Formations végétales et sols dans les mangroves des Rivières du Sud

Sow, Mamadou; Diallo, A.; Diallo, N.H.; Dixon, C.; Guissé, Aliou

doi:10.4000/books.irdeditions.3690

Cited by 2 publications

(4 citation statements)

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“…Therefore, a typology based on height, density of vegetation cover, and the presence/absence of plant species was adopted (Figure 9, Supplemental material). Finally, the morphology of the classes and their locations (Figure 9) seem to agree with the high-resolution data and with theoretical and empirical knowledge of the field (Sow et al, 1991;Ndour et al, 2012;Andrieu et al, 2020 ). The high mangrove facies have patches with rather long morphologies and are located at the edge of the channel.…”

Section: Spectral Seasonality-based Mangrove Zonation Classification ...supporting

confidence: 80%

“…Species composition, in addition to vegetation cover and tree height, is spatially structured in zonation, and can be subdivided into plant formations. Mangroves in Senegal and Guinea-Bissau have the same zonation patterns (Sow et al, 1991), but the studied hydrosystem showed unique features. In the Saloum Delta (and the Casamance Estuary), the salinity increases from downstream to upstream (Barusseau et al, 1985;Descroix et al, 2020), whereas the estuaries of Gambia and those located in Guinea-Bissau, for example, have a river input and upstream salinity levels closer to those of fresh water.…”

Section: 1study Sitementioning

confidence: 92%

“…Rhizophora racemosa, Rhizophora mangle, and Avicennia germinans (Sow et al, 1991;Ndour et al, 2012;Andrieu et al, 2020;Lombard et al, 2020). Species composition, in addition to vegetation cover and tree height, is spatially structured in zonation, and can be subdivided into plant formations.…”

Section: 1study Sitementioning

confidence: 99%

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Mangrove zonation mapping in West Africa, at 10-m resolution, optimized for inter-annual monitoring

Lombard

Soumaré

Andrieu

et al. 2023

Ecological Informatics

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Section: Spectral Seasonality-based Mangrove Zonation Classification ...supporting

confidence: 80%

Section: 1study Sitementioning

confidence: 92%

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Mangrove zonation mapping in West Africa, at 10-m resolution, optimized for inter-annual monitoring

Lombard

Soumaré

Andrieu

et al. 2023

Ecological Informatics

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“…A mixture of white mangroves (Avicennia africana) and Rhizophora followed, with a layer of Avicennia situated behind. 38 In coastal Guinea, mature mangrove forests exhibited a classic pattern of zonation from the riverbank to dry land : 'Rhizophora, dense Avicennia, clear Avicennia, Avicennia and Laguncularia, prarie to Philoxerus and Sesuvium '. 39 Biologists and botanists attribute patterns of mangrove zonation to several factors.…”

Section: N D I G E N O U S K N O W L E D G E O F T H E C O a S T A mentioning

confidence: 99%

UNTANGLING THE MANY ROOTS OF WEST AFRICAN MANGROVE RICE FARMING: RICE TECHNOLOGY IN THE RIO NUNEZ REGION, EARLIEST TIMES TO c. 1800

Fields-Black

2008

J. Afr. Hist.

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This study focuses on the ancient past of coastal Guinea's Rio Nunez region, a coastal rice-growing region virtually unexplored by studies of West African rice and rice farmers. It argues that coastal cultivators have adapted mangrove rice-farming systems in situ for approximately the past 1,000 years, a historical period pre-dating the European travelers' accounts on which the current literature heavily relies. Rather than diffusing from the interior, these specialized farming systems grew organically out of land-use systems. Using the comparative method of historical linguistics and cultural vocabulary, the study establishes different stages in coastal farmers' experimentation, adaptation and specialization in the coastal environment and approximates historical dates when the different stages occurred. And with botanical and biological studies of mangrove vegetation, the study distinguishes between the softer, spongy roots of white mangroves and hard, twisted roots of red mangroves. The interdisciplinary evidence reveals that knowledge of white mangroves was an early formative stage in cultivators' fabrication of coastal land-use systems. Lastly, from an examination of loanwords, the study discusses the important contributions made by Mande groups, who speak the Susu language in the Rio Nunez region, in intensifying mangrove rice-farming systems indigenous to the coast and extending them from zones of white to those of red mangroves. The interdisciplinary methods and sources enable the study to capture localized experimentation and innovation as continuous processes, thereby breaking with the current literature's emphasis on diffusion from the interior to the coast.

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Formations végétales et sols dans les mangroves des Rivières du Sud

Cited by 2 publications

References 0 publications

Mangrove zonation mapping in West Africa, at 10-m resolution, optimized for inter-annual monitoring

Mangrove zonation mapping in West Africa, at 10-m resolution, optimized for inter-annual monitoring

UNTANGLING THE MANY ROOTS OF WEST AFRICAN MANGROVE RICE FARMING: RICE TECHNOLOGY IN THE RIO NUNEZ REGION, EARLIEST TIMES TO c. 1800

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