The continental overview that we have assembled was made up of two separate pictures.
For the ILZ, which is 39% of the continent, computer processing of satellite data compiled a high resolution image of clearing.
For the ELZ, based on expert interpretation of satellite images, the remaining 61% of the continent was allocated into three levels of landcover disturbance resulting from grazing and, to a much lesser extent, burning.
In this chapter, these two primary datasets are brought together to provide a national overview, the big picture. These data are presented according to a sequence of questions that might flow from the generic one - what did we find?
Additional Disturbance Factors