Uptake of Stable Strontium by Plants and Effects on Plant Growth

Isermann, K.

doi:10.1007/978-1-4684-3698-3_5

Cited by 23 publications

(12 citation statements)

References 69 publications

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“…Sr 2+ is strongly adsorbed to organic matter, soils and phyllosilicates; a number of studies have shown a slight preference for Sr 2+ over Ca 2+ which could result in a small fractionation of Sr from Ca (e.g., Bruggenwert and Kamphorst 1982;Sposito 1989). If the adsorption isotherms for Sr and Ca are not the same (Isermann 1981), preferential loading of Sr over Ca on exchange sites could elevate the Ca/Sr ratio of streamwater above the Ca/Sr ratio of the applied wollastonite. Peters et al (2004) suggested that the pH increase associated with the wollastonite application in W1 might have disturbed the streamed cation exchange complex equilibrium, resulting in a 20-day-period of Ca accumulation and re-equilibration.…”

Section: Determination Of Ca/sr Uptakementioning

confidence: 97%

The relative uptake of Ca and Sr into tree foliage using a whole-watershed calcium addition

et al. 2006

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The use of strontium isotopes and ratios of alkaline earth elements (i.e., 87 Sr/ 86 Sr and Ca/Sr) to trace Ca sources to plants has become common in ecosystem studies. Here we examine the relative uptake of Ca and Sr in trees and subsequent accumulation in foliage. Using a whole-watershed Ca addition experiment at the Hubbard Brook Experimental Forest in N.H., we measured the uptake of Ca relative to Sr in foliage and roots of sugar maple (Acer saccharum), yellow birch (Betula alleghaniensis), American beech (Fagus grandifolia), and red spruce (Picea rubens). Vegetation was analyzed for Ca and Sr concentrations and the 87 Sr/ 86 Sr ratio. A comparison of the Ca/Sr ratio in the vegetation and the Ca/Sr ratio of the applied mineral allows for the calculation of a discrimination factor, which defines whether Ca and Sr are incorporated and allocated in the same ratio as that which is available. A discrimination factor greater than unity indicates preferential uptake of Ca over Sr; a factor less than unity reflects preferential uptake of Sr over Ca. We demonstrate that sugar maple (SM) and yellow birch (YB) have similar and small discrimination factors (1.14 ± 0.12,1r and 1.16 ± 0.09,1r) in foliage formation and discrimination factors of less than 1 in root formation (0.55-0.70). Uptake into beech suggests a larger discrimination factor (1.9 ± 1.2) in foliage but a similar root discrimination factor to SM and YB (0.66 ± 0.06,1r). Incorporation into spruce foliage occurs at a much slower rate than in these other tree species and precludes evaluation of Ca and Sr discrimination in spruce foliage at this time. Understanding the degree to which Ca is fractionated from Sr in different species allows for refinement in the use of 87 Sr/ 86 Sr and Ca/Sr ratios to trace Ca sources to foliage. Methods from this study can be applied to natural environments in which various soil cation pools have different 87 Sr/ 86 Sr and Ca/Sr ratios. The results reported herein have implications for re-evaluating Ca sources and fluxes in forest ecosystems.

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Section: Determination Of Ca/sr Uptakementioning

confidence: 97%

The relative uptake of Ca and Sr into tree foliage using a whole-watershed calcium addition

et al. 2006

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“…Mo availability is related to soil pH, but the presence of sulphate can significantly reduce Mo absorption and toxicity [59], a mechanism that may be working in Lake Uru-Uru, given the high levels of S in the sediments. Sr's toxicity in plants is related to its chemical closeness to Ca, being able to supplant this macronutrient [60]. This phenomenon could be related to the lower Ca concentrations found at the more polluted site of Central Lake compared to Puente Español.…”

Section: Discussionmentioning

confidence: 99%

Suitability of Totora (Schoenoplectus californicus (C.A. Mey.) Soják) for Its Use in Constructed Wetlands in Areas Polluted with Heavy Metals

Blanco

2018

Sustainability

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Schoenoplectus californicus subsp. tatora (totora) is an endemic plant from wetlands in South America's Altiplano region. In the endorheic Titicaca-Desaguadero-Poopó-Salar de Coipasa system (TDPS), totora can be found along rivers, lakes, and shallow ponds. Lake Uru-Uru is a minor lake placed upstream of Lake Poopó, and it gets water inflows from the Desaguadero River, the city of Oruro and several mining and metallurgic complexes. Polluted waters from these origins, together with natural high salinity and high presence of As and Pb, make Lake Uru-Uru an ideal location to search for plant species suitable to be used in constructed and restored wetlands under pollution stress, particularly in systems with high pH and salty waters. To test if totora could meet such requirements, healthy plants were collected at two sites in Lake Uru-Uru with different exposure to polluted inflows. Chemical composition of different organs (leaves, rhizomes and roots) were compared. Results indicated totora's capacity to withstand high concentrations of a cocktail of multiple pollutants and heavy metals. Particularly, this research showed totora as a multi-hyperaccumulator (concentrations in shoots higher than 1000 mg kg −1 ) for As, Fe and Ni. These results, combined with totora's intrinsic high rates of biomass production, slow decomposition rates and its value as raw material for local craftwork and industrial uses, support the recommendation to use totora in constructed or restored wetlands, particularly in sites polluted with heavy metals, and in waters with high salinity.

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“…Strontium passes from the geological bedrock to soil through weathering. Subsequently, the strontium is taken up from the soil by vegetation (for controlling factors, see Isermann ; Dijkstra et al . ) and released into our food chain (Miller et al .…”

Section: Strontium Isotopes In Archaeologymentioning

confidence: 99%

Breaking Traditions: An Isotopic Study on the Changing Funerary Practices in the Dutch Iron Age (800–12 bc)

et al. 2017

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Urnfields in the Dutch river area were replaced by cemeteries with a mixture of cremation and inhumation graves around the sixth century BC. This study provides the first biogeochemical evidence that the Iron Age communities were heterogeneous in terms of geological origins. The high percentage of non-locally born individuals (~48%) supports the hypothesis that the change in burial practice was the result of the influx of foreign people, who were being allowed to keep their own burial customs, whereas some of the local inhabitants adapted the burial rites of foreign cultures, leading to a heterogeneous burial rite for some centuries.

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Uptake of Stable Strontium by Plants and Effects on Plant Growth

Cited by 23 publications

References 69 publications

The relative uptake of Ca and Sr into tree foliage using a whole-watershed calcium addition

The relative uptake of Ca and Sr into tree foliage using a whole-watershed calcium addition

Suitability of Totora (Schoenoplectus californicus (C.A. Mey.) Soják) for Its Use in Constructed Wetlands in Areas Polluted with Heavy Metals

Breaking Traditions: An Isotopic Study on the Changing Funerary Practices in the Dutch Iron Age (800–12 bc)

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