River systems have been altered worldwide by dams and diversions, resulting in a broad array of environmental impacts. The use of a process-based, hierarchical framework for assessing environmental impacts of dams is explored here in terms of a case study of the Kootenai River, western North America. The goal of the case study is to isolate and quantify the relative effects of multiple dams and...

one of the characteristics in iranian model of desertification potential assessment (imdpa) is vegetation. sincevegetation is very important factor in the degradation of land, so some indices were determined for this item in order toevaluate desertification potential of arid, semi arid and arid sub humid areas of iran. the indices included vegetationcondition, exploit and revegetation. to calib...

River systems have been altered worldwide by dams and diversions, resulting in a broad array of environmental impacts. The use of a process-based, hierarchical framework for assessing environmental impacts of dams is explored here in terms of a case study of the Kootenai River, western North America. The goal of the case study is to isolate and quantify the relative effects of multiple dams and...

During the mid-twentieth century the construction of hydroelectric dams in developing countries became a contentious issue in economic and political arenas. Governments and pro-damming parties, particularly those with a direct commercial interest, often consider the dams to be necessary for economic growth, as well as being in the national interest. Others directly impacted by the altered hydro...

Abstract Intensification of extreme rainfall-runo events in arid and semi-arid regions because climate change induce the water erosion that contributes considerably to loss vegetal layers soils reduce storage capacity dams by silting transported sediments from watershed impoundment. This paper aims at proposing means for protecting Mghila dam against identification delimitation vulnerable areas...