inscription
Portail d'information géographique

Résultats de la recherche (225 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Dendrochronologie et paléoclimatologie. in Paléoclimats. (Dendrochronology and paleoclimatology)
  • Geomorphological and dendrochronological analyses of a complex landslide in the Southern Apennines
  • Appennino ; Dendrochronology ; Dendrology ; Geological structure ; Italy ; Landslide ; Mountain ; Precipitation ; Seismicity ; Slope dynamics ; Snow ; Southern Italy
  • This paper integrates geomorphological analyses, instrumental measurements and dendrochronological approaches in assessing a large, reactivated landslide system on the southern piedmont of Monte Sirino (southern Italy). The landslide system
  • A dendrochronological method of studying tree mortality patterns
  • Biogeography ; Colorado ; Conifer ; Dendrochronology ; Dendrology ; Forest ; Mortality ; Mountain ; Spatial variation ; United States of America
  • This study examines the use of dendrochronological crossdating to determine the dates of death of dead-standing coniferous trees in subalpine forests in the Colorado Rocky Mountains. The objectives were: to evaluate the feasibility of crossdating
  • Two creeks interstade dated through dendrochronology and AMS
  • C 14 dating ; Dating ; Deglaciation ; Dendrochronology ; Meltwater ; North America ; Oxygen 18 ; Palaeo-environment ; Quaternary
  • Dendrochronological analysis of fossil wood from Two Creeks, Wisconsin, reveals that the Two Creekan Interstade lasted at least 252 yr. The sites crossdated by tree rings cover an area of about 970 km2. AMS determinations from the beginning and end
  • Dendrokronologian menetelmiä ja sovellutuksia. (Methods and applications of dendrochronology)
  • Dendrochronology, which studies tree rings for various purposes, has undergone rapid development in the past two decades. This may be attributed to the emergence of high-speed computers and the increase in interdisciplinary and international
  • cooperation. Dendrochronological research has expanded its geographical coverage, widened its scope and refined its approaches. This article attempts to introduce the fundamentals of this burgeoning science, dealing with a wide range of methods
  • A method for dendrochronological assessment of medium-term gully erosion rates
  • Arid area ; Dendrochronology ; Dendrology ; Erosion rate ; Gully erosion ; Murcia ; Rill wash ; Soil erosion ; Spain ; Watershed
  • The aims of this paper are : 1) to develop a methodology based on dendrochronology to estimate gully erosion rates; 2) to apply this method to gully sites selected in the Guadalentin basin in southeast Spain. The method is developed for Pinus
  • halepensis (Allepo pine), which is, from a dendrochronological point of view, the most thoroughly studied species in the Mediterranean region, and for 3 species with a regenerative capacity of their roots, such as Prunus dulcis (Almond tree) and Salix alba L
  • Floodplain dynamics of a wandering river, dendrochronology of the Morice River, British Columbia, Canada
  • Dendrochronological techniques are used to develop a history of flood occurrence and relative stage for the middle section of the Morice River based on flood scars, bank under cutting dates and tree establishment dates on fluvial features. During
  • Dendrochronology and Late Holocene history of Bering Piedmont Glacier, Alaska
  • Alaska ; C 14 dating ; Dendrochronology ; Dendrology ; Drainage ; Fluvioglacial features ; Glacier fluctuation ; Glaciolacustrine ; Holocene ; Moraine ; Palaeo-environment ; Quaternary
  • Dendrochronological analysis of debris flow disturbance on Rishiri Island
  • Alluvial cone ; Debris flow ; Dendrochronology ; Gully erosion ; Hokkaido ; Impact ; Island ; Japan ; Methodology ; Slope ; Volcano
  • The role of border areas for dendrochronological investigations on catastrophic snow avalanches : a case study from the Italian Alps
  • Alps (The) ; Avalanche ; Dendrochronology ; Dendrogeomorphology ; Dendrology ; Italy ; Mountain ; Slope ; Snow
  • ) the production of reaction wood even in apparently undisturbed trees and ii) the usefulness of border plants for dating past events. Different dendroecological indicators were investigated. The results confirm the possibility of applying dendrochronological
  • Dendrochronology and lichenometry : colonization, growth rates and dating of geomorphological events on the east side of the North Patagonian Icefield, Chile
  • Chile ; Dating ; Dendrochronology ; Glacial surge ; Glacier fluctuation ; Lake level ; Lichenometry ; Palaeo-environment ; Patagonia ; Plant colonization
  • vary widely due to differences in micro-environment. It demonstrates how dendrochronology and lichenometry can be used together in an assessment of each other's colonization and growth rates, and then cross-correlated to provide a supportive dating
  • Light rings in subarctic conifers as a dendrochronological tool
  • Reconstruction of modern debris flow activity in the arctic environment with the use of dwarf shrubs (south-western Spitsbergen) – a new dendrochronological approach
  • Arctic Region ; Cold area ; Debris flow ; Dendrochronology ; Dendrology ; Scrub ; Spitsbergen ; Svalbard
  • The aim of the paper is to show the potential of tundra dwarf shrubs in dendrochronological reconstructions of debris flow activity in the High Arctic. Wood anatomy characteristics of shrubs, such as : the number of growth rings in collected
  • of intensification in debris flow activity with the use of dendrochronology and dwarf shrubs, and with the one-year precision. The comparison of the time of debris flow occurrence with meteorological data, may, in future, allow determining the conditions of debris
  • Dendrochronology for the last 1400 years in eastern Tibet
  • China ; Climatic variation ; Dendrochronology ; Dendroclimatology ; Dendrology ; Drought ; Palaeogeography ; Thematic mapping ; Tibet
  • Contribution to understanding the historical evolution of meandering rivers using dendrochronological methods : example of the Mała Panew River in southern Poland
  • Bank erosion ; Channel geometry ; Dendrochronology ; Flood ; Meander ; Poland ; Riparian vegetation ; Silesia ; Stream ; Twentieth Century
  • Seasonal timing of rockfall activity on a forested slope at Täschgufer (Swiss Alps) - a dendrochronological approach
  • Alps (The) ; Dendrochronology ; Dendrology ; Forest ; Mountain ; Seasonal variation ; Slope ; Slope dynamics ; Switzerland ; Valais
  • Atmospheric circulation ; Climate oscillation ; Climatic warming ; Colorado ; Dendrochronology ; Dendrology ; El Niño ; Ocean atmosphere interaction ; Temperature ; United States
  • The inflence of climate associated with El Niño/Southern Oscillation (ENSO) events on tree growth in the central Colorado Front Range is investigated through the analysis of two high altitude tree-ring chronologies. Dendrochronological techniques
  • Alps (The) ; Dendrochronology ; Europe ; Holocene ; Mudflows ; Natural hazards ; Paleogeography ; Slope dynamics ; Slopes ; Statistics
  • The A. shows that it is possible to conduct a frequency analysis with dendrochronological methods by determining and dating the various growth responses of trees growing on debris flow cones, which have been buried by debris flows. The most reliable
  • Cracow ; Dendrochronology ; Dendrology ; Fluvial deposit ; Fluvial processes ; Oak ; Poland ; Sedimentology ; Valley ; Wisła
  • Detail geological and dendrochronological study of the Grabie gravel pit is presented. This site illustrates the existence of age differences between the alluvia (19 c.) and the inserted black oaks with dates cf c. 3 000 BP. The fall of tree trunks
  • Czech Republic ; Dendrochronology ; Flood ; Floodplain ; Geomorphology ; Historical account ; Holocene ; Watershed
  • dynamics of the Jeleni potok floodplain (Opava catchment) was analyzed in this study using dendrochronological and geomorphological methods. - (EN)