Biomass Estimation in a Young Stand of Mesquite (Prosopis spp.), Ironwood (Olneya tesota), Palo Verde (Cercidium floridium, and Parkinsonia aculeata), and Leucaena (Leucaena leucocephala)

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Abstract
Simple methods for estimating standing biomass in a stand of tree legumes containing the genera Prosopis, Cercidium, Olneya, Leucaena and Parkinsonia [constituting a significant biofuels resource] are reported. Fresh and dry biomass were related to height and stem diameter measurements for 212 leguminous trees ranging in biomass from 0.04 to 17.8 kg using linear regression. The dry matter content of the aboveground biomass of these genera ranged 40-56% and the stem dry matter percentage ranged 70-96%. The best functional form of the model was log10 dry weight (kg) = 2.55 log basal diameter (cm)-1.25, which had an r2 of 0.956 for 212 samples.

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