
The system-oriented ecological stress analysis is a method for determining the current ecological state of a watershed and to assess its recovery potential. Furthermore, restoration targets and associated restoration measures are proposed to achieve a good ecological status. This report describes the method development for high-gradient streams, which is applied to the Oostrumsche beek catchment. The main stressors responsible for ecosystem degradation are quantified on different spatial scales, from the catchment-level to instream measures on the reach to habitat scale. Several scenarios are outlined consisting of combinations of restoration measures. Also, macrofauna, fish and aquatic vegetation communities of the Geul catchment are described and it is determined which currently missing species could potentially establish in the streams if the restoration targets are met.
De systeemgerichte ecologische stressanalyse is een methode om op basis van de huidige toestand van een beek en de herstelpotentie knelpunten binnen een stroomgebied in kaart te brengen en te kwantificeren. Hieraan wordt vervolgens een streefbeeld gekoppeld en worden maatregelpakketten voorgesteld die nodig zijn om dit streefbeeld te bereiken. In deze rapportage wordt deze methodiek gebruikt om het stroomgebied van de Oostrumsche beek te analyseren. De milieustress in het stroomgebied wordt beschreven en er worden scenario’s geschetst met oplossingsrichtingen in de vorm van maatregelpakketten. Ook worden de huidige en potentiële levensgemeenschappen voor de organismegroepen macrofauna, vis en watervegetatie in beeld gebracht.
Life Science
Life Science
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