Data/hora: 07/06/2024 14:04:18

Biblioteca(s): 	Embrapa Florestas; Embrapa Solos.	
Data corrente: 	10/12/2013	
Data da última atualização: 	27/01/2016	
Autoria: 	MAIA, C. M. B. de F.; NOVOTNY, E. H.; RITTL, T. F.; HAYES, M. H. B.	
Afiliação: 	CLAUDIA MARIA BRANCO DE F MAIA, CNPF; ETELVINO HENRIQUE NOVOTNY, CNPS; TATIANA FRANCISCCHINELLI RITTL; MICHAEL HILARY BERMINGHAM HAYES, UNIVERSITY OF LIMERICK.	
Título: 	Soil organic matter: chemical and physicl characteristics and analytical methods.	
Ano de publicação: 	2013	
Fonte/Imprenta: 	Current Organic Chemistry, v. 17, p. 2985-2990, 2013.	
Idioma: 	Inglês	
Conteúdo: 	Soil organic matter (SOM) holds a prominent place among the many indicators that are studied in relation to soil function. Different viewpoints are reflected in characterizing SOM, depending on the study procedures used, or the focus of the researchers. There are many possibilities for the isolation and fractionation of SOM and this has led to a plurality of interpretations and conclusions. Transformations to organic materials that lead to the more recalcitrant components of SOM are outlined, and the associations which these materials can have in the soil environment, and aspects of their compositions are referred to. A review is given of the organic matter pools in soils, of their functions, and of the controls which they have in soil systems. A succinct review is given of physical fractionation procedures for SOM. This approach is highly relevant, though rarely used in modern studies of SOM. The merits and demerits of wet oxidation procedures, relative to dry combustion for determining soil organic carbon contents are discussed, and reference is made to the emerging chemometric techniques based on the use of Near (NIR) and Mid (MIR) infrared spectroscopy.	
Palavras-Chave: 	Indicador de qualidade.	
Thesagro: 	Carbono; Matéria Orgânica; Medição; Solo.	
Categoria do assunto: 	--
P Recursos Naturais, Ciências Ambientais e da Terra	
Registro original: 	Embrapa Solos (CNPS)	
Exemplares: 	CNPF - (51639-1) - UPC - AP - DD -  -  -  - DIS
CNPS - (18846-1) - UMT - AP - DD -  -  - 2015.00077 - DIS