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Titolo:
Stable sulfur isotopes in forest spring waters from the Fichtelgebirge (Germany)
Autore:
Durka, W; Giesemann, A; Schulze, ED; Jager, HJ;
Indirizzi:
Univ Bayreuth, Lehrstuhl Pflanzenokol, D-95440 Bayreuth, Germany Univ Bayreuth Bayreuth Germany D-95440 enokol, D-95440 Bayreuth, Germany FAL, Inst Prod & Okotoxikol, D-38116 Braunschweig, Germany FAL Braunschweig Germany D-38116 otoxikol, D-38116 Braunschweig, Germany Univ Giessen, Inst Pflanzenokol, D-35392 Giessen, Germany Univ Giessen Giessen Germany D-35392 anzenokol, D-35392 Giessen, Germany
Titolo Testata:
ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES
fascicolo: 3, volume: 35, anno: 1999,
pagine: 237 - 249
SICI:
1025-6016(1999)35:3<237:SSIIFS>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
ATMOSPHERIC DEPOSITION; SULFATE; FRACTIONATION; REDUCTION; SOILS;
Keywords:
forest hydrochemistry; natural variations; spring waters; sulfate reduction; sulfur 34;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Physical, Chemical & Earth Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Durka, W UFZ Umweltforsch Zentrum Leipzig Halle GmbH, Theodor Lieser Str 4, D-06120Halle, Germany UFZ Umweltforsch Zentrum Leipzig Halle GmbH TheodorLieser Str 4 Halle Germany D-06120
Citazione:
W. Durka et al., "Stable sulfur isotopes in forest spring waters from the Fichtelgebirge (Germany)", ISOT ENV H, 35(3), 1999, pp. 237-249

Abstract

The potential role of processes discriminating S isotopes, for example dissimilatory SO42- reduction and mineralization, in determining SO42- concentrations was studied in forest spring water. S-isotope composition of sulfate from atmospheric input and forest springs representing a wide range of SO42- concentrations was investigated in the Fichtelgebirge (NE Bavaria, Germany). delta(34)S values in atmospheric input ranged from +3.7 to + 5.7 parts per thousand. In spring waters with SO42- > 150 mu mol l(-1) delta(34)S values were between +4 and +5 parts per thousand, whereas delta(34)S values increased up to +7.2 parts per thousand below 150 mu mol l(-1) SO42-. SO42-mineralization seemed to have no effect on isotopic composition since all delta(34)S values of spring water were higher than input values. Dissimilatory SO42- reduction occurred in springs with SO42- < 150 mu mol l(-1). Spatial heterogeneity in forest soils or flow paths has to be invoked to explain increased delta(34)S values since NO3- concentrations would not allow forSO42- reduction to occur.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 11:59:22