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Soil microbial biomass and community structure affected by repeated additions of sewage sludge in four Swedish long-term field experiments

Börjesson, Gunnar and Kätterer, Thomas and Kirchmann, Holger (2012). Soil microbial biomass and community structure affected by repeated additions of sewage sludge in four Swedish long-term field experiments. I/In: European Geosciences Union General Assembly, 120422 - 120427, Vienna, Austria.
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Abstract

Soil organic matter is a key attribute of soil fertility. The pool of soil organic C can be increased, either by mineral fertilisers or by adding organic amendments such as sewage sludge. Sewage sludge has positive effects on agricultural soils through the supply of organic matter and essential plant nutrients, but sludge may also contain unwanted heavy metals, xenobiotic substances and pathogens. One obvious effect of long-term sewage sludge addition is a decrease in soil pH, caused by N mineralisation followed by nitrification, sulphate formation and presence of organic acids with the organic matter added. The objective of this study was to investigate the effect of sewage sludge on the microbial biomass and community structure.

Authors/Creators:Börjesson, Gunnar and Kätterer, Thomas and Kirchmann, Holger
Title:Soil microbial biomass and community structure affected by repeated additions of sewage sludge in four Swedish long-term field experiments
Series/Journal:Geophysical research abstracts (1607-7962)
Year of publishing :2012
Volume:14
Page range:1
Number of Pages:1
Place of Publication:Vienna, Austria
Publisher:Copernicus Gesellschaft GMBH
ISSN:1607-7962
Language:English
Publication Type:Conference Paper (Paper)
Refereed:Yes
Article category:Other scientific
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
Keywords:Soil organic matter, microbial biomass, sludge
URN:NBN:urn:nbn:se:slu:epsilon-e-3707
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-3707
ID Code:13131
Faculty:S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment
Deposited By: SLUpub Connector
Deposited On:03 Oct 2016 12:15
Metadata Last Modified:03 Oct 2016 12:15

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