Nom du corpus

Corpus Systématique Végétale

Titre du document

A case study of forest decline in Western Canada and the adjacent United States

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Syst_veg6_v2_027544
Auteur(s)
  • Allan N. D. Auclair 1
  • Hans C. Martin 1
  • Sherry L. Walker 1
Affiliation(s)
  • 1) Quebec Region and Atmospheric Environment Service, Environment, Forestry Canada, Canada
Résumé

A comparison of declining forests in Alaska, British columbia, and the Pacific Northwest United States to forest declines in eastern North America indicated that strong similarities existed and justified the use of the western forest region as an ‘acid rain’ control. The current level of wet acidic deposition over the western region was one-quarter that of eastern Canada and the United States. The onset of crown dieback on Chamaecyparis nootkatensis (1900) and Pinus monticola (1936) did not relate to the incidence of regional air pollution but to extreme climatic variation. The injury mechanism differentiating persistent decline on Pinus monticola from sporadic but transient dieback, which was observed on a larger number of conifer and deciduous tree species, was believed to be cavitation. This dysfunction of the xylem was induced by anomalous winter thaw-freeze conditions in 1936 followed by high summer temperatures and evapotranspiration stress in that and subsequent years. Similar extreme climatic conditions were present at the onset of forest declines in eastern North America and central Europe which suggests that the climate-cavitation-forest decline mechanism may be universal.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - earth & environmental sciences
  • 3 - environmental sciences
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 - Physical Sciences ; 2 - Environmental Science ; 3 - Pollution
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Water Science and Technology
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecological Modelling
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Environmental Chemistry
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Environmental Engineering
Catégories WoS
  • 1 - science ; 2 - water resources
  • 1 - science ; 2 - meteorology & atmospheric sciences
  • 1 - science ; 2 - environmental sciences
Identifiant ISTEX
4F3D564E737018350262905515AD900F555A8A91
Revue

Water, Air, and Soil Pollution

Année de publication
1990
Présence de XML structuré
Non
Score qualité du texte
9.148
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-0F4F4HX0-N
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