Data/hora: 28/05/2024 01:05:29

Biblioteca(s): | Embrapa Meio Norte / UEP-Parnaíba.
Data corrente: | 09/02/1996
Data da última atualização: | 09/02/1996
Autoria: | RICHTER, D. W.; RICHTER, D. D.; MIEGROET, H. van; COLE, D. W.
Afiliação: | Oak Ridge National Laboratory; idem; University of Washington; idem.
Título: | Contribution of acid deposition and natural processes to cation leaching from forest soils: a review.
Ano de publicação: | 1983
Fonte/Imprenta: | In: ANNUAL MEETING OF THE AIR POLLUTION CONTROL ASSOCIATION, 76, 1983,Atlanta, Georgia. Proceedings...Atlanta, Georgia, 1983. p.2-18.
Idioma: | Inglês
Conteúdo: | Acidic deposition can cause increased leaching of base cations from soils if the associated anion (SO4 - or NO3 -) is mobile in the soil. This is not always the case, since SO4 - can be immobilized by adsorption to Fe- and Al-oxides in soils and NO3- is frequently immobilized by biological demand for N (the most frequently limiting nutrient in forest ecosystems). In any event, cation leaching caused by acid deposition must be viewed as an increment to natural leaching caused by internally generated carbonic, organic, and nitric acids. Given certain simplifying assumptions, the contributions of acid depositions vs internally generated acids can be quantified from measurements of ionic fluxes through forest ecosystem. Once this analysis is done, the leaching...
Palavras-Chave: | Acidic deposition; Base cations; Cation leaching; Cations basicos; Deposicao acida; Lixiviacao cationica; Oxidos.
Thesagro: | Lixiviação; Nitrogênio.
Thesaurus Nal: | leaching; nitrogen; oxides.
Categoria do assunto: | --
Registro original: | Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP)
Exemplares: | CPAMN-UEPP - (5008-1) - EMB - SP - -- -  -  - 1993.04836 - DIS