Elimination (I)

0-5 and 80-100 cm. Three pseudoreplicates from each area were collected. The extraction of the humic acids (AH) was carried out according to the method suggested by the International Humic Substances Society. The HA were analyzed by solid state NMR in a Varian INOVA (11.74 T) spectrometer. To help in data interpretation, the technique "Multivariate Curves Resolution" was used. The superficial layer (0 – 5 cm), the implemented crop presented AH similar to those obtained from the forest, with predominance of aliphatic structure. In depth (80 - 100 cm) there is a relative accumulation of aged (partially oxidized) pyrogenic C and carbohydrates, which probably percolated through the soil. The HA composition, determined by NMR, proved to be efficient in the evaluation of the soil potential to provide ES and can be used as an indicator of ES or as a reference method for the validation of other low-cost indicators. Soil data (such as carbon content, texture, depth, and capacity to store water) were integrated with data derived from remote sensing (e.g. land use) and relief (elevation and slope) and with the expert opinion of land managers, decision makers and researchers that work with the INP or surrounding areas. Integrating environmental factors and expert opinion is a suitable approach to assess the soil vulnerability in INP. The most fragile areas were identified with soils with high levels of carbon, profiles less developed (shallow), with accentuated slopes, and a vegetation cover with herbaceous graminoid plants, with a predominance of Cyperaceae and Poaceae (high altitude fields). This approach will help decision makers to identify priority areas for intervention, in order to reduce soil degradation in the areas with high vulnerability. The results could also be used as a basis to support the INP management plan, as well as to contribute to other researches, especially those related with ecosystem services in the Atlantic Forest Biome.