Figure 4b: Implied emission factors for nitrogen excreted per head (sheep and deer)

Text description of figure

Shows the trend in nitrogen excreted per head (kilograms nitrogen per head per year) for sheep and deer between 1990 and 2003. Deer emissions are higher than Sheep. Deer emissions per head of deer start at 27 in 1990 and trend up (almost linearly) to around 29 in 2003. Sheep emissions per head of sheep start at 12 in 1990 and trend up (almost linearly) to around 14 in 2003.