Physical development without proper planning has limited ecological capacity and the ability of natural ecosystems. Urban river structure as one of the most important ecological infrastructures in the city provides a variety of ecosystem services, including landscaping, climate change, etc. which is strongly dependent on the structure and functional status of the river. This study was conducted...

this paper provides information on the geographic distributions of two cyprinid species: hemiculter leucisculus (basilewsky, 1855) and alburnus caeruleus heckel, 1843, in the world and the entire drainage systems in iran. the new distribution records were taken from maroon river (jarrahi river system) and chardaval river (karkheh river system), both in tigris river basin showing wide and narrow...

This study has shown that increasing levels of insecurity often arise from basin closure. This was subsequently shown to be the situation in the South African case study, particularly in the Incomati River basin and to a lesser extent the Limpopo River basin. This study has also shown that these increasing levels of insecurity could result in the securitization of water resource management, whi...

The issues of loss of quality of life and functional disruption of the river valleys are very important. In the present settlement system, the river valleys should not be places for reproducing poverty. To link the environmental values with urban development, the research is to answer the following question: How can the results of the integrated development of urban valleys be achieved via urba...

This commentary examines an "inconvenient truth" that phosphorus (P)-based nutrient mitigation, long regarded as the key tool in eutrophication management, in many cases has not yet yielded the desired reductions in water quality and nuisance algal growth in rivers and their associated downstream ecosystems. We examine why the water quality and aquatic ecology have not recovered, in some case a...

Analyses and investigations on river flow behavior are major issues in design, operation and studies related to water engineering. Thus, recently the application of chaos theory and new techniques, such as chaos theory, has been considered in hydrology and water resources due to relevant innovations and ability. This paper compares the performance of chaos theory with Anfis model and discusses ...