Consulta: creatorFacets:"Penning,Letiane Helwig"
Registros recuperados: 2
Data/hora: 09/06/2024 14:49:14

Organic Matter Fractions and Quality of the Surface Layer of a Constructed and Vegetated Soil After Coal Mining. II - Physical Compartments and Carbon Management Index
Provedor de dados: 90
Autores: Leal,Otávio dos Anjos; Castilhos,Rosa Maria Vargas; Pauletto,Eloy Antonio; Pinto,Luiz Fernando Spinelli; Pillon,Clenio Nailto; Penning,Letiane Helwig; Santos,Daiane Carvalho dos.
Soils constructed after mining often have low carbon (C) stocks and low quality of organic matter (OM). Cover crops are decisive for the recovery process of these stocks, improving the quality of constructed soils. Therefore, the goal of this study was to evaluate the effect of cover crops on total organic C (TOC) stocks, C distribution in physical fractions of OM and the C management index (CMI) of a soil constructed after coal mining. The experiment was initiated in 2003 with six treatments: Hemarthria altissima (T1), Paspalum notatum (T2), Cynodon dactylon (T3), Urochloa brizantha (T4), bare constructed soil (T5), and natural soil (T6). Soil samples were collected in 2009 from the 0.00-0.03 m layer, and the TOC and C stocks in the physical particle size...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recovery of degraded areas; Cover crops; Carbon stocks; Lability.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300895

Organic Matter Fractions and Quality of the Surface Layer of a Constructed and Vegetated Soil After Coal Mining. I - Humic Substances and Chemical Characterization
Provedor de dados: 90
Autores: Leal,Otávio dos Anjos; Castilhos,Rosa Maria Vargas; Pauletto,Eloy Antonio; Pinto,Luiz Fernando Spinelli; Fernandes,Flávia Fontana; Penning,Letiane Helwig; Rosa,Carla Machado da.
After open coal mining, soils are “constructed”, which usually contain low levels and quality of organic matter (OM). Therefore, the use of plant species for revegetation and reclamation of degraded areas is essential. This study evaluated the distribution of carbon (C) in the chemical fractions as well as the chemical characteristics and humification degree of OM in a soil constructed after coal mining under cultivation of perennial grasses. The experiment was established in 2003 with the following treatments: Hemarthria altissima (T1), Paspalum notatum (T2), Cynodon dactilon (T3), Urochloa brizantha (T4), bare constructed soil (T5), and natural soil (T6). In 2009, soil samples were collected from the 0.00-0.03 m layer and the total organic carbon stock...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Humic fractions; Infrared; Laser-induced fluorescence; Perennial grasses.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000300886