2021
Conferences
1.
Rizzo, Davide; Marraccini, Elisa
Research topics in crop diversification research at the landscape level: early evidence from a text mining approach Conference
Landscape 2021 - Diversity for Sustainable and Resilient Agriculture, Berlin, Germany, 2021.
@conference{Rizzo2021,
title = {Research topics in crop diversification research at the landscape level: early evidence from a text mining approach},
author = {Davide Rizzo and Elisa Marraccini},
url = {https://hal.archives-ouvertes.fr/hal-03255023},
year = {2021},
date = {2021-09-20},
urldate = {2021-09-20},
booktitle = {Landscape 2021 - Diversity for Sustainable and Resilient Agriculture},
address = {Berlin, Germany},
abstract = {Crop diversification has many benefits both at the cropping system and the food system levels and has been addressed in agricultural research (Hufnagel et al., 2020). Landscape design and management in agricultural regions can support crop diversification by building bridges with scientific domains like ecology and geography (Benoit et al., 2012). Though, little is known on how the research community has addressed the crop diversification within a landscape perspective. In this paper we investigated a bibliographic corpus retrieved from the Scopus database papers coupling crop diversification and landscape (in title, abstract and keywords), retrieving 461 papers for the period 1990 to 2020. The corpus was analysed using the CorText platform (e.g., Ruiz-Martinez et al., 2015). First, natural language processing was used to extract multi-terms from title, abstract and keywords. Then, we mined the temporal dynamics and co-occurrence of the 100 most frequent terms. Our findings showed that species richness emerges as the main topic in this corpus, and that natural enemies, crop types and natural control increased in importance. In the last years, genetic diversity, climate change and agricultural production also gained attention. On the contrary, land use and some of the terms related to diversity (landscape, plant and farmland) were marginal or decreasing. By analysing the terms co-occurrence on the three decades, we observed that the papers addressing crop varieties and agroforestry system split into two streams: one about agricultural production in relation to climate change and the other about farm size and land use. Instead, the functional diversity and field margin disappeared from the recent literature. Land use patterns and landscape diversity converged mainly on studies about biological pest control. Altogether, the corpus highlighted that the spatial configuration lost in importance when addressing crop diversification. In addition, the species diversity gained in attention finally catching a large part of the literature in the corpus. From a landscape approach perspective, we might point out the apparent lack of a major topic: the involvement of local community and stakeholders. Our simple and rapid text mining approach yielded early evidence of knowledge gaps about the landscape level in crop diversification literature. The expected contribution of approaching the crop diversification at the landscape level would be to provide a relevant framework for the characterisation of the baseline system to be diversified. In particular, the landscape agronomy perspective stressed the need to define the scale and target area for crop diversification consistently with (natural and cultivated) species diversity embedded in a local socio-technical system. References Hufnagel, J., Reckling, M., & Ewert, F. (2020). Diverse approaches to crop diversification in agricultural research. A review. Agronomy for Sustainable Development, 40(2), 1-17. Ruiz-Martinez, I., Marraccini, E., Debolini, M., & Bonari, E. (2015). Indicators of agricultural intensity and intensification: a review of the literature. Italian Journal of Agronomy, 10(2), 74-84. Benoît, M., Rizzo, D., Marraccini, E., Moonen, A. C., Galli, M., Lardon, S., ... & Bonari, E. (2012). Landscape agronomy: a new field for addressing agricultural landscape dynamics. Landscape ecology, 27(10), 1385-1394. },
keywords = {},
pubstate = {published},
tppubtype = {conference}
}
Crop diversification has many benefits both at the cropping system and the food system levels and has been addressed in agricultural research (Hufnagel et al., 2020). Landscape design and management in agricultural regions can support crop diversification by building bridges with scientific domains like ecology and geography (Benoit et al., 2012). Though, little is known on how the research community has addressed the crop diversification within a landscape perspective. In this paper we investigated a bibliographic corpus retrieved from the Scopus database papers coupling crop diversification and landscape (in title, abstract and keywords), retrieving 461 papers for the period 1990 to 2020. The corpus was analysed using the CorText platform (e.g., Ruiz-Martinez et al., 2015). First, natural language processing was used to extract multi-terms from title, abstract and keywords. Then, we mined the temporal dynamics and co-occurrence of the 100 most frequent terms. Our findings showed that species richness emerges as the main topic in this corpus, and that natural enemies, crop types and natural control increased in importance. In the last years, genetic diversity, climate change and agricultural production also gained attention. On the contrary, land use and some of the terms related to diversity (landscape, plant and farmland) were marginal or decreasing. By analysing the terms co-occurrence on the three decades, we observed that the papers addressing crop varieties and agroforestry system split into two streams: one about agricultural production in relation to climate change and the other about farm size and land use. Instead, the functional diversity and field margin disappeared from the recent literature. Land use patterns and landscape diversity converged mainly on studies about biological pest control. Altogether, the corpus highlighted that the spatial configuration lost in importance when addressing crop diversification. In addition, the species diversity gained in attention finally catching a large part of the literature in the corpus. From a landscape approach perspective, we might point out the apparent lack of a major topic: the involvement of local community and stakeholders. Our simple and rapid text mining approach yielded early evidence of knowledge gaps about the landscape level in crop diversification literature. The expected contribution of approaching the crop diversification at the landscape level would be to provide a relevant framework for the characterisation of the baseline system to be diversified. In particular, the landscape agronomy perspective stressed the need to define the scale and target area for crop diversification consistently with (natural and cultivated) species diversity embedded in a local socio-technical system. References Hufnagel, J., Reckling, M., & Ewert, F. (2020). Diverse approaches to crop diversification in agricultural research. A review. Agronomy for Sustainable Development, 40(2), 1-17. Ruiz-Martinez, I., Marraccini, E., Debolini, M., & Bonari, E. (2015). Indicators of agricultural intensity and intensification: a review of the literature. Italian Journal of Agronomy, 10(2), 74-84. Benoît, M., Rizzo, D., Marraccini, E., Moonen, A. C., Galli, M., Lardon, S., ... & Bonari, E. (2012). Landscape agronomy: a new field for addressing agricultural landscape dynamics. Landscape ecology, 27(10), 1385-1394.
2019
Journal Articles
2.
Loconto, Allison; Desquilbet, Marion; Moreau, Théo; Couvet, Denis; Dorin, Bruno
The land sparing – land sharing controversy: Tracing the politics of knowledge Journal Article
In: Land Use Policy, vol. 96, 2019.
@article{Loconto2018,
title = {The land sparing – land sharing controversy: Tracing the politics of knowledge},
author = {Allison Loconto and Marion Desquilbet and Théo Moreau and Denis Couvet and Bruno Dorin},
url = {https://doi.org/10.1016/j.landusepol.2018.09.014},
doi = {10.1016/j.landusepol.2018.09.014},
year = {2019},
date = {2019-01-01},
urldate = {2019-01-01},
journal = {Land Use Policy},
volume = {96},
abstract = {Feeding 9 billion people by 2050 on one hand, and preserving biodiversity on the other hand, are two shared policy goals at the global level. Yet while these goals are clear, they are to some extent in conflict, because agriculture is a major cause of biodiversity loss, and the path to achieve both of them is at the heart of a public controversy around ‘productive’ land use and biodiversity conservation. Over the years, the scientific, policy, civil society and agri-business communities have been engaged in producing evidence that can support a land sparing policy (separating intensive agricultural production from biodiversity conservation) or a land sharing policy (integrating the two in larger and more extensive landscapes). This paper contributes to this debate by analyzing land sparing and land sharing (LSS) as a socio-technical controversy. Through the analysis of large and small corpora of scientific, policy, corporate social responsibility and sustainability standards documents we explore the ethical underpinnings and social networks that support the opposing sides of this controversy. We explore these linkages in order to explain how the concept of land sparing achieved dominance in the scientific literature and how the concept has been taken up in international policy, business and civil society circles. We examine the convergences and divergences in alliances between actors in this controversy in order to map how specific actors have promoted the concept of land sparing as the best way to used land for biodiversity and food production.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Feeding 9 billion people by 2050 on one hand, and preserving biodiversity on the other hand, are two shared policy goals at the global level. Yet while these goals are clear, they are to some extent in conflict, because agriculture is a major cause of biodiversity loss, and the path to achieve both of them is at the heart of a public controversy around ‘productive’ land use and biodiversity conservation. Over the years, the scientific, policy, civil society and agri-business communities have been engaged in producing evidence that can support a land sparing policy (separating intensive agricultural production from biodiversity conservation) or a land sharing policy (integrating the two in larger and more extensive landscapes). This paper contributes to this debate by analyzing land sparing and land sharing (LSS) as a socio-technical controversy. Through the analysis of large and small corpora of scientific, policy, corporate social responsibility and sustainability standards documents we explore the ethical underpinnings and social networks that support the opposing sides of this controversy. We explore these linkages in order to explain how the concept of land sparing achieved dominance in the scientific literature and how the concept has been taken up in international policy, business and civil society circles. We examine the convergences and divergences in alliances between actors in this controversy in order to map how specific actors have promoted the concept of land sparing as the best way to used land for biodiversity and food production.
PhD Theses
3.
Bareille, François
Gestion agricole des services écosystémiques : éclairages à partir de l’économie de la production et de l’économie de l’environnement PhD Thesis
2019, (HAL Id: tel-02140626).
@phdthesis{Bareille2019,
title = {Gestion agricole des services écosystémiques : éclairages à partir de l’économie de la production et de l’économie de l’environnement},
author = {François Bareille},
url = {https://theses.hal.science/tel-02140626v1},
year = {2019},
date = {2019-05-27},
abstract = {The thesis aims to study both theoretically and empirically the management of ecosystem services by the farmers from the perspective of the economic theory. The concept of ecosystem services is an interdisciplinary concept that refers to "the services that nature offers to human for free". The economic literature has mainly investigated this concept in measuring the value of these services, with few attention to the behavior of agents modifying these services. The thesis is divided into two parts.
In the first part, I study both the supply and the demand for the productive ecosystem services (for example, pollination or biological control) by analyzing the behavior of farmers, considered as potential agroecosystem managers. Inspired by the literature on landscape ecology, I introduce biodiversity indicators that are function of land-use into existing models from
agricultural production economics literature. This reunion provides a unified theoretical model for analyzing farmers' choices regarding the management of productive ecosystem services.
The empirical works consists in estimating all or parts of this theoretical model. My main contribution to the literature is to prove, based on the farmers' observed behavior, that farmers do manage productive ecosystem services. I bring other elements to the literature, notably by providing new insights on the agricultural technology when productive ecosystem services are considered, or by showing that collective management of productive ecosystem services can only rarely arise spontaneously in real landscapes where farmers are heterogeneous.
In the second part, I study the demand for the jointly provided public goods by the farmers’ modification of ecosystem service flows, i.e. I study the specificities of the demand for environmental services provided by farmers (in the sense of Engel et al., 2008). In particular, I study the role of the geographic scale of the demand for the design of agri-environmental policy. Indeed, if local public goods influence the welfare of the agents within a defined geographical
area (e.g., the improvement of water quality by maintaining a wetland upstream of a treatment plant), global public goods can influence the welfare of all agents (e.g., the carbon sequestration into the soil of a wetland). In this part, I apply the framework of several literatures developed in environmental economics (for example, the literature on environmental federalism or on the "distance-decay") to the specificities of the environmental services provided by farmers; in particular, I integrate that the environmental service provided by a farmer affects the supply of multiple public goods in most cases, the demand for these public goods arising at different geographical scales. I contribute to the literature by showing that, although most of the demand for environmental services provided by farmers is captured locally (at the municipal level), some of the demand is captured by larger and farer areas. This has implications for the governance and the design of agri-environmental policies, which I explore through two examples: the reduction of pesticide application and the maintenance of agricultural wetlands.
La thèse étudie théoriquement et empiriquement la gestion des services écosystémiques par les agriculteurs sous l’angle de la théorie économique. Le concept de services écosystémiques est un concept interdisciplinaire désignant « les services qu’offrent gratuitement la nature à l’homme ». La littérature économique s’est principalement emparée de la question de la mesure de la valeur de ces services, en s’intéressant peu ou prou aux comportements des agents
modifiant ces services. La thèse se divise en deux parties.
Dans la première partie, je m’intéresse à l’offre et à la demande de service écosystémique productifs (par exemple, la pollinisation ou le contrôle biologique) en analysant le comportement des agriculteurs, considérés comme de potentiels gestionnaires des agroécosystèmes. Inspiré par la littérature en écologie du paysage, j’introduis des indicateurs de biodiversité dépendant des assolements dans des modèles existants issus de la littérature en économie de la production appliquée à l’agriculture. Ce rapprochement fournit un modèle théorique unifié où l’on peut analyser les choix des agriculteurs vis-à-vis des services écosystémiques productifs. Les travaux empiriques développés par la suite consistent à estimer toute ou partie de ce modèle théorique. Ma principale contribution à la littérature est de prouver, à partir de l’analyse des comportements observés des agriculteurs, que les agriculteurs gèrent consciemment les services écosystémiques productifs. J’apporte d’autres éléments à la littérature, en fournissant notamment des éléments importants sur la technologie agricole lorsque les services écosystémiques productifs sont considérés, ou en montrant que la gestion collective des services écosystémiques productifs ne peut que rarement émergée spontanément
dans des paysages réels où les agriculteurs sont hétérogènes.
Dans la deuxième partie, je m’intéresse à la demande pour les biens publics fournis conjointement par les agriculteurs via la modification des flux de services écosystémiques, i.e. je m’intéresse à la demande pour les services environnementaux fournis par les agriculteurs (au sens de Engel et al., 2008). En particulier, j’étudie le rôle de l’échelle géographique de la demande sur la conception de politique agro-environnementale. En effet, si les biens publics locaux vont influencer le bien-être des agents au sein d’une zone géographique délimitée (e.g. amélioration de la qualité de l’eau en maintenant une zone humide en amont d’une station de traitement), les biens publics globaux peuvent influencer le bien-être de l’ensemble des agents (e.g. séquestration du carbone dans une zone humide). Dans cette partie, j’applique les cadres
d’analyse de plusieurs littératures développées en économie de l’environnement (par exemple, la littérature sur le fédéralisme environnemental ou sur le « distance-decay ») aux spécificités des services environnementaux fournis par l’agriculture ; en particulier, le service environnemental fourni par un agriculteur influe le plus souvent sur la fourniture de multiple biens publics, biens publics dont l’échelle de la demande diffèrent. Je contribue à la littérature en montrant que, bien que la plupart de la demande pour les services environnementaux fournis par les agriculteurs soit capturée localement (à l’échelle de la municipalité), une partie de la demande s’exprime à des échelles plus importantes. Cela a des implications pour la gouvernance et la conception des politiques agroenvironnementales, que j’explore à travers deux exemples : la réduction de l’application des pesticides et le maintien des zones humides agricoles.},
note = {HAL Id: tel-02140626},
keywords = {},
pubstate = {published},
tppubtype = {phdthesis}
}
The thesis aims to study both theoretically and empirically the management of ecosystem services by the farmers from the perspective of the economic theory. The concept of ecosystem services is an interdisciplinary concept that refers to "the services that nature offers to human for free". The economic literature has mainly investigated this concept in measuring the value of these services, with few attention to the behavior of agents modifying these services. The thesis is divided into two parts.
In the first part, I study both the supply and the demand for the productive ecosystem services (for example, pollination or biological control) by analyzing the behavior of farmers, considered as potential agroecosystem managers. Inspired by the literature on landscape ecology, I introduce biodiversity indicators that are function of land-use into existing models from
agricultural production economics literature. This reunion provides a unified theoretical model for analyzing farmers' choices regarding the management of productive ecosystem services.
The empirical works consists in estimating all or parts of this theoretical model. My main contribution to the literature is to prove, based on the farmers' observed behavior, that farmers do manage productive ecosystem services. I bring other elements to the literature, notably by providing new insights on the agricultural technology when productive ecosystem services are considered, or by showing that collective management of productive ecosystem services can only rarely arise spontaneously in real landscapes where farmers are heterogeneous.
In the second part, I study the demand for the jointly provided public goods by the farmers’ modification of ecosystem service flows, i.e. I study the specificities of the demand for environmental services provided by farmers (in the sense of Engel et al., 2008). In particular, I study the role of the geographic scale of the demand for the design of agri-environmental policy. Indeed, if local public goods influence the welfare of the agents within a defined geographical
area (e.g., the improvement of water quality by maintaining a wetland upstream of a treatment plant), global public goods can influence the welfare of all agents (e.g., the carbon sequestration into the soil of a wetland). In this part, I apply the framework of several literatures developed in environmental economics (for example, the literature on environmental federalism or on the "distance-decay") to the specificities of the environmental services provided by farmers; in particular, I integrate that the environmental service provided by a farmer affects the supply of multiple public goods in most cases, the demand for these public goods arising at different geographical scales. I contribute to the literature by showing that, although most of the demand for environmental services provided by farmers is captured locally (at the municipal level), some of the demand is captured by larger and farer areas. This has implications for the governance and the design of agri-environmental policies, which I explore through two examples: the reduction of pesticide application and the maintenance of agricultural wetlands.
La thèse étudie théoriquement et empiriquement la gestion des services écosystémiques par les agriculteurs sous l’angle de la théorie économique. Le concept de services écosystémiques est un concept interdisciplinaire désignant « les services qu’offrent gratuitement la nature à l’homme ». La littérature économique s’est principalement emparée de la question de la mesure de la valeur de ces services, en s’intéressant peu ou prou aux comportements des agents
modifiant ces services. La thèse se divise en deux parties.
Dans la première partie, je m’intéresse à l’offre et à la demande de service écosystémique productifs (par exemple, la pollinisation ou le contrôle biologique) en analysant le comportement des agriculteurs, considérés comme de potentiels gestionnaires des agroécosystèmes. Inspiré par la littérature en écologie du paysage, j’introduis des indicateurs de biodiversité dépendant des assolements dans des modèles existants issus de la littérature en économie de la production appliquée à l’agriculture. Ce rapprochement fournit un modèle théorique unifié où l’on peut analyser les choix des agriculteurs vis-à-vis des services écosystémiques productifs. Les travaux empiriques développés par la suite consistent à estimer toute ou partie de ce modèle théorique. Ma principale contribution à la littérature est de prouver, à partir de l’analyse des comportements observés des agriculteurs, que les agriculteurs gèrent consciemment les services écosystémiques productifs. J’apporte d’autres éléments à la littérature, en fournissant notamment des éléments importants sur la technologie agricole lorsque les services écosystémiques productifs sont considérés, ou en montrant que la gestion collective des services écosystémiques productifs ne peut que rarement émergée spontanément
dans des paysages réels où les agriculteurs sont hétérogènes.
Dans la deuxième partie, je m’intéresse à la demande pour les biens publics fournis conjointement par les agriculteurs via la modification des flux de services écosystémiques, i.e. je m’intéresse à la demande pour les services environnementaux fournis par les agriculteurs (au sens de Engel et al., 2008). En particulier, j’étudie le rôle de l’échelle géographique de la demande sur la conception de politique agro-environnementale. En effet, si les biens publics locaux vont influencer le bien-être des agents au sein d’une zone géographique délimitée (e.g. amélioration de la qualité de l’eau en maintenant une zone humide en amont d’une station de traitement), les biens publics globaux peuvent influencer le bien-être de l’ensemble des agents (e.g. séquestration du carbone dans une zone humide). Dans cette partie, j’applique les cadres
d’analyse de plusieurs littératures développées en économie de l’environnement (par exemple, la littérature sur le fédéralisme environnemental ou sur le « distance-decay ») aux spécificités des services environnementaux fournis par l’agriculture ; en particulier, le service environnemental fourni par un agriculteur influe le plus souvent sur la fourniture de multiple biens publics, biens publics dont l’échelle de la demande diffèrent. Je contribue à la littérature en montrant que, bien que la plupart de la demande pour les services environnementaux fournis par les agriculteurs soit capturée localement (à l’échelle de la municipalité), une partie de la demande s’exprime à des échelles plus importantes. Cela a des implications pour la gouvernance et la conception des politiques agroenvironnementales, que j’explore à travers deux exemples : la réduction de l’application des pesticides et le maintien des zones humides agricoles.
In the first part, I study both the supply and the demand for the productive ecosystem services (for example, pollination or biological control) by analyzing the behavior of farmers, considered as potential agroecosystem managers. Inspired by the literature on landscape ecology, I introduce biodiversity indicators that are function of land-use into existing models from
agricultural production economics literature. This reunion provides a unified theoretical model for analyzing farmers' choices regarding the management of productive ecosystem services.
The empirical works consists in estimating all or parts of this theoretical model. My main contribution to the literature is to prove, based on the farmers' observed behavior, that farmers do manage productive ecosystem services. I bring other elements to the literature, notably by providing new insights on the agricultural technology when productive ecosystem services are considered, or by showing that collective management of productive ecosystem services can only rarely arise spontaneously in real landscapes where farmers are heterogeneous.
In the second part, I study the demand for the jointly provided public goods by the farmers’ modification of ecosystem service flows, i.e. I study the specificities of the demand for environmental services provided by farmers (in the sense of Engel et al., 2008). In particular, I study the role of the geographic scale of the demand for the design of agri-environmental policy. Indeed, if local public goods influence the welfare of the agents within a defined geographical
area (e.g., the improvement of water quality by maintaining a wetland upstream of a treatment plant), global public goods can influence the welfare of all agents (e.g., the carbon sequestration into the soil of a wetland). In this part, I apply the framework of several literatures developed in environmental economics (for example, the literature on environmental federalism or on the "distance-decay") to the specificities of the environmental services provided by farmers; in particular, I integrate that the environmental service provided by a farmer affects the supply of multiple public goods in most cases, the demand for these public goods arising at different geographical scales. I contribute to the literature by showing that, although most of the demand for environmental services provided by farmers is captured locally (at the municipal level), some of the demand is captured by larger and farer areas. This has implications for the governance and the design of agri-environmental policies, which I explore through two examples: the reduction of pesticide application and the maintenance of agricultural wetlands.
La thèse étudie théoriquement et empiriquement la gestion des services écosystémiques par les agriculteurs sous l’angle de la théorie économique. Le concept de services écosystémiques est un concept interdisciplinaire désignant « les services qu’offrent gratuitement la nature à l’homme ». La littérature économique s’est principalement emparée de la question de la mesure de la valeur de ces services, en s’intéressant peu ou prou aux comportements des agents
modifiant ces services. La thèse se divise en deux parties.
Dans la première partie, je m’intéresse à l’offre et à la demande de service écosystémique productifs (par exemple, la pollinisation ou le contrôle biologique) en analysant le comportement des agriculteurs, considérés comme de potentiels gestionnaires des agroécosystèmes. Inspiré par la littérature en écologie du paysage, j’introduis des indicateurs de biodiversité dépendant des assolements dans des modèles existants issus de la littérature en économie de la production appliquée à l’agriculture. Ce rapprochement fournit un modèle théorique unifié où l’on peut analyser les choix des agriculteurs vis-à-vis des services écosystémiques productifs. Les travaux empiriques développés par la suite consistent à estimer toute ou partie de ce modèle théorique. Ma principale contribution à la littérature est de prouver, à partir de l’analyse des comportements observés des agriculteurs, que les agriculteurs gèrent consciemment les services écosystémiques productifs. J’apporte d’autres éléments à la littérature, en fournissant notamment des éléments importants sur la technologie agricole lorsque les services écosystémiques productifs sont considérés, ou en montrant que la gestion collective des services écosystémiques productifs ne peut que rarement émergée spontanément
dans des paysages réels où les agriculteurs sont hétérogènes.
Dans la deuxième partie, je m’intéresse à la demande pour les biens publics fournis conjointement par les agriculteurs via la modification des flux de services écosystémiques, i.e. je m’intéresse à la demande pour les services environnementaux fournis par les agriculteurs (au sens de Engel et al., 2008). En particulier, j’étudie le rôle de l’échelle géographique de la demande sur la conception de politique agro-environnementale. En effet, si les biens publics locaux vont influencer le bien-être des agents au sein d’une zone géographique délimitée (e.g. amélioration de la qualité de l’eau en maintenant une zone humide en amont d’une station de traitement), les biens publics globaux peuvent influencer le bien-être de l’ensemble des agents (e.g. séquestration du carbone dans une zone humide). Dans cette partie, j’applique les cadres
d’analyse de plusieurs littératures développées en économie de l’environnement (par exemple, la littérature sur le fédéralisme environnemental ou sur le « distance-decay ») aux spécificités des services environnementaux fournis par l’agriculture ; en particulier, le service environnemental fourni par un agriculteur influe le plus souvent sur la fourniture de multiple biens publics, biens publics dont l’échelle de la demande diffèrent. Je contribue à la littérature en montrant que, bien que la plupart de la demande pour les services environnementaux fournis par les agriculteurs soit capturée localement (à l’échelle de la municipalité), une partie de la demande s’exprime à des échelles plus importantes. Cela a des implications pour la gouvernance et la conception des politiques agroenvironnementales, que j’explore à travers deux exemples : la réduction de l’application des pesticides et le maintien des zones humides agricoles.
2018
PhD Theses
4.
Bareille, François
Agricultural management of ecosystem services: insights from production and environmental economics PhD Thesis
Université Bretagne Loire, 2018, (HAL Id : tel-02790452 , version 1).
@phdthesis{Bareille2018,
title = {Agricultural management of ecosystem services: insights from production and environmental economics},
author = {François Bareille},
url = {https://www.theses.fr/2018NSARE050.pdf},
year = {2018},
date = {2018-11-15},
urldate = {2018-11-15},
school = {Université Bretagne Loire},
abstract = {The thesis aims to study both theoretically and empirically the management of ecosystem services by the farmers from the perspective of the economic theory. The concept of ecosystem services is an interdisciplinary concept that refers to "the services that nature offers to human for free". The economic literature has mainly investigated this concept in measuring the value of these services, with few attention to the behavior of agents modifying these services. The thesis is divided into two parts. In the first part, I study both the supply and the demand for the productive ecosystem services (for example, pollination or biological control) by analyzing the behavior of farmers, considered as potential agroecosystem managers. Inspired by the literature on landscape ecology, I introduce biodiversity indicators that are function of land-use into existing models from agricultural production economics literature. This reunion provides a unified theoretical model for analyzing farmers' choices regarding the management of productive ecosystem services. The empirical works consists in estimating all or parts of this theoretical model. My main contribution to the literature is to prove, based on the farmers' observed behavior, that farmers do manage productive ecosystem services. I bring other elements to the literature, notably by providing new insights on the agricultural technology when productive ecosystem services are considered, or by showing that collective management of productive ecosystem services can only rarely arise spontaneously in real landscapes where farmers are heterogeneous. In the second part, I study the demand for the jointly provided public goods by the farmers’ modification of ecosystem service flows, i.e. I study the specificities of the demand for environmental services provided by farmers (in the sense of Engel et al., 2008). In particular, I study the role of the geographic scale of the demand for the design of agri-environmental policy. Indeed, if local public goods influence the welfare of the agents within a defined geographical area (e.g., the improvement of water quality by maintaining a wetland upstream of a treatment plant), global public goods can influence the welfare of all agents (e.g., the carbon sequestration into the soil of a wetland). In this part, I apply the framework of several literatures developed in environmental economics (for example, the literature on environmental federalism or on the "distance-decay") to the specificities of the environmental services provided by farmers; in particular, I integrate that the environmental service provided by a farmer affects the supply of multiple public goods in most cases, the demand for these public goods arising at different geographical scales. I contribute to the literature by showing that, although most of the demand for environmental services provided by farmers is captured locally (at the municipal level), some of the demand is captured by larger and farer areas. This has implications for the governance and the design of agri-environmental policies, which I explore through two examples: the reduction of pesticide application and the maintenance of agricultural wetlands.},
note = {HAL Id : tel-02790452 , version 1},
keywords = {},
pubstate = {published},
tppubtype = {phdthesis}
}
The thesis aims to study both theoretically and empirically the management of ecosystem services by the farmers from the perspective of the economic theory. The concept of ecosystem services is an interdisciplinary concept that refers to "the services that nature offers to human for free". The economic literature has mainly investigated this concept in measuring the value of these services, with few attention to the behavior of agents modifying these services. The thesis is divided into two parts. In the first part, I study both the supply and the demand for the productive ecosystem services (for example, pollination or biological control) by analyzing the behavior of farmers, considered as potential agroecosystem managers. Inspired by the literature on landscape ecology, I introduce biodiversity indicators that are function of land-use into existing models from agricultural production economics literature. This reunion provides a unified theoretical model for analyzing farmers' choices regarding the management of productive ecosystem services. The empirical works consists in estimating all or parts of this theoretical model. My main contribution to the literature is to prove, based on the farmers' observed behavior, that farmers do manage productive ecosystem services. I bring other elements to the literature, notably by providing new insights on the agricultural technology when productive ecosystem services are considered, or by showing that collective management of productive ecosystem services can only rarely arise spontaneously in real landscapes where farmers are heterogeneous. In the second part, I study the demand for the jointly provided public goods by the farmers’ modification of ecosystem service flows, i.e. I study the specificities of the demand for environmental services provided by farmers (in the sense of Engel et al., 2008). In particular, I study the role of the geographic scale of the demand for the design of agri-environmental policy. Indeed, if local public goods influence the welfare of the agents within a defined geographical area (e.g., the improvement of water quality by maintaining a wetland upstream of a treatment plant), global public goods can influence the welfare of all agents (e.g., the carbon sequestration into the soil of a wetland). In this part, I apply the framework of several literatures developed in environmental economics (for example, the literature on environmental federalism or on the "distance-decay") to the specificities of the environmental services provided by farmers; in particular, I integrate that the environmental service provided by a farmer affects the supply of multiple public goods in most cases, the demand for these public goods arising at different geographical scales. I contribute to the literature by showing that, although most of the demand for environmental services provided by farmers is captured locally (at the municipal level), some of the demand is captured by larger and farer areas. This has implications for the governance and the design of agri-environmental policies, which I explore through two examples: the reduction of pesticide application and the maintenance of agricultural wetlands.
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