2004
DOI: 10.1016/j.crte.2004.09.008
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Weathering, atmospheric deposition and vegetation uptake: role for ecosystem sensitivity to acid deposition and critical load

Abstract: Critical loads of acidity represent the maximum acceptable atmospheric deposition for an ecosystem type. Two hundred and forty-one ecosystem types have been defined in France using pedologic, geologic and vegetation data. Weathering rate plays the most important part in soil buffering capacity, but for poor weatherable soils, non-marine atmospheric deposition represents up to 80% of base-cation inputs. Base-cation vegetation uptake decreases significantly the buffering capacity in case of highproductivity fore… Show more

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Cited by 14 publications
(4 citation statements)
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“…This usually decreases the pH and produces CO 2 , while the release of organic acids further enhances the dissolution and hydrolysis of minerals by (Ochs et al, 1993;Welch and Ullman, 1993;Hinsinger, 1998). This, in turn, releases cations, such as Na + , K + , Ca 2+ , Mg 2+ , and Fe 3+ that are essential for plant growth (Warfvinge et al, 1993;Quideau et al, 1996;Dambrine et al, 1998;Reynolds et al, 2000;Williams et al, 2003;Moncoulon et al, 2004;Karyotis et al, 2005). As a consequence, climate, chemical weathering rates, nutrient levels, and vegetation communities are strongly interdependent variables.…”
Section: Silicate and Carbonate Weatheringmentioning
confidence: 99%
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“…This usually decreases the pH and produces CO 2 , while the release of organic acids further enhances the dissolution and hydrolysis of minerals by (Ochs et al, 1993;Welch and Ullman, 1993;Hinsinger, 1998). This, in turn, releases cations, such as Na + , K + , Ca 2+ , Mg 2+ , and Fe 3+ that are essential for plant growth (Warfvinge et al, 1993;Quideau et al, 1996;Dambrine et al, 1998;Reynolds et al, 2000;Williams et al, 2003;Moncoulon et al, 2004;Karyotis et al, 2005). As a consequence, climate, chemical weathering rates, nutrient levels, and vegetation communities are strongly interdependent variables.…”
Section: Silicate and Carbonate Weatheringmentioning
confidence: 99%
“…Different plant species show large differences in WUE that are mainly related to their photosynthetic pathways. Average long term WUE for C3 plants is 1 mol CO 2 to 925 ± 506 mol H 2 O (Jones, 1992) and for C4 plants 1 mol CO 2 per 425 ± 96 mol H 2 O (Molles, 2002). The value of the WUE is important because it enables a first order calculation of the Net Primary Productivity (NPP) for a given catchment:…”
Section: Evaluation Of Transpiration Fluxesmentioning
confidence: 99%
“…Critical load (CL) was defined as ''the quantitative estimate of an exposure to one or more pollutants below which significant harmful effects on specified sensitive elements of the environment do not occur according to the present knowledge'' (Nilsson and Grennfelt, 1988). CL has first been developed to evaluate and mitigate the effect of acid rain on forest ecosystems in Europe ( De Vries, 1988;De Vries et al, 1994;Warfvinge and Sverdrup, 1992;Hornung et al, 1995) and particularly in France (Dambrine et al, 1993;Massabuau et al, 1995;Party et al, 1995Party et al, , 2001Moncoulon et al, 2004Moncoulon et al, , 2007. Since 1991, CL maps are used for international negotiations on air pollution abatement strategies (Hettelingh et al, 1991).…”
Section: Introductionmentioning
confidence: 99%
“…Such a resilience might be less obvious or efficient elsewhere in case of lower buffering capacity by silicate weathering or much higher strong acid inputs and sulfate storage in soils, like in the "Black Triangle" (Marx et al, 2017) or in other sites of Europe (Prechtel et al, 2001). In France, this was the case in more sensitive critical zones, where critical loads have been exceeded (Party et al, 1995;Probst et al, 1995d;Février et al, 1999;Moncoulon et al, 2004Moncoulon et al, , 2007. The capacity of resilience against nitrogen acid deposition, whose impact is nowadays largely spread over remote areas also (Rogora et al, 2006), still needs to be assessed.…”
Section: Disturbance and Resilience To Acidification: Weathering Inflmentioning
confidence: 99%