http://http://dspace.unitus.it:80 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. Wed, 22 May 2013 23:39:24 GMT 2013-05-22T23:39:24Z http://hdl.handle.net/2067/1900 Title: Sistemi di tariffe di cubatura per le fustaie di pino d’aleppo, pino laricio e pino domestico della Sicilia Authors: Corona, Piermaria; Cibella, Roberto; La Mantia, Tommaso; Chiriacò, Maria Vincenza Abstract: The aim of this study is to set up one-way volume table series to predict stem volume of the main conifers in Sicily, namely Italian stone pine, Aleppo pine and Corsican pine. For each species the relationships between height and tree diameter at breast height (dbh) resulted well represented by the semilogarithmic function, which was established as «guide line» of the height-diameter relationship. Adapting each height - dbh series according to the inclination of the «guide line», a set of isomorphic height curves was obtained for each species. Corresponding volume series was obtained from each height series on the basis of National Forestry Inventory volume tables. Oneway volume table series are of considerable usefulness in the context of forest management since they represent estimation tools with flexible application at different levels of forest management. Wed, 31 Dec 2008 23:00:00 GMT http://hdl.handle.net/2067/1900 2008-12-31T23:00:00Z http://hdl.handle.net/2067/1905 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. Wed, 31 Dec 2008 23:00:00 GMT http://hdl.handle.net/2067/1905 2008-12-31T23:00:00Z http://hdl.handle.net/2067/2316 Title: Extending large-scale forest inventories to assess urban forests Authors: Corona, Piermaria; Agrimi, Mariagrazia; Baffetta, Federica; Barbati, Anna; Chiriacò, Maria Vincenza; Fattorini, Lorenzo; Pompei, Enrico; Valentini, Riccardo; Mattioli, Walter Abstract: Urban areas are continuously expanding today, extending their influence on an increasingly large proportion of woods and trees located in or nearby urban and urbanizing areas, the socalled urban forests. Although these forests have the potential for significantly improving the quality the urban environment and the well-being of the urban population, data to quantify the extent and characteristics of urban forests are still lacking or fragmentary on a large scale. In this regard, an expansion of the domain of multipurpose forest inventories like National Forest Inventories (NFIs) towards urban forests would be required. To this end, it would be convenient to exploit the same sampling scheme applied in NFIs to assess the basic features of urban forests. This paper considers approximately unbiased estimators of abundance and coverage of urban forests, together with estimators of the corresponding variances, which can be achieved from the first phase of most largescale forest inventories. A simulation study is carried out in order to check the performance of the considered estimators under various situations involving the spatial distribution of the urban forests over the study area. An application is worked out on the data from the Italian NFI. Description: L'articolo è disponibile sul sito dell'editore www.springer.com Sat, 31 Dec 2011 23:00:00 GMT http://hdl.handle.net/2067/2316 2011-12-31T23:00:00Z