Will modifying soil water holding capacity increase the resilience of southern Australian crop-livestock farms to climate change?
Presentation
Paper/Presentation Title | Will modifying soil water holding capacity increase the resilience of southern Australian crop-livestock farms to climate change? |
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Presentation Type | Presentation |
Authors | Thomas, D. S. (Author), Hayman, Peter (Author) and Ghahramani, Afshin (Author) |
Editors | Weber, T., McPhee, M. J. and Anderssen, R. S. |
Journal or Proceedings Title | Proceedings of the 21st International Congress on Modelling and Simulation (MODSIM2015) |
Number of Pages | 1 |
Year | 2015 |
Publisher | Modelling and Simulation Society of Australia and New Zealand |
Place of Publication | Canberra, Australia |
ISBN | 9780987214348 |
Web Address (URL) of Paper | http://www.mssanz.org.au/modsim2015/ |
Conference/Event | 21st International Congress on Modelling and Simulation (MODSIM2015) |
Event Details | Rank C C C C C C C |
Event Details | 21st International Congress on Modelling and Simulation (MODSIM2015) Parent International Congress on Modelling and Simulation Delivery In person Event Date 29 Nov 2015 to end of 04 Dec 2015 Event Location Gold Coast, Australia |
Abstract | Southern Australia is expected to face a warmer and drier climate in near future that will affect the dryland crop-livestock farming enterprises. As soil provides a buffer to store water between rainfall events, a suggested climate adaptation option is to reduce subsoil constraints (physical or chemical) to increase the soil plant available water capacity (PAWC). The considerable costs to modify the subsoil raises a question of how much PAWC needs to be increased and how often the increased PAWC would be advantageous. This research examines the effect of increasing PAWC from 40 to 120 mm in 20 mm increments on wheat and pasture production along a climate transect from 385 to 219 mm mean growing season rainfall during the historic climate and in two potential climate projections for 2030: moderate warming with little changes in rainfall, and more severe warming with declining rainfall. |
Keywords | wheat yield, pasture production, mixed farm system, adaptation, soil modification |
ANZSRC Field of Research 2020 | 410605. Soil physics |
300207. Agricultural systems analysis and modelling | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | SARDI Climate Applications, Australia |
Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3q7x/will-modifying-soil-water-holding-capacity-increase-the-resilience-of-southern-australian-crop-livestock-farms-to-climate-change
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796-1788-1-RV_Modsim_2015_Extended abstract_Thomas_ soil water holding capacity.pdf | ||
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