نتایج جستجو برای: large river

تعداد نتایج: 1105254  

2017
Nils van Kessel Martijn Dorenbosch Jan Kranenbarg Gerard van der Velde Vadim Panov

Invasions by alien species may cause a decline in populations of vulnerable protected species through interference and resource competition. During the last decade, four invasive goby species of Ponto-Caspian origin have displayed rapid dispersal in The Netherlands. High densities of these species have been recorded in large rivers and hydrologically connected water bodies such as canals and fl...

Journal: :PROCEEDINGS OF HYDRAULIC ENGINEERING 2002

Journal: :اکو هیدرولوژی 0
یونس نوراللهی دانشکدة علوم و فنون نوین دانشگاه تهران حسین یوسفی دانشکدة علوم و فنون نوین دانشگاه تهران سعیده صادقی دانشکدة علوم و فنون نوین دانشگاه تهران سعید محمد زاده بینا دانشکدة انرژی و محیط زیست، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران سارا صادقی دانشکدة علوم و فنون دریایی، دانشگاه آزاد اسلامی واحد تهران شمال

in this paper, the results of surface and ground water quality monitoring during drilling of three deep exploratory wells in geothermal project in north west of sabalan in meshkinshahr are analyzed. the region has been investigated by various researchers to generate electricity using geothermal energy. drilling in deep geothermal projects, a variety of materials such as cement, bentonite, barit...

2018
Christopher L Dutton Amanda L Subalusky Shimon C Anisfeld Laban Njoroge Emma J Rosi David M Post

The Mara River Basin in East Africa is a trans-boundary basin of international significance experiencing excessive levels of sediment loads. Sediment levels in this river are extremely high (turbidities as high as 6,000 NTU) and appear to be increasing over time. Large wildlife populations, unregulated livestock grazing, and agricultural land conversion are all potential factors increasing sedi...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید