Idioma:

Mobility of humic substances, major and minor elements in lake Skjervatjern and its catchment area

Riise, Gunnhild ; Salbu, Brit ; Vogt, Rolf D. ; Ranneklev, Sissel B. ; Mykkelbost, Tone C.

Environment International; (United States), 1994, Vol.20 (3), p.287-298 [Periódico revisado por pares]

Amsterdam: Elsevier Ltd

Texto completo disponível

Citações Citado por

Enviar para

Título:
Mobility of humic substances, major and minor elements in lake Skjervatjern and its catchment area
Autor: Riise, Gunnhild ; Salbu, Brit ; Vogt, Rolf D. ; Ranneklev, Sissel B. ; Mykkelbost, Tone C.
Assuntos: ACIDIFICATION ; ALUMINIUM ; DEVELOPED COUNTRIES ; Earth sciences ; Earth, ocean, space ; ELEMENTS ; ENVIRONMENTAL EFFECTS ; ENVIRONMENTAL SCIENCES ; ENVIRONMENTAL TRANSPORT ; EUROPE ; Exact sciences and technology ; FIELD TESTS ; Geochemistry ; LAKES ; MASS TRANSFER ; METALS ; NORWAY ; SCANDINAVIA ; Soil and rock geochemistry ; SOILS ; SOLUTES ; SURFACE WATERS ; Surficial geology ; TESTING ; TRACE AMOUNTS ; WESTERN EUROPE 540320 -- Environment, Aquatic-- Chemicals Monitoring & Transport-- (1990-)
É parte de: Environment International; (United States), 1994, Vol.20 (3), p.287-298
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
None
CONF-9306371--
Descrição: Water and soil water samples from the humic lake experimental site in western Norway (HUMEX) were fractionated according to size by use of a cross flow ultrafiltration technique, and analysed for dissolved organic carbon (DOC), major ions, and several trace elements (e.g., Al, Fe, Mn, Zn, La, Sm, and Sc). Results from sampling seasons with different hydrological flow regimes are compared. Samples were taken both within the acid treatment site (A) and the control site (B). In the lake water samples, the relative importance of the low molecular weight fraction (L-Mw; Mw<3kDa) compared to the medium molecular weight fraction (M-Mw; 3kDa 10kDa) of DOC increased. In the lake, the major fraction of Al o was present as H-Mw forms, showing small differences in June 1991 (MF) and July 1992 (LF). There seemed to be an increased mobilization of Al in the form of inorganic Al species (Al i) in July 1992 (LF) compared to June 1991 (MF), especially in Basin A (lower DOC, increased concentration of SO 4 2−. Al i was mainly at M-Mw and L-Mw forms. In the podzol profile, the relative importance of the L-Mw fraction seemed to increase with depth in June 1991 (MF) and July 1992 (LF), a size distribution pattern which also was observed in the dystric histosol in June 1991 (MF). This indicates that the vertical transport of L-Mw forms are higher than H-Mw forms.
Editor: Amsterdam: Elsevier Ltd
Idioma: Inglês

Links

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Mobility of humic substances, major and minor elements in lake Skjervatjern and its catchment area

Riise, Gunnhild ; Salbu, Brit ; Vogt, Rolf D. ; Ranneklev, Sissel B. ; Mykkelbost, Tone C.

Amsterdam: Elsevier Ltd

Buscando em bases de dados remotas. Favor aguardar.