A5057958121- Plant Water Relations and Carbon Dynamics
- Plant responses to elevated CO2
- Atmospheric chemistry and aerosols
- Forest ecology and management
- Atmospheric and Environmental Gas Dynamics
- Soil Carbon and Nitrogen Dynamics
- Peatlands and Wetlands Ecology
- Soil and Water Nutrient Dynamics
- Remote Sensing in Agriculture
- Climate variability and models
- Forest Insect Ecology and Management
- Plant biochemistry and biosynthesis
- Forest Management and Policy
- Remote Sensing and LiDAR Applications
- Fire effects on ecosystems
- Plant and animal studies
- Botany and Plant Ecology Studies
- Plant Ecology and Soil Science
- Lichen and fungal ecology
- Indoor Air Quality and Microbial Exposure
- Vehicle emissions and performance
- Tree-ring climate responses
- Forest Biomass Utilization and Management
- Antioxidant Activity and Oxidative Stress
- Land Use and Ecosystem Services
Joint Research Centre
2008-2017
Joint Research Centre
2006-2012
European Commission
2005-2011
Ente Regionale per i Servizi all'Agricoltura e alle Foreste
2009
University of Milano-Bicocca
2009
Istituto per il Sistema Produzione Animale in Ambiente Mediterraneo
2008
National Research Council
2008
European Union
1998-2005
Institute for Sustainability
2004-2005
University of Bayreuth
2002
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...
Abstract Terrestrial ecosystems sequester 2.1 Pg of atmospheric carbon annually. A large amount the terrestrial sink is realized by forests. However, considerable uncertainties remain regarding fate this over both short and long timescales. Relevant data to address these are being collected at many sites around world, but syntheses still sparse. To facilitate future synthesis activities, we have assembled a comprehensive global database for forest ecosystems, which includes budget variables...
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...
Initiated in 1984, the Committee Earth Observing Satellites' Working Group on Calibration and Validation (CEOS WGCV) pursues activities to coordinate, standardize advance calibration validation of civilian satellites their data. One subgroup CEOS WGCV, Land Product (LPV), was established 2000 define standard guidelines protocols foster data information exchange relevant land products. Since then, a number leaf area index (LAI) products have become available science community at both global...
Pioneering work in the last century has resulted a widely accepted paradigm that primary production is strongly positively related to temperature and water availability such northern hemispheric forest carbon sink may increase under conditions of global warming. However, terrestrial at ecosystem level (i.e. net productivity, NEP) depends on balance between gross productivity (GPP) respiration (TER). Through an analysis European eddy covariance flux data sets, we find common climate...
Leaves of the monoterpene emitter Quercus ilex were exposed to a temperature ramp with 5 °C steps from 30 55 while maintained under conditions in which endogenous emission monoterpenes was allowed or suppressed, fumigation selected exogenous monoterpenes. Fumigation reduced decline photosynthesis, photorespiration and found non-fumigated leaves high temperatures. It also substantially increased respiration when photosynthesis inhibited by low O2 CO2-free air. These results indicate that, as...
Abstract. We applied a site evaluation approach combining Lagrangian Stochastic footprint modeling with quality assessment for eddy-covariance data to 25 forested sites of the CarboEurope-IP network. The analysis addresses spatial representativeness flux measurements, instrumental effects on quality, patterns in and performance coordinate rotation method. Our findings demonstrate that application filter could strengthen database, since only one third is situated truly homogeneous terrain....
Abstract. Soil emissions of NO and N2O were measured continuously at high frequency for more than one year 15 European forest sites as part the EU-funded project NOFRETETE. The locations represent different types (coniferous/deciduous) nitrogen loads. Geographically they range from Finland in north to Italy south Hungary east Scotland west. highest observed coniferous forests, whereas lowest deciduous forests. forests highly correlated with N-deposition. site average annual emission (82 μg...
Abstract. Forest soils are a significant source for the primary and secondary greenhouse gases N2O NO. However, current estimates still uncertain due to limited number of field measurements herein observed pronounced variability N trace gas fluxes in space time, which variation environmental factors such as soil vegetation properties or meteorological conditions. To overcome these problems we further developed process-oriented model, PnET-N-DNDC simulates exchange on basis processes involved...
Abstract. We present a new European plant-specific emission inventory for isoprene, monoterpenes, sesquiterpenes and oxygenated VOC (OVOC), on spatial resolution of 0.089×0.089 degrees, implementation in atmospheric transport models. The incorporates more accurate data foliar biomass densities from several litterfall databases that became available the last years main tree species Europe. A bioclimatic correction factor was introduced to correct trees crops different plant growth conditions...
Summary Attempts to combine biometric and eddy‐covariance ( EC ) quantifications of carbon allocation different storage pools in forests have been inconsistent variably successful the past. We assessed above‐ground biomass changes at five long‐term forest stations based on tree‐ring width wood density measurements, together with multiple allometric models. Measurements were validated site‐specific estimates compared sum monthly CO 2 fluxes between 1997 2009. Biometric measurements seasonal...
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...
• It is well established that individual organisms can acclimate and adapt to temperature optimize their functioning. However, thermal optimization of ecosystems, as an assemblage organisms, has not been examined at broad spatial temporal scales. Here, we compiled data from 169 globally distributed sites eddy covariance quantified the response functions net ecosystem exchange (NEE), ecosystem-level property, determine whether NEE shows optimality explore underlying mechanisms. We found...
Abstract. Rice paddy fields are one of the greatest anthropogenic sources methane (CH4), third most important greenhouse gas after water vapour and carbon dioxide. In agricultural fields, CH4 is usually measured with closed chamber technique, resulting in discontinuous series measurements performed over a limited area, that generally do not provide sufficient information on short-term variation fluxes. On contrary, aerodynamic techniques have been rarely applied for measurement fluxes rice...
VOC emission from orange orchards was determined in the framework of two field campaigns aimed at assessing contribution vegetation emissions to tropospheric ozone formation Valencia Citrus belt. Branch different varieties sinensis and Clementi dominated by β‐caryophyllene during summer period linalool blossoming season (April‐May). Large D‐limonene soil also measured. Data collected with enclosure technique were upscaled determine canopy rates terpene compounds. Values obtained compared...