Data/hora: 18/06/2024 09:04:52

Provedor de dados: | 90
País: | Brazil
Título: | Initial Recovery of Organic Matter of a Grass-Covered Constructed Soil after Coal Mining
Autores: | Leal,Otávio dos Anjos; Castilhos,Rosa Maria Vargas; Pinto,Luiz Fernando Spinelli; Pauletto,Eloy Antonio; Lemes,Elisa Souza; Kunde,Roberta Jeske.
Data: | 2016-01-01
Ano: | 2016
Palavras-chave: | Degraded areas; Physical fractionation; Carbon management index; Laser-induced fluorescence.
Resumo: | ABSTRACT Revegetation is essential to improve the quality of constructed soils. This study investigated effects of perennial grasses on total organic carbon (TOC) stock, organic matter (OM) fractions and on quality of a recently constructed soil, after coal mining. Soil samples were collected from the 0.00-0.03 m layer two years after the beginning of the experiment. The treatments consisted of Cynodon dactylon cv vaquero (T1); Urochloa brizantha (T2); Panicum maximun (T3); Urochloa humidicola (T4); Hemarthria altissima (T5); Cynodon dactylon cv tifton (T6); bare constructed soil (T8); and natural soil (T9). The treatments with grass species increased the TOC stock by 57 % and increased the OM lability in comparison with T8. Higher C accumulation in the coarse and free light fractions and a higher C management index were observed in T2 and T3, indicating greater suitability of these species for the initial recovery of OM of the constructed soil.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100529
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/18069657rbcs20150384
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.40 2016
Fonte: | info:eu-repo/semantics/openAccess