Algae ; Biogenic process ; Carbonate ; Grain size distribution ; Holocene ; Marne ; Maryland ; Micromorphology ; Palaeo-environment ; Pond ; Sedimentology ; Soil ; Travertine ; United States of America
Certain calcareous soils occupying alluvial landscape positions in the Hagerstown (Great) limestone valley of western Maryland have developed from highly calcareous marl sediments of Holocene age.
1997
[b1] Dep. Crop and SoilScience, Univ. Georgia, Athens, Etats-Unis
regime in the soils. This study was to elucidate the capacity of soil carbon driving for the epi-karstification and the significance of carbon transfer in carbon cycles of karst system.
1997
[b1] College of Resource and Environment Science, Agricultural Univ., Nanjing, Chine
Biogenic process ; Burrowing animal ; Drainage ; Experimentation ; Japan ; Runoff ; Soil erosion ; Soil water ; Subsurface flow ; Water erosion
In this study, the effect of burrowing activity on subsurface water movement and piping erosion was studied in a flume experiment using cohesive soil. This laboratory observation on the interaction of burrowing activity of river crabs and subsurface
1997
[b1] School of Agricultural Sciences, Univ., Nagoya, Japon
Lithologically influenced geomorphic responses to Holocene climatic changes in the Southern Colorado Plateau, Arizona : a soil-geomorphic and ecologic perspective
Arid area ; Arizona ; Base level ; Climatic variability ; Climatic variation ; Ecosystem ; Fluvial processes ; Human impact ; Impact ; Over-grazing ; Plant cover ; River bed ; Semi-arid area ; Soil erosion ; United States of America
incision. This study reveals the importance of integrating soil and ecologic studies with geomorphological research.
1997
[b1] Dep. of Earth and Planetary Sciences, Univ. New Mexico, Albuquerque, Etats-Unis
In Manizales (Colombia) a hydrological study was carried out to find zones with positive pore-water pressures (potential failure zones) in volcanic soils with significant vertical changes in hydraulic conductivity. The locations of potential failure
1997
[b1] International Inst. for Aerospace Survey and Earth Sciences (ITC), Delft, Pays-Bas
Glaciation ; Loess ; Palaeogeography ; Periglacial features ; Pleistocene ; Quaternary ; Soilscience ; Stratigraphy ; United States of America ; Weathering ; Wisconsin