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1. Water Use Efficiency (WUE) across scales: From genes to landscape

Author

Vincent Vadez, Raphael Pilloni, Alexandre Grondin, Amir Hajjarpoor, Hatem Belhouchette, Youssef Brouziyne, Ghani Chehbouni, Mohamed Hakim Kharrou, Rim Zitouna-Chebbi, Insaf Mekki, Jérôme Molénat, Frédéric Jacob, Jérôme Bossuet, Diversité, adaptation, développement des plantes (UMR DIADE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM), International Crops Research Institute for the Semi-Arid Tropics [Inde] (ICRISAT), Consultative Group on International Agricultural Research [CGIAR] (CGIAR), Centre d'Etude Regional Pour l'Amelioration de l'Adaptation A la Secheresse (CERAAS), Institut Sénégalais de Recherches Agricoles [Dakar] (ISRA), LMI Adaptation des Plantes et microorganismes associés aux Stress Environnementaux [Dakar] (LAPSE), Institut de Recherche pour le Développement (IRD), Agrosystèmes Biodiversifiés (UMR ABSys), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM), Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), International Water Management Institute, MENA Office (IWMI), Université Mohammed VI Polytechnique [Ben Guerir] (UM6P), International Water Research Institute (IWRI), Institut National de Recherche en Génie Rural Eaux et Forêts (INRGREF), Ecole Nationale du Génie Rural, des Eaux et des Forêts (ENGREF)-Institution de la Recherche et de l'Enseignement Supérieur Agricoles [Tunis] (IRESA), Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH), Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Montpellier, Independent Consultant, The paper was written and supported under the Make Our Planet Great Again (MOPGA) ICARUS project (Improve Crops in Arid Regions and future climates) funded by the Agence Nationale de la Recherche (ANR, grant ANR-17-MPGA-0011), and written in the scope and with the support of the ClimBeR initiative of the CGIAR, itself supported by the France-CGIAR action plan on Climate Change., ANR-17-MPGA-0011,ICARUS,Improve Crops in Arid Regions and future climates(2017), Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM), Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM), and Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro

Subjects
CLIMATIC CHANGE, Physiology, PAYSAGE AGRICOLE, WATER MANAGEMENT, MODELS, [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy, CROPPING SYSTEMS, UTILISATION DE L'EAU, Plant Science, drought, GESTION DES EAUX, EXPLOITATION AGRICOLE, AGRICULTURAL LANDSCAPE, MODELE, FARMS, farming systems, WUE, ECHELLE SPATIALE, SECHERESSE, [SDE.IE]Environmental Sciences/Environmental Engineering, SYSTEME DE CULTURE, TRANSPIRATION, [SDV.SA.AEP]Life Sciences [q-bio]/Agricultural sciences/Agriculture, economy and politics, food security, WATER USE, landscape, WATER USE EFFICIENCY, landscapewater use efficiency, EFFICIENCE D'UTILISATION DE L'EAU, climate change, CHANGEMENT CLIMATIQUE, breeding, SPATIAL SCALE, farming system, crop breeding, [SDV.EE.BIO]Life Sciences [q-bio]/Ecology, environment/Bioclimatology
Abstract

International audience; Highlights:This paper reviews ways to improve water use efficiency beyond the plant level, across time and space scales, from cells, organs, and plants, to field, farm, and landscape.Abstract:Water scarcity will be one of the main issues of the 21 st century, because of competing needs between civil, industrial, and agriculture use. While agriculture is the largest user of water, its share is bound to decrease as societies develop. Clearly, agriculture needs to become more water efficient. Improving water use efficiency (WUE) at the plant level is important although there is a long way into translating this at the farm/landscape level. As we move up from a cell/organ/plant scale to more integrated scales such as plot, field, farm system, and landscape, other factors need to be considered, including trade-offs, to possibly improve WUE. These include choices of crop variety/species, farm management, landscape design, infrastructure development, ecosystem functions, where human decisions matter. This review is a cross-disciplinary attempt to analyze ways to address WUE at these different scales where metrics of analysis are defined and trade-offs considered. The equations in this perspective paper use similar metrics across scales for an easier connection and are developed to highlight which levers, at different scales, can improve WUE. We also refer to models operating at these different scales to assess WUE. While our entry point is plants and crops, we scale up the analysis of WUE to farm systems and landscapes.

Published
2023

2. Les émissions de N2O peuvent-elles compenser les avantages du stockage du carbone organique dans le sol ?

Author

David S. Powlson, Frédéric Rees, Victoria Naipal, Jérôme Balesdent, Rémi Cardinael, Julien Fouché, Emanuele Lugato, Elisa Bruni, Stefan Frank, Philippe Ciais, Dominique Arrouays, Catherine Hénault, Benoit Gabrielle, Hanqin Tian, Thomas Nesme, Sylvain Pellerin, Hugo Valin, Bertrand Guenet, Jean-Pierre Caliman, Michael Obersteiner, Claire Chenu, Feng Zhou, Yang Su, Jean-François Soussana, Dominique Desbois, Songchao Chen, Daniel P. Rasse, Martial Bernoux, Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Modélisation des Surfaces et Interfaces Continentales (MOSAIC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Ecologie fonctionnelle et écotoxicologie des agroécosystèmes (ECOSYS), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), InfoSol (InfoSol), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Food and Agriculture Organization of the United Nations [Rome, Italie] (FAO), Smart Research Institute [Indonésie] (SMARTRI), SMART agribusiness and food [Jakarta] (SMART), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Agroécologie et Intensification Durables des cultures annuelles (UPR AIDA), University of Zimbawe [Harare] (UZ), University of Zimbawe, ICOS-ATC (ICOS-ATC), Economie Publique (ECO-PUB), Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH), Institut de Recherche pour le Développement (IRD)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), International Institute for Applied Systems Analysis [Laxenburg] (IIASA), Agroécologie [Dijon], Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), European Commission - Joint Research Centre [Ispra] (JRC), Interactions Sol Plante Atmosphère (UMR ISPA), Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Rothamsted Research, Norwegian Institute of Bioeconomy Research (NIBIO), Auburn University (AU), Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University [Beijing], This paper stemmed from a workshop 'Emerging challenges in large scale soil carbon sequestration' held in Paris on 8-10 October 2018. The workshop was financially supported by the French government under the ANR 'Investissements d'avenir' program with the reference CLAND ANR-16-CONV-0003. F.Z. acknowledges support from the National Natural Science Foundation of China (grant no. 41671464), ANR-16-CONV-0003,CLAND,CLAND : Changement climatique et usage des terres(2016), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Département Performances des systèmes de production et de transformation tropicaux (Cirad-PERSYST), Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Biotechnology and Biological Sciences Research Council (BBSRC), Norsk institutt for bioøkonomi=Norwegian Institute of Bioeconomy Research (NIBIO), Support from the National Natural Science Foundation of China (grant no. 41671464), Institut de Recherche pour le Développement (IRD)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Territoires, Environnement, Télédétection et Information Spatiale (UMR TETIS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre d'études spatiales de la biosphère (CESBIO), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Centre National d'Études Spatiales [Toulouse] (CNES)

Subjects
0106 biological sciences, Atténuation de l'effet de serre, 010504 meteorology & atmospheric sciences, Travail du sol, [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy, greenhouse gases emissions, Agroforesterie, Carbone dans le sol, 7. Clean energy, 01 natural sciences, agroforestry, Interactions biologiques, Environmental protection, Biochar, organic amendment, General Environmental Science, 2. Zero hunger, [SDV.EE]Life Sciences [q-bio]/Ecology, environment, Global and Planetary Change, Ecology, greenhouse gas emissions, land based mitigation, erosion, [SHS.ECO]Humanities and Social Sciences/Economics and Finance, Tillage, Gaz a effet de serre, séquestration du carbone, Cycle de l'azote, réduction des émissions, [SDE]Environmental Sciences, tillage, Culture de couverture, P33 - Chimie et physique du sol, Labour, Land management, Climate change, érosion, [SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study, 010603 evolutionary biology, 12. Responsible consumption, Matière organique du sol, Fertilité du sol, Environmental Chemistry, [SDV.BV]Life Sciences [q-bio]/Vegetal Biology, biochar, Occupation des sols, émissions de gaz à effet de serre, 0105 earth and related environmental sciences, cover crops agroforestry, Oxyde nitreux, Global warming, Soil carbon, 15. Life on land, soil organic carbon, land-based mitigation, Amendement organique, 13. Climate action, Greenhouse gas, Soil water, Environmental science, cover crops, [SDE.BE]Environmental Sciences/Biodiversity and Ecology, Cycle du carbone
Abstract

This paper stemmed from a workshop 'Emerging challenges in large scale soil carbon sequestration' held in Paris on 8-10 October 2018; International audience; To respect the Paris agreement targeting a limitation of global warming below 2°C by 2100, and possibly below 1.5°C, drastic reductions of greenhouse gas emissions are mandatory but not sufficient. Large‐scale deployment of other climate mitigation strategies are also necessary. Among these, increasing soil organic carbon (SOC) stocks is an important lever because carbon in soils can be stored for long periods and land management options to achieve this already exist and have been widely tested. However, agricultural soils are also an important source of nitrous oxide (N$_2$O), a powerful greenhouse gas, and increasing SOC may influence N$_2$O emissions, likely causing an increase in many cases, thus tending to offset the climate change benefit from increased SOC storage. Here, we review the main agricultural management options for increasing SOC stocks. We evaluate the amount of SOC that can be stored as well as resulting changes in N$_2$O emissions to better estimate the climate benefits of these management options. Based on quantitative data obtained from published meta‐analyses and from our current level of understanding, we conclude that the climate mitigation induced by increased SOC storage is generally overestimated if associated N$_2$O emissions are not considered but, with the exception of reduced tillage, is never fully offset. Some options (e.g, biochar or non‐pyrogenic C amendment application) may even decrease N$_2$O emissions.; Pour respecter l'accord de Paris visant à limiter le réchauffement climatique à moins de 2°C d'ici 2100, et éventuellement à moins de 1,5°C, des réductions drastiques des émissions de gaz à effet de serre sont obligatoires mais pas suffisantes. Le déploiement à grande échelle d'autres stratégies d'atténuation du climat est également nécessaire. Parmi celles-ci, l'augmentation des stocks de carbone organique du sol (SOC) est un levier important car le carbone dans les sols peut être stocké pendant de longues périodes et les options de gestion des terres pour y parvenir existent déjà et ont été largement testées. Toutefois, les sols agricoles sont également une source importante d'oxyde nitreux (N$_2$O), un puissant gaz à effet de serre, et l'augmentation du SOC peut influer sur les émissions de N$_$O, provoquant probablement une augmentation dans de nombreux cas, tendant ainsi à compenser le bénéfice du changement climatique résultant du stockage accru du SOC. Nous passons ici en revue les principales options de gestion agricole pour l'augmentation des stocks de SOC. Nous évaluons la quantité de SOC qui peut être stockée ainsi que les changements qui en résultent dans les émissions de N$_2$O afin de mieux estimer les avantages climatiques de ces options de gestion. Sur la base des données quantitatives obtenues à partir de méta-analyses publiées et de notre niveau de compréhension actuel, nous concluons que l'atténuation du climat induite par un stockage accru du SOC est généralement surestimée si l'on ne tient pas compte des émissions de N$_2$O associées, mais, à l'exception du travail réduit du sol, n'est jamais totalement compensée. Certaines options (par exemple, le biochar ou l'application d'un amendement C non pyrogène) peuvent même réduire les émissions de N$_2$O.

Published
2021

3. Differences in motivations and social impacts across urban agriculture types: Case studies in Europe and the US

Author

Kathrin Specht, Rositsa T. Ilieva, Chris Blythe, Runrid Fox-Kämper, Victoria Schoen, Lidia Poniży, Agnès Lelièvre, Silvio Caputo, Caitlin K. Kirby, Jason K. Hawes, Nevin Cohen, Nebraska Wesleyan University (NWU), ILS - Research Institute for Regional and Urban Development (ILS - Research Institute for Regional and Urban Development), ILS - Research Institute for Regional and Urban Development, University of Michigan System, City University of New York [New York] (CUNY), University of Kent [Canterbury], Sciences pour l'Action et le Développement : Activités, Produits, Territoires (SADAPT), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Adam Mickiewicz University in Poznań (UAM), Social Farms & Gardens, This paper is based on FEW-meter project, funded by ESRC, UK, grant number ES/S002170/2, by BMBF: Germany, grant number 01LF1801A, by ANR: France, grant number ANR-17-SUGI-0001-01, by NSF: USA, Belmont Forum 18929627, by NCN: Poland, grant no 2017/25/Z/HS4/03048, and by European Union's Horizon 2020 research and innovation programme (GA No 730254) under the JPI Urban Europe's call 'SUGI FWE Nexus'. The German-American Fulbright Commission also provided support for this project., and Elsevier

Subjects
Multivariate analysis, [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy, 0211 other engineering and technologies, 02 engineering and technology, 010501 environmental sciences, Management, Monitoring, Policy and Law, 01 natural sciences, Multivariate analysis of variance, Urban farms, 11. Sustainability, General wellbeing, Urban agriculture, Socioeconomics, 0105 earth and related environmental sciences, Nature and Landscape Conservation, 2. Zero hunger, Ecology, Socialization, 1. No poverty, Social benefits, 021107 urban & regional planning, 15. Life on land, Health and wellbeing, Urban Studies, Geography, Survey data collection, Motivations, Community gardens, Allotment gardens
Abstract

International audience; Urban agriculture is an increasingly popular approach to addressing negative social and health effects of cities. Social benefits of urban agriculture include improved health and wellbeing, economic opportunities, social cohesion, and education. However, the extent to which urban agriculture participants are motivated by or experience these impacts has rarely been measured quantitatively, especially across the many different types of urban agriculture. We analyzed survey data from 74 urban agriculture sites in France, Germany, Poland, the United Kingdom, and the United States to quantitatively assess the relationships between urban agriculture types, farmers and gardeners' motivations, and the social impacts of urban agriculture. Through factor analysis, we established valid and reliable measurements of participants' motivations and impacts. We identified four scales: general wellbeing impacts, nutritional health impacts, economic interests, and socialization motivations. Through multivariate analysis of variance, we document significant differences in motivations and reported impacts across types of urban agriculture. Finally, we conducted a multilevel multivariate analysis to explore the predictors of general wellbeing impacts. Participants with stronger economic interests, stronger socialization motivations, and who are owners or primary operators of their plots would be predicted to report greater general wellbeing impacts of urban agriculture. These results provide data about the impacts of urban agriculture projects that enable urban planners and policymakers to maximize the desired social benefits of urban agriculture.

Published
2021

4. Economic Analysis of the Traditional Cultural Terraced Olive-Growing Landscape and Participatory Planning Process

Author

Biancamaria Torquati, Lucio Cecchini, Sonia Venanzi, Giulia Giacchè, Department of Agricultural, Food and Environmental Sciences, University of Perugia (DSA3), Università degli Studi di Perugia (UNIPG), Espaces et Sociétés (ESO), Institut de Géographie et d'Aménagement Régional de l'Université de Nantes (IGARUN), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université d'Angers (UA)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Le Mans Université (UM), Bureau de recherche Exp’AU EXPertise en Agricultures Urbaines, Partenaires INRAE, Sciences pour l'Action et le Développement : Activités, Produits, Territoires (SADAPT), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, and The research on which this paper is based was undertaken as part of a research project titled ‘Traditional agricultural landscapes in Italy: multi-disciplinary and multi-scale assessment for the development of an integrated model for landscape planning and management’, co-financed by Programs of Relevant National Interest (PRIN) Grant number 2010LE4NBM_013, and as a part of a research project titled ‘The quality of the landscape for socio-economic development: the case study of Trevi’s historical olive groves’, co-financed by Basic Research of University of Perugia. We are particularly grateful to Carlo Sportolaro for his cooperation in construction of the GIS database and for realisation of maps, and to Alvaro Paggi and Tiziana Ravagli for their cooperation in conducting the study.

Subjects
Participatory planning, 010504 meteorology & atmospheric sciences, Abandonment, business.industry, Process (engineering), Cultural landscape, Abandonment (legal), [SDV.SA.AGRO]Life Sciences [q-bio]/Agricultural sciences/Agronomy, Public institution, Extra Virgin Olive Oil, 15. Life on land, 010501 environmental sciences, 01 natural sciences, GISGeographic Information Systems, 12. Responsible consumption, abandonmentAbandonment, Traditional Olive Groves, Incentive, Agriculture, Olive-growing Areas, 11. Sustainability, Profitability index, Business, Environmental planning, 0105 earth and related environmental sciences
Abstract

International audience; Terraced landscapes are increasingly considered as valuable cultural, social, and environmental systems. However, we could attribute the loss of most of these landscapes and their tangible and intangible heritages to the abandonment or degradation of these areas that could be valorised and protected. The main goals of this study are providing a methodology and tools to analyse traditional terraced landscapes integrating spatial analysis with socio-economic analysis and suggesting operational or political proposals to reduce the abandonment of agricultural terraces. The selected study area is the olive-growing area in the municipality of Trevi (Umbria Region, Italy). This study’s innovative contribution is its methodology composed of two main steps: construction of an integrated and open database followed by launch of a participatory planning process. The results show that the main weakness of the conservation of the olive-growing landscape is the profitability level of olive oil production and sale. Some measures need to be implemented to address these issues, and a joint public and private effort is required. On the one hand, public institutions should provide direct funding and incentives, and on the other, consumers should be willing to pay more for extra-virgin olive oil with landscaped value. Moreover, nomination for inscription into UNESCO’s World Heritage List as a cultural landscape, advocated by local institutions, could generate useful synergies to implement efficient collective marketing policies, which are particularly demanded by olive growers.

Published
2019