نتایج جستجو برای: mench river

تعداد نتایج: 83566  

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...

2016
Silvia Kainzinger Arne Arnberger Robert C Burns

Whitewater boaters often choose a river based on their preferences for attributes important for their trip experience. This study explored whether preferences and tradeoffs of whitewater boaters for social, resource, and managerial attributes of riverscapes differ among a high and a low use river in the United States by employing a stated choice approach. River trip scenarios were displayed usi...

Siamak Boudaghpour

Rivers can absorb certain amounts of contamination relying on different factors such as: river discharge, the primary conditions of the river, the river depth, discharge and the river viscosity of the offloaded wastes in the river. From parameters of water quality point of view, it is recom-mended to determine some parts of the river which are lower than the standard level in order to find out ...

Journal: :The Southeast Asian journal of tropical medicine and public health 2012
Florence C H Lee S L Hakim M A Kamaluddin Kwai Lin Thong

Clostridium perfringens (CP) and sulphite reducing clostridia (SRC) densities in the Selangor River, Bernam River and Tengi River Canal were examined between April 2007 and January 2008. Water samples were taken from two or three locations along each river, using either depth-integration or grab sampling methods. The downstream sampling site of the Selangor River, Rantau Panjang, reported the h...

2014
Galina V. Merkuryeva

The paper presents the state-of-the-art in flood forecasting and simulation applied to a river flood analysis and risk prediction. Different water flow forecasting and river simulation models are analysed. An advanced river flood forecasting and modelling approach developed within the ongoing project INFROM is described. It provides an integrated procedure for river flow forecasting and simulat...

Journal: :پژوهش های جغرافیای انسانی 0
میثم جمالی دانشجوی دکتری ژئومورفولوژی دانشگاه آزاد اسلامی، واحد علوم تحقیقات تهران ابراهیم مقیمی استاد ژئومورفولوژی دانشگاه تهران زین العابدین جعفرپور استادیار اقلیم شناسی دانشگاه آزاد اسلامی، واحد علوم تحقیقات تهران پرویز کردوانی استاد جغرافیای طبیعی، دانشگاه آزاد اسلامی، واحد علوم تحقیقات تهران

introduction the khoshk river is originated from golestan and ghalat highlands and flow in a northwest and southeast direction. after traversing a short distance it covers golestan and dukohak from the right and the ghasr ghomshe tributary from the left. then, in a direct cross from the middle of shiraz metro police, it will divide it into half in south and east and at the end it will pour into...

Journal: :Brazilian journal of biology = Revista brasleira de biologia 2006
J F V Biudes A F M Camargo

We compared the values of the biomass, chemical composition and nutritive value of the emergent aquatic macrophyte S. alterniflora in a river affected by the discharge of domestic sewage (Guaú River) and in an unpolluted river (Itanhaém River). S. alterniflora, water and sediment samples were obtained in the two rivers in November, 2001. The Guaú River presented the highest levels of Total-N an...

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