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Is an ecologization of the territory without actors and territory possible? The case of La Bassée floodplain Silvia Bruzzone José-Frédéric Déroubaix LEESU-ENPC.

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Presentation on theme: "Is an ecologization of the territory without actors and territory possible? The case of La Bassée floodplain Silvia Bruzzone José-Frédéric Déroubaix LEESU-ENPC."— Presentation transcript:

1 Is an ecologization of the territory without actors and territory possible? The case of La Bassée floodplain Silvia Bruzzone José-Frédéric Déroubaix LEESU-ENPC Crisan, 20 – 21 april 2013

2 Ecological restoration and ecological flooding Ecological restoration of rivers and dynamic management of the floods are historically linkedEcological restoration of rivers and dynamic management of the floods are historically linked  Integration of the environmental NGO’s in the public policies conducted by the Ministry of Environment since the seventies (Lascoumes, Le Bourhis, 1997)  Ecology as the dominant expertise in the elaboration of a regulatory framework (WFD and Flood Directive) (Stayeart, Ollivier, 2007)

3 Ecological restoration, what are we talking about? Typology of de restoration projects (IWRM-Net Forecaster, 2009)

4 The political unfeasibility of an ecological flooding project ? The project of ecological flooding in the La Bassée floodplain Main actor of the flood management in the Seine River Basin : EPTB (Etablissement Public Territorial de Bassin) Seine Grands Lacs as contracting authority The La Bassée floodplain project 2 objectives: 1. hydraulic: to reduce the risk of flooding in Paris (combination of the Seine River and the Yonne River overflows) 2. rehabilitation of the ecological environment in the floodplain (500 hectares)

5 The Seine river basin and its flood defenses Source: EPTB SGL

6 “Restore and maintain the La Bassée ecosystems characterised by their recurrent submersions” Reduce the flood probability by slowing down the overflow with retention basins

7 What is this project about? The construction of water retention basins Source: EPTB SGL Particularity of the site and challenge of the project: the flood plain is flat and the water has to be pumped (in and out)

8 Current uses and environmental protection 250 ha are strictly protected (ZPS) and 830 ha are included in a Natura 2000 area 70 % is private estate 555 owners The biggest owners are gravel producers. 30 % is public estate, 18 owners (municipalities + Water Authority

9 Some figures 2300 hectares for stocking water2300 hectares for stocking water stockable volumes of water: 55 millions m3stockable volumes of water: 55 millions m3 58km of low embankments to be used for different uses58km of low embankments to be used for different uses Cost: 500 M€Cost: 500 M€ Reduction of the vulnerability of the Greater Paris: 15 cm in the centre of Paris for a 100 year return period eventReduction of the vulnerability of the Greater Paris: 15 cm in the centre of Paris for a 100 year return period event Operational:Operational: –15 days every 5 years to prevent flooding –every spring for the renaturation of humid zones (ecological management)

10 Public Debate: to inform the public and to increase the political support November 2011- February 2012November 2011- February 2012 14 thematic meetings in different towns concerned by the project14 thematic meetings in different towns concerned by the project main topics: environment, expertise, agriculture, economic development, etc.main topics: environment, expertise, agriculture, economic development, etc. BUT the way the debate has been held failed to obtain local supportBUT the way the debate has been held failed to obtain local support  Lack of support from the environmental protection associations  Opposition of the landowners and the local elected representatives  Controversial costs/benefits analysis (in comparison to other planning projects such as fluvial transportation)

11 Difficulty to build a political support Weak mimetism: lack of comparable experiences (the Rhine Valley, Parc Naturel Regional Foret d’Orient, etc.)Weak mimetism: lack of comparable experiences (the Rhine Valley, Parc Naturel Regional Foret d’Orient, etc.) A project which comes out of the blue!A project which comes out of the blue! No trace of previous negotiations (1990-2001: preliminary studies and negotiations with local stakeholders) Very low integration in the local context: lack of proposals for agricultural, touristic, economic development, etc.Very low integration in the local context: lack of proposals for agricultural, touristic, economic development, etc. Absence of local stakeholders who could represent the territorial assets and negotiate a sharing of environmental resources (water, biodiversity, land and landscape, gravel, shale gas, etc)Absence of local stakeholders who could represent the territorial assets and negotiate a sharing of environmental resources (water, biodiversity, land and landscape, gravel, shale gas, etc)

12 A “technical project” without story, territory and actors Gap between a technical solution and its political and social feasibility Gap between a technical solution and its political and social feasibility A project which is not understood and imagined in the local contextA project which is not understood and imagined in the local context ► Ecological flooding requires the elaboration of local practices embedded in a territorial (institutional) framework

13 « Ecological flooding » requires: Collective action (representatives, procedure(s) of coordination)Collective action (representatives, procedure(s) of coordination) Fabrication of a heritage (invention of new environmental practices)Fabrication of a heritage (invention of new environmental practices) Ecological flooding has nothing to do with restoration and the search of a previous “natural” system.Ecological flooding has nothing to do with restoration and the search of a previous “natural” system.

14 Thank you for your attention ! Thank you for your attention !

15 Zones Protégées Une ZPS de 250 haUne ZPS de 250 ha Une zone de 830 ha faisant partie de projet européen Natura 2000 composée de:Une zone de 830 ha faisant partie de projet européen Natura 2000 composée de: –Eaux douces intérieures 20 % –Eaux douces intérieures 20 % –Cultures céréalières extensives 20 % –Cultures céréalières extensives 20 % –Forêts caducifoliées 20 % –Forêts caducifoliées 20 % –Forêts mixtes 20 % –Forêts mixtes 20 % –Forêts artificielles en monoculture 10 % –Forêts artificielles en monoculture 10 % –Autres terres (incluant les Zones urbanisées et industrielles, Routes, Décharges, Mines) 5 % –Autres terres (incluant les Zones urbanisées et industrielles, Routes, Décharges, Mines) 5 %


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