Anne Rivière-Honegger | Centre National de la Recherche Scientifique / French National Centre for Scientific Research (original) (raw)

Uploads

Papers by Anne Rivière-Honegger

Geocarrefour, Mar 20, 2008

Biological Invasions, 2015

CITATIONS 0 READS 47 3 authors, including: Some of the authors of this publication are also worki... more CITATIONS 0 READS 47 3 authors, including: Some of the authors of this publication are also working on these related projects: Instream wood and hazard management View project Micromegas project View project Marylise Cottet

La gestion intégrée de l’eau et des milieux aquatiques conduit à porter une attention particulièr... more La gestion intégrée de l’eau et des milieux aquatiques conduit à porter une attention particulière aux perceptions et aux représentations qu’en ont les différents acteurs (gestionnaires, élus, usagers, public, etc.). Il faut dès lors s’interroger sur l’intérêt et la manière de les mobiliser dans les démarches opérationnelles de gestion. Comment mobiliser les études de perceptions et de représentations pour identifier les acteurs et leurs attentes ? Comment les utiliser pour connaître l’histoire des relations entre les sociétés et les milieux aquatiques ? Comment les solliciter pour évaluer et interroger les pratiques de gestion ? Cet ouvrage de la collection Comprendre pour agir, illustré d’études de cas, d’encarts notionnels et méthodologiques et de retours d’expériences, délivre les résultats d’une réflexion collective, entre scientifiques et gestionnaires, organisée autour des différentes étapes de l’élaboration d’un projet de gestion.

Norois, 2010

Mieux comprendre la perception des paysages de bras morts en vue d'une restauration écologique : ... more Mieux comprendre la perception des paysages de bras morts en vue d'une restauration écologique : quels sont les liens entre les qualités esthétique et écologique perçues par les acteurs ? Better understanding perception of floodplain lakes landscapes for an ecological restoration: what are the links between aesthetical and ecological qualities? Marylise Cottet, Anne Rivière-Honegger et Hervé Piegay Édition électronique URL : http://norois.revues.org/3408 Référence électronique Marylise Cottet, Anne Rivière-Honegger et Hervé Piegay, « Mieux comprendre la perception des paysages de bras morts en vue d'une restauration écologique : quels sont les liens entre les qualités esthétique et écologique perçues par les acteurs ? », Norois [En ligne], 216 | 2010/3, mis en ligne le 01 décembre 2012, consulté le 30 septembre 2016. URL : http://norois.revues.org/3408 ; DOI : 10.4000/ norois.3408 Ce document est un fac-similé de l'édition imprimée. © Tous droits réservés Norois, n° 216, 2010/3, p. 85-103 Mieux comprendre la perception des paysages de bras morts en vue d'une restauration écologique : quels sont les liens entre les qualités esthétique et écologique perçues par les acteurs ?

ABSTRACT Background/Question/Methods Floodplain lakes are specific features with a particular hyd... more ABSTRACT Background/Question/Methods Floodplain lakes are specific features with a particular hydro-sedimentary functioning and ecological assemblages. They are considered by scientists, managers and decision-makers as unique environments within the temperate zone, possessing both high ecological and socio-economic values (biodiversity and refuge for fauna, flood attenuation, pollution buffering, providing recreational and educational opportunities). At river reach or site scale management practices (including rehabilitation) typically focus on one physical or human constraint yet they should be integrated as synergistic way to assess management efficiency. Using several examples from the Rhône watershed (Ain and Rhône Rivers, SE, France) we aim to illustrate how to combine socio-economical and eco-morphological objectives in floodplain lake management to implement sustainable practices. Results/Conclusions On the Ain River, European LIFE program (i.e. a financial instrument supporting environmental conservation projects in Europe) successfully combined a floodplain lake and main channel rehabilitation project by excavating coarse sediments from infilled floodplain lakes and injecting in the main channel to prevent channel degradation, floodplain forest homogenization and to rehabilitate fish habitat. This project was a win-win outcome. The injection of locally derived sediment was economical and the floodplain beta diversity being improved by aquatic species recolonization in excavated lakes. However, when too many issues overlay or interact over a small area, management becomes difficult to promote actions that reconcile each of them. For example, along the lower reach of the Rhône River, a project was initiated to integrate eco-geomorphic rehabilitation and flood risk management. The idea is to enhance sediment reworking both for enlarging the flow capacity of the river during floods and for allowing new sediment depositions at low elevations for pioneer species conservation. However, this project was confounded by concurrent constraints such as increased bank erosion risk near cultivated areas, navigation and polluted sediment reintroduction. In such context, a scientific understanding should be hierarchally organized to achieve certain pragmatic objectives rather than try to reach a past reference condition. For this purpose, both societal wishes and potential functioning of targeted systems should be integrated. Societal wishes result from a complex combination of several aspects, such as risk management, to link lake rehabilitation but also public opinion about these environmental features. We also present results concerning how these lakes are perceived by the society and which kind of visual properties are positively evaluated. Lastly we discussed how potential functioning can be approached (or not) by historical and regional analyses.

Journal of Environmental Management, 2013

Over the past century, the ecologically-diverse, braided Magra River in Italy has narrowed, incis... more Over the past century, the ecologically-diverse, braided Magra River in Italy has narrowed, incised, and lost many gravel bars due to the riparian vegetation encroachment following the decrease in bedload supply and channel degradation. Motivated by the European Water Framework Directive, river scientists and managers are beginning to plan projects to conserve and restore these dynamic mosaics of rare habitats and processes. To support this objective, a study was conducted to assess how braided rivers are perceived by different social groups in the area. In June, 2006, 127 people were surveyed using a photo-questionnaire consisting of ten photographs that depicted riverscapes with different proportions of water, vegetation, and bed material. Respondents were asked to score each photograph in terms of aesthetic value, beneficial uses, and river management needs. Results showed that the photographs depicting gravel bars were perceived as less aesthetically pleasing, so therefore they need an active management. However, these perceptions differed amongst groups of participants, reflecting their interests and objectives. This paper identifies a distance between scientific and popular attitudes and discusses implications for public participation, support for braided river restoration policy, and environmental education.

Geocarrefour, Mar 20, 2008

Biological Invasions, 2015

CITATIONS 0 READS 47 3 authors, including: Some of the authors of this publication are also worki... more CITATIONS 0 READS 47 3 authors, including: Some of the authors of this publication are also working on these related projects: Instream wood and hazard management View project Micromegas project View project Marylise Cottet

La gestion intégrée de l’eau et des milieux aquatiques conduit à porter une attention particulièr... more La gestion intégrée de l’eau et des milieux aquatiques conduit à porter une attention particulière aux perceptions et aux représentations qu’en ont les différents acteurs (gestionnaires, élus, usagers, public, etc.). Il faut dès lors s’interroger sur l’intérêt et la manière de les mobiliser dans les démarches opérationnelles de gestion. Comment mobiliser les études de perceptions et de représentations pour identifier les acteurs et leurs attentes ? Comment les utiliser pour connaître l’histoire des relations entre les sociétés et les milieux aquatiques ? Comment les solliciter pour évaluer et interroger les pratiques de gestion ? Cet ouvrage de la collection Comprendre pour agir, illustré d’études de cas, d’encarts notionnels et méthodologiques et de retours d’expériences, délivre les résultats d’une réflexion collective, entre scientifiques et gestionnaires, organisée autour des différentes étapes de l’élaboration d’un projet de gestion.

Norois, 2010

Mieux comprendre la perception des paysages de bras morts en vue d'une restauration écologique : ... more Mieux comprendre la perception des paysages de bras morts en vue d'une restauration écologique : quels sont les liens entre les qualités esthétique et écologique perçues par les acteurs ? Better understanding perception of floodplain lakes landscapes for an ecological restoration: what are the links between aesthetical and ecological qualities? Marylise Cottet, Anne Rivière-Honegger et Hervé Piegay Édition électronique URL : http://norois.revues.org/3408 Référence électronique Marylise Cottet, Anne Rivière-Honegger et Hervé Piegay, « Mieux comprendre la perception des paysages de bras morts en vue d'une restauration écologique : quels sont les liens entre les qualités esthétique et écologique perçues par les acteurs ? », Norois [En ligne], 216 | 2010/3, mis en ligne le 01 décembre 2012, consulté le 30 septembre 2016. URL : http://norois.revues.org/3408 ; DOI : 10.4000/ norois.3408 Ce document est un fac-similé de l'édition imprimée. © Tous droits réservés Norois, n° 216, 2010/3, p. 85-103 Mieux comprendre la perception des paysages de bras morts en vue d'une restauration écologique : quels sont les liens entre les qualités esthétique et écologique perçues par les acteurs ?

ABSTRACT Background/Question/Methods Floodplain lakes are specific features with a particular hyd... more ABSTRACT Background/Question/Methods Floodplain lakes are specific features with a particular hydro-sedimentary functioning and ecological assemblages. They are considered by scientists, managers and decision-makers as unique environments within the temperate zone, possessing both high ecological and socio-economic values (biodiversity and refuge for fauna, flood attenuation, pollution buffering, providing recreational and educational opportunities). At river reach or site scale management practices (including rehabilitation) typically focus on one physical or human constraint yet they should be integrated as synergistic way to assess management efficiency. Using several examples from the Rhône watershed (Ain and Rhône Rivers, SE, France) we aim to illustrate how to combine socio-economical and eco-morphological objectives in floodplain lake management to implement sustainable practices. Results/Conclusions On the Ain River, European LIFE program (i.e. a financial instrument supporting environmental conservation projects in Europe) successfully combined a floodplain lake and main channel rehabilitation project by excavating coarse sediments from infilled floodplain lakes and injecting in the main channel to prevent channel degradation, floodplain forest homogenization and to rehabilitate fish habitat. This project was a win-win outcome. The injection of locally derived sediment was economical and the floodplain beta diversity being improved by aquatic species recolonization in excavated lakes. However, when too many issues overlay or interact over a small area, management becomes difficult to promote actions that reconcile each of them. For example, along the lower reach of the Rhône River, a project was initiated to integrate eco-geomorphic rehabilitation and flood risk management. The idea is to enhance sediment reworking both for enlarging the flow capacity of the river during floods and for allowing new sediment depositions at low elevations for pioneer species conservation. However, this project was confounded by concurrent constraints such as increased bank erosion risk near cultivated areas, navigation and polluted sediment reintroduction. In such context, a scientific understanding should be hierarchally organized to achieve certain pragmatic objectives rather than try to reach a past reference condition. For this purpose, both societal wishes and potential functioning of targeted systems should be integrated. Societal wishes result from a complex combination of several aspects, such as risk management, to link lake rehabilitation but also public opinion about these environmental features. We also present results concerning how these lakes are perceived by the society and which kind of visual properties are positively evaluated. Lastly we discussed how potential functioning can be approached (or not) by historical and regional analyses.

Journal of Environmental Management, 2013

Over the past century, the ecologically-diverse, braided Magra River in Italy has narrowed, incis... more Over the past century, the ecologically-diverse, braided Magra River in Italy has narrowed, incised, and lost many gravel bars due to the riparian vegetation encroachment following the decrease in bedload supply and channel degradation. Motivated by the European Water Framework Directive, river scientists and managers are beginning to plan projects to conserve and restore these dynamic mosaics of rare habitats and processes. To support this objective, a study was conducted to assess how braided rivers are perceived by different social groups in the area. In June, 2006, 127 people were surveyed using a photo-questionnaire consisting of ten photographs that depicted riverscapes with different proportions of water, vegetation, and bed material. Respondents were asked to score each photograph in terms of aesthetic value, beneficial uses, and river management needs. Results showed that the photographs depicting gravel bars were perceived as less aesthetically pleasing, so therefore they need an active management. However, these perceptions differed amongst groups of participants, reflecting their interests and objectives. This paper identifies a distance between scientific and popular attitudes and discusses implications for public participation, support for braided river restoration policy, and environmental education.