نتایج جستجو برای: damghanroud river

تعداد نتایج: 83553  

2015
Xiaojun Deng Youpeng Xu Longfei Han Guang Li Yuefeng Wang Ataur Rahman

River systems are valuable to human beings; meanwhile, they are intensively influenced by human activities, especially urbanization. In this study, based on the data derived from topographic maps and remote sensing images, the temporal and spatial change of river system geomorphology in the Taihu Region over the past 50 years was investigated in conjunction with urbanization. Results demonstrat...

Ali Mohammad Akhoundalib Hadi Moazed Houshang Hasoonizadeh Javad Ahadian Mohammad Bagherian Marzouni, Nematollah Jaafarzadeh

Karun River is the largest and most watery river in Iran. This river is the longest river which located just inside Iran and Ahvaz Metropolis drinking water supplied from Karun River as well (fa.alalam.ir). Karun River as the main source of water treatment plants in Ahvaz, like most surface waters affected by various contaminants which caused changes in water quality of the river (www.aww.co.ir...

Journal: :Environmental Health Perspectives 1994
I I Wirgin C Grunwald S Courtenay G L Kreamer W L Reichert J E Stein

We determined levels of hepatic cytochrome P4501A (CYP1A) mRNA, hepatic DNA adducts, and fluorescent aromatic compounds (FACs) in bile, a measure of exposure to polyaromatic hydrocarbons, in Atlantic tomcod from six river systems ranging from highly polluted to relatively pristine on the northeast North American coast (the Hudson River, New York; the St. Lawrence River, Quebec; the Miramichi Ri...

Journal: :Remote Sensing 2015
Chuiqing Zeng Stephen Bird James J. Luce Jinfei Wang

This study proposed a natural-rule-based-connection (NRBC) method to connect river segments after water body detection from remotely sensed imagery. A complete river network is important for many hydrological applications. While water body detection methods using remote sensing are well-developed, less attention has been paid to connect discontinuous river segments and form a complete river net...

Journal: :Proceedings. Biological sciences 2007
Jörn P Scharsack Martin Kalbe Chris Harrod Gisep Rauch

Freshwater populations of three-spined sticklebacks (Gasterosteus aculeatus) in northern Germany are found as distinct lake and river ecotypes. Adaptation to habitat-specific parasites might influence immune capabilities of stickleback ecotypes. Here, naive laboratory-bred sticklebacks from lake and river populations were exposed reciprocally to parasite environments in a lake and a river habit...

2010
Markus Fischer Michael Burkart Vanessa Pasqualetto Mark van Kleunen

Aims Factors limiting distributions of species are fundamental to ecology and evolution but have rarely been addressed experimentally for multiple species. The conspicuous linear distribution patterns of plant species confined to river corridors in the Central European lowlands constitute an especially long-standing distribution puzzle. We experimentally tested our novel hypothesis that the tol...

2016
Junyu Zou

The carbon isotopic composition (δ13C) of dissolved and particulate inorganic carbon (DIC; PIC) was used to compare and analyze the origin, dynamics and evolution of inorganic carbon in two headwater tributaries of the Xi River, Southwest China. Carbonate dissolution and soil CO2 were regarded as the primary sources of DIC on the basis of δ13CDIC values which varied along the Nanpan and Beipan ...

2015
Xuewen Zhou Hongliang Wang X. W. Zhou H. L. Wang Alice Goudie

Google Earth, a software based on satellite’s images and database of navigation, gains features of high resolution, integrated images, quick update, convenience, simpleness and free cost. Practice of this software shows that it plays an important role in mapping, construction and river research. Based on the fundamental features of Google Earth, this passage makes an introduction to its applica...

Journal: :Environmental science & technology 2013
Gideon Bartov Amrika Deonarine Thomas M Johnson Laura Ruhl Avner Vengosh Heileen Hsu-Kim

Mercury stable isotope abundances were used to trace transport of Hg-impacted river sediment near a coal ash spill at Harriman, Tennessee, USA. δ(202)Hg values for Kingston coal ash released into the Emory River in 2008 are significantly negative (-1.78 ± 0.35‰), whereas sediments of the Clinch River, into which the Emory River flows, are contaminated by an additional Hg source (potentially fro...

To study the growth patterns of Alburnoides namaki in the salt lake, For this purpose a total of 325 specimens were sampled using by By hand trawl net with two centimeters mesh (20 mm distance from node to node) in winter of 2018. Male to female sex ratio in the population studied showed There was no significant difference between males and females in studied areas (X2 Gloushjerd=0.074, X2 Yunj...

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