نتایج جستجو برای: distance from rivers
تعداد نتایج: 5719811 فیلتر نتایج به سال:
rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...
Paraschistur anielseni is one of the main species of Paraschistura genus that is distributed in freshwater rivers which drain into the Persian Gulf. There has not been any study on genetic diversity of this species yet. In this investigation, 90 samples were collected from the rivers Shapour, Dalaki (Fars province) and Mand (Bushehr province) (30 samples per river) to investigate their populati...
BACKGROUND Native Amazonian populations managed forest resources in numerous ways, often creating oligarchic forests dominated by useful trees. The scale and spatial distribution of forest modification beyond pre-Columbian settlements is still unknown, although recent studies propose that human impact away from rivers was minimal. We tested the hypothesis that past human management of the usefu...
mahi sefid (cyprinidae) is an economically important fish in the south caspian sea. specimens was collected from the lamir river, sefid rud, shir rud and tajan rivers and analyzed at 38 microsatellite dna loci. eight primers out of the thirty analyzed loci were polymorphic in all sampling regions. the highest observed heterozygosity (1) was in locus ca1 in sefid rud and lowest was 0.07 in locus...
Investigating the factors affecting the occurrence of mass movements, help to identify sensitive areas and providing solutions and ways to control and proper management, partly to prevent the occurrence of mass movements. This research tried to recognize the factor affecting the occurrence of mass movements in the Forest Park Abidar watershed. In this research, information layers including lith...
The present study investigated morph metric characteristics of two populations of Alburnusatr opatenae in two rivers on north western Iran. In addition, the role of important ecological factors influencing morph metric features was studied. Ninety three specimens were collected from the Siminehrood (39) and Zarinerood (54) Rivers using electrocution. The specimens were photographed using a digi...
the aim of this study was to access the genetic differentiation of paraschistura sp. in kheirabad and brim rivers (zohreh river system, persian gulf basin), iran. for this purpose, 60 samples including 30 male and 30 female samples from each river were collected. a total of six microsatellite loci (bbar4, bbar7, ic228, ic230, ic434 and ic720) were used and all of them showed high polymorphism (...
The genetic population structures of the freshwater snail Bulinus globosus and its trematode parasite Schistosoma haematobium from 8 river sites in the Zimbabwean highveld were compared using randomly amplified DNA (RAPD) markers. There was significant variability between snail populations collected at different sites, but schistosome populations only showed differentiation at a wider geographi...
there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...
Ahwaz city located in area 8136 square kilometers with population 1338126 people in southwest of Iran in center of Khuzestan province. This city received average 19.56 megajol per square meter per day, average annual sunny day 3088.2 hours, skyline coefficient greater than 0.64 and air transparency more than 0.776 are high potential for use in solar energy systems. In this research, fuzzy AHP a...
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