نتایج جستجو برای: evlar maryan studying region of talesh countryside near karganrood river
تعداد نتایج: 21220875 فیلتر نتایج به سال:
variety of iran’s ecological structures has created many cultural landscapes. cultural landscapes, illustrate a combination of man’s persistent life and the art of land modification by means of natural environment and in the form of human settlements in past ages. currently, the human society’s development beside the scientific growth, man’s increasing use of natural resources and negative cons...
The aim of this study was to introduce the Karganrood River as one of the safe routes for releasing sturgeon fry. Karganrood River is located in the west of Gilan province in Talesh city. In the river, 3 sampling stations were considered. The range of changes in dissolved oxygen was 8.21 to 8.87 mg/l. The pH value ranged from 9 to 9.43. The amount of ammonia in station 3 was highest and in stat...
flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
from historical facts to geo-political realities: relation between turkey and armenia ( 1915 – 2010)
armenias geopolitics and its historical experience have had a determining impact on the character of its foreign policy .present-day armenia is a small, landlocked country with _11,620 square miles area armenias landlocked nature makes it dependent on the benevolence of its neighbors for access to the outside world a fact that gives it a sense of isolation and vulnerability. as it was indic...
the caspian sea contains great resources of oil and gas. the caspian sea is a 700- mile- long body of water in central asia, land located between azerbaijan, iran, kazakhstan, russia and turkmenistan. iran was challenges and opportunities in the caspian region. key question in this thesis includes three section that first question, opportunities of iran in the caspian region, second question ch...
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...
The purpose of this study is to determine the woody species diversity in Sweet chestnut tree, Hazel-tree and Italian cypress ecosystems in the Guilan forests. A lozeng 0.5 ha sample plot was selectively established on each site. In the Sweet chestnut ecosystems , 4 sites were classified, whereas 10 sites of Hazel tree and Italian cypress ecosystems were classified based on species composition. ...
abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...
this study was carried out to identify technical-agronomic factors impressible from fish farming in rice fields. this investigation carried out by descriptive survey during july-august 2009. studied cities including talesh, rezvanshahr and masal set in tavalesh region near to caspian sea, north of iran. the questionnaire validity and reliability were determined to enhance the dependability of t...
introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...
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