نتایج جستجو برای: trash along river banks
تعداد نتایج: 443869 فیلتر نتایج به سال:
Varkesh-Chai River with approximately 69 kilometer and north-south trend, in one of the main and permanent rivers of Tabriz city, That 10 villages with worn out texture have established in its main bed. Field studies show that, villages’development has been without knowing the rules governing hydraulic behavior, prediction of river hydrological behavior, and no respecting the main bed of river,...
Extended abstract Introduction The vital need for river management is understood and predicts bank erosion processes. River bank erosion is one of the sediment major sources for many rivers across the world. Bank erosion is a key process in fluvial dynamics, affecting a wide range of physical, ecological and socio-economic issues in the fluvial environment. These include the establishm...
The Bundelkhand region has long been in the news for its lack of development, political tussles and water insecurity. By embarking on a riverwalk Bundelkhand, where we followed Betwa River foot 130 kilometres, were able to engage with range communities ecosystems better grasp both problems opportunities region. mode walking was essential our methodology, as it allowed us stop, listen absorb all...
The geochemical fingerprint of sediment retrieved from the banks of the River Manzanares as it passes through the City of Madrid is presented here. The river collects the effluent water from several Waste Water Treatment (WWT) plants in and around the city, such that, at low flows, up to 60% of the flow has been treated. A total of 18 bank-sediment cores were collected along the course of the r...
. . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . 230Th and 231Pa in the Ocean . . . Effect of Sea-level Change on 230Th Reconstructing Sea-level History . 4.5.1 Approach 1: one core . . . Summary . '. . . . . . . . . . . . . Acknowledgements . . . . . . . . . References . . . . . . . . . . . . . . Tables . . . . . . . . . . . . . . . . Figure captions . . . . . . . . . . . and...
Changes in hydrochemistry and Hg distribution in the Madeira River from Porto Velho to the confluence with the Amazon River were studied in two cruises in 1997 and 2002. Water conductivity was similar in both periods, but the pH was significantly higher in 2002, in particular along the middle reaches of the river. Total suspended matter concentrations also increased from 1997 to 2002 along the ...
prediction of spatial and temporal variation of water quality is vital for managing pollutantsdisposal into the rivers. depletion of dissolved oxygen (do) takes place due to the consumption of oxygen bymicrobes to digest bio-degradable pollutants which enter a water course. reaeration takes place in a specificrate depending on do deficit. many investigators have formulated models as an alternat...
tehran city has been subject of critical environmental challenges during the course of 20th. century namely: massive population growth, broad expansion, reduction in urban open/green spaces, increasing in energy consumption and waste production. releasing industrial wastewater into river valleys have led to considerable changes in structure of city's natural landscape. the natural structur...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید