Zusammenfassung
Vegetation auf dem Deichvorland kann zum Küstenschutz beitragen, indem sie die Wellenenergie und somit mögliche Erosionen auf der Deichoberfläche reduziert bzw. dämpft. Für die Berücksichtigung der Vegetation als natürliches Küstenschutzelement muss die wellendämpfende Wirkung praxistauglich quantifiziert werden. Dazu wurde auf Basis empirischer Daten ein Entscheidungsbaum erarbeitet, der über die Eingabe von Wellen-, Vegetations- und Umgebungsparametern eine resultierende Dämpfungsklasse angibt. Die eingeschränkte Datengrundlage, insbesondere im Hinblick auf die Vegetationsparameter, ermöglicht bislang jedoch nur eine approximative Einschätzung des Dämpfungsverhaltens. Aus diesem Grund sollte die Datengrundlage zukünftig durch speziell für die Wellendämpfung relevante, biomechanische Pflanzenparameter erweitert werden. Erst hierdurch kann die hydrodynamische Wirksamkeit von Vegetation im Küstenschutz robust abgeschätzt werden.
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Soltau, F. et al. (2020). Die Küstenschutzfunktion von Deichvorlandökosystemen. In: Schüttrumpf, H., Scheres, B. (eds) Ökologische Aufwertung von Seedeichsystemen. Wasser: Ökologie und Bewirtschaftung. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-31507-8_3
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