Data/hora: 27/05/2024 10:42:46

Biblioteca(s): 	Embrapa Meio Ambiente.	
Tipo da produção científica: 	Artigo em Periódico Indexado	
Circulação/Nível: 	A - 2	
Data corrente: 	28/02/2013	
Data da última atualização: 	28/02/2013	
Autoria: 	CABRAL, O. M. R.; ROCHA, H. R. da; GASH, J. H.; LIGO, M. A. V.; TATSCH, J. D.; FREITAS, H. C. de; BRASILIO, E.	
Afiliação: 	OSVALDO MACHADO RODRIGUES CABRAL, CNPMA; HUMBERTO R. ROCHA, USP; JOHN H. GASH, Centre for Ecology and Hydrology; MARCOS ANTONIO VIEIRA LIGO, CNPMA; J O N A T A N D . T A T S C H, USP; H E L B E R C . F R E I T A S, USP; E M I L I A B R A S I L I O, USP.	
Título: 	Water use in a sugarcane plantation.	
Ano de publicação: 	2012	
Fonte/Imprenta: 	Global Change Biology. Bioenergy, Oxford, v. 4, p. 555-565, 2012.	
Idioma: 	Inglês	
Conteúdo: 	Abstract: The evapotranspiration (E) from a sugarcane plantation in the southeast Brazil was measured by the eddy-covariance method during two consecutive cycles. These represented the second (393 days) and third year (374 days) re-growth (ratoon). The total E in the first cycle was 829 mm, accounting for 69% of rainfall, whereas in the second cycle, it was 690 mm, despite the total rainfall (1353 mm) being 13% greater. The ratio of E to available energy, the evaporative fraction, exhibited a smaller variation between the first and second cycles: 0.58 and 0.51, respectively. The estimated interception losses were 88 and 90 mm, respectively, accounting for approximately 7% of the total rainfall. The sugarcane yield in the second cycle (61.5 ± 4.0 t ha -¹) was 26% lower than the first cycle, as well as lower than the regional average for the third ratoon (76 t ha -¹). The below average yield was associated with less available soil water at the beginning of the cycle, with the amount of rainfall recorded during the first 120 days of re-growth in the second cycle being 16% of that recorded in the first (203 mm).	
Palavras-Chave: 	Rainfall interception.	
Thesagro: 	Água; Cana de açúcar; Evapotranspiração.	
Thesaurus Nal: 	eddy covariance; Evapotranspiration; Soil water deficit; Sugarcane.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Meio Ambiente (CNPMA)	
Exemplares: 	CNPMA - (12105-1) - UPC - AP - DD -  -  -  - DIS