نتایج جستجو برای: myriophyllum spicatum and potamogeton perfoliatus aquatic plant species as an indicator organism of heavy metals pollution in bio
تعداد نتایج: 26366092 فیلتر نتایج به سال:
in order to evaluate the phragmites australis, myriophyllum spicatum and potamogeton perfoliatus aquatic plant species as an indicator organism of heavy metals pollution in bio-monitoring studies of the aquatic ecosystems, the aim of this study was to determine the levels of heavy metals accumulation zn, cu, pb and cd in sediments, roots, stems and leaves of these plants in north and south of t...
BACKGROUND We present herein our results regarding the accumulation of four heavy metals (copper, cadmium, lead, and zinc) in four aquatic species plants (Ceratophyllum demersum, Potamogeton pectinatus, Potamogeton lucens, Potamogeton perfoliatus) collected from the Danube River, South-Western part of Romania and their possible use as indicators of aquatic ecosystems pollution with heavy metals...
this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...
Reproductive allocation is a key process in the plant life cycle and aquatic plants exhibit great diversity in their reproductive systems. In the present study, we conduct a field investigation of three aquatic macrophytes: Stuckenia pectinata, Myriophyllum spicatum, and Potamogeton perfoliatus. Our results showed that widespread species, including S. pectinata and M. spicatum had greater plast...
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
We compared the heterotrophic community composition of bacterial biofilms on the submerged macrophytes Myriophyllum spicatum and Potamogeton perfoliatus and on an artificial surface in Lower Lake Constance (Germany) on spatial (plant age) and temporal scales using denaturing gradient gel electrophoresis (DGGE) and fluorescence in situ hybridization (FISH). M. spicatum contains polyphenolic alle...
Abstract This study aims to determine some physical and chemical factors their impact on the abundance distribution of submersible aquatic plants for four selected stations in southern marshes, two Eastern Hammar marshes (Al-Burga Al-Sada) Al-Chebiyesh (Abu-Sobat Al-Baghdadia). Water plant samples were collected seasonally during year 2018. The water temperature, electrical conductivity, depth ...
Background & Aims of the Study: Aquatic macrophytes, given their rapid growth and high bio mass production, great potential to accumulate heavy metals in their organs. Phragmites australis as a hyper-cumulative plant plays an important role in the bioremediation. The Badavar River of Noorabad, Lorestan province, is exposed to urban wastewater and agricultural runoffs. In order to heavy metals (...
the community dynamics of aquatic coleoptera(insecta)in one of the spring-stream habitats of bammo national park in fars province called cheshmeh-ye-ghanbari is studied as a pilot project and model for acquaintance with and furthering the biodiversity studies on fauna of iran. sixteen species-populations out of nineteen of this community were already identified for their taxonomy and for thei...
in this research we have studied the effect of some transition-metals (cu, ag and au) substitutions on two-electron reduction potential of flavins by application of dft method. all geometries have been optimized at blyp level of theory and “6-31+g** + lanl2dz” mixed basis set. the frequency job at the same method and basis sets has been performed to obtain gibbs free energy of compounds. it h...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید