'World Scientific and Engineering Academy and Society (WSEAS)'
Abstract
Montado ecosystem in the Alentejo Region, south of Portugal, has enormous agro-ecological and
economics heterogeneities. A definition of homogeneous sub-units among this heterogeneous ecosystem was
made, but for them is disposal only partial statistical information about soil allocation agro-forestry activities. The
paper proposal is to recover the unknown soil allocation at each homogeneous sub-unit, disaggregating a complete
data set for the Montado ecosystem area using incomplete information at sub-units level. The methodological
framework is based on a Generalized Maximum Entropy approach, which is developed in thee steps concerning the
specification of a r order Markov process, the estimates of aggregate transition probabilities and the disaggregation
data to recover the unknown soil allocation at each homogeneous sub-units. The results quality is evaluated using
the predicted absolute deviation (PAD) and the “Disagegation Information Gain” (DIG) and shows very acceptable
estimation errors