Chapter 5: Agriculture, livestock, forestry and other land uses National inventory report (IBA 4) Chapter 5: Agriculture, livestock, forestry and other land uses National inventory report (IBA 4) Burnt area corresponding to the categories &quot;3C1ai - Biomass burning in forest lands (Native Forest)&quot;, &quot;3C1aii - Biomass burning in forest lands (Cultivated Forest)&quot; and &quot;3C1ci - Biomass burning in grasslands&quot;: For the period 1993 -2016, the data source for the burned area is the MAYDS National Forest Statistics Program. For the period 1990-1992, the values for the year 1993 are taken.