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Portail d'information géographique

Résultats de la recherche (50 résultats)

Local knowledge and the use of plants in rural communities in the montane forests of northwestern Argentina

The access botanical knowledge in rural communities, authors interviewed adults and children in four townships located in the subtropical montane forest region of the Province of Salta in northwestern Argentina. The four localities represented

New radiocarbon dates for the Vedde Ash and the Saksunarvatn Ash from Western Norway

[b1] University of Bergen, Botanical Institute, Bergen, Norvege

Land use and crop diversity in two Iban communities, Srawak, Malaysia

The difference in agricultural strategies of 2 Iban communities located in the hilly interior and the coastal zone of Sarawak, respectively, is studied through interviews, field measurements, and botanical collections. The main difference

Data on Holocene vegetation in the Atlantic Sahara in Palaeoecology of Africa and the surrounding islands-Vol 13.

Macro and micro botanical remains point to a Holocene environment of open grass and Chenopodiaceae vegetation, with varied herbs and some shrubs. The plant cover could have been somewhat denser than nowadays to explain the geomorphological

La forêt de Kalimantan Timur et sa mise en valeur

. The particularly high percentage of sought-after species, the quantity of growing stock, and the excellent form of the trees make this forest very valuable. Its detailed botanic complexity means that it is far from being rationally harvested at the present time

Botanical travel, climate and David Moore's moral geographies of Europe

Botanical travel, climate and David Moore's moral geographies of Europe

Application of eccentric growth of trees as a tool for landslide analyses : The example of Picea abies Karst. in the Carpathian and Sudeten Mountains (Central Europe)

[b3] Polish Academy of Sciences Botanical Garden, Center for Biological Diversity Conservation, Warsaw, Pologne
[b4] Silesian Botanical Garden, Mikołów, Pologne

Wind streaks: geological and botanical effects on surface albedo contrast

Wind streaks: geological and botanical effects on surface albedo contrast

Zonation of flora and vegetation of the northern declivity of the Karakoram/Kunlun mountains (SW Xinjiang China)

Botanical results of the « Sino-German Joint Expedition to K2, 1986 » are presented with remarks on vegetation of SW Kashgaria, the W Kunlun Shan and the N declivity of the central Karakoram mountains. The vertical and horizontal zonation

Stratygrafia, rozwój i kierunki sukcesyjne torfowisk strefy wododziałowej w Puszczy Knyszyńskiej

20 drillings and 53 soundings were made on the two watershed mires in norht-eat Poland. Subfossil plant communities were reconstructed on the basis of 120 analysis of the peat botanical composition, lines of plant succession and reaches plant

Two electric potential signatures of serial diurnal frost

Discussion of the data recorded in a research field at the University of Michigan Matthaei Botanical Gardens. The data set shows the low frequency effects of upward soil water advection increasing the soil temperature and modulating the electrolyte

A review of lichen growth and applied lichenometry in southwest and southeast Greenland

[b1] Botanical Museum, Natural History Museum, Univ., Copenhague, Danemark

Sedimentary basins: tectonic recorders of sediment discharge from drainage catchments

The major link between geomorphology and basin analysis is the sediment flux from catchment to basin. It is the various controls (lithological, morphological, climatic and botanical) upon the magnitude of sediment flux that link the 2 subjects

Holocene environmental changes in the Gebel Umm Hammad, Eastern Desert, Egypt

rock fragmentation is more active on the outside. The sedimentological and botanical study of fan deposits at the outlet of a karstic shaft in the Tree Shelter showed the local Holocene environmental evolution. Three periods of different degree

Die Fleuthkuhlen am Niederrhein. Untersuchung und Bewertung von Fluchtgebieten im Rahmen der Naturschutzplanung. (Les Fleuthkuhlen du Rhin inférieur. Etude et évaluation des zones de départ dans le cadre du plan de protection de la nature)

The Niederrheinische Fleuthkuhlen are a rank of eutrophic waters. Their ecological functions worthy of protection are be made subject of research by means of geoecological-botanical investigation and evaluation. An adequate biome-planning is made

L'évaluation des sites dans les remembrements ruraux. L'exemple du remembrement du Gerny (Rochefort)

and a regional rarity scale and the results ranked into five classes of value. Combining the ornithological and botanical values by means of the VAN DER MAAREL formula yields a global ecological assessment for each of the 353 ecotopes present in the land

Reconstruction of the long-term fire history of an old-growth deciduous forest in Southern Québec, Canada, from charred wood in mineral soils

The AA. used botanically identified and radiocarbon-dated charcoal macrofossils in mineral soils as a paleoecological tool to reconstruct past fire activity at the stand scale. Charcoal macrofossils buried in podzolic soils by tree uprooting were

Rainfall-driven Episodic Flood Events : are they a major factor in moulding New South Wales arid land vegetation patterns ?

to understand the botanical composition in flooded and control areas on 25 m2 fenced and unfenced plots subjected to flooding and non-flooding. For 6 years following flooding, species richness in the flooded area was twice that of unflooded areas. In particular

Flore pastorale de montagne. Tome 2 : graminées, légumineuses et autres plantes fourragères

to describe with high accuracy 57 fodder species at their vegetative stage. Moreover, 22 other fodder species which aren't leguminous species are described ; they belong to different botanic families. To each species described, there is a corresponding

Amazonian floodplains harbour minerotrophic and ombrotrophic peatlands

[b2] Finnish Museum of Natural History, Botanic Garden, Univ., Helsinki, Finlande