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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Physical processes in the Rufiji delta and their possible implications on the mangrove ecosystem Francis, J. (1992). Physical processes in the Rufiji delta and their possible implications on the mangrove ecosystem, in: Jaccarini, V. et al. The ecology of mangrove and related ecosystems: Proceedings of the international symposium held at Mombasa, Kenya, 24-30 September 1990. Developments in Hydrobiology, 80: pp. 173-179. https://dx.doi.org/10.1007/978-94-017-3288-8_18 In: Jaccarini, V.; Martens, E.E. (Ed.) (1992). The ecology of mangrove and related ecosystems: Proceedings of the international symposium held at Mombasa, Kenya, 24-30 September 1990. Reprinted from Hydrobiologia, vol. 247. Developments in Hydrobiology, 80. Springer Science+Business Media: Dordrecht. ISBN 978-0-7923-2049-4; e-ISBN 978-94-017-3288-8. XII, 266 pp. https://dx.doi.org/10.1007/978-94-017-3288-8, meer In: Dumont, H.J. (Ed.) Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht. ISSN 0167-8418, meer Is gerelateerd aan: Francis, J. (1992). Physical processes in the Rufiji delta and their possible implications on the mangrove ecosystem. Hydrobiologia 247: 173-179. https://dx.doi.org/10.1007/BF00008216, meer

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Beschikbaar in	Auteur
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Documenttype: Congresbijdrage

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Trefwoord

Brak water

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Auteur		Top
Francis, J., meer

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Abstract

The physical processes such as coastal currents, estuarine circulation and monsoon winds prevailing in the Rufiji delta are discussed. The relationship between these processes and the occurrence of long-term trapping of the river discharge and the outflow of waters from the mangrove swamps into the nearshore zone has been observed. The trapped waters in the nearshore zone significantly reduce the mixing between the estuarine and offshore waters, leading to the two waters having distinctive properties. The existence of the trapped waters in the nearshore zone is supported by evidence from a satellite image and aerial photograph and measurements of salinity and suspended sediment concentration. The trapping phenomenon is discussed in the light of its possible implications on the ecology of mangrove ecosystems. Trapping may explain the enhanced growth of the mangrove in the delta compared to other areas. This trapping effect may be providing more time for nutrient retention in the mangrove zone, incorporation of the decomposed leaf litter and fine sediments in the substrate, and settling of fruits and seedlings in the swamps, thereby enhancing the regeneration of the mangrove.

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