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Auteur Peter Waldner |
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Exceedance of critical loads and of critical limits impacts tree nutrition across Europe / Peter Waldner in Annals of Forest Science, vol 72 n° 7 (October 2015)
[article]
Titre : Exceedance of critical loads and of critical limits impacts tree nutrition across Europe Type de document : Article/Communication Auteurs : Peter Waldner, Auteur ; Anne Thimonier, Auteur ; Elisabeth Graf Pannatier, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 929 - 939 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] acidification des sols
[Termes IGN] eutrophisation
[Termes IGN] nutrition végétale
[Termes IGN] pollution des sols
[Termes IGN] relations plante - solRésumé : (auteur) Key message : Exceedance of critical limits in soil solution samples was more frequent in intensively monitored forest plots across Europe with critical loads for acidity and eutrophication exceeded compared to other plots from the same network. Elevated inorganic nitrogen concentrations in soil solution tended to be related to less favourable nutritional status.
Context : Forests have been exposed to elevated atmospheric deposition of acidifying and eutrophying sulphur and nitrogen compounds for decades. Critical loads have been identified, below which damage due to acidification and eutrophication are not expected to occur.
Aims : We explored the relationship between the exceedance of critical loads and inorganic nitrogen concentration, the base cation to aluminium ratio in soil solutions, as well as the nutritional status of trees.
Methods : We used recent data describing deposition, elemental concentrations in soil solution and foliage, as well as the level of damage to foliage recorded at forest plots of the ICP Forests intensive monitoring network across Europe.
Results : Critical loads for inorganic nitrogen deposition were exceeded on about a third to half of the forest plots. Elevated inorganic nitrogen concentrations in soil solution occurred more frequently among these plots. Indications of nutrient imbalances, such as low magnesium concentration in foliage or discolouration of needles and leaves, were seldom but appeared more frequently on plots where the critical limits for soil solution were exceeded.
Conclusion : The findings support the hypothesis that elevated nitrogen and sulphur deposition can lead to imbalances in tree nutrition.Numéro de notice : A2015-720 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-015-0489-2 Date de publication en ligne : 01/10/2015 En ligne : https://doi.org/10.1007/s13595-015-0489-2 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78370
in Annals of Forest Science > vol 72 n° 7 (October 2015) . - pp 929 - 939[article]