Environmental Science Center: المرسلات الحديثة
السجلات المعروضة 221 -- 240 من 430
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Determination of total flavonoid content by aluminum chloride assay: A critical evaluation
( Elsevier , 2021 , Article)Flavonoids are important natural bioactive compounds. Quantitation of total flavonoid content (TFC) is widely performed using the aluminum chloride colorimetric assay against a flavonoid standard assuming equal responses ... -
Severe vegetation degradation associated with different disturbance types in a poorly managed urban recreation destination in Iran
( Springer Nature , 2021 , Article)Recreational activities worldwide have major impacts on the environment. This study examined the impact of different kinds of recreational activities on plant communities in a highly visited park in Mashhad, Iran. Vegetation ... -
Changes in plant composition and diversity in an alpine heath and meadow after 18 years of experimental warming
( Springer , 2021 , Article)Global warming is expected to have large impacts on high alpine and Arctic ecosystems in the future. Here we report effects of 18 years of experimental warming on two contrasting high alpine plant communities in subarctic ... -
Diversity of arbuscular mycorrhizal fungi and its chemical drivers across dryland habitats
( Springer , 2021 , Article)Qatar is largely characterized by a hyper-arid climate and low soil fertility which create a stressful soil environment for arbuscular mycorrhizal (AM) fungi. In a study of AM fungal communities and their relationship with ... -
Litter decomposition above the treeline in alpine regions: A mini review
( Elsevier , 2021 , Article)Litter decomposition is a key driver of ecosystem processes and carbon cycling. Decomposition rate is influenced by numerous factors, such as temperature, humidity, litter properties, soil properties, and properties of ... -
Optimal Water-Fertilizer Combinations for Efficient Nitrogen Fixation by Sugarcane at Different Stages of Growth
( MDPI , 2021 , Article)High fertilizer application and over-irrigation in sugarcane systems can cause considerable N2O emissions. Optimized water-fertilization management which reduces N2O emissions, while maintaining sugarcane biomass, is ... -
Spatial variability of summer hydrography in the central Arabian Gulf
( Elsevier , 2021 , Article)The Arabian Gulf is a very significant ocean body, which hosts more than 55% of the oil reserves of the world and produces about 30% of the total production, and thus, it is likely to face high risk and adverse problems ... -
Effect of Plant Growth Regulators on Callus Induction from Leaf and Petiole explants of Hummeid (Rumex Vesicarius)
( Qatar University Press , 2021 , Poster)Advancement in plant cell culture technology has permitted the increasing interest in harvesting plant metabolites from cell cultures. This technique is based on in vitro propagation of plant callus which contains many ... -
Atmospheric Black Carbon over Qatar: Seasonal Variability and Source Apportionment
( Qatar University Press , 2021 , Poster)The earth’s atmosphere contains minute particles suspended within it. These atmospheric particles influence the earth's radiation budget through their ability to absorb and scatter radiation. Black carbon (BC) is a type ... -
Distribution, characterization and weathering of tarmats along the west coast of Qatar
( Qatar University Press , 2021 , Poster)Oil residue in the form of tarmat (TM) deposited on the coast of Arabian Gulf countries is a major environmental concern. In this study, the current TM pollution trend along the west coast of Qatar has been assessed and ... -
Variability of Physical and Biogeochemical Parameters in the Exclusive Economic Zone of Qatar
( Qatar University Press , 2021 , Poster)The oceanographic data collected along a transect in the Exclusive Economic Zone (EEZ) of Qatar during late summer (September 2014) and winter (January 2015) have been analyzed to investigate the spatial and temporal ... -
Coral Research and Nursery Farm Project
( Qatar University Press , 2021 , Poster)In the framework of the Coral Management Plan for the North Field Expansion Project (NFE) and North Field Production Sustainability Project (NFPS), Qatargas has partnered with the Environmental Science Center (ESC) to ... -
A comparative study of Seagrasses Species in Regional Seas and QMZ
( Qatar University Press , 2021 , Poster)Seagrasses are flowering monocot green plants that have adapted to marine life, and remain completely immersed in seawater and are primary producers of food for numerous marine animals. Seagrasses are of worldwide distribution ... -
Surface waves generated by shamal and easterly winds off Qatar
( Qatar University Press , 2021 , Poster)Waves in the Arabian Gulf are primarily controlled by the regional winds, for example, shamal winds during winter and early summer. Though Gulf wave characteristics have been heavily utilized for the design of offshore ... -
Preliminary Investigation of Heavy Metals in Deposited Dust on Roadside Sidr Leaves
( Qatar University Press , 2021 , Poster)Urban pollution has different forms; one of them is air pollution by natural sources such as dust storms or by anthropogenic sources such as traffic, whereas both are considered among the most risky environmental problems ... -
Assessment of Organic and Inorganic Pollutants Along The Qatari Coast
( Qatar University Press , 2021 , Poster)Qatar sits in the middle of the world's most important hydrocarbon producing areas where significant regional refining activity and shipping traffic take place. In addition to significant local coastline, development ... -
Towards Sustainable Management of Coastal and Offshore Islands in Arabian Gulf Typology: Sensitivity Analysis, Ecological Risk Assessment of Halul and Al-Alyia Islands
( Qatar University Press , 2021 , Poster)The great majority of marine ecosystems in Qatar are in fast decline and nearing collapse, where most ecosystem has lost the biological and economic functionality. Aiming to support the decision makers in the management ... -
Investigating the concomitant removal of hydrocarbons and heavy metals by highly adapted Bacillus and Pseudomonas strains
( Qatar University Press , 2021 , Poster)This study investigates the concomitant removal of hydrocarbons and heavy metals by highly adapted Bacillus and Pseudomonas strains. In regions characterized by harsh conditions such as Qatar, the weathering processes would ... -
Lithologic Characterization and Micropore Structures of Gas Shale Strata: An example from the Midra Shale of Western Qatar
( Qatar University Press , 2021 , Poster)Gas shale is the future hydrocarbon reservoir of Qatar. The Qatari geologic section has had important successions of gas shale at different geologic times including the Eocene Midra shale, the Cretaceous Ratawi and Nahr ... -
Mercury levels in tar mat contaminated beaches and its marine organisms living along the Qatari coasts
( Qatar University Press , 2021 , Poster)One of the pollutants that affects the coastal environment of Qatar is the vast expanse of oil residue ‘tarmats’ deposited on its beaches. The current study is aimed at gauging the concentration levels of total mercury ...