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Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Recent dynamics of subarctic dunes as determined by tree-ring analysis of white spruce, Hudson Bay, Québec
  • The objectives of this research are twofold : 1) to study the radial-growth patterns on a number of trees growing in dunes and 2) to develop methods based on tree-ring techniques to calculate the accumulation, erosion, and migration rates of several
  • 1992
  • Precisely dated tree-ring sequences of larch (Larix cajanderi Mayr) extending from 1801-1980 AD from Kamchatka lying in the far east of Asian continent were studied to see the influence of volcanic eruptions on tree growth and to assess
  • the potential of tree rings for dating ancient volcanic events.
  • 1992
  • Tree cultivation on private land in the Middle Hills of Nepal : lessons from some villagers of Dolakha district
  • Seedlings and saplings constituted the tree population on farm land in Dolakha district, Nepal, suggesting that many villagers began planting trees only recently in response to deterioration in publicly-owned forested areas. - (DWG)
  • 1992
  • Air quality ; Atmospheric pollution ; Biogeography ; Deforestation ; Disease ; Ecosystem ; Forest ; Northern hemisphere ; Pollution ; Tree species ; Trees ; Vegetation degradation ; Vegetation dynamics
  • 1992
  • Biogeography ; Chestnut tree ; Endemic disease ; Forest ; Mediterranean area ; Portugal
  • 1992
  • France ; Green space ; Landscape ; Perception ; Road ; Trees
  • 1992
  • Arid land;Arid environment ; Colorado ; Mountain ; New Mexico ; Palaeo-environment ; Palaeoclimate ; Periglacial features ; South Africa ; Tree line ; United States
  • 1992
  • Canada ; Climate ; Climatic variation ; Climatic warming ; Ecosystem ; Forest ; Global change ; Greenhouse effect ; Impact ; Model ; Temperature ; Tree line
  • 1992
  • On September 17, 1989, a hurricane devastated this tiny island : trees were defoliated, floods repositioned river channels, and most dwellings were damaged. But the relief effort also reinforced community solidarity.―(DWG)
  • 1992
  • Agricultural cooperative ; Farm ; Navarra ; Olive tree ; Spain
  • 1992
  • Alentejo ; Biogeography ; Drought ; Logging ; Portugal ; Tree ; Twentieth Century ; Vegetation degradation
  • 1992
  • Andes ; Development ; Ecosystem ; Firewood ; Forest ; Mountain ; Peru ; Rural population ; Tree species
  • 1992
  • This paper briefly reviews and tentatively discusses 1) former climatic changes and their impact on forests, 2) the impact of climatic warming on the genetic constitution of forest trees, their physiological processes, and the possible alteration
  • 1992
  • Cold area ; Earth surface processes ; Gelifluction ; Human impact ; Mountain ; Patterned ground ; Periglacial features ; Poland ; Slope ; Tatra Mountains ; Tree line ; Vegetation
  • 1992
  • Forest ; France ; Mental image ; Myth ; Perception ; Reforestation ; Tree
  • 1992
  • Applied ecology ; Environmental management ; Fir tree ; Forestry ; France ; Garrigue ; Languedoc-Roussillon ; Nîmes ; Phytogeography ; Reforestation
  • 1992
  • Agricultural crisis ; Agricultural policy ; Agricultural product ; Andalusia ; Irrigation ; Marketing ; Oil seeds ; Olive tree ; Sevilla ; Spain
  • 1992
  • Balkans ; Bulgaria ; Climatic variation ; Landslide ; Mountain ; Over-grazing ; Quaternary ; Slope ; Slope dynamics ; Soil erosion ; Tree line ; Vegetation
  • 1992
  • Atmospheric pollution ; Baden-Württemberg ; Forest ; Germany ; Nature conservation ; Pollution ; Tree ; Vegetation degradation
  • 1992
  • diversification are argued to be proximally controlled not only by dispersal opportunities but also by the dynamics of the dominant life-forms of the system, ie, the forest trees. Such hierarchical links, across trophic boundaries, should receive greater
  • 1992