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DatoValore
TitleAdvanced monitoring of forest ecosystems in Italy and integrated analysis of long-term data
AbstractOpen field bulk deposition of inorganic nitrogen (N-NO3 + N-NH4) measured at Level II sites in Italy over the period 2000-2011 ranged from 3.9 to 16.2 kg ha-1 per year. A positive effect on basal area increment and C sequestration was detected at the same sites (Ferretti et al. 2014), but uncertainty remains on the overall impact of N deposition on the Italian forests. Data on N deposition at national level are available only in the form of large-scale, emission based models with relatively coarse spatial resolution (EMEP model, 50 x 50 km), which may be not reliable, when scaled down to local scales. Here we attempted to use measured Level II data from the Italian network to: . Validate existing and freely available EMEP data; and . develop an independent, deterministic geo-statistical model based on actual data measured at Level II sites over the period 2000 - 2011. To validate existing model output we run a simple exercise comparing spatial and temporal pattern of measured and modelled N deposition in relation to those measured at the Level II sites. For the geo-statistical model, we used the following predictors: latitude, longitude, elevation, aspect, annual precipitation and land use within three different buffer ranges: 3, 16 and 50 km radius from the very plot. Here we present the first outputs of the study. These results will be used in three directions: to derive N deposition estimates for Level I plots (and other sites); to feed correlative studies on the effect of N deposition on forests; to re-design the Italian deposition monitoring program, in terms of number of sites and their spatial allocation (retrospective design).
SourceIV ICP Forests Scientific Conference "Long-term trends and effects of air pollution on forest ecosystems, their services, and sustainability", Ljubjana, Slovenia, 19 maggio 2015
KeywordsICP Forests
Year2015
TypePresentazione
AuthorsMarchetto, Aldo Bacaro, Giovanni Amici, Valerio Ferretti, Marco
Text334710 2015 ICP Forests Advanced monitoring of forest ecosystems in Italy and integrated analysis of long term data Marchetto, Aldo Bacaro, Giovanni Amici, Valerio Ferretti, Marco CNR ISE, Pallanza Verbania TerraData environmetrics, Monterotondo Marittimo GR Open field bulk deposition of inorganic nitrogen N NO3 N NH4 measured at Level II sites in Italy over the period 2000 2011 ranged from 3.9 to 16.2 kg ha 1 per year. A positive effect on basal area increment and C sequestration was detected at the same sites Ferretti et al. 2014 , but uncertainty remains on the overall impact of N deposition on the Italian forests. Data on N deposition at national level are available only in the form of large scale, emission based models with relatively coarse spatial resolution EMEP model, 50 x 50 km , which may be not reliable, when scaled down to local scales. Here we attempted to use measured Level II data from the Italian network to . Validate existing and freely available EMEP data; and . develop an independent, deterministic geo statistical model based on actual data measured at Level II sites over the period 2000 2011. To validate existing model output we run a simple exercise comparing spatial and temporal pattern of measured and modelled N deposition in relation to those measured at the Level II sites. For the geo statistical model, we used the following predictors latitude, longitude, elevation, aspect, annual precipitation and land use within three different buffer ranges 3, 16 and 50 km radius from the very plot. Here we present the first outputs of the study. These results will be used in three directions to derive N deposition estimates for Level I plots and other sites ; to feed correlative studies on the effect of N deposition on forests; to re design the Italian deposition monitoring program, in terms of number of sites and their spatial allocation retrospective design . Published version IV ICP Forests Scientific Conference Long term trends and effects of air pollution on forest ecosystems, their services, and sustainability Ljubjana, Slovenia 19 maggio 2015 Internazionale Contributo presentazione 2015_A6_004_1.pdf Presentazione aldo.marchetto MARCHETTO ALDO TA.P02.014.002 Impatto dei cambiamenti globali sugli ecosistemi acquatici