Dépouillements

Leaching of nitrate and ammonium in heathland and forest ecosystems in Northwest Germany under the influence of enhanced nitrogen deposition / Martina Herrmann in Plant and soil, vol. 273 (Année 2005)

Public [article]  inPlant and soil > vol. 273 (Année 2005) . - pp. 129–137 Titre : Leaching of nitrate and ammonium in heathland and forest ecosystems in Northwest Germany under the influence of enhanced nitrogen deposition Type de document : texte imprimé Auteurs : Martina Herrmann, Auteur ; Jürgen Pust, Auteur ; Richard Pott, Auteur Année de publication : 2005 Article en page(s) : pp. 129–137 Langues : Anglais (eng) Catégories : [ZG] Allemagne Use for events before 1949 and after October 1990. [habitats/milieux] 31 - Landes et fruticées [habitats/milieux] 44 - Forêts riveraines, forêts et fourrés très humides [Espèces (in biblio)] Betula pubescens [Espèces (in biblio)] Calluna vulgaris [Espèces (in biblio)] Erica tetralix [Espèces (in biblio)] Molinia caerulea [Espèces (in biblio)] Quercus [Thèmes] Relation sol - végétation Mots-clés : eau souterraine  dépôt d'azote  eau d'infiltration Résumé : "To study the impact of high atmospheric nitrogen deposition on the leaching of NO −3 and NH +4 beneath forest and heathland vegetation, investigations were carried out in adjacent forest and heathland ecosystems in Northwest Germany. The study area is subjected to high deposition of nitrogen ranging from 15.9 kg ha−1 yr−1 in bulk precipitation to 65.3 kg ha−1 yr−1 beneath a stand of Pinus sylvestris L. with NH4–N accounting for 70–80% of the nitrogen deposited. Considerable leaching of nitrogen compounds from the upper horizons of the soil, mostly as nitrate, occurred at most of the forest sites and below a mixed stand of Calluna vulgaris (L.) Hull. and Erica tetralix, but was low in a Betula pubescens Ehrh. swamp forest as well as beneath Erica tetralix L. wet heath and heath dominated by Molinia caerulea (L.) Moench. Ground water concentrations of both NO3–N and NH4–N did not exceed 1 mg L−1 at most of the sites investigated." (source : auteurs) Type de publication : périodique Référence biblio : Herrmann M., Pust J., Pott R., 2005 - Leaching of nitrate and ammonium in heathland and forest ecosystems in Northwest Germany under the influence of enhanced nitrogen deposition. Plant and soil, 273 : 129–137. ID PMB : 70412 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=70412 [article]

Exemplaires(0)

Disponibilité
aucun exemplaire