Frédéric Gay

ORCID: 0000-0002-7624-8489
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About
Contact & Profiles
Research Areas
  • Soil Carbon and Nitrogen Dynamics
  • Oil Palm Production and Sustainability
  • Conservation, Biodiversity, and Resource Management
  • Forest ecology and management
  • Plant Water Relations and Carbon Dynamics
  • Plant biochemistry and biosynthesis
  • Nematode management and characterization studies
  • Soil and Unsaturated Flow
  • Coffee research and impacts
  • Irrigation Practices and Water Management
  • Agriculture and Rural Development Research
  • GABA and Rice Research
  • Remote Sensing in Agriculture
  • Cocoa and Sweet Potato Agronomy
  • Insect and Arachnid Ecology and Behavior
  • Genetics and Plant Breeding
  • Invertebrate Taxonomy and Ecology
  • Sustainable Agricultural Systems Analysis
  • Soil and Land Suitability Analysis
  • Agriculture, Land Use, Rural Development
  • Greenhouse Technology and Climate Control
  • Soil erosion and sediment transport
  • Forest Biomass Utilization and Management
  • Pineapple and bromelain studies
  • Soil Geostatistics and Mapping

Institut Agro Montpellier
2017-2025

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2025

ABSys
2021-2025

Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2013-2025

Université de Montpellier
2017-2025

Institut Agronomique Méditerranéen de Montpellier
2021-2025

Centre International deHautes Etudes Agronomiques Méditerranéennes
2021-2025

Agropolis International
2013-2023

Ecologie fonctionnelle & biogéochimie des sols & des agro-systèmes
2013-2023

Institut de Recherche pour le Développement
2017-2023

The resistance and resilience of soil microbial communities to an environmental disturbance are poorly documented, due the lack on onfield diachronic experiments, limiting our ability design adapted agroecological practices. This is especially true in rubber plantations, one most planted tree tropical areas. We aimed understand (1) how disturbances occurring during replanting phase affect microbiome, (2) agricultural practices combining legumes cover crops logging residues shape community...

10.1007/s00248-025-02506-3 article EN cc-by-nc-nd Microbial Ecology 2025-03-13

Oil palm smallholders often have difficulty implementing good agricultural practices and replanting, tend to obtain low yields compared corporate plantations. A frequent strategy improve the sustainability of smallholder production systems is sustainable intensification, aimed at increasing land productivity farmers' incomes. To facilitate many leading public private initiatives require farmers join farmer organisations as a precondition for certification assistance, with objective achieving...

10.1016/j.agsy.2023.103801 article EN cc-by Agricultural Systems 2023-11-22

Abstract Rubber plantations have rapidly replaced natural forests (NFs) in Mainland Southeast Asia, yet the relevant impacts on terrestrial carbon cycle remain uncertain especially with an increase drought frequency. Our study compared eddy‐covariance measurements of and water fluxes from two rubber monoculture (at a northern marginal site southern traditional plantation site) second‐growth NF between 2015 2018, their responses to prolonged during 2015/2016. The had higher light use...

10.1029/2022jg006840 article EN Journal of Geophysical Research Biogeosciences 2022-05-01

SUMMARY Fertilization of rubber plantations has been poorly documented despite the huge economic and ecological impact this tropical perennial crop, especially in Southeast Asia. The main objective paper is to provide information on fertilization practices smallholders Thailand investigate drivers these practices. Data were sourced from individual interviews conducted with 414 smallholders. results showed that 99.4% mature fertilized either chemical or organic fertilizers, both. average dose...

10.1017/s0014479717000400 article EN Experimental Agriculture 2017-07-31

Fine roots (FR) play a major role in the water and nutrient uptake of plants contribute significantly to carbon cycles ecosystems through their annual production turnover. FR growth dynamics were studied understand endogenous exogenous factors driving these processes 14 year-old plantation rubber trees located eastern Thailand. observed using field rhizotrons from Oct. 2007 2009. This period covered two complete dry seasons (Nov.-Mar.) rainy (Apr.-Oct.), allowing us study effect rainfall...

10.3389/fpls.2013.00538 article EN cc-by Frontiers in Plant Science 2013-01-01

Climate change and fast extension in climatically suboptimal areas threaten the sustainability of rubber tree cultivation. A simple framework based on reduction factors potential transpiration was tested to evaluate water constraints seasonal tropical sub-humid climates, according pedoclimatic conditions. We selected a representative, mature stand drought-prone area. Tree transpiration, evaporative demand soil availability were measured every day over 15 months. The results showed that basic...

10.3389/fpls.2014.00753 article EN cc-by Frontiers in Plant Science 2015-01-06

Abstract Rubber tree plantations ( Hevea brasiliensis ) cover large areas in the tropics. In historical producing regions like South Thailand, rubber has been planted by smallholders for three successive rotations lasting a total of 75 years. Despite possible consequences on topsoil, long‐term impacts repeated soil quality remain unknown. This study aims to better understand how various factors linked land use and change affect topsoil physico‐chemical properties organic carbon (SOC) thermal...

10.1002/ldr.4171 article EN Land Degradation and Development 2021-12-19

Selection for drought-tolerant clones has become a major challenge in rubber breeding programs undertaken to ensure the sustainability of natural production, as plantations are expanding drought-prone areas. Xylem vulnerability cavitation is trait related drought-induced mortality. It can be rapidly evaluated without subjecting plant materials drought stress, making it useful large-scale screening tolerance near future. We first compared most widely used techniques measuring (air...

10.20870/jph.2015.e001 article EN Journal of Plant Hydraulics 2015-05-21

Latex, the cytoplasm of laticiferous cells localized in inner bark rubber trees (Hevea brasiliensis Müll. Arg.), is collected by tapping bark. Following tapping, latex flows out trunk and regenerated, whereas untapped trees, there no natural exudation. It still unknown whether carbohydrates used for regeneration tapped coming from recent photosynthates or stored carbohydrates, former case, it expected that carbon isotope composition will vary seasonally, be more stable. Temporal variations...

10.1093/treephys/tpv070 article EN Tree Physiology 2015-09-09

This study investigates spatial-temporal trends in N2O emissions from coffee production systems Costa Rica with a focus on the effects of nitrogen fertilisation, topography and soil type. is done by combining (i) multi-year continuous dynamic chamber measurements sites different fertilisation levels, (ii) static taken along typical sloping field (iii) laboratory incubation experiment nutrient addition to types. In laboratory, additions included standard NPK fertiliser, ammonium nitrate...

10.1016/j.agee.2022.108257 article EN cc-by Agriculture Ecosystems & Environment 2022-11-22
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