Marble waste and pig slurry increment soil quality and reduce metal availability in a tailing pond
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Gómez López, María Dolores; Zornoza Belmonte, Raúl; Faz Cano, Ángel; Martínez Martínez, Silvia; Acosta Avilés, José Alberto; [et al.]Área de conocimiento
Tecnologías del Medio AmbientePatrocinadores
This work wasfunded by the European UnionLIFE+ project MIPOLARE (LIFE09 ENV/ES/000439). J.A. Acosta acknowledges a “Saavedra Fajardo” contract from Comunidad Autónoma de Murcia (Spain).Fecha de publicación
2013-06Editorial
Mexican Society of Soil Science (SMCS)Cita bibliográfica
Zornoza,R.; Faz, Á.; Martínez-Martínez, S.; Acosta, J.A.; Gómez López, M.A. y Avilés Marín, S.M. (2013), Marble waste and pig slurry increment soil quality and reduce metal availability in a tailing pond. Terra Latinoamericana, 31: 105-114.Revisión por pares
siPalabras clave
ContaminationHeavy metals
Tailing pond
Amendments
Resumen
Tailing ponds pose environmental hazards, such as toxic metals reaching water sources through wind and water erosion and leaching. These abandoned mine sites contain materials with high contents of Fe- oxyhydroxides, sulfides, and heavy metals. As a consequence, soils have null vegetation and low soil organic matter. In this study, various physicochemical properties, together with microbial biomass carbon and available metals, were measured before and six months after application of marble waste (6.7 kg m-2), raw pig slurry (4.3 L m-2), and solid phase pig slurry (7 kg m-2) as reclamation strategy in a tailing pond in southeastern Spain, to reduce hazards for the environment and human health. Results showed that aggregate stability, pH, organic carbon, total nitrogen, cation exchange capacity, available phosphorus, exchangeable potassium and microbial biomass carbon increased with the application of the amendments, while available metals and metalloid (As, Cd, Pb and Zn) drastically ...
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