Soil respiration in the seasonally dry tropics near Townsville, North Queensland

Holt, J. A., Hodgen, M. J. and Lamb, D. (1990) Soil respiration in the seasonally dry tropics near Townsville, North Queensland. Australian Journal of Soil Research, 28 5: 737-745. doi:10.1071/SR9900737


Author Holt, J. A.
Hodgen, M. J.
Lamb, D.
Title Soil respiration in the seasonally dry tropics near Townsville, North Queensland
Journal name Australian Journal of Soil Research   Check publisher's open access policy
ISSN 0004-9573
Publication date 1990-01-01
Sub-type Article (original research)
DOI 10.1071/SR9900737
Open Access Status Not yet assessed
Volume 28
Issue 5
Start page 737
End page 745
Total pages 9
Language eng
Subject 2304 Environmental Chemistry
1111 Soil Science
Abstract The contribution of root respiration to total soil respiration has been examined in an Australian tropical semi-arid woodland. Respiration rates were estimated by measuring CO2released from untreated soil and from soil where roots had been severed and were extensivelydecomposed. The amount of C released as CO2by soil respiration was estimated to be3800 kg ha-1year-1, and by root respiration to be 1500 kg C ha-1year-1. Soil moisture wasfound to have a major effect on soil respiration, with temperature being less significant.Consequently, most respiratory activity in the soil was confined to the relatively short wetseason, with respiration rates being much lower during the dry season.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
 
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