Nadine Andrieu

• PhD
• French Agricultural Research Centre for International Development

Despite a growing literature highlighting the benefits of agroecology in Africa, policy makers, donors, and scientists are still debating the “viability” of agroecological practices. However, assessing the viability of agroecological practices poses challenges, and so far, no studies have clearly documented them and options for addressing them. The...

Evaluators widely utilize theory of change or impact pathway approaches to design and evaluate interventions. In research settings, there is increasing demand for ex ante impact pathways that are place‐based, coherent, and plausible, in order to foster more impactful interventions. Foresight approaches, which enable a collaborative, structured, and...

Seventy percent of smallholder farmers in Africa depend on rainfed farming systems, making them vulnerable to climate variability and extremes. Climate information services (CIS) adoption by smallholder farmers in Africa presents a promising solution for adaptation to climate variability. This paper unravels the complexities around climate services...

La faible productivité de l’agriculture en Afrique subsaharienne est due en grande partie à la dégradation de la fertilité des sols. Les agricultures familiales, pilier de la sécurité alimentaire de cette grande région, doivent relever le défi de la restauration et du maintien de la capacité productive des terres. Les pratiques endogènes des produc...

En Haïti, les systèmes agricoles sont fortement vulnérables au changement climatique. Cette étude vise à analyser la pertinence d’une démarche de co-conception de stratégies d’adaptation des exploitations agricoles au changement climatique dans une zone hautement vulnérable telle que Haïti. Menée à Saint Michel de l’Attalaye, l’étude reposait : (i)...

Crop losses from pests threaten global food security and safety. In the last six decades, pest control using chemical pesticides has resulted in important yield gains per unit area, worldwide. However, the long-term sustainability of chemical pest control has been increasingly thrown into doubt due to the negative impact on human health, biodiversi...

In the French West Indies, and particularly in Guadeloupe, agricultural policies mainly support the banana and sugarcane export sectors. However, driven by consumer demand, policy-makers are increasingly interested in developing local and agroecological food systems. Plantain (Musa spp., AAB), cultivated by a wide range of farmers, plays a key role...

Crop losses from pests threaten global food security and safety. In the last six decades, pest control using chemical pesticides has resulted in important yield gains per unit area, worldwide. However, the long-term sustainability of chemical pest control has been increasingly thrown into doubt due to the negative impact on human health, biodiversi...

Relatively a few studies assess the impact of climate change (CC) policies on effective farmers’ agronomic practices and associated agro-technical performance. This study aimed at characterizing how CC policies can help farmers to combine CC with other environmental issues to support the design of more effective policies at the farm level. It was c...

In Guadeloupe, a French overseas region, civil society is calling for an agroecological transition (AET) to obtain access to healthy agricultural products following a major ecological scandal caused by a persistent pesticide that contaminated water and agricultural soils. To support such a transition, we tested a five-step methodological framework...

To promote greater sustainability in agriculture, development of agroecology is increasingly being invoked. What are the conditions for establishing agroecological production in tropical regions? Based upon case studies in several tropical areas, we provide here some answers to this question. We review the “pillars” (i.e. principles) and the “imple...

Agriculture de conservation à Yilou (centre-nord, Burkina Faso) : une construction locale à l'épreuve de la dispersion des systèmes culturaux existants Conservation agriculture in Yilou (centre-nord, Burkina Faso): a local construction improving the dispersion of cropping systems Résumé L'Agriculture de Conservation (AC) associe trois principes à s...

CONTEXT Climate change and variability have been identified as major threats to key sectors such as agriculture that drive economic growth and sustainable development in developing countries. The provision of tailored weather and climate information services (WCIS) that meet users' expectations can play an important role in helping decision makers...

Integrated mixed crop-livestock farming systems help improve farm sustainability by securing agricultural incomes through the diversification of productions and by enhancing farm autonomy regarding agricultural inputs. Based on interactions between crop and livestock productions within farms, such systems are complex to manage and to model. A one-t...

Climate change adaptation is a cross-cutting policy issue that accounts for a diversity of policy approaches, tools, and goals. Unclear conceptualization and the absence of comparable metrics are challenges that hinder the assessment of progress toward policy goals. This study draws on a policy mix approach to analyze adaptation efforts at the subn...

The provision of tailored weather and climate information services (WCIS) to help adapt decision making to climate variability is gaining increasing recognition. This study analyzes the impact of seasonal and daily weather forecasts mediated by a multidisciplinary working group (MWG), a co-production model for weather and climate information. A two...

In the West African Sahel, climate variability and climate change pose huge challenges to food security and health, particularly for poor and marginalised population groups. Co-production of actionable climate information between scientists and users has been advocated to increase its use in adaptation to climate change. Consequently, Weather and C...

Climate change is challenging the sustainability of agricultural systems. Some authors argue that only an agroecological transformation of agricultural systems is the appropriate response to climate change issues. CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), aims to catalyze positive change towards climate-smart...

In West Africa, new management practices such as conservation agriculture with crop residue mulching can improve crop yields for individual farmers. However, in a context of complex social interactions between farmers, the introduction of such practices can also lead to conflicts between private interests and communal use of resources, for example...

CONTEXT During crises, adaptation or recovery measures or plans at local or national scales may not necessarily address longer-term or structural problems such as climate change mitigation. OBJECTIVE This article describes farmers and policymakers' responses to mitigate the adverse effects of Covid-19 on the agricultural sector. We then assess the...

A região do Semiárido, ao longo dos anos, foi alvo de uma transição de políticas públicas voltadas ao combate à seca para as políticas com base na Convivência com o Semiárido. Com base nesse paradigma, foram desenvolvidas políticas em vários âmbitos de modo a apoiar os agricultores familiares mais vulneráveis. Entretanto, diante das mudanças climát...

The agricultural sector is the second major source of climate change globally, contributing to anthropogenic Greenhouse Gas (GHG) emissions. In low-to-middle income countries, estimations indicate future increases in agricultural emissions. Climate-Smart Agriculture (CSA) has an express opportunity to transform agriculture across the globe. In Afri...

Developing relevant decision-support tools for policymakers to support large-scale implementation of climate-smart agriculture in the Global South is challenging given the great diversity in biophysical, socio-technical, and organizational conditions. This article describes a pilot exercise inspired by the recommendation domain literature that aime...

Climate change is challenging the sustainability of agricultural systems. Some authors argue that only an agroecological transformation of agricultural systems is the appropriate response to climate change issues. CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), aims to catalyze positive change towards climate-smart...

Purpose Coffee represents an important trade asset internationally. Around 70% of global coffee production is provided by 25 million smallholders farmers. In recent decades, coffee systems have been transformed into more intensified systems of coffee monoculture. The general objectives of this paper are to provide a better picture of the traditiona...

GeoFarmer is an app designed to support experience exchanges between farmers – be they positive or negative – so that they can learn from each other by asking questions and by sharing suggestions on how their crop, animal and farm management can be improved. Project implementers can also use it to obtain continuous feedback and follow up with farme...

The Peruvian Amazon is undergoing rapid and uneven economic growth, alongside alarming rates of deforestation , increasing land use change and food security concerns. Although it has been widely acknowledged that food insecurity is intrinsically linked with deforestation, the links have not been thoroughly documented. The aim of this paper is to an...

The main purpose of this work was analyzing how an innovation platform can foster and provide a basis for multi-actor collaboration in order to enable climate-smart agriculture (CSA) implementation at the local level. Using a mix of social (interactions between stakeholders, knowledge changes, adoption of practices) and technical indicators (income...

The main purpose of this work was analyzing how an innovation platform can foster and provide a basis for multi-actor collaboration in order to enable climate-smart agriculture (CSA) implementation at the local level. Using a mix of social (interactions between stakeholders, knowledge changes, adoption of practices) and technical indicators (income...

The literature is increasing on how to prioritize climate-smart options with stakeholders but relatively few examples exist on how to co-design climate-smart farming systems with them, in particular with smallholder farmers. This article presents a methodological framework to co-design climate-smart farming systems with local stakeholders (farmers,...

Climate Smart Agriculture (CSA) seeks to meet three challenges: improve the adaptation capacity of agricultural systems to climate change, reduce the greenhouse gas emissions of these systems, and ensure local and global food security. Many CSA assessment methods that consider these three challenges have emerged, but to better assess the environmen...

http://agritrop.cirad.fr/592984/1/ID592984.pdf Chapter 1. Producers in western Burkina Faso have to contend with high rainfall variability and very volatile agricultural prices. Such uncertainties have led the vast majority of them to diversify their production and practise mixed crop-livestock farming using low levels of inputs in order to ensure...

http://agritrop.cirad.fr/590750/7/ID590750.pdf Après avoir rappelé les principes de la co-conception de systèmes agricoles innovants, nous présenterons une synthèse des évolutions observées dans les systèmes de polyculture-élevage, puis nous exposerons des exemples de travaux de conception d’innovations agro-écologiques, techniques et organisationn...

L’analyse et la quantification des performances de la petite agriculture familiale (PAF) constituent un enjeu au regard de la transition agroécologique. Cet article utilise une méthode combinant enquêtes auprès d’agriculteurs de la PAF de Guadeloupe, typologie et évaluation, à l’échelle de l’exploitation, des avantages qu’ils tirent de pratiques ag...

Innovation Platforms for the adoption of Climate Smart Agriculture for Family farmers (PIASAC) was a project aimed at creating local knowledge and capacities on climate change and finding options for adaption in a participatory way. The project took place in the municipality of Gracias, located in the dry corridor of Honduras. 38 farming families w...

Climate-smart agriculture (CSA) is an approach to help agricultural systems worldwide, concurrently addressing three challenge areas: increased adaptation to climate change, mitigation of climate change, and ensuring global food security - through innovative policies, practices, and financing. It involves a set of objectives and multiple transforma...

The Climate Smart Villages (CSV) represent an agriculture research-for-development approach that enables dialogue between communities of farmers, scientists, extensionists and decision-makers towards co-learning and co-developing context-specific options that support short and long-term adaptation to climate change while reducing impacts on the env...

Agricultural productivity and growth in Mali are under threat from erratic rainfall, resulting in more frequent dry years. The national economy is vulnerable to climate change due to 50% of the gross domestic product coming from the agricultural sector and 75% of the population living in rural areas. The Climate-Smart Agriculture (CSA) concept aris...

OPERATIONALIZING AN INNOVATION PLATFORM APPROACH FOR COMMUNITY-BASED PARTICIPATORY RESEARCH ON CONSERVATION AGRICULTURE IN BURKINA FASO–CORRIGENDUM - DER DABIRE, NADINE ANDRIEU, PATRICE DJAMEN, KALIFA COULIBALY, HELENA POSTHUMUS, AMADOU MOHAMADOUN DIALLO, MEDINA KARAMBIRI, JEAN-MARIE DOUZET, BERNARD TRIOMPHE

Numerous innovation platforms have been implemented to encourage the adoption of agricultural innovations and stakeholder interactions within a value chain. Yet little research has been undertaken on the design and implementation of innovation platforms focussing on issues other than market access and aiming to encourage agro-ecological intensifica...

Central American countries, particularly Guatemala, are experiencing extreme climate events which are disproportionately affecting agriculture and subsequently rural livelihoods. Governments are taking action to address climatic threats, but they need tools to assess the impact of policies and interventions aiming to decrease the impacts of climate...

La co-conception de systèmes agricoles innovants est une piste prometteuse pour répondre au défi de l’innovation, notamment pour les exploitations agricoles familiales africaines confrontées à de multiples changements. Mais il faut penser à la place et aux rôles tenus par de multiples acteurs (agriculteurs, conseillers, chercheurs) pour produire le...

The climate-smart agriculture concept aims to encourage reflection on the transition to sustainable agricultural systems adapted to climate change. This chapter is based on participatory research studies carried out in Colombia and Burkina Faso to investigate, with farmers, the relevance of new (agroclimatic information) or long promoted (compost)...

Large agricultural development projects often struggle to achieve impact because they lack costeffective systems for capturing regular feedback from implementers and beneficiaries. Even when they use a participatory approach, they cannot easily take into account a large range of farmers’ needs and make them specific. The 5Q approach makes monitorin...

Integrating crop and livestock activities at the farm level is commonly proposed by research programs in sub-Saharan Africa as a way to sustainably improve farm productivity. This integration process requires farmers to change their knowledge, perceptions and practices to achieve sustainable intensification. This article presents a participatory su...

The way a model is designed to assist farmers in their decision-making may influence how it is understood and perceived by farmers and shape interactions between farmers and model users (researcher, advisor). This study compared the strengths and weaknesses of three types of whole farm models used by researchers to assist 18 crop-livestock farmers...

Les matériels conventionnels de travail du sol et de semis utilisés en traction animale, ne sont pas adaptés aux sols non travaillés ayant une couverture végétale. Des matériels spécifiques de semis direct en traction animale ont été conçus pour sols non travaillés avec une couverture végétale, à l’exemple du semoir de semis direct brésilien FITARE...

Low crop yields in the savannah zones of West Africa are commonly attributed to rainfall deficits and poor soil fertility. In this study, an assessment was made on how the position of fields belonging to different farm types can explain soil variability and related crop yield gaps in two villages in Burkina Faso, Yilou and Koumbia, located, respect...

En Afrique de l’Ouest, l’agriculture de conservation apparaît comme une voie pour l’intensification écologique des systèmes de production, sous réserve pour la recherche de produire plus de références sur ses effets à l’échelle de l’exploitation agricole. Cette étude conduite au Burkina Faso analyse ex ante les effets de l’agriculture de conservati...

Privatisation of grazing resources is emerging in the agro-pastoral systems of West Africa, resulting in increased pressure on the remaining communal rangelands and greater competition between farmers for access to crop residues. Differential management strategies arise as determined by household diversity. This study quantified the flows of biomas...

En Afrique de l'Ouest, l'agriculture de conservation apparaıt comme une voie pour l'intensification e ´cologique des systèmes de production, sous réserve pour la recherche de produire plus de références sur ses effets a ` l'e ´chelle de l'exploitation agricole. Cette e ´tude conduite au Burkina Faso analyse ex ante les effets de l'agriculture de co...

Le concept d’agriculture climato-intelligente a pour objectif de favoriser la réflexion sur la transition vers des systèmes agricoles durables et adaptés au changement climatique. Ce chapitre se base sur des travaux menés en Colombie et au Burkina Faso dans le cadre de recherches participatives pour explorer avec les producteurs l’intérêt de soluti...

Traditionally, cereal crop harvest residues are communally grazed by the ruminant herds of villagers and transhumant pastoralists in the agro-pastoral systems which predominate in the savannah zone of West Africa. We analysed the impact of the private use of crop residues by individual farmers on crop and livestock productivity at three scales: the...

L 'agriculture de conservation reste encore faiblement adoptée en Afrique de l'Ouest et du Centre (AOC). Cet article dresse un bilan des connaissances sur l'AC et de ses perspectives dans la région, afin d'identifier les possibilités pour la rendre plus accessible aux agriculteurs.

L'agriculture de conservation (AC) désigne la famille de systèmes de culture où le travail minimal du sol, la couverture végétale permanente du sol et la diversification des cultures à travers les associations et/ou rotations des cultures sont appliqués simultanément à l'échelle de la parcelle, une étude originale menée au Burkina teste sa faisabil...

L’agriculture de conservation (AC) désigne la famille de systèmes de culture où le travail minimal du sol, la couverture végétale permanente du sol et la diversification des cultures à travers les associations et/ou rotations des cultures sont appliqués simultanément à l’échelle de la parcelle, une étude originale amenée au Burkina teste sa faisabi...

L’approche Champ école des producteurs (CEP) a été retenue par African Conservation Tillage Network (ACT) et ses partenaires pour la mise en oeuvre des projets de recherche – développement visant la promotion de l’AC en zone semi-aride du Burkina Faso. Le CEP peut être défini comme une méthode d’apprentissage par la pratique favorisant le développe...

L’agriculture de conservation reste encore faiblement adoptée en Afrique de l’Ouest et du Centre (AOC). Cet article dresse un bilan des connaissances sur l’AC et de ses perspectives dans la région, afin d’identifier les possibilités pour la rendre plus accessible aux agriculteurs

This book aims to provide an up-to-date state-of-the-art review on various aspects of Conservation Agriculture (CA) by reviewing the past and current research from various regions of the globe so that all others interested in CA could benefit from experiences gained under different agroclimatic and socio-economic conditions across the globe. This r...

Les exploitations de polyculture élevage sont largement dominantes dans les agricultures familiales des pays du sud et plus particulièrement dans les zones de savane africaines et malgaches. L’analyse des évolutions des relations entre l’agriculture et l’élevage dans ces régions sur un demi-siècle montre que l’intégration entre ces secteurs est enc...

Les paysans de l'Afrique subsaharienne doivent innover pour accroitre durablement la production agricole, pour contribuer à la sécurité alimentaire et pour s'adapter aux changements globaux (climatiques, démographiques, etc.). Mais force est de reconnaitre que la majorité des modèles de changement proposés par la recherche n'ont pas été adoptés par...

Strategic and tactical decision support tools can assist farmers to make farm management decisions. The challenge facing researchers is to construct decision support tools that lead to the successful adoption of the strategies selected. This article describes and assesses the use of a whole-farm model in West African savannah regions. Farmers and a...

Smallholder farmers in semi-arid Africa are in an increasingly vulnerable position due to the direct and indirect effects of climate change, demographic pressure and resource degradation. Conservation agriculture (CA) is promoted as an alternative to restore soil productivity through increased water and nutrient use efficiencies in these regions. H...

Simulation tools for supporting crop-livestock farmers in their strategic decisionmaking Digitized models are potentially valuable to support farmers in their strategic decisionmaking processes. They are, however, scarcely used in advisory contexts. This paper describes two experiments with, on the one hand, dairy farmers in Morocco and on the othe...

In subSaharan Africa the population is exposed to various forms of food insecurity. To cope with seasonal food insecurity farmers can mobilize different strategies. Fonio, Digitaria exilis, is an endemic traditional cereal of West Africa. Its persistence in production systems can be linked to its role in facing seasonal food insecurity. The aim of...

La production agricole de l’Afrique sub-saharienne essentiellement pluviale est particulièrement vulnérable à la variabilité climatique. A l’échelle des exploitations, cette variabilité a un impact direct sur la production primaire, sur le revenu et la sécurité alimentaire de la famille. Dans cette étude, nous évaluons l’intérêt économique de mettr...

Alors que l’invention peut se définir comme la découverte d’un principe, l’innovation peut être définie comme l’adoption de ce principe par une population (1, 2, 3, 17). En Afrique de l’Ouest, la grande majorité des inventions et leur traduction fréquente en propositions techniques de la recherche pour intensifier les systèmes mixtes agriculture-él...

En zone agropastorale d’Afrique de l’Ouest, certains producteurs ont des objectifs d’intensification de leurs systèmes de production. Les méthodes de recherche action en partenariat (RAP) peuvent accompagner ces dynamiques, notamment en mobilisant des outils de modélisation. L’objectif de cet article a été d’analyser l’intérêt de l’utilisation d’un...

Les articles présentés ici ont mis en lumière une diversité de méthodes et d’outils d’analyse qui permettent d’évaluer les propositions de la recherche visant à améliorer la durabilité des systèmes agro-sylvo-pastoraux d’Afrique de l’Ouest. Ces méthodes se réfèrent à l’identification des facteurs d’adoption des produits de la recherche, mais aussi...

Many simulation models that are used to assess the impact of mixed farming systems have a high level of complexity that is not suitable for teaching farmers about the impacts of their practices. In this paper, we present a model that was developed and used with farmers as a discussion support tool to address the impacts of farming management strate...

Cette communication vise à montrer l'intérêt d'une méthode de conseil pour le pilotage stratégique des exploitations agricoles, en cours d'élaboration dans l'Ouest du Burkina Faso. Cette méthode s'appuie sur la modélisation du fonctionnement technico-économique des exploitations. La communication présente la structure du modèle en sept modules : re...

In the West of Burkina Faso, improving the integration of crop and livestock activities could allow to strengthen the productivity and sustainability of farming systems. But few of the technical propositions of agronomists were adopted and transformed into innovations by farmers. The TERIA project (2005-2007) tested a framework of Participative Act...

The cotton zone of Burkina Faso is characterised by high constraints, thus farmers develop flexible cropping patterns allowing them to face economic and climatic risks. These strategies are a combination of different sources of flexibility (relational, structural, operational, and external). The characterization of these strategies is the first ste...