Wind Erosion in Western Queensland Australia

Chapter 7 – Land Erodibility Dynamics 1980-2006rainfall in that period (Figure 7.6). Subsequent peaks in land erodibility in 1994-96 and 2004-06 follow similar extended (>4 year) periods of low rainfall. The Channel Country landerodibility response to rainfall displays a lag similar to that in the Mulga Lands. This meansthat short (1 year) periods of increased annual rainfall, for example 200 mm in 1995, may notinduce an immediate regional scale decline in land erodibility.The peak in land with low erodibility in the Simpson-Strzelecki Dunefields in 1986 reflectsthe pattern of drying experienced in the Channel Country and Mitchell Grass Downs at thattime (Figure 7.5). Changes in the area covered by moderate to highly erodible land occurredin the El Niño drought years of 1994-96 and 2001-06 (Figure 7.6). A reduction (down to 300 mm (Figure 7.6). The net change in erodibleland in the Simpson-Strzelecki Dunefields during this period was