record type: Article

Abstract

Contamination of soil with trace elements, such as Cu, is an important risk management issue. A pot experiment was conducted to determine the effects of three biochars and compost on plant growth and the immobilisation of Cu in a contaminated soil from a site formerly used for wood preservation. To assess Cu mobility, amended soils were analysed using leaching tests pre- and post-incubation, and post-growth. Amended and unamended soils were planted with sunflower, and the resulting plant material was assessed for yield and Cu concentration. All amendments significantly reduced leachable Cu compared to the unamended soil, however, the greatest reductions in leachable Cu were associated with the higher biochar application rate. The greatest improvements in plant yields were obtained with the higher application rate of biochar in combination with compost. The results suggest joint biochar and compost amendment reduces Cu mobility and can support biomass production on Cu-contaminated soils.

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More information

Accepted/In Press date: 21 January 2016
Published date: 15 April 2016
Keywords: Organic amendments, Sunflower, Leaching tests, Plant trials, Trace elements, In situ stabilisation
Organisations: Geochemistry

Identifiers

Local EPrints ID: 399258
URI: https://eprints.soton.ac.uk/id/eprint/399258
ISSN: 0301-4797
PURE UUID: 031aa1cd-fddf-4e0e-854e-0694ac607bcb
ORCID for Andrew Cundy: ORCID iD orcid.org/0000-0003-4368-2569

Catalogue record

Date deposited: 09 Aug 2016 16:15
Last modified: 15 Aug 2019 00:32

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Contributors

Author: Sarah Jones
Author: R. Paul Bardos
Author: Petra S. Kidd
Author: Michel Mench
Author: Frans de Leij
Author: Tony Hutchings
Author: Andrew Cundy ORCID iD
Author: Chris Joyce
Author: Gerhard Soja
Author: Wolfgang Friesl-Hanl
Author: Rolf Herzig
Author: Pierre Menger

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