inscription

Portail d'information géographique

Résultats de la recherche (5 résultats)

Mapping soils, vegetation, and landforms : an integrative physical geography field experience

) or gravelly zones. Ecological data suggest that the oak forests will, baring major disturbance, become increasingly dominated by red maple.
2005

Sediment budget for an eroding peat-moorland catchment in northern England

were selected to represent the major erosion subsystems within the catchment : an area of bare peat flats, a pair of peat gullies, and a 300 m channel reach.
2005

Quantifying the effect of a freeze-thaw cycle on soil erosion : laboratory experiments

an upper bound on FT effects, and completed 3 series of 6 experiments each to quantify differences in soil erosion and rill development in a bare soil following a single FT cycle. As both FT and C results were highly sensitive to initial conditions, minimum
2005

Rates of erosion and topographic evolution of the Sierra Nevada, California, inferred from cosmogenic Al 26 and Be 10 concentrations

The AA. dated caves in canyon walls, Sierra Nevada, using Al 26/Be 10 dating to document rates of river incision into bedrock, a primary means by which landscapes respond to tectonic forcing. They also measured nuclide concentrations in bare bedrock
2005

Soil production in heath and forest, Blue Mountains, Australia : influence of lithology and palaeoclimate

Sites in the Blue Mountains show a sharp decrease of soil depth where vegetation changes from forested plateau surfaces to heath-covered spurs, and bands of bare rock in the heath suggest that soil production depends on soil presence of a finite
2005