Chemical erosion ; Index ; Michigan ; Mineralogy ; Pedogenesis ; Quartz ; Relative dating ; Soil ; United States of America ; Weathering
. examine here the assumption that the degree of etching varies as a function of soil development even in soils of similar age. The spodosols they studied form a climate-mediated development sequence on a 13,000-yr-old outwash plain in Michigan. The data
Analyse de régression ; Dynamique de versant ; Déracinement ; Etats-Unis ; Forêt ; Michigan ; Mouvement de masse ; Pente de versant ; Sol sableux ; Versant
Forest ; Mass movement ; Michigan ; Regression analysis ; Sandy soil ; Slope ; Slope dynamics ; Slope gradient ; United States of America
An examination of 189 well-delineated mounds and pits in sandy soils of northern lower Michigan, all presumably formed by tree uprooting, was used to determine the effects of slope angle on morphology and volume, and to assess the potential
Années 1951-2000 ; Changement global ; Climat ; Etats-Unis ; Great Lakes ; Impact ; Michigan ; Modèle ; Neige ; Réchauffement climatique ; Sol ; Température du sol ; Wisconsin
Climate ; Climatic warming ; Global change ; Great Lakes ; Impact ; Michigan ; Model ; Snow ; Soil ; Soil temperature ; United States of America ; Wisconsin
The AA. modeled soil temperatures at 50-cm depth, using 1951-2000 air temperature and precipitation data from 194 National Weather Service stations in Wisconsin and Michigan. The accuracy and bias of the physical model used in this study were
validated by comparing its output data to 22,401 actual soil temperature readings taken from sandy soils at 39 forested sites throughout northern Michigan; the model was shown to have almost no temperature bias. The findings illustrate the complex response
Cartographie ; Dynamique de la végétation ; Ecologie ; Enseignement de la géographie ; Etats-Unis ; Etude intégrée ; Expérimentation de terrain ; Michigan ; Pédagogie ; Sol
Cartography ; Ecology ; Field experiment ; Integrated study ; Michigan ; Pedagogy ; Soil ; Teaching of geography ; United States of America ; Vegetation dynamics