Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0269-7491(00)00094-4
DC FieldValue
dc.titleMicrobial cellulose decomposition in soils from a rifle range contaminated with heavy metals
dc.contributor.authorChew, I.
dc.contributor.authorObbard, J.P.
dc.contributor.authorStanforth, R.R.
dc.date.accessioned2014-10-09T09:56:08Z
dc.date.available2014-10-09T09:56:08Z
dc.date.issued2001
dc.identifier.citationChew, I., Obbard, J.P., Stanforth, R.R. (2001). Microbial cellulose decomposition in soils from a rifle range contaminated with heavy metals. Environmental Pollution 111 (3) : 367-375. ScholarBank@NUS Repository. https://doi.org/10.1016/S0269-7491(00)00094-4
dc.identifier.issn02697491
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/92117
dc.description.abstractThe objective of this study was to assess the effects of heavy metals on microbial decomposition of cellulose in heavy metal-contaminated soils using a cotton strip assay. The assay is a measure of the potential of soil microorganisms to decompose the plant polymer, cellulose. Cellulolytic activity in soil was assessed by determining the reduction in tensile strength of the buried cotton strips over a 25- and 45-day period. Soils were obtained from a rifle range that contain high levels of lead, copper and zinc. The site has been used for approximately 50 years, resulting in metal levels of up to 30,000 mg/kg of lead, 4000 mg/kg of copper and 600 mg/kg of zinc in the most contaminated soils. All the metal-contaminated soils had lower degradation rates than the uncontaminated soils tested. Among the contaminated soils, however, the heavy metal concentration was not the major factor in determining the loss in tensile strength of the cotton strips, where cellulose decomposition was governed by other soil physicochemical properties. Soil with a higher cation exchange capacity, readily oxidisable material and volatile solids content had the greatest loss in tensile strength of cotton strips. Microbial adaptation to the presence of high concentrations of soil heavy metals and reduced bioavailability of metals is the likely explanation for this phenomenon. (C) 2000 Elsevier Science Ltd.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0269-7491(00)00094-4
dc.sourceScopus
dc.subjectCellulose
dc.subjectCotton strip
dc.subjectDecomposition
dc.subjectHeavy metal-contaminated soils
dc.subjectTensile strength
dc.typeArticle
dc.contributor.departmentCHEMICAL & ENVIRONMENTAL ENGINEERING
dc.description.doi10.1016/S0269-7491(00)00094-4
dc.description.sourcetitleEnvironmental Pollution
dc.description.volume111
dc.description.issue3
dc.description.page367-375
dc.description.codenENPOE
dc.identifier.isiut000165205900003
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

45
checked on Nov 25, 2020

WEB OF SCIENCETM
Citations

40
checked on Nov 25, 2020

Page view(s)

44
checked on Nov 29, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.