Climate Adaptation 2014: Future Challenges WWW.DPI.NSW.GOV.AU Involving leguminous crop rotation as climate change adaption option also as lower nitrous oxide emissions from dryland cropping Yuchun Ma 1,2,3 , Graeme Schwenke 4 , Bin Wang 1,5 , De Li Liu 1,2 , Muhhuddin Anwar 1,2 1 NSW Department of Primary Industries, Wagga Wagga Agricultural Institute, Wagga Wagga, NSW 2650, Australia 2 Graham Centre for Agricultural Innovation, PMB, Pine Gully Road, Wagga Wagga, NSW 2650, Australia 3 College of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China 4 NSW Department of Primary Industries, 4 Marsden Park Road, Tamworth, NSW 2340, Australia 5 Plant Biology and Climate Change Cluster, University of Technology Sydney, PO Box 123, Broadway, NSW 2007, Australia
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Involving leguminous crop rotation as climate …...Climate Adaptation 2014: Future Challenges Involving leguminous crop rotation as climate change adaption option also as lower nitrous
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Climate scenarios: RCP 4.5 with radiative forcing stabilized shortly after 2100 scenarios RCP 8.5 with very high greenhouse gas emissions (adopted based on the Intergovernmental Panel on Climate Change (IPCC) fifth Assessment Report (AR5) ) Climate data of RCP 4.5 and RCP 8.5 A weather-generator statistical downscaling method (Liu and Zuo, 2012, Liu et al.,
2014) was utilized to downscale IPCC AR5 GCM (CSIRO Mk 3.6) projection under
the RCP 4.5 and RCP 8.5 scenarios to yield the daily climate data for the period of
1960-2100.
Historical climate data for the period of 1960-2013 were obtained from the SILO Patched Point Dataset and were used for two purposes: ①The data for the period of 1960-2000 were used to establish the relationship between CSIRO-Mk3.6 simulated climate and the measured historical climate for bias-correlation as described by Liu and Zuo (2012). ②The period of historical 1961-2010 were used as a baseline to run DNDC model for simulating the discrepancy of N2O emissions and grain yields under current climate.
(Although the downscaling approach incorporates a bias-correlation, the downscaled daily climate is still needed to demonstrate agreement with site measured data)
No clear trends for precipitation Air temperature increased