Tiphaine Chevallier

Tiphaine Chevallier
Institute of Research for Development | IRD · 210 - Functional Ecology and Biochemistry of Soils and Agroecosystems (Eco&Sols)

PhD, HDR

About

164
Publications
51,921
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3,174
Citations
Additional affiliations
January 2005 - present
Institute of Research for Development
Position
  • CR

Publications

Publications (164)
Article
Full-text available
Agroforestry systems have been much studied for their potential to store soil organic carbon (SOC). However, few data are available on their specific impact on potential SOC mineralization, especially at depth in subsoils. Moreover, many soils of the world, especially in arid and semi‐arid environments, also contain large stocks of soil inorganic c...
Article
Rural development projects to develop sustainable agriculture need to be assessed before engagingsmallholder farmers at large scale. Data on agricultural systems to produce food, provide income forsmallholders and reduce greenhouse-gas (GHG) emissions are scarce in Sub-Saharan Africa countries.Here, we assessed the potential of agroecological pract...
Article
Soil organic carbon (C) and nitrogen (N) contents have an essential role in soil fertility, but they may be affected by salinity, which is especially responsible for land degradation in arid and semiarid regions. The objective of this work was to study the ability of visible and near infrared diffuse reflectance spectroscopy (VNIRS) to predict soil...
Article
Given the importance of soil organic carbon (SOC) stocks and their dynamics in the regulation of climate change, understanding the mechanisms of SOC protection from decomposition is crucial. It is recognized that soil aggregates can provide effective protection of organic carbon from microbial decomposition. Currently, there is no systematic method...
Article
Full-text available
Les sols hébergent une importante biodiversité. Ils sont essentiels pour nourrir l'humanité et jouent un rôle fondamental dans les cycles biogéochimiques de la planète. Alors qu'à l'échelle du globe, un tiers des sols sont dégradés, comprendre les processus écologiques qui s'y déroulent pour mieux les préserver et les restaurer est un enjeu majeur....
Preprint
Full-text available
Pre-print open for comments until July 4, here : https://egusphere.copernicus.org/preprints/2022/egusphere-2022-115/ Thank you for your comments ! Abstract : Identifying the drivers of soil organic carbon (SOC) stock changes is of utmost importance to contribute to global challenges like climate change, land degradation, biodiversity loss or food...
Data
DATA4C+ is a thesaurus classifying and defining land management practices in agriculture and forestry for soil carbon storage. DATA4C+ thesaurus is focussed on land management practices identified in the scientific literature as drivers of soil organic carbon (SOC) changes. DATA4C+ thesaurus aim was to fill the gap of lack of a comprehensive thesau...
Article
Article publié dans The Conversation : https://theconversation.com/une-bd-pour-se-familiariser-a-lagroecologie-174050
Article
Within agroforestry systems, trees greatly contribute to soil carbon (C) sequestration. We still know little about how this contribution varies according to tree species. Here, we quantified the soil C content derived from three main tree species, Eucalyptus robusta, Coffea arabica and Citrus clementina, used in rainfed rice-based agroforestry in t...
Article
Mid-Infrared reflectance spectroscopy (MIRS, 4000–400 cm-1) is being considered to provide accurate estimations of soil inorganic carbon (SIC) contents, based on prediction models when the test dataset is well represented by the calibration set, with similar SIC range and distribution and pedological context. This work addresses the case where the...
Conference Paper
Full-text available
Continental carbon (C) sequestration plays a major role in climate change resilience, mitigation, and agro-ecological intensification. Soil Moisture Active Passive Global Daily Carbon Net Ecosystem Exchange dataset (SMAP L4) is used for monitoring daily terrestrial C stocks, given the high potential of semiarid areas for Sustainable Goals achieveme...
Conference Paper
Continental carbon (C) sequestration plays a major role in climate change resilience, mitigation, and agro-ecological intensification. Soil Moisture Active Passive Global Daily Carbon Net Ecosystem Exchange dataset (SMAP L4) is used for monitoring daily terrestrial C stocks, given the high potential of semiarid areas for Sustainable Goals achieveme...
Poster
Full-text available
Le secteur de l'agriculture, de la forêt et des autres utilisations des terres (AFOLU pour l'anglais Agriculture, Forestry and Other Land Uses) est émetteur en gaz à effet de serre mais c'est également un secteur pour lequel des investissements peuvent inverser la tendance. Pourtant les actions concrètes avec des résultats chiffrés sont rares du fa...
Presentation
Full-text available
Because of its multiple co-benefits, soil organic carbon is at the crossroads of several Sustainable Development Goals, but also of the United Nations Conventions on Climate, Biodiversity and Desertification. Launched during COP 25 in Paris, the 4 for 1000 Initiative is one of the major initiatives of this international agenda that involves multi-s...
Article
Full-text available
Soil organic carbon (SOC) is essential for the productivity of agroecosystems and for mitigating climate change. Because the SOC contents of sandy soils are usually small, the effects of agricultural management upon SOC stocks in such soils have been insufficiently studied. In West sub-arid Africa, the coarse-textured soils (mostly Arenosols) are d...
Article
Full-text available
Eight years of studying coffee ecophysiology and monitoring ecosystem services (ES) in a large coffee farm in Costa Rica revealed several practical recommendations for farmers and policy makers. The cropping system studied within our collaborative observatory (Coffee-Flux) corresponds to a coffee-based agroforestry system (AFS) under the shade of l...
Data
Dataset used for a paper published in Regional Environmental Change (2021) "Estimates of carbon stocks in sandy soils cultivated under local management practices in Senegal’s groundnut basin". Data comprised Sheet 1: Measured data (total carbon content, pH in water, pH in 1M KCl, 5 textural fractions for soil samples collected at 0-10 cm and 10-3...
Presentation
Full-text available
vPICO presented at session SSS 9.7 "Impact of conventional agriculture and organic farming on soil functions"
Conference Paper
Full-text available
Soil carbon (C), now more than ever, attracts the interest of the scientific community for its importance in combating climate change and achieving food security. As a result, its key role in agricultural soil fertility and in anthropogenic greenhouse gas emissions mitigation is high on international agendas. A key issue regarding the linkage betwe...
Article
Mid-infrared reflectance spectroscopy (MIRS, 4000–400 cm⁻¹) is being considered to provide accurate estimations of soil properties, including soil organic carbon (SOC) and soil inorganic carbon (SIC) contents. This approach has mainly been demonstrated by using datasets originating from the same area A, with similar geopedological conditions, to bu...
Article
The assessment of the impacts of land-use and management on soil organic carbon (SOC) dynamics is a major environmental concern, as the soil carbon cycle underpins key ecosystem services. However, assessments based on short-term SOC dynamics face methodological and experimental difficulties. Hurisso et al. (2016) proposed a method to assess SOC dyn...
Article
Full-text available
The Paris Climate Agreements and Sustainable Development Goals, signed by 197 countries, present agendas and address key issues for implementing multi-scale responses for sustainable development under climate change—an effort that must involve local, regional, national, and supra-national stakeholders. In that regard, Continental Carbon Sequestrati...
Article
Full-text available
Aims Mineral-associated organic matter, mainly derived from microbial by-products, persists longer in soil compared to particulate organic matter (POM). POM is highly recalcitrant and originates largely from decomposing root and shoot litter. Theory suggests that root traits and growth dynamics should affect carbon (C) accumulation into these diffe...
Article
Mid-infrared reflectance spectroscopy (MIRS) is time- and cost-effective. It was used for quantifying soil inorganic carbon (SIC) concentration in France based on a national library, and performances were evaluated on an independent regional set. Our objective was to improve the accuracy of MIRS predictions based on common multivariate regression,...
Conference Paper
Full-text available
Soil organic carbon (SOC) is a key element in the functioning of agrosystems. It ensures soil quality and productivity of cultivated systems in the Sahelian region. This study uses Rock-Eval pyrolysis to examine how cultural practices impact SOC quantity and quality of cultivated sandy soils in the Senegal groundnut basin. Such thermal analysis met...
Article
Full-text available
Cet article présente une exposition, "Sols fertiles, vies secrètes", conçue à l'initiative du Sénat pour sensibiliser le grand public aux enjeux de la connaissance et de la préservation de nos ressources en sol. Exposée pour la première fois dans l'Orangerie des jardins du Luxembourg en 2014, sa conception et sa diffusion a mis à contribution de no...
Article
Une belle exposition montée en 1990, exposée en 1998 lors du XVIe Congrès Mondial de Science du Sol à Montpellier, a continué de voyager après les années 2000. Elle s'est retrouvée à Alès en 2018 pour une exposition pour les jeunes et grand public. Deux scientifiques du sol, invités à donner leur opinion sur le contenu des panneaux, ont réalisé com...
Poster
Full-text available
DATA4C+ (2019-2021) is a research project funded by the French Research National Agency (ANR), coordinated by Cirad and implemented by the consortium Cirad-INRA-IRD. DATA4C+ aims meeting the growing need to assess the impact of agricultural practices on soil carbon. Stakes are high to reference data and meta-data in databases to have a global view....
Article
Full-text available
La sensibilisation du grand public, et en particulier des plus jeunes, à l’importance des sols pour notre environnement et le fonctionnement de nos sociétés, est une des clefs de leur préservation. Le programme de recherche GESSOL « Gestion durable des sols » du ministère en charge de l’écologie a élaboré et diffusé, entre 2010 et 2018, une brochur...
Article
Full-text available
Soil organic carbon (SOC) constitutes the largest terrestrial C stock, particularly in the Andosols of volcanic areas. Quantitative information on distribution of SOC stocks is needed to construct a baseline for studying temporal changes in SOC. The spatial variation of soil short-range-order minerals such as allophane usually explains the variabil...
Book
Full-text available
L’agroécologie est, de manière croissante, évoquée au cœur des discussions internationales sur le devenir des systèmes agricoles et alimentaires dans le monde, en apparaissant comme une des réponses pertinentes aux grands défis globaux en matière de développement économique et social et d’environnement, largement reflété́ dans les Objectifs de Déve...
Preprint
Preprint in Soil Discussion: Soil organic carbon (SOC) constitutes the largest terrestrial C stock, especially in the Andosols of volcanic areas. In Costa Rica, in a 1 km2 basin covered by coffee agroforestry, SOC stocks were measured by MIR spectrometry from surface down to 200-cm depth to 24 to 72 kgC m-2. Andic soil properties explained this hig...
Article
Land management and global warming affect the dynamics of soil organic matter (SOM) and nutrients such as nitrogen (N) and phosphorus (P). The effects depend on the type of SOM and on the temperature sensitivity of the SOM mineralization. There is insufficient data on tropical soils, which generally have low nutrient availability, to be able to pre...
Article
The assessment of soil quality is a scientific issue that has been widely debated in the literature for the last twenty years. We developed the Biofunctool® framework to assess soil quality based on an integrative approach that accounts for the link between the physico-chemical properties and the biological activity of soils. Biofunctool® consists...
Article
Full-text available
The aim of this study was to assess how soil organic C (SOC) stocks and earthworm communities were modified in agroforestry systems compared to treeless control plots and within the agroforestry plots (tree rows vs alleys). We used a network of 13 silvoarable agroforestry sites in France along a north/south gradient. Total earthworm abundance and b...
Article
Full-text available
Huit ans de travaux de recherche sur les services écosystémiques dans une grande ferme caféière du Costa Rica (observatoire collaboratif Coffee-Flux, en système agro-forestier à base de caféiers sous de grands arbres d'Erythrina poeppigiana, surface projetée de couronne de l'ordre de 16 %) ont suggéré plusieurs applications pour les agriculteurs et...
Conference Paper
Full-text available
Les chercheurs de l'Initiative "4 pour 1000" réunis à Sète les 7 et 8 novembre 2018 lors de l’atelier "La recherche française autour du programme international de recherche de l’initiative 4 pour 1000 : les sols pour la sécurité alimentaire et le climat" ont lancé un appel pour un "programme scientifique ambitieux" pour la mise en œuvre du volet re...
Poster
Full-text available
Object In temperate regions, silvoarable systems associating parallel tree rows and annual intercrops, as well as silvopastoral systems combining trees, pastures and livestock, are the most widespread types of agroforestry systems. According to their ecological category (Bouché, 1977), earthworms are involved in numerous ecosystem services such as...
Poster
Full-text available
The capacity of soils to mitigate climate change through carbon sequestration depends on the quantitative but also the qualitative changes in soil organic carbon (SOC). In particular, the stability of SOC has to be considered to evaluate the long-term fate of the soil carbon stocks. The aim of this study was to assess the accurateness of thermal an...
Article
Full-text available
The rapid expansion of perennial crops is a major threat to biodiversity in Southeast Asia. The biodiversity losses related to the conversion of forest lands to oil palm or rubber plantations (RP) are well documented by recent studies. However, the impact of the conversion from intensively managed annual crops to perennial crops on soil biodiversit...
Article
Organic carbon saturation in soils refers to the theoretical maximum soil organic carbon (SOC) that can be associated with and stabilized on fine silt plus clay particles (F < 20 μm). We reviewed the literature dealing with SOC distribution between soil fractions to evaluate carbon saturation for tropical soils and estimate the C storage potential...
Article
Full-text available
The priming effect (PE) in soil, when induced by a fresh carbon supply, is believed to result from two different mechanisms, "stoichiometric decomposition" and "nutrient mining", and contributes to either long-term SOM stabilization or depletion. Understanding how to affect the balance between both mechanisms can provide valuable insight into agroe...
Article
Full-text available
Agroforestry is an increasingly popular farming system enabling agricultural diversification and providing several ecosystem services. In agroforestry systems, soil organic carbon (SOC) stocks are generally increased, but it is difficult to disentangle the different factors responsible for this storage. Organic carbon (OC) inputs to the soil may be...