Two new specimens of the oviraptorid theropod Nemegtomaia barsboldi from the Nemegt Basin of southern Mongolia are described. Specimen MPC-D 107/15 was collected from the upper beds of the Baruungoyot Formation (Campanian-Maastrichtian), and is a nest of eggs with the skeleton of the assumed parent of Nemegtomaia on top in brooding position. Much of the skeleton was damaged by colonies of derme...

A GIS tool to evaluate hydrogeological water balance based on a mass-balance model applied to surface and subsurface systems is discussed. The tool is designed for managers responsible for groundwater resource planning during conditions of water shortage. In developing the tool, the natural groundwater recharge was evaluated through the application of a soil water balance equation, and defined ...

This study presents a multi-disciplinary approach for the hydrogeological assessment and characterization of water resources in typical arid semi-arid areas with high anthropogenic pressure, where environmental conditions political context prevent extensive field surveys. The use three-dimensional (3D) conceptual model, integrating hydrochemical multi-isotope data, is proposed Batna Biskra area...

The capture of subsoil water by wheat roots can make a valuable contribution to grain yield on deep soils. More extensive root systems can capture more water, but leave the soil in a drier state, potentially limiting water availability to subsequent crops. To evaluate the importance of these legacy effects, a long-term simulation analysis at eight sites in the semi-arid environment of Australia...

Healthy soils provide the foundation for sustainable agriculture. However, soil health degradation has been a significant challenge agricultural sustainability and environmental quality in water-limited environments, such as arid semi-arid regions. Soils these regions is often characterized by low organic matter (SOM), poor fertility, overall productivity, thus limiting ability to build SOM. So...

Microbial communities in soils may change in accordance with distance, season, climate, soil texture and other environmental parameters. Microbial diversity patterns have been extensively surveyed in temperate regions, but few such studies attempted to address them with respect to spatial and temporal scales and their correlations to environmental factors, especially in arid ecosystems. In orde...