نتایج جستجو برای: southeast of urmia lake

تعداد نتایج: 21172704  

Journal: رستنیها 2014
Abbas Samadi Asadollah Babai-Ahari Mahdi Arzanlou, Rosita Samadi Youbert Ghosta

Biodiversity of soil fungi was explored in soils of the National Park of Urmia Lake. For this purpose, 46 soil samples were collected from 5–15 cm depth and isolation was made using soil dilution plate and Warcup soil plate methods. Fungal isolates were identified based on cultural and morphological criteria. The results obtained in this study revealed that there is a rich diversity among hypho...

Journal: :natural environment change 0
khadijeh javan professor, climatology, urmia university, iran mohammad reza azizzadeh lecturer, department of geography, payame noor university, po box 3697-19395, tehran, iran saadi yousefi m.a in physical geography, payame noor university. urmia, iran

drought is one of the most important weather-induced phenomena which may have severe impacts on different areas such as agriculture, economy, energy production, and society. a number of drought indices have been introduced and used in various countries to date. in the current study, four meteorological drought indices including percent of normal precipitation index (pnpi), standard index of ann...

Journal: :international journal of environmental research 0
r. ahmadi iranian artemia research center, p.o. box: 57157-1367 urmia, iran f. mohebbi west azerbaijan water authority organization, urmia, iran p. hagigi west azarbaijan environment protection organization, urmia, iran l. esmailly west azarbaijan environment protection organization, urmia, iran r. salmanzadeh west azarbaijan environment protection organization, urmia, iran

this research summarizes the data on benthic macro invertebrates collected from 25 points in the urmia lake wetlands during november 2008 to february 2009. the purpose of the study was to assess the effects of elevated salinity and nutrient (nitrogen and phosphorus) levels on macro invertebrate abundance and composition. a total of 32 taxa were collected, and the common taxa, including chironom...

Journal: :international journal of environmental research 0
b. feizizadeh 1department of physical geography centre for remote sensing and gis, university of tabriz, iran, department of geography & geology centre for geoinformatics , university of salzburg, 5020, austria t. blaschke department of geography & geology centre for geoinformatics , university of salzburg, 5020, austria h. nazmfar department of geography and urban planning, university of mohaghegh ardabili, ardabil, iran m.h. rezaei moghaddam department of physical geography centre for remote sensing and gis, university of tabriz, iran

although typically small in terms of their spatial footprint, landslide hazards are relativelyfrequent in northern iran. we assess landslide susceptibility for the nearly 20.000 km2 large study area of the urmia lake basin which is dominated by agricultural land use but includes the major settlements areas of the east azerbaijan province, iran. landslide factors are established in form of gis d...

A Akhavan Sepahi, A Tukmechi A.A Motallebi Moghanjoghi M. A Amoozegar S Irannejad

Halophiles are in all three domains of life: Archaea, Bacteria and Eucarya. Halophilic microorganisms in addition to form major part of life biodiversity can have many biotechnological applications. The objective of this research is isolation and identification of halophilic bacteria from Urmia Lake in Iran and the study of its bacterial biodiversity. After sampling of brines from Urmia Lake fr...

Journal: :international journal of environmental research 2013
b. feizizadeh t. blaschke h. nazmfar m.h. rezaei moghaddam

although typically small in terms of their spatial footprint, landslide hazards are relativelyfrequent in northern iran. we assess landslide susceptibility for the nearly 20.000 km2 large study area of the urmia lake basin which is dominated by agricultural land use but includes the major settlements areas of the east azerbaijan province, iran. landslide factors are established in form of gis d...

Journal: :Traitement Du Signal 2022

Urmia Lake, which is the second largest permanent hypersaline lake in world, shrinking recent decades. Since accurate spatial information about essential to managing current and emerging crises of lake, this study used Lake satellite images time-series investigate drought trends by analyzing via Artificial Neural Networks (ANN). The proposed approach comprising following four steps. First, year...

Journal: :مدیریت مخاطرات محیطی 0
امیر صفاری دانشیار و عضو هیأت علمی گروه ژئومورفولوژی، دانشگاه خوارزمی سعید رحیمی هرآبادی دانشجوی دکتری ژئومورفولوژی، گروه ژئومورفولوژی، دانشگاه خوارزمی سعید گودرزی مهر کارشناس ارشد سنجش از دور و gis، گروه سیستم اطلاعات جغرافیایی، دانشگاه تهران هادی کریمی دانشجوی دکتری ژئومورفولوژی، گروه ژئومورفولوژی، دانشگاه خوارزمی

identifying the change trends in forms of land surface is one of the main topics in geomorphic system. in this view, we try to assess the stability level of geo systems, boundary changes, instability and prediction of surface forms and processes response. this paper tries to conduct a comparative analysis on the geomorphic equilibrium paradigms, critical thresholds, environmental and natural ha...

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