Text description for Appendix A

Figure A1: Past and expected changes to key inflation adjusted farm-gate prices

	Wool	Prime beef	Milksolids	Lamb	Urea
1990	1	1	1	1	1
1991	0.6757	0.992311	0.672933	0.843354	0.998486
1992	0.712959	1.018194	0.925134	0.871211	0.994472
1993	0.701853	1.103675	0.946953	1.169161	0.928672
1994	0.66411	1.061347	0.809046	1.159508	0.902005
1995	0.876909	0.817066	0.853064	0.953587	1.021186
1996	0.756091	0.61391	1.02536	0.961306	1.043084
1997	0.659593	0.589796	0.933546	1.133518	0.932532
1998	0.661428	0.681541	0.878441	1.026534	0.82697
1999	0.609483	0.819754	0.90396	1.072096	0.647869
2000	0.644508	1.006941	0.926261	1.181275	0.70062
2001	0.722626	1.148859	1.136188	1.416755	0.85383
2002	0.68317	1.195383	1.100595	1.566735	0.70876
2003	0.713121	0.908343	0.75587	1.352125	0.724575
2004	0.602514	0.880452	0.893412	1.31201	0.768981
2005	0.506841	0.924054	0.93623	1.3336	0.932498
2006	0.43569	0.86625	0.788667	1.088823	0.86845
2007	0.435619	0.897575	0.840702	1.037317	0.888387
2008	0.409346	0.947778	1.3452	1.012181	0.995715
2009	0.49641	1.12189	0.851047	1.248036	1.386474
2010	0.443627	1.003904	0.891641	1.228291	1.014111
2011	0.427994	0.922847	0.870676	1.124867	0.891014
2012	0.436632	0.917908	1.011487	1.095393	0.8808

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Figure A2: Model for deriving ruminant methane emissions (Clark et al, 2003)

A flow diagram illustrates how details from each livestock class separately (Sheep, Diary cattle, Beef cattle, Deer, Goats) contributes to the Population data and the DMI-per-head data. Population characterisation (birth, maturity, death) , Breeding status, and Age are fed to the Population database in Monthly time steps. The database of DMI-per-head receives in Monthly time steps details on Performance (eg, size, milk yield, growth rate), Energy requirement (Australian feeding standards) and Dietary composition (energy, protein, etc).

Both the Population and the DMI-per-head databases then are combined to produce the Total Population DMI.

Methane conversion rate is guided by SF6-tracer based estimates.

Results are (where GEI is Gross Energy Intake):

Sheep < 1 yr 5.1% GEI
Sheep > 1 yr 6.3% GEI
Dairy Cattle: 6.5% GEI
Beef cattle: as above
Deer: 6.4% GEI
Goats: as for sheep

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Figure A3: Projected emissions over CP1

	2009 net position
	Low projection	Most likely projection	Upper projection
1990	31.82577	31.82577	31.82577
1991	31.84813	31.84813	31.84813
1992	31.26994	31.26994	31.26994
1993	31.65684	31.65684	31.65684
1994	32.61783	32.61783	32.61783
1995	33.03037	33.03037	33.03037
1996	33.36522	33.36522	33.36522
1997	34.05836	34.05836	34.05836
1998	33.46228	33.46228	33.46228
1999	33.94296	33.94296	33.94296
2000	35.09692	35.09692	35.09692
2001	35.65977	35.65977	35.65977
2002	35.77121	35.77121	35.77121
2003	36.38802	36.38802	36.38802
2004	36.43975	36.43975	36.43975
2005	36.75649	36.75649	36.75649
2006	36.72529	36.72529	36.72529
2007	35.53177	35.53177	35.53177
2008	33.97352	34.85812	35.76741
2009	32.49499	36.09509	40.17385
2010	32.67685	37.01831	42.11439
2011	33.1339	37.65727	43.0823
2012	33.70318	38.39603	43.66942

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