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Ca isotope cycling in a forested ecosystem

Weblong-term development of a forest ecosystem [18–21]. In recent studies, Ca isotope fractionation has been used in marine carbonate stud-ies [22–26] and stable Ca isotopes have been applied directly to determine the biogeo-chemical cycle of elements in different ecosystems on Earth [3,4,21,27–38]. The results highlight the complex effects ... WebSr isotope ratios provide a valuable tracer for provenance studies of alkaline earth elements in forested ecosystems, but its usefulness is limited when deciphering biogeochemical …

Influences of calcium availability and tree species on Ca isotope ...

Web1 1 Ca isotope cycling in a forested ecosystem 2 Chris Holmden1 and Nicolas Bélanger2 3 4 Saskatchewan Isotope Laboratory1, Department of Geological Sciences, University of 5 Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan, S7N 5E2. [email protected]. 6 7 UER Sciences et technologies2, Téluq, Université du … WebJan 20, 2024 · For instance, stable isotopes of Ca and Si have been successfully used to trace the cycling of these elements in forested ecosystems (Holmden and Belanger, 2010, Opfergelt and Delmelle, 2012; Schmitt et al., 2012; Riotte et al., 2024). sb5 legislation https://leishenglaser.com

Ca cycling and isotopic fluxes in forested ecosystems in Hawaii

WebCa cycling and isotopic fluxes in forested ecosystems in Hawaii B. A. Wiegand,1 O. A. Chadwick,2 P. M. Vitousek,3 and J. L. Wooden1,4 Received 17 February 2005; revised 28 April 2005; accepted 13 May 2005; published 14 June 2005. [1] Biogeochemical processes fractionate Ca isotopes in plants and soils along a 4 million year developmental WebJan 20, 2015 · Nitrogen (N) losses from terrestrial ecosystems can occur as inert forms or heat-trapping greenhouse gases, and via nitrate (NO 3 −) leaching to drainage waters, which can contribute to eutrophication and anoxia in downstream ecosystems.Here, we use natural isotopes to demonstrate that microbial gaseous N production via denitrification is … WebCa isotope cycling in a forested ecosystem @article{Holmden2010CaIC, title={Ca isotope cycling in a forested ecosystem}, author={Chris Holmden and Nicolas B{\'e}langer}, journal={Geochimica et Cosmochimica Acta}, year={2010}, volume={74}, pages={995-1015} } C. Holmden, N. Bélanger; Published 1 February 2010; … sb50 section 1.9

Calcium Biogeochemical Cycle in a Typical Karst …

Category:Calcium Biogeochemical Cycle in a Typical Karst Forest: …

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Ca isotope cycling in a forested ecosystem

Forests Special Issue : Disturbance Effects on Soil Carbon and ...

WebAnother model run shows that by changing the size of the isotope fractionation factor and adjusting for differences in forest productivity, that the range in Ca isotope … WebMar 9, 2024 · Holmden, C. & Belanger, N. Ca isotope cycling in a forested ecosystem. Geochim. Cosmochim. Acta 74, 995–1015 (2010). ADS CAS Google Scholar ...

Ca isotope cycling in a forested ecosystem

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Web[1] Forests mediate the biogeochemical cycling of mercury (Hg) between the atmosphere and terrestrial ecosystems; however, there remain many gaps in our understanding of these processes. Our objectives in this … Web[1] Forests mediate the biogeochemical cycling of mercury (Hg) between the atmosphere and terrestrial ecosystems; however, there remain many gaps in our understanding of these processes. Our objectives in this …

WebThe assimilation value of the δ13C ratio of arthropods with food sources in the ratoon sugarcane ecosystem (boxplot with different colors showing the type of morphospecies on the x-axis) PRABOWO et al. – Trophic level of arthropod in sugarcane ratoon agroecosystem 2877 Besides stable carbon isotope, the role of a predator can stable … WebReports of large Ca isotope fractionations between trees and soils prompted this study of a Boreal forest ecosystem near La Ronge, Saskatchewan, to improve understanding of this phenomenon. The results on five tree species (black spruce, trembling aspen, white spruce, jack pine, balsam poplar) confirm that nutrient Ca uptake by plants favors the light …

WebIn favourable conditions, the 87Sr/86Sr isotope ratios of the Sr delivered by rain and soil mineral weathering differ. Assuming that Ca and Sr behave similarly in forest ecosystems, several authors have used the 87Sr/86Sr variation in forest compartments to calculate the contribution of rain and mineral weathering to Ca fluxes and pools. However, there are a … Webto understand Ca cycling pathways in order to identify sensitive ecosystems, minimize further losses of Ca, and evaluate potential mitigation strategies. Most of the Ca in a …

Weblong-term development of a forest ecosystem [18–21]. In recent studies, Ca isotope fractionation has been used in marine carbonate stud-ies [22–26] and stable Ca …

WebCalcium stable isotope ratios are an emerging tracer of the biogeochemical cycle of Ca that are just beginning to see significant application to forest ecosystems. The primary source of isotopic fractionation in these systems is discrimination against light Ca during uptake by plant roots. Cycling of vegetation-fractionated Ca establishes isotopically distinct Ca … scandiborn wooden blocksWebMay 22, 2024 · The Ca isotope compositions and Ca contents of groundwater, rainwater, and bedr ock suggest that the Ca of groundwater primarily originates from rainwater and … sb50 connector for schauerWebCa isotope cycling in a forested ecosystem @article{Holmden2010CaIC, title={Ca isotope cycling in a forested ecosystem}, author={Chris Holmden and Nicolas … sb5036 washington stateWebFeb 1, 2010 · As a quantitative tool, the Ca cycling model produces a reasonable set of relative Ca fluxes for the La Ronge site, consistent with Environment Canada’s … scandiborn reviewsWebFeb 1, 2010 · The δ44/40Ca values are found to differ by ≈3.0 ‰ in the karst forest ecosystem. The Ca isotope compositions and Ca contents of groundwater, rain-water, … scandiborn ltdWebTransient model runs show that the forest Ca cycle is sensitive to changes in plant Ca uptake rate, such as would occur during ontogeny or disturbance. Accordingly, secular records of δ44Ca in tree ring cellulose have the potential to monitor changes in the forest Ca cycle through time, thus providing a new tool for evaluating natural and ... sb5006 service toolWebMay 22, 2024 · The δ44/40Ca values are found to differ by ≈3.0 ‰ in the karst forest ecosystem. The Ca isotope compositions and Ca contents of groundwater, rain-water, and bedrock suggest that the Ca of ... scandiborn logo