Integrating satellite radar vegetation indices and environmental descriptors with visible-infrared soil spectroscopy improved organic carbon prediction in soils of semi-arid Brazil - Santos, Erli Pinto dos; Moreira, Michel Castro; Fernandes-Filho, Elpídio Inácio; Demattê, José Alexandre Melo; Santos, Uemeson José dos; Moura-Bueno, Jean Michel; Cruz, Renata Ranielly Pedroza; Silva, Demetrius David da; Sampaio, Everardo Valadares de Sá Barreto (Geoderma, 2025)