Stemflow generation as influenced by sugarcane canopy development

Autor(es)

Fernandes, Rafael Pires ^[1] ; da Costa Silva, Robson Willians ^{[2, 3]} ; Bertelli de Andrade, Tatiana Morgan ^[1] ; Salemi, Luiz Felippe ^{[1, 3]} ; de Camargo, Plinio Barbosa ^[1] ; Martinelli, Luiz Antonio ^[1] ; de Moraes, Jorge Marcos ^{[2, 1]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Ctr Energia Nucl Agr, Lab Ecol Isotop, Piracicaba, SP - Brazil

^[2] Escola Engn Piracicaba, Piracicaba, SP - Brazil

^[3] Univ Brasilia, Fac Planaltina, Nucleo Estudos & Pesquisas Ambientais & Limnol Pl, Brasilia, DF - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ENVIRONMENTAL MONITORING AND ASSESSMENT; v. 193, n. 12 DEC 2021.
• Citações Web of Science: 0

Resumo

Rainfall is generally partitioned into throughfall, stemflow, and interception in ecosystems. Stemflow variability can affect the hydrology, ecology, and soil chemistry patterns. However, the influence of canopy structure and rainfall characteristics on stemflow production in sugarcane plantations which are important for renewable energy production remain poorly understood. By using funnels attached to the sugarcane stems, the present study determined the stemflow amount during the period of sugarcane growth and its relationship with plant development. Approximately, 14% of gross rainfall reached the soil as stemflow, and the funneling ratios was 60. In general, it was observed a positive relationship between stemflow rates with both leaf area index and plant height. This was attributed to an increasing number of acute branching angles of the sugarcane leaves as well as high stem tillering and density. However, at the end of growth cycle, stemflow rate was lower than in previous periods which can be attributed to changes in sugarcane canopy such as stems inclination and lodging, reducing the effectiveness of water conveyance along the stem. Our study showed the need to include stemflow to better understand the hydrology of sugarcane plantations. (AU)

• Processo FAPESP: 10/20256-1 - Hidrologia e dinâmica do nitrogênio e do carbono em microbacias com cobertura de cana-de-açúcar
• Beneficiário: Jorge Marcos de Moraes
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 09/54445-8 - Biogeoquimica do nitrogenio em areas variaveis de afluencia.
• Beneficiário: Luiz Felippe Salemi
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 11/15695-9 - Fluxos hidrológicos e de nitrogênio em vertentes de uma microbacia coberta por cana-de-açúcar
• Beneficiário: Rafael Pires Fernandes
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 10/51226-0 - Processos hidrologicos e transporte de nitrogenio e carbono em bacias com cobertura de cana-de-acucar e floresta estacional semidecidual.
• Beneficiário: Robson Willians da Costa Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado