Paleoenvironmental reconstructions on a (supra-)regional scale have gained attention in Quaternary sciences during the last decades. In terrestrial realms, loess deposits and especially intercalations of buried soils, so called loess-paleosol sequences (LPS) are important archives to unravel response e.g. climatic fluctuations reconstruct paleoenvironments Pleistocene. The analysis LPS requires...

The loess stratigraphic boundary at the Pleistocene/Holocene transition defined by the magnetic susceptibility (MS) has previously been assumed to be synchronous with the Marine Isotope Stage (MIS) 2/1 boundary, and approximately time-synchronous at different sections across the Chinese Loess Plateau (CLP). However, although this assumption has been used as a basis for proxy-age model of Chines...

Bacteria and archaea sustain subsurface cave ecosystems by dominating primary production and fueling biogeochemical cyclings, despite the permanent darkness and shortage of nutrients. However, the heterogeneity and underlying mechanism of microbial diversity in caves, in particular those well connect to surface environment are largely unexplored. In this study, we examined the bacterial abundan...

Research on permafrost carbon has dramatically increased in the past few years. A new estimate of 1672 Pg C of belowground organic carbon in the northern circumpolar permafrost region more than doubles the previous value and highlights the potential role of permafrost carbon in the Earth System. Uncertainties in this new estimate remain due to relatively few available pedon data for certain geo...

The change in the stress-strain state is analyzed on example of a complex underground part silo "loess soil base – foundation strip undersilo tunnel gallery compacted bottom slab" system as an indicator for assessing serviceability this type industrial structure.
 Based analysis existing design documentation and field surveys, main stages structure's operation during its construction subse...

This study deals with a methodical identification and evaluation of physical-mechanical properties of one genetic type of geological structure. This is represented by an engineering-geological zone of eolian sediments, which is regionally rather abundant. The paper contributes to a need to identify typical soil properties for widespread geological environments in a particular region and thus ad...

Iron-manganese (Fe-Mn) concentrations are common morphological indicators of soil oxidation-reduction reactions and widely used to infer hydrology. The factors determining occurrence distribution Fe-Mn at the continental scale have been rarely studied. objective this study was explore in upland loess soils identify their favorable environment conditions mid-continental North America. A total 39...

The Loess Plateau region in northwestern China has experienced severe water resource shortages due to the combined impacts of climate and land use changes and water resource exploitation during the past decades. This study was designed to examine the impacts of climatic variability on streamflow characteristics of a 12-km watershed near Tianshui City, Gansu Province in northwestern China. Stati...

Wind erosion of soil is an appreciable but unstudied event following fires in cold desert. We examined aeolian transport of sediment for 1 year following fire in semi-arid shrub steppe on loess soils in southern Idaho, USA. Sediment collectors were used to determine horizontal mass transport of soil and saltation sensors and anemometers were used to determine saltation activity (fraction of tim...