Similarity between C, N and S stable isotope profiles in European spruce forest soils: implications for the use of δ34S as a tracer

Novák, Martin; Bůzek, František; Harrison, A. F.; Přechová, Eva; Jačková, Ivana; Fottová, Daniela

doi:10.1016/s0883-2927(02)00162-2

Cited by 75 publications

(44 citation statements)

References 47 publications

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“…Our study suggests that the small change that has occurred in the isotope value in runoff is related to a rapid immobilization of sprinkler water SO 4 2À in the humus layer rather than to fractionation processes in the humus layer or mineral soil. This is also in agreement with resent findings by Novak et al (2003) suggesting that soil-derived discharge must come from organic S in the upper soil horizon. A resent tracer study by Mayer et al (2001) did also show that 50% of the added SO 4 2À was retained as organic S in the topsoil in a 20-month long tracer experiment adding 35 kg SO 4 2À ha À1 .…”

Section: Implications For Interpretations Of D 34 S So 4 Valuessupporting

confidence: 92%

The humus layer determines SO42− isotope values in the mineral soil

et al. 2005

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Biocycling of sulfur (S) has been proposed to play an important role in the recovery of ecosystems following anthropogenic S deposition. Here, we investigated the importance of the humus layer in the biocycling of S in three forested catchments in the Ga˚rdsjo¨n area of southwestern Sweden with differing S inputs and S isotope signature values. These experimental sites consisted of two reference catchments and the Ga˚rdsjo¨n roof experiment catchment (G1), where anthropogenic deposition was intercepted from 1991 until May 2002 by a roof placed over the entire catchment area. Under the roof, controlled levels of deposition were applied, using a sprinkler system, and the only form of S added was marine SO 4 2À with a d 34 S SO 4 of +19.5&.We installed ion exchange resin bags at the interface between the humus layer and mineral soil at each of the catchments to collect SO 4 2À passing through the humus. The resin bags were installed on four occasions, in 1999 and 2000, covering two summer and two winter periods. The ions collected by each bag during these sampling periods were then eluted and their d 34 S SO 4 values and SO 4 2À concentrations determined. The most striking result is that the average d 34 S SO 4 value in the resin bags was more than 12& lower compared to that of the sprinkler water in the G1 roof catchment. There was no increasing trend in the isotope value in the resin bag SO 4 2À despite that the roof treatment has been on-going for almost 10 years; the average value for all resin bags was +7.1&. The highest d 34 S SO 4 values found in the G1 roof catchment were between +11& and +12&. However, these values were all obtained from resin bags installed at a single sampling location. Throughfall and resin bag d 34 S SO 4 values were more similar in the two reference catchments: about +7.5& in both cases. There was, however, an increase in resin bag d 34 S SO 4 values during the first winter period, from about +7& to +9&. The resin bag d 34 S SO 4 value was linearly and positively related (r 2 = 0.26, p < 0.001) to the amount of SO 4 2À extracted from the resin bags, if relatively high amounts (>50 mmol m À2 ) were excluded. High amounts of resin bag SO 4 2À seemed to be related to groundwater inputs, as indicated by the d 34 S SO 4 value. Our results suggest that rapid immobilization of SO 4 2À into a large organic S pool may alter the S isotope value and affect the d 34 S SO 4 values measured in the mineral soil and runoff.

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Section: Implications For Interpretations Of D 34 S So 4 Valuessupporting

confidence: 92%

The humus layer determines SO42− isotope values in the mineral soil

et al. 2005

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“…There is no evidence to suggest that atmospheric species of reactive nitrogen and reactive sulfur have been changing toward lower δ 15 N and δ 34 S values due to fossil fuel burning, or any other recent anthropogenic activity. Therefore, some studies suggested that the simultaneous increase in δ 13 C, δ 15 N and δ 34 S in organic soils may have an analogical explanation, diagenesis (Nadelhoffer and Fry, 1988;Novak et al, 1999;Novak et al, 2003; sites different from the current study). Before we discuss C selectivity of peat diagenesis, three more potential sources of C isotope variability in young peat should be mentioned.…”

Section: Discussioncontrasting

confidence: 61%

Isotope composition of bulk carbon in replicated Sphagnum peat cores from three Central European high-elevation wetlands

et al. 2009

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“…The sulphur content in spruce throughfall deposition in the Sweden-Italy transect was recorded at 6-42 kg S.ha -1 (Novák et al, 2003). These published data correspond with the throughfall deposition in the spruce stands in southern Poland registered by Małek et al, (2005) …”

Section: Discussionsupporting

confidence: 77%

The SO42- concentration and sulphur content in lysimetric water and throughfall in beech forest stands in the Štiavnické vrchy Mts. Ekológia

Janík¹,

Bublinec²,

Dubová³

2013

Ekologia

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Janík R., Bublinec E., Dubová M.: The SO 4 2-concentration and sulphur content in lysimetric water and throughfall in beech forest stands in the Štiavnické vrchy Mts. Ekológia (Bratislava), Vol. 32, No. 1, p. 30-38, 2013. This paper examines results of the sulphate sulphur content and its concentration in soil water from the beech forests situated in the Štiavnické vrchy Mts in Slovakia. The S-SO 4 2-content in bulk precipitation, throughfall and soil water for [1989][1990][1991][1992][1993][1994][1995][1996][1997][1998][1999][2000][2001][2002][2003][2004][2005][2006][2007] .ha -1 to the soil during the study period. Regression analysis revealed a statistically significant influence of sulphur content in the atmospheric deposition on the sulphur content in the soil water. A significant correlation between the precipitation amount and the content of sulphur in precipitation and in soil water was observed. The Student's t-test for dependent variables confirmed statistically significant differences between the sulphur content in soil water at 0.10 m and 0.25 m depths in these study areas. Finally, no significant differences were detected at the same plot in different study years.

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Similarity between C, N and S stable isotope profiles in European spruce forest soils: implications for the use of δ34S as a tracer

Cited by 75 publications

References 47 publications

The humus layer determines SO42− isotope values in the mineral soil

The humus layer determines SO42− isotope values in the mineral soil

Isotope composition of bulk carbon in replicated Sphagnum peat cores from three Central European high-elevation wetlands

The SO42- concentration and sulphur content in lysimetric water and throughfall in beech forest stands in the Štiavnické vrchy Mts. Ekológia

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