Variabilidade espacial de atributos físicos do solo sob diferentes usos e manejos
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
20/05/2014
20/05/2014
01/03/2011
|
Resumo |
The soil tillage and the vegetable species have expressive effect on spatial variability of soil. The objective of this work was to study the spatial variability of some physical attributes of savannah soil (Oxisol) of Mato Grosso do Sul, Brazil, under different management. The soil samples were collected in a grid, with regular intervals of 2.0 m, total of 64 points, in the depths of 0-0.10 m and 0.10-0.20 m for bulk density and in the depths 0-0.15 m; 0.15-0.30 m; 0.30-0.45 m and 0.45-0.60 m for the soil resistance to the penetration and soil water content, in the areas with native vegetation (savannah), no-tillage, conventional system and pasture. The greatest variability measured through the variation coefficient and nugget effect was observed for the soil resistance to penetration. The no-tillage showed major range when compared to native vegetation, conventional system and pasture. The uses and managements induce, in the crescent order of no-tillage, conventional system and pasture towards degradation of soil physical attributes in relation to native vegetation. |
Formato |
237-243 |
Identificador |
http://dx.doi.org/10.1590/S1415-43662011000300003 Revista Brasileira de Engenharia Agricola E Ambiental. Joao Pessoa Pb: Universidade Federal da Paraíba (UFPB) Ccsa, v. 15, n. 3, p. 237-243, 2011. 1415-4366 http://hdl.handle.net/11449/10270 S1415-43662011000300003 WOS:000208666100003 S1415-43662011000300003.pdf |
Idioma(s) |
por |
Publicador |
Universidade Federal da Paraíba (UFPB) Ccsa |
Relação |
Revista Brasileira de Engenharia Agrícola e Ambiental |
Direitos |
openAccess |
Palavras-Chave | #Agro-ecosystem #soil tillage #Geostatistics #Spatial dependence |
Tipo |
info:eu-repo/semantics/article |