Variabilité hydrologique et vulnérabilité des populations du Lago Janauaca (Amazonas, Brésil)

Closely related to the seasonal flood pulse of the Amazon River, the activities of várzeas farmers and fishermen are particularly sensitive to the critical events of hydrological variability. This paper analyzes the vulnerability of riverine communities to extreme high and low waters around the Lago...

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Main Authors: Guillaume Drapeau, Catherine Mering, Josyane Ronchail, Naziano Filizola
Format: Article
Language:English
Published: Confins 2011-03-01
Series:Confins
Subjects:
Online Access:https://journals.openedition.org/confins/6904
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author Guillaume Drapeau
Catherine Mering
Josyane Ronchail
Naziano Filizola
author_facet Guillaume Drapeau
Catherine Mering
Josyane Ronchail
Naziano Filizola
author_sort Guillaume Drapeau
collection DOAJ
description Closely related to the seasonal flood pulse of the Amazon River, the activities of várzeas farmers and fishermen are particularly sensitive to the critical events of hydrological variability. This paper analyzes the vulnerability of riverine communities to extreme high and low waters around the Lago Janauaca near Manaus, in a context of intensification of the hydrological cycle. We shall first try to characterize the hydrological variability of Rio Solimões and its spatial impact on the Lago. Important though is the extension of the natural phenomenon, human dynamics on the banks of the lake must be also taken into consideration. Such dynamics are due to the opening of dirt roads linking the lake to the BR319, rather than to the moderate expansion of traditional crops. Finally, interviews with inhabitants reveal a complex relationship between the various activities and hydrological extremes. Droughts appear to be the major disturbances, not only because of their impact on crops, but mostly because of the difficulties they imply for local and regional mobilities.
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spelling doaj-art-98e4329cc45d4fbe918064b55fa1b8f22025-01-13T15:51:52ZengConfinsConfins1958-92122011-03-011110.4000/confins.6904Variabilité hydrologique et vulnérabilité des populations du Lago Janauaca (Amazonas, Brésil)Guillaume DrapeauCatherine MeringJosyane RonchailNaziano FilizolaClosely related to the seasonal flood pulse of the Amazon River, the activities of várzeas farmers and fishermen are particularly sensitive to the critical events of hydrological variability. This paper analyzes the vulnerability of riverine communities to extreme high and low waters around the Lago Janauaca near Manaus, in a context of intensification of the hydrological cycle. We shall first try to characterize the hydrological variability of Rio Solimões and its spatial impact on the Lago. Important though is the extension of the natural phenomenon, human dynamics on the banks of the lake must be also taken into consideration. Such dynamics are due to the opening of dirt roads linking the lake to the BR319, rather than to the moderate expansion of traditional crops. Finally, interviews with inhabitants reveal a complex relationship between the various activities and hydrological extremes. Droughts appear to be the major disturbances, not only because of their impact on crops, but mostly because of the difficulties they imply for local and regional mobilities.https://journals.openedition.org/confins/6904Amazonvárzeaflooddroughtvulnerability
spellingShingle Guillaume Drapeau
Catherine Mering
Josyane Ronchail
Naziano Filizola
Variabilité hydrologique et vulnérabilité des populations du Lago Janauaca (Amazonas, Brésil)
Confins
Amazon
várzea
flood
drought
vulnerability
title Variabilité hydrologique et vulnérabilité des populations du Lago Janauaca (Amazonas, Brésil)
title_full Variabilité hydrologique et vulnérabilité des populations du Lago Janauaca (Amazonas, Brésil)
title_fullStr Variabilité hydrologique et vulnérabilité des populations du Lago Janauaca (Amazonas, Brésil)
title_full_unstemmed Variabilité hydrologique et vulnérabilité des populations du Lago Janauaca (Amazonas, Brésil)
title_short Variabilité hydrologique et vulnérabilité des populations du Lago Janauaca (Amazonas, Brésil)
title_sort variabilite hydrologique et vulnerabilite des populations du lago janauaca amazonas bresil
topic Amazon
várzea
flood
drought
vulnerability
url https://journals.openedition.org/confins/6904
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AT josyaneronchail variabilitehydrologiqueetvulnerabilitedespopulationsdulagojanauacaamazonasbresil
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