Ecohydrologie urbaine et changement climatique

<p>Due to global change, cities of the future will have to deal with more intense runoff and longer drought sequences, in addition to a growing urban and peri-urban population. French Mediterranean cities, such as Toulon, are already densely urbanised and exposed to the effects of global warmi...

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Autores principales:	P. Breil, A. Faty, D. Orange
Formato:	article
Lenguaje:	EN
Publicado:	Copernicus Publications 2021
Materias:	Environmental sciences GE1-350 Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/e8fa6eb391f446ffb8e58d996f9924c7
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id	oai:doaj.org-article:e8fa6eb391f446ffb8e58d996f9924c7
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spelling	oai:doaj.org-article:e8fa6eb391f446ffb8e58d996f9924c72021-11-16T07:27:13ZEcohydrologie urbaine et changement climatique10.5194/piahs-384-331-20212199-89812199-899Xhttps://doaj.org/article/e8fa6eb391f446ffb8e58d996f9924c72021-11-01T00:00:00Zhttps://piahs.copernicus.org/articles/384/331/2021/piahs-384-331-2021.pdfhttps://doaj.org/toc/2199-8981https://doaj.org/toc/2199-899X<p>Due to global change, cities of the future will have to deal with more intense runoff and longer drought sequences, in addition to a growing urban and peri-urban population. French Mediterranean cities, such as Toulon, are already densely urbanised and exposed to the effects of global warming. The adaptation of their infrastructures is problematic. Cities with high development potential, such as Dakar, offer the opportunity to imagine other solutions for the management of water resources and its extremes in the context of global change. In particular, it is a question of managing the flows of water and substances linked to intense runoff events according to an ecohydrological logic that makes it possible to reduce environmental risks and increase social and economic benefits. To do this, we use a hydrologically-based geomatics model (IRIP) that produces predictive maps of areas of generation, transfer and accumulation of intense runoff and associated nutrients. This allows us to target effective intervention areas to reduce risks and increase water resources, for example by simulating land use change in appropriate locations and at the same time stimulating specific biological processes. The fundamental principle of ecohydrology is to balance energy flows with biological metabolic flows at the sub-catchment scale. The mapping of intense runoff processes is a first step illustrated in this article for the cities of Toulon and Dakar. This first step is part of the Dakar'2030 project, which aims to rethink urban development and adapt it to climate change.</p>P. BreilA. FatyD. OrangeCopernicus PublicationsarticleEnvironmental sciencesGE1-350GeologyQE1-996.5ENProceedings of the International Association of Hydrological Sciences, Vol 384, Pp 331-336 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental sciences GE1-350 Geology QE1-996.5
spellingShingle	Environmental sciences GE1-350 Geology QE1-996.5 P. Breil A. Faty D. Orange Ecohydrologie urbaine et changement climatique
description	<p>Due to global change, cities of the future will have to deal with more intense runoff and longer drought sequences, in addition to a growing urban and peri-urban population. French Mediterranean cities, such as Toulon, are already densely urbanised and exposed to the effects of global warming. The adaptation of their infrastructures is problematic. Cities with high development potential, such as Dakar, offer the opportunity to imagine other solutions for the management of water resources and its extremes in the context of global change. In particular, it is a question of managing the flows of water and substances linked to intense runoff events according to an ecohydrological logic that makes it possible to reduce environmental risks and increase social and economic benefits. To do this, we use a hydrologically-based geomatics model (IRIP) that produces predictive maps of areas of generation, transfer and accumulation of intense runoff and associated nutrients. This allows us to target effective intervention areas to reduce risks and increase water resources, for example by simulating land use change in appropriate locations and at the same time stimulating specific biological processes. The fundamental principle of ecohydrology is to balance energy flows with biological metabolic flows at the sub-catchment scale. The mapping of intense runoff processes is a first step illustrated in this article for the cities of Toulon and Dakar. This first step is part of the Dakar'2030 project, which aims to rethink urban development and adapt it to climate change.</p>
format	article
author	P. Breil A. Faty D. Orange
author_facet	P. Breil A. Faty D. Orange
author_sort	P. Breil
title	Ecohydrologie urbaine et changement climatique
title_short	Ecohydrologie urbaine et changement climatique
title_full	Ecohydrologie urbaine et changement climatique
title_fullStr	Ecohydrologie urbaine et changement climatique
title_full_unstemmed	Ecohydrologie urbaine et changement climatique
title_sort	ecohydrologie urbaine et changement climatique
publisher	Copernicus Publications
publishDate	2021
url	https://doaj.org/article/e8fa6eb391f446ffb8e58d996f9924c7
work_keys_str_mv	AT pbreil ecohydrologieurbaineetchangementclimatique AT afaty ecohydrologieurbaineetchangementclimatique AT dorange ecohydrologieurbaineetchangementclimatique
_version_	1718426640156983296

Ecohydrologie urbaine et changement climatique

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