Plant-soil-water interactions: Implications from U-Th-Ra isotope analysis in soils, soil solutions and vegetation (Strengbach CZO, France)
作者: François ChabauxPeter StilleJonathan PrunierSophie GangloffDamien LemarchandGilles MorvanJustine NégrelEric PeltMarie-Claire PierretSophie RihsAnne-Désirée SchmittMichèle TrémolièresDaniel Viville
作者单位: 1Laboratoire d’Hydrologie et de Géochimie de Strasbourg (LHyGeS), Université de Strasbourg, CNRS, ENGEES, 1 rue Blessig, 67000 Strasbourg, France
刊名: Geochimica et Cosmochimica Acta, 2019, Vol.259 , pp.188-210
来源数据库: Elsevier Journal
DOI: 10.1016/j.gca.2019.05.045
关键词: 238 U- 234 U- 230 Th- 226 Ra radioactive disequilibria230 Th/ 232 Th activity ratiosSoilsSoil solutionsVegetationStrengbach catchment
英文摘要: Abstract(#br)This study presents U-Th-Ra isotope data for soils, soil grain size fractions, soil solutions, throughfall, rainwater and tree samples from two experimental plots under spruce and beech trees, in the Strengbach catchment (France) that highlight the importance of the 238 U- 234 U- 230 Th- 226 Ra nuclides and the ( 230 Th/ 232 Th) for the tracing of biogeochemical cycles in the plant-soil-water system of the critical zone (CZ).(#br)The results underscore the very contrasting impact of trees on the U-Th and Ra (Ba) budgets in forest ecosystems with Ra-Ba being strongly and U-Th very little cycled by vegetation, leading to high ( 226 Ra/ 230 Th) and ( 226 Ra/ 238 U) in trees. Thorium-Ra(Ba) fractionations in soil solutions and soils are therefore strongly influenced by tree...
全文获取路径: Elsevier  (合作)
影响因子:3.884 (2012)

  • France 法国法郎
  • radioactive 放射性的
  • vegetation 植被
  • ratios 遗传比率
  • water 
  • analysis 分析
  • activity 活度
  • isotope 同位素
  • catchment 集水区