نتایج جستجو برای: Siahrood river

تعداد نتایج: 83561  

ژورنال: اکوبیولوژی تالاب 2019
, ,

Heavy metals tend to be adsorbed and accumulated in sediments as opposed to water or suspended solids. Sediments and biota bodis can act as a final sink for heavy metals in the aquatic environments. They accumulate through the food chain posing potential biological and ecological risks. Therefore, research on the heavy metal concentrations in aquatic ecosystems can help to protect human health ...

A. Asghari E. Taghvaye Salimi V. Gholami,

Rivers are important water resources for human life, but sometimes cause irreparable damages. The flood plains are fertile terrains which are endangered by flood. Flood hazard mapping is one of the basic methods in flood fighting. In order to decline flood damages, the simulation of the hydraulic behavior of the rivers during flood occurrence is very important. In this study, areas that are flo...

Journal: :caspian journal of enviromental sciences 0

rivers are important water resources for human life, but sometimes cause irreparable damages. the flood plains are fertile terrains which are endangered by flood. flood hazard mapping is one of the basic methods in flood fighting. in order to decline flood damages, the simulation of the hydraulic behavior of the rivers during flood occurrence is very important. in this study, areas that are flo...

حسین شمس, , سعید محتشم‌نیا, , مجید آقامحسنی فشمی, , محمد جنگجو, , احسان شهریاری, , حسن احمدی, , حسین ارزانی, , علی اصغر درویش صفت, , محمد جعفری, ,

Range suitability and its grazing capability are the most important criteria in rangeland analysis and monitoring. Determination and monitoring of factors affecting on range suitability and diagnosis of them are important .All range ecosystem components affect range suitability. Which among them physical and vegetational factors, forage production, water resources and sensitivity to erosion wer...

A Tashakori N Vaseli R Salehi Teleshi,

In a watershed, sediment arises due to the erosion and some factors such as pastures destruction,change users, no reasonable cultivation. That causes problems such as sedimentation in reservoirs andreduces their useful volume, reducing water quality in agricultural consumption; reduce the efficiencyof hydraulic structures and some other environmental problems. Changes in sediment load in a rive...

ژورنال: علوم آب و خاک 2006
حسین شمس, , سعید محتشم‌نیا, , مجید آقامحسنی فشمی, , محمد جنگجو, , احسان شهریاری, , حسن احمدی, , حسین ارزانی, , علی اصغر درویش صفت, , محمد جعفری, ,

Range suitability and its grazing capability are the most important criteria in rangeland analysis and monitoring. Determination and monitoring of factors affecting on range suitability and diagnosis of them are important .All range ecosystem components affect range suitability. Which among them physical and vegetational factors, forage production, water resources and sensitivity to erosion wer...

2016
W. G. Pridmore

or as the ends of a boiv are drawn together." They have a legend that it visits the country every thirty years. The epidemic arrived in Bhamo in June last, having travelled up the Irrawaddy Yalley starting in Rangoon in May and visiting Mandalay during the early part of June. It is interesting to note this following of the important trade route. It is not unlikely that the epidemic originated f...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2006
Ding Wang Xianfeng Zhang Kexiong Wang Zhuo Wei Bernd Würsig Gillian T Braulik Susie Ellis

DING WANG,∗†† XIANFENG ZHANG,∗ KEXIONG WANG,∗ ZHUO WEI,∗ BERND WÜRSIG,† GILLIAN T. BRAULIK,‡ AND SUSIE ELLIS§ ∗Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China †Texas A&M University, 4700 Avenue U, Building 303, Galveston, TX 77551, U.S.A. ‡Downstream Research Group, 3950 S. Fletcher Avenue, Amelia Island, FL 32034, U.S.A. §Conservation International, 1919 M Street, S...

Journal: :Epidemiology and infection 2012
A K Werner S Goater S Carver G Robertson G R Allen P Weinstein

In Australia, Ross River virus (RRV) is predominantly identified and managed through passive health surveillance. Here, the proactive use of environmental datasets to improve community-scale public health interventions in southeastern Tasmania is explored. Known environmental drivers (temperature, rainfall, tide) of the RRV vector Aedes camptorhynchus are analysed against cumulative case record...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعت آب و برق (شهید عباسپور) - دانشکده مهندسی عمران 1389

چکیده با توسعه شهر نشینی و دخل و تصرف غیر مجاز در حریم رودخانه ها خسارات زیادی به رودخانه و محیط زیست اطراف آن وارده می شود. در حال حاضر بر اساس آئین نامه اصلاح شده بستر و حریم رودخانه ها، حریم کمی رودخانه که بلافاصله پس از بستر قرار می گیرد از 1 تا20 متر از منتهی الیه طرفین بستر رودخانه تعیین، که مقدار دقیق آن در هر بازه از رودخانه مشخص نیست. در کشورهای دیگر روشهای متفاوتی من جمله: درصد ریسک...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید