Impacts of hydromorphological degradation and disturbed sediment dynamics on ecological status. Deliverable 3.1 of REFORM (REstoring rivers FOR effective catchment Management), a collaborative project (large-scale integrating project) funded by the European Commission within the 7th Framework Programme under Grant Agreement 282656.

摘要: There is an acknowledged need among stakeholders that new hydromorphological metrics are required to facilitate site remediation and for reporting at national European levels. Pressure/ impact data were assembled from across Europe. The task was challenging, but useful information gathered. For each major pressure, the physical response gradients of rivers summarised as diagnostic diagrams. For first time we provide evidence indicating HYMO could be developed monitoring on fish macrophytes. For demonstrate potential derive sensitive fine sediment. We phytobenthos (diatoms), invertebrates macrophytes have used in combined metrics. We found many existing macroinvertebrate lack specificity can false positive responses suggesting disentanglement multi-stressor critical good diagnosis. There aquatic habitats protected under Habitats Directive will increasingly vulnerable hydrological pressures with changing climate. Frequently, overlooked topics such sediment quality groundwater issues ought supplement or included assessments due their explaining variance biological datasets. Land-use a spatial scale beyond reach (corridor catchment) relates site-specific more robust way assessing impacts.