نتایج جستجو برای: taleghan

تعداد نتایج: 118  

M. Zamani Faradonbe S. Eagderi

The relationship between some habitat factors and fish assemblage was analyzed in the Taleghan River, Alborz Province, Iran. Fish specimens from thirty-three sites were sampled by electrofishing device in October 2014. The habitat parameters, including elevation (m), water depth (cm), river width (m), river slope (%), current velocity (m.s-1), number of large stone (> 15 cm), average stone diam...

Among the structural and non-structural methods of flood control, rockfill dams are a kind of detention structures that increase travel time and reduce the maximum instantaneous flood discharge. Due to the rapid and automatic effect of these dams, flood reduction happens more quickly. In this research, the best arrangement of rockfill dams at Taleghan basin was determined based on the cost of r...

Journal: :مرتع و آبخیزداری 0
سید علیرضا موسوی عضو هیئت علمی، دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان حسین ارزانی عضو هیئت علمی، دانشکده منابع طبیعی، دانشگاه تهران غلامعلی شرزه ای عضو هیئت علمی، دانشکده اقتصاد، دانشگاه تهران حسین آذرنیوند عضو هیئت علمی، دانشکدة منابع طبیعی، دانشگاه تهران مهدی فرح پور عضو هیئت علمی، مؤسسه تحقیقات جنگل ها و مراتع ایران استفانی انگل رئیس گروه تصمیم ‏سازی و اقتصاد محیط زیست مؤسسه eth سوئیس اسماعیل علیزاده

soil conservation is one of the most important regulative functions of natural ecosystems. this function is of high importance in taleghan watershed due to high erosion quantity and sediment accumulation in taleghan dam reservoir. soil loss reduction, sedimentation control and fertility conservation were considered as different aspects of soil conservation. effect of land use and vegetation cov...

Journal: :مرتع و آبخیزداری 0
سمانه رضوی زاده دانشجوی دکتری دانشگاه کشاورزی و منابع طبیعی ساری علی سلاجقه دانشیار دانشکدة منابع طبیعی دانشگاه تهران شهرام خلیقی سیگارودی استادیار دانشکدة منابع طبیعی دانشگاه تهران محمد جعفری استاد دانشکدة منابع طبیعی دانشگاه تهران

land use change is one of the main factors in the process of changing the regime of flood in watersheds. taleghan watershed has been subjected to many land use changes over years, which probably effects on flood characteristics of taleghan river. in present study the effects of land use change on some parameters including peak flow, volume and flood base time, in part of taleghan basin, was inv...

Journal: :مطالعات باستان شناسی 0
حجت دارابی دکتری باستان شناسی نازلی نیازی کارشناس باستان شناسی

like the adjacent areas including savojbolagh and tehran plain etc, taleghan is one of the regions susceptible to form iron age settlements at northern central part of iranian plateau. during an archaeological survey in this region in 2001, 19 zones were attributed to iron age region so that due to study on the findings resulting from this survey again, only ten of them included characteristic ...

Journal: :مرتع و آبخیزداری 0
هانیه صفری دانشجوی دکترا، دانشکده علوم کشاورزی ارگانیک، دانشگاه کاسل، آلمان حسین ارزانی استاد، دانشکده منابع طبیعی، دانشگاه تهران، ایران علی طویلی دانشیار، دانشکده منابع طبیعی، دانشگاه تهران، ایران

overgrazing and inappropriate use of taleghan rangelands has led to poor and very poor condition for almost all vegetation types. taking the importance of rangelands in forage production and other benefits into consideration, management of these rangelands and improving their condition seems essential. the present research was conducted using data integration of vegetation, condition, slope, so...

Journal: :journal of agricultural science and technology 2012
m. hosseini a. m. ghafouri m. s. m. amin m. r. tabatabaei m. goodarzi

in recent years, changes in catchments water balance due to land use management have become the main concern of water resources authorities in iran. due to rapid population growth and land use changes, especially construction of taleghan dam, taleghan catchment has undergone rapid changes such as urban development, declining of rangelands, and deterioration of environment and erosion of soil re...

Journal: :Water Resources Management 2021

Landuse change and climate are the main drivers of hydrological processes. The purpose this study was to analyse separate combined future effects landuse changes on water balance components different spatial temporal scales using integrated Soil Water Assessment Tool model. focused relationship between yield (WYLD) sediment (SYLD) in heterogeneous Taleghan Catchment Iran. For scenarios, RCP 4.5...

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