Nom du corpus

Corpus Systématique Végétale

Titre du document

Soil nutrient supply in natural and managed forests

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • managed forests
  • mineral cycling
  • natural forests
  • productivity
  • soil nutrients
Nom du fichier dans la ressource
Syst_veg6_v2_025651
Auteur(s)
  • Dale W. Cole
Affiliation(s)
  • College of Forest Resources, AR-10 University of Washington, 98195, Seattle, WA, USA
Résumé

Soils differ in their ability to supply the nutrients necessary to sustain forest productivity. Nutrients are added through natural processes such as weathering of primary and secondary soil minerals, mineralization of soil organic matter including the forest floor layer, fixation of nitrogen primarily through symbiotic microorganisms, and natural or induced atmospheric deposition. Nutrients become unavailable for plant uptake through immobilization by soil microorganisms and through chemical and mineralogical reactions including precipitation and adsorption reactions and ionic fixation within lattice structures of clay minerals. Losses of nutrients can take place through soil leaching and erosional processes. Nutrients can also be added or lost through human activities such as fertilization and harvesting. Nutrient supply continually shifts with the rate and direction dependent on the prevailing processes in the soil system, but subject to overriding human influence. Over relatively short periods of time, the soil nutrient supply can be subject to seasonal fluctuations. Factors affecting long-term nutrient availability are functions of soil mineralogy, the rate of mineralization of the organic matter of the soil and forest floor layer, and plant-soil relationships of the species occupying the site (deciduous vs. coniferous species, deep vs. shallow rooting, symbiotic nitrogen fixation). The long-term stability of the soil nutrient supply is of increasing concern in the face of a diminished forest land base, increased demand for forest products, and reluctance to apply nutrients to many forest areas because of environmental or economic constraints. There are questions to consider in evaluating the nutrient sustainability of forest areas if we expect to maintain the long-term nutrient stability of natural and managed forest 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
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
D27A7D192979D464FDC1F1CE386CCAA52EB2C23D
Revue

Plant and Soil

Année de publication
1995
Présence de XML structuré
Non
Score qualité du texte
10
Version PDF
1.3
Type de publication
Journal
ark:/67375/1BB-02VP14SJ-C
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