Nom du corpus

Corpus Systématique Végétale

Titre du document

Nitrogen in litterfall and precipitation and its release during litter decomposition in the Chilean piedmont matorral

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Chile
  • Lithraea caustica
  • Litterfall
  • N-cycling
  • Piedmont-matorral
  • Quillaja saponaria
Nom du fichier dans la ressource
Syst_veg6_v2_017561
Auteur(s)
  • R. E. Cisternas 1
  • L. R. Yates 1
Affiliation(s)
  • 1) Laboratorio de Ecologia, Instituto de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Casilla, 114-D, Santiago, Chile
Résumé

Parts of the nitrogen cycle involving two dominants (Lithraea caustica andQuillaja saponaria) in the Chilean piedmont matorral have been studied over a 15-month period. Analyses showed that 8.2 kg N ha−1 yr−1 entered the system in rainfall and dry deposition, though impaction of N-containing compounds on vegetation (not measured) may elevate this value.L. caustica, by virtue of its greater percent cover, contributed more leaf litter than didQ. saponaria to the system (1089,vs 737 kg dry matter ha−1 yr−1, respectively), although on an individual basisQ. saponaria produced more litter (640,vs 350 g dry leaf litter m−2 yr−1 rL. caustica). This plus the greater nitrogen release ofL. caustica leaf litter during decomposition (2.61,vs 0.60 g N kg dry litter−1 yr−1 forQ. saponaria) andQ. saponaria's higher N-content of dropped leaves (0.54,vs 0.37% N forL. caustica) may indicate a more external cycling of nitrogen inQ. saponaria relative to that inL. caustica. These two species may therefore represent two different strategies of individual nitrogen cycling, external and internal.

Catégories Science-Metrix
  • 1 - applied sciences
  • 2 - agriculture, fisheries & forestry
  • 3 - agronomy & agriculture
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Plant Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Soil Science
Catégories WoS
  • 1 - science ; 2 - soil science
  • 1 - science ; 2 - plant sciences
  • 1 - science ; 2 - agronomy
Identifiant ISTEX
D9B7B2C75C76B542E58384740B21387DCC067ADF
Revue

Plant and Soil

Année de publication
1982
Présence de XML structuré
Non
Score qualité du texte
6.484
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-03H21MJH-J
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