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Biblioteca(s):  Embrapa Florestas.
Data corrente:  28/08/1994
Data da última atualização:  25/06/2025
Autoria:  HOOK, J. E.; KARDOS, L. T.
Título:  Nitrate leaching during long term spray irrigation for treatment of secondary sewage effluent on woodland sites.
Ano de publicação:  1978
Fonte/Imprenta:  Journal of Environmental Quality, v. 7, p. 30-34, 1978.
Idioma:  Inglês
Conteúdo:  Two waste water‐treated sites at The Pennsylvania State University Wastewater Renovation Project were monitored to measure nitrate and total N in soil water. Both long‐term waste water irrigation and varied irrigation rates were examined. Soil water was sampled by porous cup samplers. The concentration of N at the 120‐cm depth was taken as a measure of N which escaped the root zone and which would leach to the ground water. Recharge volume was calculated from irrigation, rainfall, and potential evapotranspiration. A hardwood forest site located on a well‐drained sandy loam soil was irrigated year round with secondary municipal effluent at a rate of 5 cm/week. In the last 6 of 9 years of effluent treatment 83% of the 4,954 kg N/ha added leached from the site. Nitrate concentration in soil water at the 120‐cm depth was generally > 15 mg N/liter. The hardwood forest was also ineffective in keeping nitrate concentration below 10 mg N/liter at the 120‐cm depth when the 5‐cm weekly application was split into two 2.5‐cm irrigations or when it was lowered to 2.5 cm/week year round. An abandoned old field site planted with white spruce ( Picea glauca Moench) and located on a well‐drained clay loam soil was irrigated with effluent at 5 cm/week from Apr. through Nov. each year, beginning in 1963. Nitrate concentration at the 120‐cm depth rarely exceeded 10 mg N/liter and only 36% of the 1,246 kg N/ha applied leached during the 6th through the 9th years of this effluent treatment. In th... Mostrar Tudo
Palavras-Chave:  Esgoto.
Thesagro:  Floresta; Lixiviação; Nitrato.
Categoria do assunto:  K Ciência Florestal e Produtos de Origem Vegetal
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Florestas (CNPF)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPF2473 - 1ADCAP - DD
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1.Imagem marcado/desmarcadoMARKEWITZ, D.; LAMON, E. C.; BUSTAMANTE, M. C.; CHAVES, J.; FIGUEIREDO, R. O.; JOHNSON, M. S.; KRUSCHE, A.; NEILL, C.; SILVA, J. S. O. Discharge-calcium concentration relationships in streams of the Amazon and Cerrado of Brazil: soil or land use controlled. Biogeochemistry, Dordrecht, v. 105, n. 1-3, p. 19-35, Sep. 2011.
Tipo: Artigo em Periódico IndexadoCirculação/Nível: A - 1
Biblioteca(s): Embrapa Amazônia Oriental.
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