Interpretation of sulfur cycling in two catchments in the Black Forest (Germany) using stable sulfur and oxygen isotope data

Mayer, Bernhard; Feger, Karl‐Heinz; Giesemann, Anette; Jäger, Hans-J.

doi:10.1007/bf02181039

Cited by 136 publications

(81 citation statements)

References 41 publications

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“…About 60.5 mmol c SO 4 m 2 yr 1 were needed to yield SO 4 stream concentrations at the measured level (calibrations 4a, 4b). This amount is consistent with those reported by Feger et al (1990), Mayer et al (1995) and Prietzel (1998b) ) to balance S flux budgets. The modelling shows that SO 4 release from the catchment cannot be explained solely with ad-/desorption.…”

Section: Discussionsupporting

confidence: 92%

“…In contrast to Schluchsee, at Villingen adsorption/ desorption processes can explain the concentrations and isotope composition of SO 4 in seepage water of the subsoil (Mayer et al, 1995). This is due to the high sesquioxide content in the soil (Kurth et al, 1989).…”

Section: Discussionmentioning

confidence: 96%

“…In general, four major processes can be responsible for S release from soil: (i) desorption of inorganic SO 4 , (ii) oxidation of reduced S species, (iii) excess mineralisation of organically bound S, and (iv) weathering of S-containing minerals. Feger et al (1990) and Mayer et al (1995) assumed that oxidation and weathering are negligible (max. 0.013 mmol c SO 4 m 2 yr 1 ; Prietzel, 1998b) in the two catchments.…”

Section: Discussionmentioning

confidence: 99%

“…18 O sulphate -values in soil leachates Mayer et al (1995) concluded that a considerable portion of SO 4 in the subsoil seepage must be derived from excess mineralisation of C-S. On basis of SO 4 fluxes and soil S pools (Table 1b) together with results on N dynamics Feger et al (1990) and Feger (1993a) assumed that microbial turnover of relict subsoil humus pools (originating from the former deeprooting beech-fir forest stand) might be responsible for the nitrate and SO 4 release at Schluchsee (Table 2c). This is supported by the fact that half of the S org pool is stored in the B-horizon (Table 1b).…”

Section: Discussionmentioning

confidence: 99%

“…Research in the catchments started in 1988 (Feger, 1993a) and deposition and stream chemistry data has been collected from 1988 until 1995 and 1996 at Villingen and Schluchsee, respectively. A detailed description of the catchments is given in Feger et al (1990), Feger (1993a, and Mayer et al (1995).…”

Section: Description Of Catchmentsmentioning

confidence: 99%

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Modelling sulphate stream concentrations in the Black Forest catchments Schluchsee and Villingen

Prechtel

Armbruster

Matzner

2003

Hydrol. Earth Syst. Sci.

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The sulphate (SO 4 ) released by mineralisation and desorption from soil can play an important role in determining concentrations of SO 4 in streams. The MAGIC model was calibrated for two catchments in the Black Forest, Germany (Schluchsee and Villingen) and SO 4 concentrations in the streams for the years 2016 and 2030 were predicted. Special emphasis was placed on the dynamics of soil sulphur (S) pools. At Schluchsee, 90% of soil S is stored in the organic S (S org ) pool, whereas at Villingen, 54% is in the inorganic (S inorg ) pool. The Villingen stream chemistry was modelled successfully by measured Langmuir isotherm parameters (LIPs) for S inorg . Schluchsee data could not be modelled satisfactorily using measured or freely adapted LIPs only, as the S inorg pool would have to be more than five times larger than what was measured. With 60.5 mmol c SO 4 m -2 yr -1 as internal soil source by mineralisation and the measured LIPs, stream data was modelled successfully. The modelling shows that in these two catchments pre-industrial concentrations of SO 4 in runoff can be reached in the next two decades if S deposition decreases as intended under currently agreed national and international legislation. S org is the most likely dominant source of SO 4 released at Schluchsee. Mineralization from the S org pool must be included when modelling SO 4 concentrations in the stream. As the dynamics and the controlling factors of S release by mineralisation are not yet clear, this process remains a source of uncertainty for predictions of SO 4 concentrations in streams. Future research should concentrate on dynamics of S mineralisation in the field, such that mathematical descriptions of long-term S-mineralisation can be incorporated into biogeochemical models.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Description Of Catchmentsmentioning

confidence: 99%

See 3 more Smart Citations

Modelling sulphate stream concentrations in the Black Forest catchments Schluchsee and Villingen

Prechtel

Armbruster

Matzner

2003

Hydrol. Earth Syst. Sci.

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Verbundprojekt ARINUS im Schwarzwald: Auswirkungen von atmogenen Einträgen und Restabilisierungsmaßnahmen auf den Wasser‐ und Stoffhaushalt von Fichtenwäldern

Feger

Raspe

2004

Handbuch Der Umweltwissenschaften

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Redox Control on the Isotopic Composition of Dissolved Sulfate in Percolating Sewage — An Experimental Study

Stögbauer

Berner

Stüben

2004

Acta hydrochim. hydrobiol.

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An Experimental StudyGeochemie, Universität Karlsruhe (TH),The risk potential of sewage exfiltrating from leaky sewers for the groundwater depends on Fritz-Haber-Weg 2, a series of physico-chemical, geochemical, and microbial processes, which are all linked in 76131 Karlsruhe, Germany some way to the redox state of the system. Since bacterial sulfate reduction is a decisive transformation process under anaerobic conditions and is known to cause isotope fractionations, changes in the S-isotope composition of sulfate may be used to characterise the redox state in sediments affected by percolating sewage.

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Interpretation of sulfur cycling in two catchments in the Black Forest (Germany) using stable sulfur and oxygen isotope data

Cited by 136 publications

References 41 publications

Modelling sulphate stream concentrations in the Black Forest catchments Schluchsee and Villingen

Modelling sulphate stream concentrations in the Black Forest catchments Schluchsee and Villingen

Verbundprojekt ARINUS im Schwarzwald: Auswirkungen von atmogenen Einträgen und Restabilisierungsmaßnahmen auf den Wasser‐ und Stoffhaushalt von Fichtenwäldern

Redox Control on the Isotopic Composition of Dissolved Sulfate in Percolating Sewage — An Experimental Study

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