Hydromorphological Assessment as a Tool for River Basin Management: Problems with the German Field Survey Method at the Transition of Two Ecoregions
Bitte benutzen Sie diese Kennung, um auf die Ressource zu verweisen:
https://doi.org/10.48693/290
https://doi.org/10.48693/290
| Titel: | Hydromorphological Assessment as a Tool for River Basin Management: Problems with the German Field Survey Method at the Transition of Two Ecoregions |
| Autor(en): | El Hourani, Mariam Härtling, Joachim Broll, Gabriele |
| ORCID des Autors: | https://orcid.org/0000-0001-8600-0033 |
| Zusammenfassung: | Since the Water Framework Directive (WFD) came into force in 2000, data on the hydromorphological quality have been collected for all rivers in Europe. In Germany, a reference-based classification scheme is used (LAWA 2000) for hydrological assessment. The question arises whether this method can compensate sufficiently for a change of ecoregion. In our study of the Hase River in NW Germany, the frequency of the river classes was compared between two ecoregions (Lower Saxonian Mountains vs. Northwest-German Lowlands). In the lowlands, the evaluation shows a significantly higher proportion of class 5 river sections. This can mainly be attributed to the main parameters, longitudinal section, riverbed structure and bank structure. While the bad results in the longitudinal section and bank structure can be explained by changes in geology and anthropogenic pressures, the evaluation scheme cannot sufficiently compensate for changes in the riverbed structure. This problem is aggravated by the inconsistent implementation of the evaluation scheme in Germany, where the federal states use different approaches with regard to section length. Using 100 m sections throughout the river course can lead to severely underestimating the number of structures. Further improvement and standardization in the evaluation scheme seem to be necessary for the adjustment of the field survey method to different ecoregions in Germany. |
| Bibliografische Angaben: | El Hourani M.; Härtling J.; Broll G.: Hydromorphological Assessment as a Tool for River Basin Management: Problems with the German Field Survey Method at the Transition of Two Ecoregions. Hydrology. 2022; 9(7):120. |
| URL: | https://doi.org/10.48693/290 https://osnadocs.ub.uni-osnabrueck.de/handle/ds-202304188657 |
| Schlagworte: | water framework directive; river structure; reference-based river quality assessment; Lower Saxony; river Hase |
| Erscheinungsdatum: | 30-Jun-2022 |
| Lizenzbezeichnung: | Attribution 4.0 International |
| URL der Lizenz: | http://creativecommons.org/licenses/by/4.0/ |
| Publikationstyp: | Einzelbeitrag in einer wissenschaftlichen Zeitschrift [Article] |
| Enthalten in den Sammlungen: | FB01 - Hochschulschriften Open-Access-Publikationsfonds |
Dateien zu dieser Ressource:
| Datei | Beschreibung | Größe | Format | |
|---|---|---|---|---|
| El_Hourani_hydrology_2022.pdf | Article | 2,35 MB | Adobe PDF | El_Hourani_hydrology_2022.pdf  Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht:
Lizenz von Creative Commons
