Strontium isotope composition as a tracer of calcium sources in two forest ecosystems in Belgium

Drouet, Thomas; Herbauts, Jacques; Gruber, Wolf; Demaiffe, Daniel

doi:10.1016/j.geoderma.2004.09.010

Cited by 88 publications

(52 citation statements)

References 48 publications

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“…Over the past decade, strontium (Sr) isotope analysis has become an increasingly powerful tool in present-day and past animal ecology, for determining habitat use and mobility/migration (Blum et al, 2001;Britton et al, 2011;Feranec et al, 2007;Hoppe et al, 1999;Hoppe and Koch, 2007;Radloff et al, 2010;Tütken et al, 2011), in tracing food provenance (Almeida and Vasconcelos, 2001;Barbaste et al, 2002;Fortunato et al, 2004;Montgomery et al, 2006;Swoboda et al, 2008;Techer et al, 2011;Voerkelius et al, 2010), in hydrological and forest ecosystem investigations (Böhlke and Horan, 2000;Dijkstra et al, 2003;Drouet et al, 2005bDrouet et al, , 2007Poszwa et al, 2004;Shand et al, 2009), as well as in forensic sciences (Beard and Johnson, 2000;Juarez, 2008).…”

Section: Introductionmentioning

confidence: 99%

Bioavailable 87Sr/86Sr in different environmental samples — Effects of anthropogenic contamination and implications for isoscapes in past migration studies

Maurer

Galer

Knipper

et al. 2012

Science of The Total Environment

218

190

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Sr/ 86 Sr reference maps (isoscapes) are a key tool for investigating past human and animal migrations. However, there is little understanding of which biosphere samples are best proxies for local bioavailable Sr when dealing with movements of past populations. In this study, biological and geological samples (ground vegetation, tree leaves, rock leachates, water, soil extracts, as well as modern and archeological animal teeth and snail shells) were collected in the vicinity of two early medieval cemeteries ("Thuringians", 5-6th century AD) in central Germany, in order to characterize 87 Sr/ 86 Sr of the local biosphere. Animal tooth enamel is not appropriate in this specific context to provide a reliable 87 Sr/ 86 Sr baseline for investigating past human migration. Archeological faunal teeth data (pig, sheep/goat, and cattle) indicates a different feeding area compared to that of the human population and modern deer teeth 87 Sr/ 86 Sr such as freshwater bivalve shells and tree cores were examined in order to track potential historic anthropogenic contamination of the water and the vegetation. The data obtained from the archeological bivalve shells show that the modern rivers yield 87 Sr/ 86 Sr ratios which are similar to those of the past. However, the tree cores registered decreasing 87 Sr/ 86 Sr values over time towards present day likely mirroring anthropogenic activities such as forest liming, coal mining and/or soil acidification. The comparison of 87 Sr/ 86 Sr of the Thuringian skeletons excavated in the same area also shows that the vegetation samples are very likely anthropogenically influenced to some extent, affecting especially 87 Sr/ 86 Sr of the shallow rooted plants.

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Section: Introductionmentioning

confidence: 99%

Bioavailable 87Sr/86Sr in different environmental samples — Effects of anthropogenic contamination and implications for isoscapes in past migration studies

Maurer

Galer

Knipper

et al. 2012

Science of The Total Environment

218

190

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“…Calcite is also a likely candidate as indicated by the fact that the 0.1 M HCl leach produced the lowest 87 Sr/ 86 Sr and highest molar Ca/Sr of all the soil leachates (Figure 2) (Drouet et al, 2005). The high molar Ca/Sr of 1625 is typical of calcite with small amounts of Sr substitution, but it is also typical of apatite minerals.…”

Section: Soil Mineral Weatheringmentioning

confidence: 95%

“…It is now recognized that the atmosphere, either from wet or dry deposition, is an important source of Ca in many settings. In fact, some forests seem to satisfy their Ca requirements almost entirely from atmospheric inputs (Kennedy et al, 1998;Drouet et al, 2005;Perakis et al, 2006;Poszwa et al, 2009;Bélanger and Holmden, 2010), whereas, in others, Ca nutrition is mostly supported by soil mineral weathering (Bailey et al, 1996;Vitousek et al, 1999;Blum et al, 2002;Bern et al, 2005). Some other forests depend on a mixture of these two primary Ca sources (Miller et al, 1993;Blum et al, 2002;Poszwa et al, 2004;Bélanger and Holmden, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Constraining soil mineral weathering 87Sr/86Sr for calcium apportionment studies of a deciduous forest growing on soils developed from granitoid igneous rocks

et al. 2012

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Abstracts:We used 87 Sr/ 86 Sr as a proxy for Ca to apportion the contribution of atmospheric deposition and soil mineral weathering sources to the Ca pools in trees in a small forested watershed of southern Quebec. The effects of topography and forest stand composition were assessed by dividing the watershed into three study zones representing two elevations and differences in tree species. Apportionment calculations show that all tree species studied contained Ca that is dominantly sourced from soil mineral weathering (averaging 85%), due to the presence in the soils of easily weathered Ca-bearing minerals such as calcite and apatite as well as the relatively deep rooting habits (reaching the mineral soil) of the tree species. Calcium pools in trees are shifted towards the atmospheric component on hilltops due to the filtering of dry aerosols of the tree canopies which are more exposed to atmospheric circulation than trees at the bottom of the slopes, although some variability in soil bulk chemistry and mineralogy in the watershed obscures the full extent of this phenomenon. The buildup and recycling of Ca in the soilvegetation system, with the forest floor acting as the major accessible Ca pool for the tree roots, must be considered when interpreting apportionment calculations. This work supports other Ca cycling models in forests suggesting that topography can influence the balance of Ca captured from atmospheric sources by trees, even in cases where mineral weathering is the dominant source of Ca nutrition in trees.

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“…shows Ca and K concentration in leaves of 7-8 and about 5 mg g -1 respectively (Drouet et al 2005;Berger et al 2009). Mg concentration is much lower (≈ 0.5 mg g -1 ), both in leaves and in roots (Berger et al 2009;Tyler 2004).…”

Section: Introductionmentioning

confidence: 99%

Influence of serpentine abundance on the vertical distribution of available elements in soils

2012

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Strontium isotope composition as a tracer of calcium sources in two forest ecosystems in Belgium

Cited by 88 publications

References 48 publications

Bioavailable 87Sr/86Sr in different environmental samples — Effects of anthropogenic contamination and implications for isoscapes in past migration studies

Bioavailable 87Sr/86Sr in different environmental samples — Effects of anthropogenic contamination and implications for isoscapes in past migration studies

Constraining soil mineral weathering 87Sr/86Sr for calcium apportionment studies of a deciduous forest growing on soils developed from granitoid igneous rocks

Influence of serpentine abundance on the vertical distribution of available elements in soils

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