A5037619260- Plant responses to elevated CO2
- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics
- Atmospheric chemistry and aerosols
- Soil Carbon and Nitrogen Dynamics
- Remote Sensing in Agriculture
- Climate variability and models
- Horticultural and Viticultural Research
- Meteorological Phenomena and Simulations
- Forest ecology and management
- Remote Sensing and LiDAR Applications
- Tree-ring climate responses
- Wheat and Barley Genetics and Pathology
- Crop Yield and Soil Fertility
- Wind and Air Flow Studies
- Bioenergy crop production and management
- Marine and coastal ecosystems
- Peatlands and Wetlands Ecology
- Air Quality and Health Impacts
- Fire effects on ecosystems
- Atmospheric Ozone and Climate
- Greenhouse Technology and Climate Control
- Clay minerals and soil interactions
- Soil and Unsaturated Flow
- Plant Ecology and Soil Science
Istituto di Biometeorologia
2014-2025
Aix-Marseille Université
2017-2025
Institut de Recherche pour le Développement
2025
Centre National de la Recherche Scientifique
2025
University of Bari Aldo Moro
2024
National Research Council
2015-2024
National Academies of Sciences, Engineering, and Medicine
1993-2023
University of Florence
1992-2020
Institut d'Etudes Avancées Paris
2020
Ospedale di Livorno
2020
Abstract This paper discusses the advantages and disadvantages of different methods that separate net ecosystem exchange (NEE) into its major components, gross carbon uptake (GEP) respiration ( R eco ). In particular, we analyse effect extrapolation night‐time values daytime; this is usually done with a temperature response function derived from long‐term data sets. For analysis, used 16 one‐year‐long sets dioxide measurements European US‐American eddy covariance networks. These sites span...
Field‐chamber measurements of soil respiration from 17 different forest and shrubland sites in Europe North America were summarized analyzed with the goal to develop a model describing seasonal, interannual spatial variability as affected by water availability, temperature, site properties. The analysis was performed at daily monthly time step. With step, relative content upper layer expressed fraction field capacity good predictor all sites. Among variables tested, those related...
Abstract The European CARBOEUROPE/FLUXNET monitoring sites, spatial remote sensing observations via the EOS‐MODIS sensor and ecosystem modelling provide independent complementary views on effect of 2003 heatwave biosphere's productivity carbon balance. In our analysis, these data streams consistently demonstrate a strong negative anomaly primary during summer 2003. FLUXNET eddy‐covariance indicate that drop in was not primarily caused by high temperatures (‘heat stress’) but rather...
Abstract Eddy covariance and sapflow data from three Mediterranean ecosystems were analysed via top‐down approaches in conjunction with a mechanistic ecosystem gas‐exchange model to test current assumptions about drought effects on respiration canopy CO 2 /H O exchange. The sites include two nearly monospecific Quercus ilex L. forests – one karstic limestone (Puéchabon), the other fluvial sand access ground water (Castelporziano) typical mixed macchia (Arca di Noè). Estimates of derived...
Observations on the net carbon exchange of forests in European Mediterranean region, measured recently by eddy covariance method, have revived interest a phenomenon first characterized agricultural and forest soils East Africa 1950s 1960s H. F. Birch now often referred to as "Birch effect." When become dry during summer because lack rain, is common regions with climate, or are dried laboratory controlled conditions, then rewetted precipitation irrigation, there burst decomposition,...
In November 2015, the FLuorescence EXplorer (FLEX) was selected as eighth Earth Explorer mission of European Space Agency. The tandem concept will provide measurements at a spectral and spatial resolution enabling retrieval interpretation full chlorophyll fluorescence spectrum emitted by terrestrial vegetation. This paper provides overview scientific goals, key objectives related to fluorescence, requirements guaranteeing fitness for purpose resulting data set. We present design time...
Abstract Terrestrial gross primary production (GPP) is an important parameter to explore and quantify carbon fixation by plant ecosystems at various scales. Remote sensing (RS) offers a unique possibility investigate GPP in spatially explicit fashion; however, budgeting of terrestrial cycles based on this approach still remains uncertain. To improve calculations, spatio‐temporal variability must be investigated more detail local regional The overarching goal study enhance our knowledge how...
Diet is one of the main factors that affects composition gut microbiota. When people move from a rural environment to urban areas, and experience improved socio-economic conditions, they are often exposed "globalized" Western type diet. Here, we present preliminary observations on metagenomic scale microbial changes in small groups African children belonging same ethnicity living different environments, compared area Florence (Italy). We analyzed dietary habits and, by pyrosequencing 16S...
Summary A new design of free‐air CO 2 enrichment (FACE) is presented that has been used to expose a poplar plantation elevated atmospheric concentrations in other‐wise unaltered conditions, the open. This system releases pure at high velocity, through large number small gas jets, causing rapid mixing between and air. The theoretical practical aspects this are described, with emphasis on fluid mechanics air–CO sonic jets. Field performance data, including spectral analysis short‐term...
Rising concentrations of atmospheric carbon dioxide have been predicted to stimulate the growth forest trees. However, long‐term effects on trees growing maturity and canopy closure while exposed elevated CO 2 never examined. We compared tree ring chronologies Mediterranean Quercus ilex which continuously (around 650 μmol mol –1 ) since they were seedlings, near two separate natural springs with those from at nearby ambient‐CO ‘control’ sites. Trees grown under high for 30 years (1964–93)...
This paper demonstrates that atmospheric inversions of CO 2 are a reliable tool for estimating regional fluxes. We compare results an inversion over 18 days and 300 × km domain in southwest France against independent measurements fluxes from aircraft towers. The used concentration towers while the data included 27 transects 5 flux reduces mismatch between prior fluxes, improving both spatial temporal structures. present mesoscale improves by 30% distances few hundreds around measurement locations.
Although cold hardiness is known to be a major determinant of tree species distribution, its dynamics and the factors that regulate it remain poorly understood. Variation in carbohydrate concentration, from dormancy induction until bud burst, were investigated populations two deciduous (Quercus robur L. Quercus pubescens Willd.) one evergreen ilex L.) European oak. Mean values January –56, –45 –27 °C for Q. robur, ilex, respectively. Soluble concentrations closely related instantaneous...