The assessment of ecological status for running waters is one of the major issues within an integrated river basin management and plays a key role with respect to the implementation of the European Water Frame- work D...The assessment of ecological status for running waters is one of the major issues within an integrated river basin management and plays a key role with respect to the implementation of the European Water Frame- work Directive (WFD).One of the tools supporting the development of sustainable river management is physi- cal habitat modeling,e.g.,for fish,because fish population are one of the most important indicators for the e- colngical integrity of rivers.Within physical habitat models hydromorphological ...展开更多
This paper analyzes the situation at the Iffezheim barrage along the fiver Rhine.Since the start of operation in 1977 several million cubic meters of very fine sediment have been deposited in the reservoir.Be- cause o...This paper analyzes the situation at the Iffezheim barrage along the fiver Rhine.Since the start of operation in 1977 several million cubic meters of very fine sediment have been deposited in the reservoir.Be- cause of stability problems and reduced safety in the event of flooding,an extraction of the material is neces- sary.Chemical assays showed a high concentration of HCB.Therefore flushing without any additional measures is not appropriate.In order to leam more about the morphological and chemical in...展开更多
文摘The assessment of ecological status for running waters is one of the major issues within an integrated river basin management and plays a key role with respect to the implementation of the European Water Frame- work Directive (WFD).One of the tools supporting the development of sustainable river management is physi- cal habitat modeling,e.g.,for fish,because fish population are one of the most important indicators for the e- colngical integrity of rivers.Within physical habitat models hydromorphological ...
文摘This paper analyzes the situation at the Iffezheim barrage along the fiver Rhine.Since the start of operation in 1977 several million cubic meters of very fine sediment have been deposited in the reservoir.Be- cause of stability problems and reduced safety in the event of flooding,an extraction of the material is neces- sary.Chemical assays showed a high concentration of HCB.Therefore flushing without any additional measures is not appropriate.In order to leam more about the morphological and chemical in...
