Charles Darwin University

CDU eSpace
Institutional Repository

 
CDU Staff and Student only
 

Impact of tree clearing on soil respiration and soil microbial biomass in pasture systems of Central Queensland, Australia

Sangha, Kamaljit (Kaur, Kamaljit), Jalota, Rajesh K., Midmore, David J. and Walsh, Kerry (2006). Impact of tree clearing on soil respiration and soil microbial biomass in pasture systems of Central Queensland, Australia. Agricultural Journal,1(4):291-302.

Document type: Journal Article
Citation counts: Google Scholar Search Google Scholar
Attached Files (Some files may be inaccessible until you login with your CDU eSpace credentials)
Name Description MIMEType Size Downloads
Download this reading Sangha_50317.pdf Accepted version application/pdf 501.57KB 31
Reading the attached file works best in Firefox, Chrome and IE 9 or later.

Title Impact of tree clearing on soil respiration and soil microbial biomass in pasture systems of Central Queensland, Australia
Author Sangha, Kamaljit (Kaur, Kamaljit)
Jalota, Rajesh K.
Midmore, David J.
Walsh, Kerry
Journal Name Agricultural Journal
Publication Date 2006
Volume Number 1
Issue Number 4
ISSN 1816-9155   (check CDU catalogue open catalogue search in new window)
Start Page 291
End Page 302
Total Pages 12
Place of Publication Pakistan
Publisher Medwell Journals
Field of Research 300000 Agricultural, Veterinary and Environmental Sciences
Abstract Forest clearing, a topical issue the world over, historically occurred at a high rate in Queensland to ostensibly increase pasture production. Our research evaluates the impact of clearing on selected soil biological properties (i.e. total soil respiration, root respiration, microbial respiration and microbial biomass (C and N)). Three major woodland communities of central Queensland region i.e. Eucalyptus populnea, E. melanophloia and Acacia harpophylla were selected for paired comparisons between sites that had, or had not, been cleared of trees to develop land for exotic pastures. The cleared sites representing three different time periods since clearing (5, 11-13 and 33 years) were used to determine the temporal impact of clearing on soil biological properties. Cleared and uncleared sites did not differ in annual or seasonal rates of soil respiration. The average annual rate of CO2 emission across all treatments was 0.11 g CO2/m2.h. Microbial respiration and microbial biomass (measured in January 2002) were, however, greater at uncleared than at cleared sites and conversely, root respiration (for roots from herbaceous plants) was greater at cleared than uncleared site. The Q10 value of 1.42 (measured for different seasons over a year) suggested some response of soil respiration to soil temperature, which is less compared to that in temperate climates possibly due to the limited availability of soil moisture or organic matter in the semi-arid climates of central Queensland.
Description for Link Link to publisher's version
URL http://www.medwelljournals.com/abstract/?doi=aj.2006.291.302


© copyright

Every reasonable effort has been made to ensure that permission has been obtained for items included in CDU eSpace. If you believe that your rights have been infringed by this repository, please contact digitisation@cdu.edu.au.

 
Versions
Version Filter Type
Access Statistics: 29 Abstract Views, 31 File Downloads  -  Detailed Statistics
Created: Wed, 28 Oct 2015, 09:39:21 CST by Marion Farram