Potential impacts of climate change on soil organic carbon and productivity in pastures of south eastern Australia
Rachelle S Meyer, Brendan R Cullen, Penny H Whetton, Fiona A Robertson, Richard J Eckard
AGRICULTURAL SYSTEMS | ELSEVIER SCI LTD | Published : 2018
Increasing soil organic carbon (SOC) stocks is an often-mentioned option to mitigate greenhouse gas emissions. However, increasing carbon stocks in agricultural soils is difficult and the ability of soils to store carbon as the climate changes is uncertain. This is due to many interacting factors, including those that vary spatially, contributing to organic matter inputs and decomposition rates. We used two models, the Sustainable Grazing Systems whole-farm system model (SGS) and the RothC soil carbon model, to investigate the potential impacts of climate change on SOC stocks in pastures in a temperate, winter-dominant rainfall region of south eastern Australia. A wide range of possible futu..View full abstract
We thank Ian Johnson for input regarding the details of SGS and the University of Melbourne's Faculty of Veterinary and Agricultural Sciences and the Australian-German Climate and Energy College for their support. This work was partially supported by the Whole Farm Systems Analysis of Mitigation (WFSAM) project. This project was supported by funding from the Australian Government Department of Agriculture and Water Resources as part of its Carbon Farming Futures Program, Dairy Australia, Meat & Livestock Australia and Australian Wool Innovation.