This digital database is the product of collaboration between the U.S. Geological Survey, the Alfred Wegener Institute for Polar and Marine Research Potsdam, Foothill College GeoSpatial Technology Certificate Program, and the Geophysical Institute at the University of Alaska. The primary goal for creating this digital database is to enhance current estimates of organic carbon stored in deep permafrost, in particular Late Pleistocene syngenetic ice-rich loess permafrost deposits, called Yedoma. This deposit is vulnerable to thermokarst and erosion due to natural and anthropogenic disturbances. The original paper maps were issued by the Department of Natural Resources of the Russian Federation or its predecessor the...
Agricultural chemical movement through a field-size watershed in Iowa: Subsurface hydrology and distribution of nitrate in groundwater
Variations in super(87)Sr/ super(86)Sr ratios of calcites in Chinese loess: a proxy for chemical weathering associated with the East Asian summer monsoon
Characteristics of element dispersion and geochemical exploration for concealed ore deposits overlain by loess and red soil in eastern Gansu province, China
Influence of logging traffic on the hydromorphic degradation of acid forest soils developed on loessic loam in middle Belgium
The shrub-steppe area near Shaartuz, Tadzhik, S.S.R., is shown to be a net accumulator of dust despite being an occasional source of dust. For the accumulation of the dust to form the observed surface crust, a net deposition of about 290â€“490 g mâˆ’2 yrâˆ’1 of particles smaller than 20 Î¼m is required, depending on the duration of the deposition period. The particles smaller than 20 Î¼m are mixed with particles brought up from the sandy material below the surface crust by bioturbation and are incorporated into the surface crust. Measurements during the 16 and 20 September 1989 dust storms provided a total deposition of 41.1 g mâˆ’2 of particles smaller than 20 Î¼m. Because 10â€“30 dust storms...
Simulated Experimental Study on Normalized Integrated Model for Different Degrees of Erosion Control for Small Watersheds
Interactions between soil properties and moisture content in crust formation, runoff and interrill erosion from tilled loess soils