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The AA. use a paleoecological record of eastern Beringia , the Populus subzone, to illustrate the range of issues that must be considered in interpreting radiocarbon-dated paleoenvironmental data. In particular, the relative merits of several
climatic and paleoecologic hypotheses that have been advanced to explain the Populus subzone turn out to be highly dependent on the time scale used. Before discussing this example, the AA. illlustrate some of the potential effects of the calendar-age

Èkologičeskij monitoring zagrâzneniâ territorii Vasil'evskogo ostrova Sankt-Peterburga s ispol'zovaniem topolâ bal'zamičeskogo (Populus Balzamifera L.)
Surveillance écologique de la pollution du territoire de l’île Vassilievski de Saint-Pétersbourg et le rôle du peuplier baumier (Populus Balsamifera L.)
L’île Vassilievski est la zone la plus polluée de Saint-Pétersbourg avec un dense réseau de constructions résidentielles et industrielles. Les AA. ont choisi le peuplier baumier (Populus Balsamifera L.) en tant qu’indicateur de pollution. L’analyse

Le développement spatial et floristique des populations clonales de peupliers baumier (Populus balsamifera L.) au Nouveau-Québec in 25 anniversaire du Centre d'Etudes Nordiques.

The biogeomorphological life cycle of poplars during the fluvial biogeomorphological succession : a special focus on Populus nigra L.
that the modification of the hydrogeomorphological environment exerted, in particular, by the European black poplar (Populus nigra L.), increases its fitness and thus results in positive niche construction. The AA. focus on the fundamental phases of dispersal

Coastal GIS at the turn of the century

One of the objectives of this study was to determine to what extent the relationship between streamflow and the radial growth of mature Populus trichocarpa (black cottonwood) varies among sites as functions of geomorphology, hydrology and position

Les processus régissant la progression du delta de la Slave dans le Great Slave Lake, relations entre les formes du relief et les associations végétales: à prèles (Equisetum), à Carex, à saules (Salix), à aulnes (Alnus), à peupliers (Populus) et à

Caractères spécifiques des accumulations de Cu, Ni, Zn, Pb, Sr, Mn et Fe dans les feuilles de peupliers (Populus balsamifera) et de tilleuls (Tilia cordata) dans les parcs de loisir et les zones résidentielles de Moscou. Dynamique saisonnière de la

. The results indicate that the ecological type of Tamarix in the study area is a kind of Tugaic soil habitat based on the deep soil of the Populus Diversifolia forests and shrubs. This type of habitat can be divided into 3 kinds of sub-habitats which

afforestation sites (Populus tomentosa, Armeniaca sibirica, 8a Pinus tabulaeformis, and 24a P. tabulaeformis sites) along with the corresponding control sites. The identified sites in Shanxi Province were used to assess the effects of plant species

This paper jointly analyses multitemporal, multispectral ASTER data, continuous river stage and discharge data, and field observations of the growth rates of the dominant riparian tree species (Populus nigra) along a 21 km reach of the Tagliamento

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