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| Stumpf,Lizete; Pauletto,Eloy Antonio; Pinto,Luiz Fernando Spinelli; Garcia,Gabriel Furtado; Ambus,Jordano Vaz; Silva,Tiago Stumpf da; Pinto,Marilia Alves Brito; Tuchtenhagen,Ivana Kruger. |
| Resumo O objetivo deste trabalho foi avaliar a condição física e a potencialidade de uso agrícola de um solo construído após mineração com carvão, além do desenvolvimento radicular de gramíneas tropicais nesse solo, tendo-se considerado diferentes períodos de revegetação. O solo foi construído no início de 2003, e o experimento instalado em novembro/dezembro de 2007. A condição física do solo construído foi avaliada nas parcelas ocupadas por gramíneas perenes, como Urochloa humidicola, Panicum maximum e U. brizantha. Em julho de 2012, foram coletadas amostras de solo com estrutura preservada e não preservada para a determinação dos atributos físico-químicos, nas camadas de 0,00-0,10, 0,10-0,20 e 0,20-0,30 m. Monólitos de solo foram coletados para... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Panicum maximum; Urochloa brizantha; Urochloa humidicola; Recuperação de áreas degradadas; Revegetação; Uso agrícola potencial. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901078 |
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| Pauletto,Eloy Antonio; Stumpf,Lizete; Pinto,Luiz Fernando Spinelli; Silva,Tiago Stumpf da; Ambus,Jordano Vaz; Garcia,Gabriel Furtado; Dutra Junior,Leonir Aldrighi; Scheunemann,Tiago; Albert,Renata Pinto. |
| ABSTRACT: Studies addressing the potential of grass roots in improving the structural quality of constructed minesoils are not frequent in the literature, although they are essential for understanding the re-establishment of soil functions in the environment. The objective of this study was to quantify the root attributes of the species Urochloa humidicola, Panicum maximum, and Urochloa brizantha and relate them to the physical properties of a constructed minesoil in reclamation of an area degraded by coal mining. The study was performed in a field experiment in a coal mining area located in southern Brazil. Soil samples were collected, five years after experiment installation, to determine bulk density, macroporosity, distribution of water stable... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Minesoil; Monoliths; Compaction. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100550 |
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| Stumpf,Lizete; Pauletto,Eloy Antonio; Fernandes,Flavia Fontana; Suzuki,Luis Eduardo Akiyoshi Sanches; Silva,Tiago Stumpf da; Pinto,Luiz Fernando Spinelli; Lima,Claudia Liane Rodrigues de. |
| The construction of a soil after surface coal mining involves heavy machinery traffic during the topographic regeneration of the area, resulting in compaction of the relocated soil layers. This leads to problems with water infiltration and redistribution along the new profile, causing water erosion and consequently hampering the revegetation of the reconstructed soil. The planting of species useful in the process of soil decompaction is a promising strategy for the recovery of the soil structural quality. This study investigated the influence of different perennial grasses on the recovery of reconstructed soil aggregation in a coal mining area of the Companhia Riograndense de Mineração, located in Candiota-RS, which were planted in September/October 2007.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil construction; Macroaggregates; Microaggregates; Mean weight diameter; Cover plants. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000100033 |
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| Cassol,Elemar Antonino; Silva,Tiago Stumpf da; Eltz,Flávio Luiz Foletto; Levien,Renato. |
| ABSTRACT: Erodibility represents the intrinsic susceptibility of the soil to the erosion process, represented by the K factor in the Universal Soil Loss Equation (USLE). In Brazil, there are few field experiments determined with a series larger than ten years of data, which are the most reliable for quantifying the K factor. The aim of this study was to determine the K factor of the USLE by the direct method, relating soil losses determined in the field under standard conditions to erosivity of rains, and by the analytic method, applying the Wischmeier nomograph. The data on soil loss by water erosion were obtained in a field experiment under natural rainfall conditions from 1976 to 1989 in an Ultisol at the Agronomic Experimental Station in Eldorado do... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Water erosion; Soil loss; Soil properties; Erosion modeling; Surface runoff. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100518 |
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