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Phosphorus nutrition of beech (Fagus sylvatica L.) is decreasing in Europe / Ulrike Talkne in Annals of Forest Science, vol 72 n° 7 (October 2015)  

Public [article]  inAnnals of Forest Science > vol 72 n° 7 (October 2015) . - pp 919 - 928 Titre : Phosphorus nutrition of beech (Fagus sylvatica L.) is decreasing in Europe Type de document : Article/Communication Auteurs : Ulrike Talkne, Auteur ; Karl Josef Meiwes, Auteur ; Nenad Potočić, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 919 - 928 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] azote [Termes IGN] croissance des arbres [Termes IGN] défoliation [Termes IGN] Fagus (genre) [Termes IGN] nutriment végétal [Termes IGN] phosphore [Termes IGN] phytobiologie [Termes IGN] placette d'échantillonnage [Termes IGN] sol acide [Vedettes matières IGN] Végétation et changement climatique Résumé : (auteur) Key message : Foliar phosphorus concentrations have decreased in Europe during the last 20 years. High atmospheric nitrogen deposition and climate change might be responsible for this trend. Continued decrease in foliar P concentrations might lead to reduced growth and vitality of beech forests in Europe. Context : Increased forest soil acidification, atmospheric nitrogen deposition, and climate change have been shown to affect phosphorus nutrition of forest trees. Low foliar phosphorus levels and high nitrogen/phosphorus ratios have been observed in different European countries and have been related to reduced growth in forests. Aims : We test the hypothesis that phosphorus concentrations of European beech (F. sylvatica L.) foliage are decreasing at the European scale. Methods : Foliar phosphorus concentrations in beech were monitored on the basis of the “International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests.” Here, data from 12 European countries, comprising 79 plots and a 20-year sampling period (1991–2010), were evaluated. Results : Foliar phosphorus concentrations ranged from 0.81 to 1.66 mg g−1 dw (plot median of the 20-year sampling period). On 22 % of the plots, phosphorus concentrations were in the deficiency range of beech (Mellert and Göttlein 2012). On 62 % of the plots, the nitrogen/phosphorus ratio was above 18.9, which is considered to be disharmonious for beech. In addition, foliar phosphorus concentrations were significantly decreasing by, on average, 13 % from 1.31 to 1.14 mg g−1 in Europe (p  Conclusion : Our results show that phosphorus nutrition of beech is impaired in Europe. Possible drivers of this development might be high atmospheric nitrogen deposition and climate change. Continued decrease in foliar phosphorus concentrations, eventually attaining phosphorus deficiency levels, might lead to reduced growth and vitality of beech forests in Europe. Numéro de notice : A2015-719 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-015-0459-8 Date de publication en ligne : 01/10/2015 En ligne : https://doi.org/10.1007/s13595-015-0459-8 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78368 [article]