Data/hora: 11/06/2024 01:21:01

Provedor de dados: 	63	
País: 	Brazil	
Título: 	Spatial variability of physical and chemical attributes of some forest soils in southeastern of Brazil	
Autores: 	Alvares,Clayton Alcarde; Gonçalves,José Leonardo de Moraes; Vieira,Sidney Rosa; Silva,Cláudio Roberto da; Franciscatte,Walmir.	
Data: 	2011-12-01	
Ano: 	2011	
Palavras-chave: 	Geostatistics; Semivariogram; Geographic information system; Soil management; Forestry precision.	
Resumo: 	Capão Bonito forest soils, São Paulo state, Brazil, have been used for forestry purposes for almost one century. Detailed knowledge about the distribution of soil attributes over the landscape is of fundamental importance for proper management of natural resources. The purpose of this study was to identify the variability and spatial dependence of chemical and physical attributes of Capão Bonito forest soils. A large soil database of regional land was raised and organized. Most of the selected variables were close to the lognormal frequency range. Soil texture presented a higher range in the A horizon, and the nugget effect and sill were greater in the B horizon. These differences are attributed to the parent material of the region (Itararé Geologic Formation), which presents uneven distribution of sediments. Chemical attributes related to soil fertility presented a higher spatial dependence range in the B horizon, probably as a result of more intensive management and erosion history of the superficial soil layer. Maps for some attributes were interpolated. These had specific areas of occurrence and a wide distribution along the perimeter of the Capão Bonito District Forest, allowing a future site-specific soil management.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000600015	
Editor: 	São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"	
Relação: 	10.1590/S0103-90162011000600015	
Formato: 	text/html	
Fonte: 	Scientia Agricola  v.68 n.6 2011	
Fonte: 	info:eu-repo/semantics/openAccess