Browsing Environmental Science Center by Title
Now showing items 316-335 of 466
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Observations of hydrographic properties, dissolved oxygen (DO) and chlorophyll-A (Chl-a) (phytoplankton biomass) within the exclusive economic zone (EEZ) of Qatar (central Arabian Gulf)
( Hamad bin Khalifa University Press (HBKU Press) , 2015 , Conference Paper)In situ observations of physical, chemical, and biological parameters of the Qatari water column were conducted to understand the temporal (seasonal) and spatial (regional) variability in the vertical and horizontal ... -
Observed variability in physical and biogeochemical parameters in the central Arabian Gulf
( Elsevier , 2021 , Article)In situ measurements of physical and biogeochemical variables were conducted along a transect in the Exclusive Economic Zone (EEZ) of Qatar during late summer (September 2014) and winter (January 2015) to investigate their ... -
Ocean acidification impacts on zooplankton
( CRC Pressv , 2020 , Book chapter)[No abstract available] -
Oil pollution in the Eastern Arabian Sea from invisible sources: A multi-technique approach
( Elsevier Ltd , 2019 , Article)The Eastern Arabian Sea (EAS) is affected by oil pollution, as often evidenced by the presence of tarballs along the West Coast of India (WCI). Tarball samples collected during May 2017 along the Goa coast were subject to ... -
Oil Spill Index (OSI) to Sentinel-2 satellite data: QU in International Contribution
( Qatar University Press , 2021 , Poster)An Oil Spill Index (OSI = (B3+B4)/B2) was developed and applied to Sentinel-2 optical satellite data of the European Space Agency (ESA) to map marine oil spills using spectral absorption characters of spectral bands of the ... -
Oil-polluted groundwater in central and west Iraq as indicator of potential new hydrocarbon plays
( Taylor and Francis Ltd. , 2023 , Article)The old land of Iraq is characterized by the presence of many oil seepages that date back to the Babylonian time. During the last few years, the country has witnessed an accelerating pattern of earthquakes that may have ... -
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 ... -
Organic materials amendments can improve NPK availability and maize growth by reducing heavy metals stress in calcareous soil
( Springer , 2023 , Article)The deficiency of nitrogen (N) and phosphorus (P) in calcareous soils of semi-arid climates is well recognized, and various green-based strategies have been employed to enhance their availability. However, the combined ... -
Origin of TPHs and PAHs in the marine sediment nearby oil and gas extraction sites on the west coast of Qatar
( Qatar University Press , 2021 , Poster)Total Petroleum Hydrocarbons (TPHs) and Polycyclic Aromatic Hydrocarbons (PAHs) are priority pollutants, which are known to be associated with petroleum products. They are released into the marine environment via accidental ... -
Outwelling from arid mangrove systems is sustained by inwelling of seagrass productivity
( Inter-Research , 2014 , Article)Mangrove forest productivity is normally sustained by nutrients from terrestrial runoff, with freshwater inputs driving the resulting outwelling of production, but arid mangroves lack this input. The movement of material ... -
PAH concentrations and exposure assessment from house dust retained in air-conditioning filters collected from Greater Doha, Qatar
( Springer Netherlands , 2019 , Article)Polycyclic aromatic hydrocarbons (PAHs) bound in dust retained in air-conditioning unit filters from 13 households in Greater Doha, Qatar, were quantified using GC–MS spectrometry. The median concentrations of ∑16PAH and ... -
PAHs and hopanes in the surface sediments of Qatar coast and their ecological risks: Comparison with regional and global coastal regions
( Elsevier Ltd , 2024 , Article)The distribution, characteristics, sources and ecological risks of polycyclic aromatic hydrocarbons (PAHs) and hopanes in the surface sediments collected along the Qatar coast were investigated. Concentration of ∑14PAHs ... -
Paleoproductivity shifts since the last 130 ka off Lakshadweep, Southeastern Arabian Sea
( Elsevier , 2021 , Article)Marine sediment deposited on the ocean floor and near coastal areas, the western coastal regions of India provide records of monsoonal shifts and productivity. To understand the paleoproductivity in the northern Indian ... -
Photocatalytic degradation of methylene blue using polyaniline-based silver-doped zinc sulfide (PANI-Ag/ZnS) composites
( Springer , 2022 , Article)This study set out to determine the photocatalytic degradation potential of polyaniline-based silver-doped zinc sulfide composite (PANI-Ag/ZnS) for effective degradation of methylene blue. The heterogeneous photocatalytic ... -
Photodegradation and Its Effect on Plant Litter Decomposition in Terrestrial Ecosystems: A Systematic Review
( MDPI , 2023 , Article Review)Photodegradation is an important mechanism that affects carbon and nutrient cycling; a significant amount of data has been reported previously. The present review includes the effect of a wider spectrum of solar radiation ... -
Physical drivers of chlorophyll and nutrients variability in the Southern-Central Arabian Gulf
( Academic Press , 2023 , Article)The southern-central Arabian Gulf demonstrates a poor understanding of nutrients and chlorophyll dynamics in physical-biogeochemical settings. Here, using data of chlorophyll, nutrients and hydrographic parameters collected ... -
Physico-chemical characteristics of oil produced from seeds of some date palm cultivars (Phoenix dactylifera L.) .
(2015 , Article)The oil content of saturated and unsaturated fatty acids with some physico-chemical properties and nutrients were investigated in oil produced from seeds of six important date palm cultivars and one seed strain present in ... -
Physiological and Yield Performance Is Partially Linked to Water Use Efficiency of Eggplant Genotypes in a High-Tech Glasshouse
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)Eggplant (Solanum melongena L.) has become an increasingly common vegetable grown in glasshouses. This study emphasized on the physiological traits and productivity of three eggplant cultivars (Longa, Lydia, and Tracey) ... -
Phytophthora-citrus interactions and management strategies: a review
( Turkiye Klinikleri , 2022 , Other)Citrus production is declining worldwide due to several biotic and abiotic factors. The diseases caused by Phytophthora spp. present major economic risks since they are soil-borne and spread quickly if environmental ... -
Phytoplankton along the coastal shelf of an oligotrophic hypersaline environment in a semi-enclosed marginal sea: Qatar (Arabian Gulf)
( Elsevier , 2013 , Article)Phytoplankton biomass (chlorophyll a concentration), primary production, abundance, species diversity and species groupings were measured in the coastal waters surrounding Qatar (Arabian Gulf) at 13 stations in February ...