Mora Hernández, Juan Luis Girona–García, A. Martí Dalmau, Clara Ortiz Perpiñá, Josep Oriol Armas–Herrera, C.M. Badía Villas, David Changes in pools of organic matter and major elements in the soil following prescribed pastoral burning in the central Pyrenees Geoderma 10.1016/j.geoderma.2021.115169 2021 2021