The objective of the research was to evaluate the effect of geographic altitude on the carbon stock in two physiographic units of the Reserved Forest of the Universidad Nacional Agraria de la Selva, Tingo Maria-Huanuco. The methodology used was the field manual for the remeasurement and establishment of plots of the Amazon Forest Inventory Network (RAINFOR), for which 2 hectares were permanently established (one hectare in low and high hills) in which the diameter (greater than or equal to 10 cm) and the height of the trees were measured. Finally, the density of the wood was obtained from previous studies. The pantropical model formula was used to estimate the carbon stock. The results show that geographic altitude significantly affects carbon stock (p < 0.05) in low and high-hill forests, concluding that this may be due to differences in meteorological variables such as precipitation, temperature, and humidity.

Aim: To evaluate the effect of germination on total phenols, antioxidant capacity, trace elements, and thermal behavior of the seeds of Pigeon peas (Cajanus cajan L.) and Chacha and Recline varieties of the common bean (Phaseolus vulgarisL.). Methodology: The evaluation of the total phenols was done using Folin Ciocalteu’s spectrophotometric method; the antioxidant capacity through the DPPH y ABTSº+ radicals;the macro and microelements using the spectrophotometric optical emission coupled inductively with plasma method ICP-OES; and the thermic behavior through differential scanning calorimetry (DSC). Results: The germination process influenced the total polyphenol content, antioxidant capacity, and macro and microelements in each specie that was studied. For example, for the Recline variety seedlings, the phenol content increased by 57.75% in comparison to the seed. The antioxidant capacity against DPPH and ABTS º+ was greater in the seedlings in the following order: Chaucha variety>Pigeon pea>Recline variety. For the seeds, the macro and micro-element content had the following order: K>Mg>Ca>Na y Fe>Zn>Cu>Cr; for the seedlings, the greatest decrease was in K, Cr and the greatest increase was in Ca and Mn; the Na:K relationship was less than one. Finally, the thermic behavior, in reference to the gelatinization enthalpy (ΔH) was greater for the seed than the seedlings.