Diffuse Reflectance Spectroscopy for Mapping Soil Carbon Stock in the Gilbués Desertification Region at Brazilian Cerrado

The carbon stock (C Stock) is a key soil attribute, especially in areas under degradation. objective of this study was to map the C Stock and other physical chemical attributes on surface micro-watershed located Gilbués Desertification Nucleus calibrate pedometric functions them, applying spectra obtained by Diffuse Reflectance Spectroscopy (DRS) near-infrared (NIR) region. This developed Piripiri Stream Micro-watershed (PSMW), which presents different levels A total 214 composite samples were collected from 0–0.10 m depth layer. Spectral laboratory analyses performed following traditional methods. results 100 subjected descriptive analysis, modeling, geostatistics, while remainder used exclusively for prediction modeling predicted attribute maps. ranged 0.3 11%, with highest values associated least sandy sites. We assert that stakeholders, including government agencies, could utilize DRS mapping main attributes, such as Stocks, granulometry, or organic carbon, regions characterized similar parent material properties. application can support informed decision-making regarding land management extensive facing threats.