The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. http://http://dspace.unitus.it:80 2013-05-20T13:19:18Z 2013-05-20T13:19:18Z Salvati, Riccardo http://hdl.handle.net/2067/1228 2011-02-25T01:31:10Z 2009-02-09T23:00:00Z

Title: Modello di valutazione degli ambiti territoriali potenzialmente idonei all’arboricoltura da legno con finalità energetiche Authors: Salvati, Riccardo Abstract: Le piantagioni governate a ceduo a turno breve (short rotation forestry – SRF) rappresentano il modello di arboricoltura da legno maggiormente idoneo alla produzione di biomassa lignocellulosica da destinare a usi energetici. Si tratta di impianti di specie arboree caratterizzati da un’elevata densità di impianto, variabile circa da 2000 a 15000 alberi ha-1, da una notevole intensità colturale e da cicli produttivi di durata variabile da 1 a 5 anni. La limitata disponibilità di risorse e la rete sempre più complessa di relazioni che coinvolgono l’uso del territorio pongono l’esigenza di un’attenta programmazione territoriale di questo tipo di interventi. Gli obiettivi di questo studio sono stati volti a: i) descrivere e caratterizzare i diversi moduli SRF, in termini di specie e tecniche colturali idonee per la produzione di biomassa; ii) descrivere l’attuale scenario produttivo potenziale delle colture SRF a scala nazionale; iii) sviluppare un modello innovativo di classificazione del territorio volto a delineare, da un punto di vista dei requisiti ambientali, le unità territoriali maggiormente vocate; iv) stimare la quantità di biomassa potenzialmente detraibile dalla realizzazione di impianti di cedui da biomassa a fini energetici. In questi ultimi anni sono stati messi a punto tecniche colturali ad hoc da impiegare in funzione delle caratteristiche pedo-climatiche e degli obiettivi produttivi. Il modello di valutazione qui elaborato si riferisce alla metodologia generale della land suitability/land capability, implementato tramite analisi multicriteriale con logica sfocata fuzzy in ambiente GIS. Nel complesso, gli ambiti territoriali idonei e marginalmente idonei per colture SRF in Italia risultano, rispettivamente, pari a circa 1098551 ha e 4277164 ha. II modello di valutazione costituisce un utile strumento informativo a disposizione e supporto dei soggetti responsabili della programmazione agricolo-forestale e della pianificazione del territorio rurale.; Short rotation forestry (SRF) systems imply the use of fast growing hardwoods, with high planting density (2000-15000 trees for hectar) and harvesting cycle beetween 1 to 5 years. Limited financial resources and the complex network of socio-economical and ecological constraints which affect land uses in Italy require a careful selection of farmland areas where short rotation forestry can be fostered and, hence, the adoption of adequate planning tools. The aims of this study were: i) to illustrate SRF models, in terms of species and tending techniques for producing biomass; ii) to describe the features of land physical suitability for this kind of plantations; iii) to develop a spatial model for assessing the physical suitability of the Italian territory to grow short rotation coppice plantations for energy biomass production; iv) to estimate wood energy biomass omount from SRF plantations. The model is based on a land suitability/land capability approach implemented within a GIS-based fuzzy MultiCriteria Evaluation process. Results show that in Italy suitable farmland for short rotation coppice plantations amounts to 1098551 ha and marginally suitable farmland to 4277164 ha. The model outcome in form of digital maps can be exploited as a decision support tool by the agricultural and forest managers and rural planning decision makers. Description: Dottorato di ricerca in Ecologia forestale

2009-02-09T23:00:00Z Corona, Piermaria Chiriacò, Maria Vincenza Ferrari, Barbara Salvati, Riccardo Marchetti, Marco Lasserre, Bruno http://hdl.handle.net/2067/1905 2011-04-12T00:30:23Z 2008-12-31T23:00:00Z

Title: Proposta metodologica per l'inventario su vasta scala fuori foresta. Authors: Corona, Piermaria; Chiriacò, Maria Vincenza; Ferrari, Barbara; Salvati, Riccardo; Marchetti, Marco; Lasserre, Bruno Abstract: Methodological proposal for large-scale inventory of trees outside forests Trees outside forests (TOF) are all those forest trees or group of trees scattered within rural and urbanized areas and not classified under forest. The importance of TOF is known as a source of energy for domestic use, soil and wind protection, biodiversity conservation, atmospheric CO2 sequestration, etc. The aim of this note is to outline a survey methodology to assess TOF on large territories, exploiting the first phase of the large-scale multiphase forest inventories. The protocol was tested in various landscapes in Italy, for a total inventoried land of 3533 km2. In the test areas TOF proved to stock 12,1 Mg C km-2, on average.

2008-12-31T23:00:00Z Chirici, Gherardo Chiesi, Marta Pasqui, Massimiliano Corona, Piermaria Salvati, Riccardo Barbati, Anna Lombardi, Fabio Maselli, Fabio http://hdl.handle.net/2067/2294 2012-08-01T07:42:46Z 2010-12-31T23:00:00Z

Title: Stima dei flussi di carbonio degli ecosistemi forestali italiani attraverso dati telerilevati ed ancillari Authors: Chirici, Gherardo; Chiesi, Marta; Pasqui, Massimiliano; Corona, Piermaria; Salvati, Riccardo; Barbati, Anna; Lombardi, Fabio; Maselli, Fabio Abstract: Le foreste rivestono un ruolo fondamentale nell’ambito dei cicli bio-geo-chimici di molti elementi quali, tra gli altri, azoto e carbonio. In particolare possono svolgere l’importante funzione di assorbitori di carbonio, sottraendo CO2 dall’atmosfera. Per questo, ed in vista dei cambiamenti climatici in atto sul nostro pianeta, un obiettivo importante è quello di quantificare l’effettivo accumulo di carbonio stoccato nelle foreste italiane. A questo ambisce il progetto FIRB C_FORSAT finanziato dal MIUR fino al 2013. Tra le metodologie proposte per raggiungere tale scopo (tecniche di eddy covariance, immagini da satellite e modelli bio-geochimici), quelle basate sull’impiego di modelli di simulazione dell’ecosistema unite all’utilizzo di dati telerilevati risultano le più promettenti. Esse infatti uniscono la possibilità offerta dai modelli di stimare tutti i processi dell’ecosistema (GPP, NPP ed NEE) basandosi sulla conoscenza delle specie analizzate e dell’ambiente in cui si trovano con quella di ottenere informazioni su vasta scala spaziale e con alto grado di ripetizione grazie all’uso di dati tele rilevati. A questo scopo il modello bio-geochimico BIOME-BGC opportunamente calibrato e validato per le principali classi forestali italiane appare particolarmente utile. L’utilizzo del modello in forma spazializzata su base nazionale richiede però la disponibilità di una vasta disponibilità di strati informativi. Tra questi i dati meteorologici giornalieri sono particolarmente critici, in quanto non risultano ancora disponibili sul territorio nazionale. Il contributo richiama brevemente la metodologia utilizzata nel progetto e si sofferma in particolare sull’approccio individuato per la generazione della banca dati meteo spazializzata ed il suo utilizzo per simulare il comportamento della macchia mediterranea.; Forests play an important role within numerous bio-geo-chemical cycles among which those of nitrogen and carbon. In particular, forests can behave as carbon sink by removing CO2 from the atmosphere. For this reason, and in view of global climate changes, it is important to quantify the amount of carbon stocked within Italian forest ecosystems. This is the objective of the FIRB project C_FORSAT financed by MIUR up to 2013. Among the available methodologies (eddy-covariance, remote sensing and bio-geo-chemical models), those based on the combined use of ecosystem simulation model and remotely sensed data are the most promising. They in fact enable to estimate all ecosystem processes (GPP, NPP and NEE) based on the knowledge of the species and the environment in which these live. Moreover, they offer the possibility to obtain spatial information with a high temporal frequency. The model BIOME-BGC is particularly useful to this aim after proper calibration and validation for the main Italian forest types. It requires numerous data layers, among which daily meteorological data are the most difficult to obtain for the whole national territory. This contribution summirezes the main methodological steps and focuses on the creation of a daily meteorological database, which is utilized to drive the simulation of Mediterranean macchia. Description: La pubblicazione è disponibile all'indirizzo http://www.attiasita.it/ASITA2011/indice_atti.html

2010-12-31T23:00:00Z Chiesi, Marta Chirici, Gherardo Corona, Piermaria Duce, Pierpaolo Salvati, Riccardo Spano, Donatella Vaccari, Francesco Maselli, Fabio http://hdl.handle.net/2067/2308 2012-07-26T23:05:46Z 2011-12-31T23:00:00Z

Title: Use of BIOME-BGC to simulate water and carbon fluxes within Mediterranean macchia Authors: Chiesi, Marta; Chirici, Gherardo; Corona, Piermaria; Duce, Pierpaolo; Salvati, Riccardo; Spano, Donatella; Vaccari, Francesco; Maselli, Fabio Abstract: The biogeochemical model BIOME-BGC is capable to estimate the main ecophysiological processes characterising all terrestrial ecosystems. To this aim it needs to be properly adapted to reproduce the behaviour of each biome type through a calibration phase. The aim of this paper is to adapt BIOME-BGC to reproduce the evapotranspiration (ET) and photosynthesis (GPP) of Mediterranean macchia spread all over Italy. Ten different sites were selected in the Centre-South of Italy and their gross primary production (GPP) was estimated by applying a parametric model, C-Fix, based on remotely sensed data for ten years (1999-2008). These monthly data were then used to calibrate BIOME-BGC through an iterative process which led to reproduce the spatial and temporal GPP variations found by C-Fix. The calibrated model was then applied to simulate the ET and GPP of two Italian sites characterised by the presence of an eddy flux tower; its performances were evaluated against ground data by common statistics. The results obtained indicate that, after a proper calibration phase, BIOME-BGC can be applied to estimate the evapotranspiration and photosynthesis of Mediterranean macchia with a good accuracy, strictly dependent on the input data utilised. Description: L'articolo è disponibile sul sito dell'editore www.sisef.it

2011-12-31T23:00:00Z Corona, Piermaria Cartisano, Rosaria Salvati, Riccardo Chirici, Gherardo Floris, Antonio Di Martino, Paolo Marchetti, Marco Scrinzi, Gianfranco Clementel, Fabrizio Torresan, Chiara http://hdl.handle.net/2067/2307 2012-07-26T06:53:39Z 2011-12-31T23:00:00Z

Title: Airborne Laser Scanning to support forest resource management under alpine, temperate and Mediterranean environments in Italy Authors: Corona, Piermaria; Cartisano, Rosaria; Salvati, Riccardo; Chirici, Gherardo; Floris, Antonio; Di Martino, Paolo; Marchetti, Marco; Scrinzi, Gianfranco; Clementel, Fabrizio; Torresan, Chiara Abstract: This paper aims to provide general considerations, in the form of a scientific review, with reference to selected experiences of ALS applications under alpine, temperate and Mediterranean environments in Italy as case studies. In Italy, the use of ALS data have been mainly focused on the stratification of forest stands and the estimation of their timber volume and biomass at local scale. Potential for ALS data exploitation concerns their integration in forest inventories on large territories, their usage for silvicultural systems detection and their use for the estimation of fuel load in forest and pre-forest stands. Multitemporal ALS may even be suitable to support the assessment of current annual volume increment and the harvesting rates.

2011-12-31T23:00:00Z Maselli, Fabio Pasqui, Massimiliano Chirici, Gherardo Chiesi, Marta Fibbi, Luca Salvati, Riccardo Corona, Piermaria http://hdl.handle.net/2067/2349 2013-03-01T00:05:48Z 2011-12-31T23:00:00Z

Title: Modeling primary production using a 1 km daily meteorological data set Authors: Maselli, Fabio; Pasqui, Massimiliano; Chirici, Gherardo; Chiesi, Marta; Fibbi, Luca; Salvati, Riccardo; Corona, Piermaria Abstract: The availability of daily meteorological data extended over wide areas is a common requirement for modeling vegetation processes on regional scales. The present paper investigates the applicability of a pan-European data set of daily minimum and maximum temperatures and precipitation, E-OBS, to drive models of ecosystem processes over Italy. Daily meteorological data from a 10 yr period (2000 to 2009) were first downscaled to 1 km spatial resolution by applying locally calibrated regressions to a digital elevation model. The original and downscaled E-OBS maps were compared with meteorological data collected at 10 ground stations representative of different eco-climatic conditions. Additional tests were performed for the same sites to evaluate the effects of driving a model of vegetation processes, BIOME-BGC, with measured and estimated weather data. The tests were carried out using 10 BIOME-BGC versions characteristic for local vegetation types (Holm oak, other oaks, chestnut, beech, plain/hilly conifers, mountain conifers, Mediterranean macchia, olive trees, and C3 and C4 grasses). The experimental results indicate that the applied downscaling performs best for maximum temperatures, which is the most decisive factor for driving BIOME-BGC simulation of vegetation production. The downscaled data set is particularly suitable for the modeling of forest ecosystem processes, which could be further improved by the use of information obtained from remote sensing imagery. Description: L'articolo è disponibile sul sito dell'editore www.int-res.com. Periodo di embargo: 5 anni.

2011-12-31T23:00:00Z