Nom du corpus

Corpus Systématique Végétale

Titre du document

Response of early and late semiarid seral species to nitrogen and phosphorus gradients

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • nitrogen
  • phosphorus
  • root: shoot ratios
  • secondary succession
  • semiarid
  • shrubland
  • tissue nitrogen
  • tissue phosphorus
Nom du fichier dans la ressource
Syst_veg6_v2_030396
Auteur(s)
  • Edward F. Redente 1
  • Joan E. Friedlander 1
  • Terry McLendon 1
Affiliation(s)
  • 1) Department of Range Science, Colorado State University, 80523, Fort Collins, CO, USA
Résumé

Above- and below-ground biomass production, nitrogen (N) and phosphorus (P) tissue concentrations, and root: shoot ratios were examined for five species that are characteristic of a semiarid successional sequence under controlled greenhouse conditions. In two simultaneous experiments, seedlings of one forb, two grass, and two shrub species important in a sagebrush successional sere, were subjected to seven levels of N and P. Results of the experiments suggest distinct differences in nutrient response patterns between early and late seral species. Early seral species produced more biomass but had lower tissue nutrient concentrations than late seral species. As N and P availabilities decreased, late seral species displayed characteristics indicative of increasing competitive advantage over those of early seral species. Root: shoot ratios of the five species primarily reflected patterns related to lifeform, but with some early and late seral characteristics. Results from this study 1) confirm that nutrient use pattern, nutrient availability, and seral position relationships characteristic of mesic ecosystems hold equally true for semiarid systems, and 2) suggest that nutrients are important organizing factors in semiarid ecosystems.

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
712D7BC38114893E7A3E670293FAB21A27EDBFC2
Revue

Plant and Soil

Année de publication
1992
Présence de XML structuré
Non
Score qualité du texte
9.124
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-0BQ11LFS-V
Powered by Lodex 9.3.8