A5077234750- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Soil Carbon and Nitrogen Dynamics
- Remote Sensing in Agriculture
- Remote Sensing and LiDAR Applications
- Soil Management and Crop Yield
- Forest Management and Policy
- Soil erosion and sediment transport
- Environmental and biological studies
- Agroforestry and silvopastoral systems
- Growth and nutrition in plants
- Soil and Unsaturated Flow
- Tree-ring climate responses
- Atmospheric and Environmental Gas Dynamics
- Fire effects on ecosystems
- Agriculture and Rural Development Research
- Leaf Properties and Growth Measurement
- Seedling growth and survival studies
- Oil Palm Production and Sustainability
- Ecology and Vegetation Dynamics Studies
- Agricultural and Food Sciences
- Irrigation Practices and Water Management
- Climate variability and models
- Conservation, Biodiversity, and Resource Management
- Soil Geostatistics and Mapping
Ecologie fonctionnelle & biogéochimie des sols & des agro-systèmes
2016-2025
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2015-2025
Kasetsart University
2022-2025
Institut Agro Montpellier
2017-2023
Agropolis International
2007-2023
Université de Montpellier
2017-2023
Institut de Recherche pour le Développement
2012-2023
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2021-2023
L'Institut Agro
2022-2023
Universidade Federal de Lavras
2022-2023
Almost half of the total organic carbon (C) in terrestrial ecosystems is stored forest soils. By altering rates input or release C from soils, management activities can influence soil stocks forests. In this review, we synthesize current evidence regarding influences 13 common practices on stocks. Afforestation former croplands generally increases stocks, whereas grasslands and peatlands, are unchanged even reduced following afforestation. The conversion primary forests to secondary reduces...
Summary Climate models predict that the frequency, intensity and duration of drought events will increase in tropical regions. Although water withdrawal from deep soil layers is generally considered to be an efficient adaptation drought, there little information on role played by roots forests. Tropical Eucalyptus plantations managed short rotation cycles are simple forest ecosystems may provide insight into use trees The contribution made withdrawn required for evapotranspiration was...
Understanding how plants are constructed—i.e., key size dimensions and the amount of mass invested in different tissues varies among individuals—is essential for modeling plant growth, carbon stocks, energy fluxes terrestrial biosphere. Allocation patterns can differ through ontogeny, but also coexisting species adapted to environments. While a variety models dealing with biomass allocation exist, we lack synthetic understanding underlying processes. This is partly due suitable data sets...
Abstract Tropical vegetation is a major source of global land surface evapotranspiration, and can thus play role in hydrological cycles atmospheric circulation. Accurate prediction tropical evapotranspiration critical to our understanding these processes under changing climate. We examined the controls on at 21 pan‐tropical eddy covariance sites, conducted comprehensive systematic evaluation 13 models assessed ability scale up model estimates for test region Amazonia. Net radiation was...
Abstract Drought control over conductance and assimilation was assessed using eddy flux meteorological data monitored during four summer periods from 1998 to 2001 above a closed canopy of the Mediterranean evergreen oak tree Quercus ilex . Additional discrete measurements soil water content predawn leaf potential were used characterize severity drought. Canopy estimated through big‐leaf approach Penman–Monteith by inverting latent heat fluxes. The gross primary production ( GPP ) adding...
In this study we examined ecosystem respiration (RECO) data from 104 sites belonging to FLUXNET, the global network of eddy covariance flux measurements. The goal was identify main factors involved in variability RECO: temporally and between as affected by climate, vegetation structure plant functional type (PFT) (evergreen needleleaf, grasslands, etc.). We demonstrated that a model using only climate drivers predictors RECO failed describe part temporal dependency on gross primary...
Abstract. This study reports carbon and water fluxes between the land surface atmosphere in eleven different ecosystems types Sub-Saharan Africa, as measured using eddy covariance (EC) technology first two years of CarboAfrica network operation. The for which data were available ranged mean annual rainfall from 320 mm (Sudan) to 1150 (Republic Congo) include a spectrum vegetation (or cover) (open savannas, woodlands, croplands grasslands). Given shortness record, EC analysed across rather...
Eucalyptus grandis (W. Hill ex Maiden) leaf traits and tree growth were studied over 3 years after the establishment of two adjacent complete randomized block designs in southern Brazil. In a nitrogen (N) input experiment, treatment with application 120 kg N ha−1 was compared to control without addition, potassium (K) experiment K addition 116 ha−1. Young leaves tagged 9 months planting estimate effect fertilizations on lifespan. Leaf mass, specific area nutrient concentrations measured...
Whilst the relationships between growth strategies and leaf traits are well established in functional plant ecology, little attention has been paid to root very deep soil layers. The objective of our study was compare vertical velocity above- belowground exploration environment for one fastest-growing tree species. Fine roots were studied a chronosequence intensively-managed Eucalyptus plantations on highly weathered soils. Here we show that front depth accurately predicted at 85% mean...
Abstract Although vast areas in tropical regions have weathered soils with low potassium ( K ) levels, little is known about the effects of supply on photosynthetic physiology trees. This study assessed and sodium Na diffusional biochemical limitations to photosynthesis E ucalyptus grandis leaves. A field experiment comparing treatments receiving (+ or a control treatment C was set up ‐deficient soil. The net CO 2 assimilation rates were twice as high + 1.6 times higher than result lower...
Although highly weathered soils cover considerable areas in tropical regions, little is known about exploration by roots deep soil layers. Intensively managed Eucalyptus plantations are simple forest ecosystems that can provide an insight into the belowground growth strategy of fast-growing trees. Fast layers eucalypt fine may contribute to achieving a gross primary production (GPP) among highest world for forests. Soil down depth 10 m was studied throughout complete cycle plantations....