Data/hora: 03/06/2024 10:08:24

Provedor de dados: 	1	
País: 	Brazil	
Título: 	Multivariate technique for determination of soil pedoenvironmental indicators in Southern Amazonas	
Autores: 	Oliveira, Ivanildo Amorim de; Marques Júnior, José; Campos, Milton César Costa; Aquino, Renato Eleoterio de; Freitas, Ludmila de; Ferraudo, Antônio Sérgio.	
Data: 	2017-01-01	
Ano: 	2017	
Palavras-chave: 	5.00.00.00-4; 5.01.00.00-9; 5.01.01.00-5; 5.01.01.06-4; 5.01.01.02-1; 5.01.01.03-0 main component; Amazonian; Archaeological dark earth Manejo e Conservação do Solo; Física do Solo; Química do Solo.	
Resumo: 	The use of statistical techniques to evaluate soil attribute behaviour is an important tool for choosing the most adequate form of soil management. Thus, the aim of this study was to jointly assess the physical and chemical attributes and the magnetic susceptibility characteristics of three environments and to use multivariate statistics to define which attributes have the greatest potential as environmental change indicators. The study was conducted in three areas: one with archaeological black earth (and planted maize); one with pasture; and one of the forest. Sixty-four (64) deformed and non-deformed soil samples each were collected within these areas, with a 70 x 70 m grid spaced every 10 meters at depths of 0.0-0.2 and 0.4-0.6 m, to determine the chemical attributes (fertility), as well as the physical attributes (texture) and magnetic susceptibility. The data were analyzed through multivariate statistics. The archaeological dark earth areas have different behaviours between pastures and forests: chemical attributes have greater interaction in archaeological dark earth due to the high fertility of the anthropic horizons. The attributes that may indicate environmental changes are calcium, potential acidity and clay for archaeological dark earth, forest and pasture areas, respectively. 	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30763

10.4025/actasciagron.v39i1.30763	
Editor: 	Universidade Estadual de Maringá	
Relação: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30763/pdf	
Formato: 	application/pdf	
Fonte: 	Acta Scientiarum. Agronomy; v. 39, n. 1 (2017); 99-108

Acta Scientiarum. Agronomy; v. 39, n. 1 (2017); 99-108

1807-8621

1679-9275	
Fonte: 	Direitos autorais 2017 Acta Scientiarum. Agronomy