one of the most basic issues that currently the country and even the world is faced with the problem of lack of water and drying up of rivers, wetlands, lakes and etc. in this context, investigated for the reasons and the effects and consequences is essential. in this study, we have tried to use the swot matrix for drying river gamasyab be examined. in this regard, using the rating scale to the...

The ability to simulate the propagation of flood waves is of crucial importance for planning and operational management of river floods. Hydrodynamic and hydrologic numerical models provide such capabilities and represent conventional approaches to river flood modelling. In the recent years, data driven models such as artificial neural networks (ANNs), and neurofuzzy systems have also emerged a...

Floodplain forests are flood-dependent ecosystems. They rely on well-timed, periodic floods for the provision of regeneration sites and on tapered flood recession curves for the successful establishment of seedlings. These overbank flood events are described as "regeneration flows." Once floodplain forest trees are established, in order to grow they also require adequate, although variable, riv...

Examination of eight microsatellite DNA loci revealed high levels of genetic differentiation among populations of the African bonytongue Heterotis niloticus from three river basins that constitute important fishing areas in Benin. Low levels of population genetic differentiation were detected within the Ouemé-Sô River floodplain system. These results have important implications for conservation...

Groundwater plays a vital role in the arid inland river basins, in which the groundwater management is critical to the sustainable development of area economy and ecology. Traditional sustainable management approaches are to analyze different scenarios subject to assumptions or to construct simulation–optimization models to obtain optimal strategy. However, groundwater system is time-varying du...

This paper describes a spatially-explicit agent-based model of river basin land use and water management. The model is being implemented within a project aimed at investigating ways of synthesising stakeholder priorities, taking the EU Water Framework Directive as a case study. There are many human activities that take place in a river basin and can alter the ecological status of the water, and...

Large catchment basins may be viewed as ecosystems in which natural and cultural attributes interact. Contemporary river ecology emphasizes the four-dimensional nature of the river continuum and the propensity for riverine biodiversity and bioproduction to be largely controlled by habitat maintenance processes, such as cut and fill alluviation mediated by catchment water yield. Stream regulatio...

Diyala Governorate was recently exposed to high flood waves discharged from Hemrin Dam. Since the dam at its full capacity during period, these were River. Because of reduction in River 750m3/s, cities and villages on both sides river banks inundated. Thus, study's objective is design a escape out River, discharge wave through it. The simulation done by using HEC- RAS software. Two hundred twen...