Ca isotope cycling in a forested ecosystem
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 … 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 …
Ca isotope cycling in a forested ecosystem
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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). 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 …
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 … WebOct 31, 2024 · Nutrient depletion in the ecosystem mainly occurred via the base cations leach from the ecosystems. Isotope technology can provide new information on the nutrients’ behavior (cycle) in ecosystems. To better understand the strontium (Sr) biogeochemical cycle in the forest, radiogenic and stable Sr isotopes were determined …
WebApr 5, 2024 · Abstract. Data from long-term experimental catchments are the foundation of hydrological sciences and are crucial for benchmarking process understanding, observing trends and natural cycles, and being prerequisites for testing predictive models. Integrated data sets which capture all compartments of our landscapes are particularly important in … WebSep 1, 2024 · We developed a process-oriented model called NutsFor that simulates nutrient cycling of major cations (Ca, Mg, K, Al, NH 4, Na) and anions (NO 3, SO 4, Cl) and the stable isotope tracers for each of the respective elements at the scale of an ecosystem (isotopic fractionation are not simulated). We tested the ability of NutsFor to reproduce …
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
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 … seven dials mysteryWebCa isotope cycling in a forested ecosystem. Author links open overlay panel Chris Holmden a, Nicolas Bélanger b. Show more. Add to Mendeley ... Abstract. Reports of … seven dials conservation areaWebMar 9, 2024 · Holmden, C. & Belanger, N. Ca isotope cycling in a forested ecosystem. Geochim. Cosmochim. Acta 74, 995–1015 (2010). ADS CAS Google Scholar ... seven dials housing co-operative limitedWebThe 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 … sevendials property for saleWebJun 18, 2024 · Humid tropical forests support the main organic carbon pool and harbor diverse species in terrestrial ecosystems [].These tropical forests are commonly rich in N but are relatively poor in P availability because of the substantial biological N fixation and P leaching loss during pedogenesis [].However, global N and P cycling has changed … seven dials osteopathy clinicseven diamond ringWebFeb 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 … seven dials winter festival