Urban water systems are impacted by land use within their source watersheds, as it affects raw water quality and thus the costs of water treatment. However, global estimates of the effect of land cover change on urban water-treatment costs have been hampered by a lack of global information on urban source watersheds. Here, we use a unique map of the urban source watersheds for 309 large cities ...

in iran, fine grained formations (neogene's units) are very susceptible to erosion. also, they are the units producing runoff and causing soil loss in watersheds. the objectives of this study is to assess the effect of physical - chemical and mechanical properties of these formations on sediment and runoff rates at different rainfall intensities, based on using field simulator in taleghan ...

Climate change has increased the frequency of drought occurrence in various parts world. Drought as a complex phenomenon causes severe impacts on ecological and socio-economic status. Short-term long-term occurrences have made many regions vulnerable globally. This paper makes an attempt to assess vulnerability Godavari Middle Sub-basin India. Twenty-four site specific environmental factors wer...

On-site wastewater treatment systems (OWTSs) are widely used in the Southeastern United States for municipal wastewater treatment. As urban and suburban populations increase, the use of OWTSs is expected to further increase. This region heavily depends on surface waters for its water supply, therefore, the impact of OWTSs on surface water quality and quantity must be investigated. Conventional ...

0022-1694/$ see front matter Published by Elsevier doi:10.1016/j.jhydrol.2010.05.045 * Corresponding author. Tel.: +1 303 236 4882x313 E-mail address: [email protected] (A.J. Ranalli). We reviewed published studies from primarily glaciated regions in the United States, Canada, and Europe of the (1) transport of nitrate from terrestrial ecosystems to aquatic ecosystems, (2) attenuation of nitrat...