Isothermal and Differential Scanning Calorimetry is applied to analyze the evolution of soil using its microorganisms and
organic matter as bioindicators of soil quality. This study was carried out with two similar soils under different agricultural
activities: culture and pasture. Sampling and measurements were performed through 1 year in order to check the sensitivity
of common calorimetric indicators of microbial activity and organic matter to the different climatic seasons in the sampling
place: spring, summer, fall and winter. Results show that these indicators are sensitive to changes related to climatic conditions
but the variability depended also on the nature of the soil: pasture or agricultural land. The results achieved through the
present study show that the procedure here proposed could be used on any soil everywhere, providing the determination of the
own parameters of soil and zones.