Sylvain Pellerin

Sylvain Pellerin
French National Institute for Agriculture, Food, and Environment (INRAE) | INRAE · Department of Environment and Agronomy

PhD

About

245
Publications
58,953
Reads
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5,237
Citations

Publications

Publications (245)
Article
Full-text available
Consumers increasingly demand information about the environmental impacts of their food. The French government is in the process of introducing environmental labelling for all food products. A scientific council was set up, and its main conclusions are presented in this article, through six questions: What environmental issues should be considered?...
Preprint
The global phosphorus (P) cycle has been dramatically altered by human activities through the use of mineral P fertilizers, often referred to anthropogenic P. The application of mineral P fertilizers on agricultural soils has driven the planet beyond its safe operating space but the extent to which the global P cycle relies on anthropogenic P has n...
Technical Report
Full-text available
En application de l’article 15 de la loi relative à la lutte contre le gaspillage alimentaire et à l’économie circulaire (loi AGEC de 2020), remplacé par l'article 2 de la loi Climat et résilience (2021), le Ministère de la Transition Écologique et l’Ademe ont lancé une Expérimentation en vue de concevoir et mettre en place un système d’affichage e...
Technical Report
Full-text available
Le Conseil Scientifique (CS) considère qu’il est possible de concevoir et de mettre en place un système d’affichage environnemental, qui réponde aux attentes exprimées par le législateur dans la loi AGEC (2020), puis dans l'article 2 de la loi Climat et résilience (2021). Dans cette perspective, les travaux menés par le CS, sur la base de la littér...
Book
Full-text available
L’initiative « 4 pour 1 000 : les sols pour la sécurité alimentaire et le climat » propose d’augmenter chaque année d’un quatre millième le stock de carbone présent dans tous les sols du monde. À la demande de l’Ademe et du ministère de l’Agriculture et de l’Alimentation, l’Inra (devenu aujourd’hui INRAE) a conduit une étude, centrée sur la France...
Article
Full-text available
Single and combined fertilization additions are a common tool to assess the interactions between nutrients in a given ecosystem. While such experiments can allow systems to be defined into categories of nutrient interactions, for example, simultaneous co‐limitation or single resource response, this categorization may itself be sensitive to way nutr...
Article
Full-text available
Organic agriculture is widely accepted as a strategy to reduce the environmental impacts of food production and help achieve global climate and biodiversity targets. However, studies concluding that organic farming could satisfy global food demand have overlooked the key role that nitrogen plays in sustaining crop yields. Using a spatially explicit...
Article
Full-text available
How global gridded crop models (GGCMs) differ in their simulation of potential yield and reasons for those differences have never been assessed. The GGCM Intercomparison (GGCMI) offers a good framework for this assessment. Here, we built an emulator (called SMM for simple mechanistic model) of GGCMs based on generic and simplified formalism. The SM...
Article
Full-text available
Increasing soil organic carbon (SOC) stocks is a promising way to mitigate the increase in atmospheric CO2 concentration. Based on a simple ratio between CO2 anthropogenic emissions and SOC stocks worldwide it has been suggested that a 0.4% (4 per 1000) yearly increase of SOC stocks could compensate for current anthropogenic CO2 emissions. Here, we...
Article
Full-text available
Livestock animals play a key role in organic farming systems by providing nutrients for croplands through manure production and nutrient-dense food for human consumption. However, we lack global, synthetic view about livestock productivity in organic farming and about its differences with conventional farming. Here we fill this important gap of kno...
Article
Many studies have assessed the potential of agricultural practices to sequester carbon (C). A comprehensive evaluation of impacts of agricultural practices requires not only considering C storage but also direct and indirect emissions of greenhouse gases (GHG) and their side effects (e.g. on the water cycle or agricultural production). We used a hi...
Article
Full-text available
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 import...
Article
Many studies have assessed the potential of agricultural practices to sequester carbon (C). A comprehensive evaluation of impacts of agricultural practices requires not only considering C storage but also direct and indirect emissions of greenhouse gases (GHG) and their side effects (e.g., on the water cycle or agricultural production). We used a h...
Article
Full-text available
Soil organic matter (OM) represents a key C pool for climate regulation but also an essential component for soil functions and services. Scientific research in the 21st century has considerably improved our knowledge of soil organic matter and its dynamics, particularly under the pressure of the global disruption of the carbon cycle. This paper rev...
Article
The CAP post 2020: Insights from research This paper offers a preliminary assessment of some aspects of the legislative proposals for the CAP after 2020, which were presented by the European Commission on June 1, 2018. In the first section, we analyze the objectives of the new CAP and their implementation in the form of national strategic plans. Th...
Preprint
Full-text available
How Global Gridded Crop Models (GGCMs) differ in their simulation of potential yield and reasons for those differences have never been assessed. The GGCM Inter-comparison (GGCMI) offers a good framework for this assessment. Here, we built an emulator (called SMM for Simple Mechanistic Model) of GGCMs based on generic and simplified formalism. The S...
Article
Cet article propose une analyse de plusieurs aspects des propositions législatives pour la PAC de l’après 2020 présentées par la Commission européenne le 1er juin 2018. La première section, de nature transversale, aborde les questions des objectifs de la future PAC et de leur déclinaison en instruments mis en œuvre dans le cadre de plans stratégiqu...
Article
Full-text available
Realizing more sustainable food, feed, and bioenergy systems will require interventions such as increased recycling of nutrients and coordination of biomass flows among farms. Innovative tools to explore the co-benefits and trade-offs of improving flow circularity in agro-food systems at different scales are needed to better understand the efficacy...
Article
Full-text available
Phosphorus (P) is the second most important nutrient after nitrogen (N) and can greatly diminish plant productivity if P supply is not adequate. Plants respond to soil P availability by adjusting root biomass to maintain uptake and productivity due to P use. In spite of our vast knowledge on P effects on plant growth, how to functionally model enha...
Preprint
Full-text available
Abstract. Scientific research in the 21st century has considerably improved our knowledge of soil organic matter and its dynamics, particularly under the pressure of the global disruption of the carbon cycle. This paper reviews the processes that control C dynamics in soil, the representation of these processes over time, and their dependence on va...
Article
Specialisation of farms and spatial segregation between crop and livestock production systems havehampered the proper recycling of nutrients. As a result, N and P budgets are often in excess in intensivelivestock regions, whereas intensive arable regions rely on mineral fertilisers. Despite progress inadjusting mineral supply to animal needs in fee...
Article
Full-text available
To date, the stoichiometry concept has been poorly used to explore C, N, and P cycles in agroecosystems. As agriculture is now under pressure to reduce the use of synthetic inputs, ecological processes and alternative agricultural practices will become the main regulators of the relationships between C, N, and P and thereby of nutrient availability...
Article
Full-text available
Agro-food networks are characterized by complex material exchanges among farms, processors, consumers, andwaste managers involved in fertilization, food, feed and bioenergy production. Better coordination of materialexchanges at the local scale can facilitate more efficient resource use. Here, we present a new agent-based model,“Flows in Agro-food...
Article
Full-text available
Crossed fertilization additions are a common tool to assess nutrient interaction in a given ecosystem. Such fertilization experiments lead to the definition of nutrient interaction categories: e.g. simultaneous co-limitation, single resource response, etc. (Harpole et al., 2011). However, the implications of such categories in terms of nutrient int...
Poster
Full-text available
Carbon sequestration in soils, vegetation and wood products has to be considered in territorial climate policies since 2016, as the French Government's Climate Plan aims to achieve carbon neutrality by 2050. Here we present a diagnostic tool (https://www.territoires-climat.ademe.fr/actualite/loutil-aldo-pour-une-premiere-estimation-de-la-sequestrat...
Technical Report
Full-text available
http://institut.inra.fr/Missions/Eclairer-les-decisions/Etudes/Toutes-les-actualites/Stocker-4-pour-1000-de-carbone-dans-les-sols-francais
Article
Full-text available
The debate about organic farming productivity has often focused on its relative crop yields compared with conventional farming. However, conversion to organic farming not only results in changes in crop yields, but also in changes in the types of crops grown. To date, the effects of such changes on global crop production have never been systematica...
Article
Full-text available
L’agriculture nécessite de mieux boucler les cycles des éléments minéraux localement afin de réduire sa dépendance à des ressources externes, souvent dépendantes de gisements non renouvelables. Ce recyclage de la biomasse et des nutriments se fait via des flux circulaires de matière, notamment de fertilisants, de produits végétaux, d’aliments du bé...
Chapter
Bouclage des cycles: des approches renouvelées et plus englobantes des cycles biogéochimiques
Article
Full-text available
Une analyse bibliométrique de la recherche française sur les sols a été effectuée par le Groupe Thématique sur les sols d'AllEnvi, à la fois sur le plan quantitatif (nombre d'articles, taux de citations) et qualitatif (place de la recherche française sur la scène internationale, type de collaborations nationales inter-organismes ou internationales,...
Article
Full-text available
Although simulation models have been developed to describe P dynamics in cropped soils, they are designed for the plow layer, in which soil P is assumed to be homogeneously distributed. They are not suitable for soils cropped under no-till systems (NT), in which P distribution in the arable layer is strongly stratified. This work was undertaken to...
Presentation
Full-text available
Modélisation, simulation et prévision de la dynamique à long terme du P phytodisponible du sol en fonction des pratiques agricoles Il s'agit d'une synthèse de travaux provenant de l'exploitation de dispositifs de longue durée, toujours en cours ou arrêtés mais soigneusement archivés. Ces essais ont été menés sur la fertilisation phosphatée dans les...
Chapter
Full-text available
Biogeochemical cycles of carbon (C), nitrogen (N), phosphorus (P) are naturally coupled in terrestrial ecosystems by elemental stoichiometry of plant autotrophy and of soil biological heterotrophy. The shift from natural to cropped intensive systems lead to major changes in crops land-use, nutrient availability, soil management. This chapter presen...
Chapter
Full-text available
Biogeochemical cycles of carbon (C), nitrogen (N), and phosphorus (P) are naturally coupled in terrestrial ecosystems by elemental stoichiometry of plant autotrophy and of soil biologic heterotrophy. The shift from natural to cropped intensive systems led to major changes in crop land use, nutrient availability, and soil management. This chapter pr...
Article
Combatting climate change has risen to the top of the international policy discourse. Effective governance necessitates the generation of concise information on the costs-effectiveness of policy instruments aimed at reducing atmospheric greenhouse gas (GHG) emissions. The marginal abatement cost curve (MACC) approach is a framework commonly used to...
Chapter
Full-text available
• Les engrais minéraux phosphatés sont issus de la transformation physico-chimique de la roche phosphatée, matière première d’origine fossile et non renouvelable • Le risque de pénurie d’approvisionnement est possible avec la raréfaction de cette ressource, une production d’engrais contrôlée par très peu de pays, et un marché des phosphates de plus...
Article
Full-text available
Phosphorus (P) is an essential element for plant growth. Low P availability in soils is likely to limit crop yields in many parts of the world, but this effect has never been quantified at the global scale by process-based models. Here we attempt to estimate P limitation in 3 major cereals worldwide for the year 2000 by combining information on soi...
Article
Sowing depth can affect seedling establishment due to poor remobilization and translocation of seed reserves towards newly growing maize seedling sinks. A pot study was conducted to investigate the relationship between seedling phytomass and phosphorus (P) source -sink as affected by three sowing depths. Uniform maize seeds were planted in plastic...
Book
La région Nouvelle-Aquitaine est l’une des plus grandes régions agricoles en Europe. Elle abrite une agriculture très diversifiée avec de nombreuses productions emblématiques comme le vin et le cognac, le maïs et le blé ou encore les fruits, et un élevage de haute qualité. Le secteur agricole sera d’autant plus affecté par le changement climatique...
Poster
Full-text available
The debate on whether Organic Agriculture can feed the world is highly controversial. Currently most studies have focused on the relative productivity of organic vs conventional farming at the crop level, without taking into consideration nutrient availability. Our main objective is to assess the supply of organic products under scenarios of dramat...
Article
The agriculture, forestry and other land use sector are responsible for 24% (10–12 Pg CO2e per year) of anthropogenic greenhouse gas (GHG) emissions worldwide, with concomitant opportunities for mitigation. A scientific panel used deliberative methods to identify ten technical measures comprising 26 sub-measures to reduce GHG emissions from agricul...
Article
Full-text available
Cropland use activities are major drivers of global environmental changes and of farming system resilience. Rotating crops is a critical land-use driver, and a farmers’ key strategy to control environmental stresses and crop performances. Evidence has accumulated that crop rotations have been dramatically simplifed over the last 50 years. In contra...
Presentation
Full-text available
La gestion de la nutrition phosphatée des cultures est une problématique importante en agriculture. Le phosphore (P) est un élément nutritif indispensable aux végétaux et non substituable. Le phosphore est souvent le nutriment le moins disponible dans le sol en raison de ses fortes interactions avec les constituants du sol et de la faible solubilit...
Article
Most soil tests for available phosphorus (P) perform rather poorly in predicting crop response. This study was set up to compare different established soil tests in their capacity to predict crop response across contrasting types of soil. Soil samples from long-term field experiments, the oldest >100 years old, were collected in five European count...
Article
Full-text available
An increase in soil organic carbon stock can contribute to mitigate climate change. International negotiation mechanisms and initiatives call for countries to consider land use change and soil management to achieve atmospheric CO2 removal through storage in terrestrial systems (http://4p1000.org/). As a result, policy makers raised a specific opera...
Article
Full-text available
Climate-smart cropping systems should be designed with three objectives: reducing greenhouse gas (GHG) emissions, adapting to changing and fluctuating climate and environment, and securing food production sustainably. Agriculture can improve the net GHG emissions balance via three levers: less N2O, CH4 and CO2 emissions, more carbon storage, and gr...
Article
Full-text available
Phosphorus (P) availability in soils limits crop yields in many regions of the world, while excess of soil P triggers aquatic eutrophication in other regions. Numerous processes drive the global spatial distribution of P in agricultural soils, but their relative roles remain unclear. Here, we combined several global datasets describing these driver...
Article
The intensification of agriculture in Europe has contributed significantly to the decline of mixed crop-livestock farms in favour of specialised farms. Specialisation, when accompanied by intensive farming practices, leaves farms poorly equipped to sustainably manage by-products of production, capture beneficial ecological interactions, and adapt i...
Article
From a global perspective, agricultural ecosystems are challenged by a requirement to produce more outputs with lower inputs, simultaneously to meet the demand for more food and reduce the global environmental impact of agriculture. A key task is to develop and share new ecological concepts of agriculture as a means to improve nutrient recycling, p...