Using the carbon management index to indicate ecosystem function in brigalow (Acacia harpophylla) agro-ecosystems of South East Queensland, Australia
Paper
Paper/Presentation Title | Using the carbon management index to indicate ecosystem function in brigalow (Acacia harpophylla) agro-ecosystems of South East Queensland, Australia |
---|---|
Presentation Type | Paper |
Authors | |
Author | Collard, Stuart J. |
Editors | Timmins, Susan |
Journal or Proceedings Title | Proceedings of the 3rd Joint Conference of the New Zealand Ecological Society and the Ecological Society of Australia (ECOSOC/ESA 2006) |
Number of Pages | 1 |
Year | 2006 |
Place of Publication | Wellington, New Zealand |
Web Address (URL) of Paper | http://www.iffa.org.au/node/189 |
Conference/Event | ECOSOC/ESA 2006: Ecology Across the Tasman |
Event Details | ECOSOC/ESA 2006: Ecology Across the Tasman Event Date 28 Aug 2006 to end of 01 Sep 2006 Event Location Wellington, New Zealand |
Abstract | Soil organic matter is an effective indicator of soil resource condition that reflects functional traits such as aggregation, infiltration and microbial activity and plays a critical role in sustaining production and ecosystem services in agricultural landscapes. Agricultural practices typically reduce soil carbon levels through the action of soil disturbance and consequent mineralisation. In the Brigalow (Acacia harpophylla) landscape we studied, soil carbon levels in pellic vertisols were significantly lower in the agricultural matrix of cropping and grasslands than in remnant Brigalow vegetation. There was no detectable gradient of soil carbon across Brigalow/matrix boundaries. Uncultivated grasslands showed signaificantly higher carbon levels than currently and previously cultivated grasslands, with regenerating grasslands showing no significant recovery of soil carbon over 15 years. The carbon management index (CMI) was used to combine the active and passive components of soil carbon to provide a sensitive indicator of the rate of change of carbon dynamics in response to changes in land management at local-scales. A landscape CMI (CMIL) was developed, by aggregating soil carbon data using GIS-derived spatial data. the landscape CMI is proposed as a potentially useful tool for modelling soil carbon dynamics and ecosystem function in agro-ecosystems at a range of spatial scales. |
Keywords | carbon management index; ecosystem function; brigalow; acacia harpophylla; agro-ecosystems; South East Queensland |
ANZSRC Field of Research 2020 | 310308. Terrestrial ecology |
410203. Ecosystem function | |
410401. Conservation and biodiversity | |
Public Notes | Conference publication consists of only the abstracts of papers presented at the conference. Abstract only posted here. No evidence of copyright restrictions on web site. |
Byline Affiliations | Australian Centre for Sustainable Catchments |
https://research.usq.edu.au/item/9xwz7/using-the-carbon-management-index-to-indicate-ecosystem-function-in-brigalow-acacia-harpophylla-agro-ecosystems-of-south-east-queensland-australia
Download files
2107
total views273
total downloads1
views this month1
downloads this month