Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Algal‐induced biogeomorphic feedbacks lay the groundwork for coastal wetland development
van de Vijsel, R.C.; van Belzen, J.; Bouma, T.J.; van der Wal, D.; van de Koppel, J. (2021). Algal‐induced biogeomorphic feedbacks lay the groundwork for coastal wetland development. JGR: Biogeosciences 126(10): e2021JG006515. https://dx.doi.org/10.1029/2021jg006515
Bijhorende data:
In: Journal of Geophysical Research-Biogeosciences. AMER GEOPHYSICAL UNION: Washington. ISSN 2169-8953; e-ISSN 2169-8961
|   |
| Trefwoord |
|
| Author keywords |
biogeophysics; coastal wetlands; sediment strength; drainage; algae; vegetation |
| Auteurs | | Top |
- van de Vijsel, R.C.
- van Belzen, J.
- Bouma, T.J.
|
- van der Wal, D.
- van de Koppel, J.
|
|
| Abstract |
Ecosystem establishment under adverse geophysical conditions is often studied within the “windows of opportunity” framework, identifying disturbance-free periods (e.g., calm wave climate) where species can overcome establishment thresholds. However, the role of biogeophysical interactions in this framework is less well understood. The establishment of saltmarsh vegetation on tidal flats, for example, is limited by abiotic factors such as hydrodynamics, sediment stability and drainage. On tidal flats, raised sediment ridges colonized by algal mats (Vaucheria sp.) appear to accomodate high densities of plant seedlings. Such ridges were previously found to have higher sediment strength than substratum without algae. Here, we investigate whether these measurements can be explained by geophysical factors only, or that biological (Vaucheria-induced) processes influence tidal marsh establishment by forming stabilized bedforms. We performed two experiments under controlled mesocosm conditions, to test the hypotheses that (a) Vaucheria grows better on elevated topographic relief, that (b) the binding force of their algal filaments increases sediment strength, and that (c) Vaucheria consequently creates elevated topographic relief that further facilitates algal growth. Our experimental results confirm the existence of this algal-induced biogeomorphic feedback cycle. These findings imply that benthic algae like Vaucheria may contribute significantly to tidal marsh formation by creating elevated and stabilized substratum. This suggests biogeophysical feedbacks can “widen” the windows of opportunity for further ecosystem establishment. Our results could be useful for the design of managed realignment projects aimed at restoring the unique ecosystem services of coastal wetlands, such as habitat biodiversity, carbon sequestration potential and nature-based flood defense. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
