Bracatinga (Mimosa Scabrella) is a native tree species with an important role in the economy of farmers. Thus, the present research was developed in order to quantify the contents of macronutrients present in the different compartments of biomass of native Bracatinga stands, and later, determine the economic valuation of the forest residues retained in the area after harvest. Data was collected from 304 temporary sample plots of Bracatinga stands with different ages. In decreasing order, the estimated values of macronutrients found in the above ground biomass of Bracatinga stands followed the sequence: N > Ca > K > Mg > P. After firewood exploration in Bracatinga stands, 25% Ca, 32% Mg, 37% N, 45% P and 18% K were left as remnants (twigs and crown) in the area, with an average equivalent monetary fertilizer (in R$.ha-1) ranging from 303.56 to 1,140.78 depending on the location and site classification of the propriety.
stand-level models; forest residuals; fertilization