The Arabian Gulf ranks among the world’s most arid and warm regions; land has high salinity levels with many Sabkhas receives little precipitation. This region holds about one-third of oil supply. Qatar is leading gas producer worldwide, which raises concerns pollution sea, groundwater, soil. Thus, area paid particular attention to environmental studies since status this imposed unique biologic...

Selaginella (Selaginellales, Selaginellaceae) is the most speciose genus of lycophytes and, with approximately 750 recognized present-day species, also one largest genera vascular plants. However, evolutionary history this species richness remains largely unresolved. Recent research suggests that was diverse already in mid-Cretaceous and shows S. subg. Stachygynandrum dates back at least to inc...

Environmental stresses come in many forms, yet the most prevalent stresses have in common their effect on plant water status. The availability of water for its biological roles as solvent and transport medium, as electron donor in the Hill reaction, and as evaporative coolant is often impaired by environmental conditions. Although plant species vary in their sensitivity and response to the decr...

Forests in Mongolia have been severely degraded by forest fi re and exploitive logging. This study investigated changes in vegetation and soil properties after forest fi re or clearfelling. Microclimate conditions such as temperature and relative humidity (RH) changed drastically after forest fi re or logging; temperature increased 1.6-1.7 oC on average, whereas RH decreased up to 15.7 percent ...

A phytosociological study was conducted as an initial assessment of the vegetation on different sites to determine the community structure and how the communities were related based on their species composition and edaphic characteristics. The communities were distinct types ranging from halophytes to xerophytes with disturbed in nature. Plant communities based on first leading dominant species...