نتایج جستجو برای: taleghan and babarekab
تعداد نتایج: 16827174 فیلتر نتایج به سال:
A standardized sampling technique for measuring plant diversity is needed to assist in resource inventories and for monitoring long-term trends in vascular plant species richness.With considering to the estimated richness amount (via different methods) are changing influenced by interaction of plot distance and shape, and also, presenting of a plot design (that can be near to reality) is import...
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...
There is a multifaceted approach of water resource in a watershed, which is accompanied by complexity and issues such as the interaction of natural and human systems. Achieving the consistent governance of water resources is one of the most important management approaches in the water sector, which requires a coherent structure of knowledge transfer and information on the organizations stakehol...
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...
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 ...
BACKGROUND Iranian propolis is a natural product of honeybees that has significant and varied anti-cancer benefits. The present study was designed to investigate the protective effects of Iranian propolis on gastric tissue carcinogenesis in an animal model. METHODS Propolis samples were collected from Hamadan and Taleghan districts of Iran, followed by ultra performance liquid chromatography...
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...
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...
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