The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. http://http://dspace.unitus.it:80 2013-05-22T14:12:27Z 2013-05-22T14:12:27Z Corona, Piermaria D'Orazio, Pierluigi Lamonaca, Andrea Portoghesi, Luigi http://hdl.handle.net/2067/2097 2011-06-07T00:30:52Z 2004-12-31T23:00:00Z

Title: L’indice Winkelmass per l’inventariazione a fini assestamentali della diversità strutturale di soprassuoli forestali Authors: Corona, Piermaria; D'Orazio, Pierluigi; Lamonaca, Andrea; Portoghesi, Luigi Abstract: Spatial pattern of tree species, sizes and ages affects functional processes and biodiversity of forest ecosystems. Therefore, it is more and more important that stand structural diversity can be assessed through easy-to-implement methodologies at forest management scale. This paper discusses the application of a recently proposed index (the Winkelmass index) of tree spatial aggregation, based on the measurement of the angles between neighboring stems, to a beech (Fagus sylvatica L.) forest in Northern Latium (Italy). Results shows that the Winkelmass index can be implemented in a simple and fast way according to objective sampling schemes and allows to produce a raster map of tree aggregation pattern in the forest. Under the stand condition in the test area, only four trees at each sample point were sufficient to characterize prevailing stand horizontal structure. Description: L'articolo è disponibile sul sito dell'editore www.sisef.it

2004-12-31T23:00:00Z Mattioli, Walter Pinelli, Adolfa Filibeck, Goffredo Portoghesi, Luigi Scoppola, Anna Corona, Piermaria http://hdl.handle.net/2067/2096 2011-06-07T00:30:51Z 2007-12-31T23:00:00Z

Title: Relazioni tra gestione selvicolturale, tipo forestale e diversità floristica in cedui castanili Authors: Mattioli, Walter; Pinelli, Adolfa; Filibeck, Goffredo; Portoghesi, Luigi; Scoppola, Anna; Corona, Piermaria Abstract: Chestnut stands are among the main forest formations in Italy. The aim of this work is to assess the floristic diversity of chestnut coppice stands of Sabatini Mts. (central Italy), highlighting the relationships between the silvicultural system and the ecological processes. In the management of these coppices almost exclusive importance has been given to the wood production, rating the stands on the basis of the rotation that maximizes the production of the most valuable assortments. The assessment carried out is based on floristic and dendrometric surveys within permanent circular plots (10 meters radius) randomly selected within three chronological strata. Surveys have been realized on a total of 15 plots, 5 for each stratum. Indices of floristic richness and diversity have been elaborated to point out variations of forest types and to suggest possible alternatives to the current management to mitigate its impact on biodiversity. Description: L'articolo è disponibile sul sito dell'editore www.sisef.it

2007-12-31T23:00:00Z Bianchi, Massimo Bovio, Giovanni Camia, Andrea Cantiani, Paolo Ferretti, Fabrizio Francesetti, Annalisa Lamonaca, Andrea Portoghesi, Luigi Corona, Piermaria http://hdl.handle.net/2067/2093 2011-06-07T00:30:51Z 2005-12-31T23:00:00Z

Title: “ProgettoBosco”: un sistema di supporto alle decisioni per la stesura di piani di gestione forestale quale strumento di sussidio all’attività didattica Authors: Bianchi, Massimo; Bovio, Giovanni; Camia, Andrea; Cantiani, Paolo; Ferretti, Fabrizio; Francesetti, Annalisa; Lamonaca, Andrea; Portoghesi, Luigi; Corona, Piermaria Abstract: The Decision Support System called “ProgettoBosco”, build up for preparing sustainable forest management plans, has been tested as an educational tool at the university level in Italy. This software was succesfully tested with the collaboration of 120 students from the Forestry Faculties of Turin and Tuscia (Viterbo). We show here that using this software students were able to organize effectively data, that have been used to compile, in a rather short time (one week), two forest managent plans, having an extension of 250 and 100 ha. Description: L'articolo è disponibile sul sito dell'editore www.sisef.it

2005-12-31T23:00:00Z Corona, Piermaria Barbati, Anna Ferrari, Barbara Portoghesi, Luigi http://hdl.handle.net/2067/2140 2011-06-28T00:30:45Z 2010-12-31T23:00:00Z

Title: Pianificazione ecologica dei sistemi forestali Authors: Corona, Piermaria; Barbati, Anna; Ferrari, Barbara; Portoghesi, Luigi Abstract: Questo testo didattico, focalizzato su piani e programmi deputati al governo delle superfici forestali a diversi livelli di scala nel nostro Paese, è orientato a presentare e discutere il ruolo degli strumenti di pianificazione forestale all’interno del più ampio scenario di strategie e norme per il governo del territorio intessuto dai piani di matrice urbanistico-territoriale e ambientale e dagli strumenti di valutazione ambientale integrata. Chiave di lettura della trattazione è l’applicazione di un approccio ecologico nelle varie fasi del processo di pianificazione. Esso si traduce nel ricorso a strumenti di indagine e di procedure valutative funzionali a: (i) mettere in luce opportunità e limiti da considerare nella gestione dei territori forestali al fine di garantire la durevolezza e riproducibilità dei beni e servizi da essi erogati, dalla scala locale a quella di paesaggio; ciò tenuto anche conto della varietà di regimi di protezione delle aree forestali applicati nel nostro Paese; (ii) garantire la sostenibilità ecologica delle trasformazioni territoriali e, dunque, anche la salvaguardia dei sistemi forestali, mediante strumenti specifici di valutazione e di tutela ambientale integrata. In relazione a ciò uno dei principali obiettivi didattici (e questo rappresenta una novità, almeno con riferimento al panorama della letteratura di settore in Italia) è il tentativo di integrare in un quadro organico e di lettura non eccessivamente specialistica i vari aspetti ecologici, normativo-procedurali e tecnico-gestionali coinvolti.

2010-12-31T23:00:00Z Barbati, Anna Corona, Piermaria Portoghesi, Luigi Iovino, Francesco Marchetti, Marco Menguzzato, Giuliano http://hdl.handle.net/2067/1904 2011-07-21T06:51:54Z 2009-12-31T23:00:00Z

Title: The application of the ecosystem approach through sustainable forest management: an Italian case study. Authors: Barbati, Anna; Corona, Piermaria; Portoghesi, Luigi; Iovino, Francesco; Marchetti, Marco; Menguzzato, Giuliano Abstract: During the last decades adapting silvicultural systems to a changed society, increasingly aware of the multifunctional role of forests, was a much debated issue in Italy. Stemming from this discussion is the systemic silviculture concept, an adaptive forest management tool aimed at cultivating the forest as a self-organizing system and focusing on sustaining its functional efficiency as the best way to enhance forest multi-functionality. This concept has much connection with the Ecosystem Approach defined by the Convention on Biological Diversity as a strategy for the integrated management of land, water and living resources that promotes conservation and sustainable use in an equitable way. In the following a case study is presented where the principles of systemic silviculture are implemented in the management of private and common forest properties in the Serre mountains of the Calabria Region (Italy); relationships with the Ecosystem Approach principles are analyzed in order to evaluate to what extent systemic silviculture can be regarded as a means to bring the EA to the implementation level.

2009-12-31T23:00:00Z Ciancio, Orazio Corona, Piermaria Lamonaca, Andrea Portoghesi, Luigi Travaglini, Davide http://hdl.handle.net/2067/2066 2011-05-03T00:35:33Z 2005-12-31T23:00:00Z

Title: Conversion of clearcut beech coppices into high forests with continuous cover: A case study in central Italy Authors: Ciancio, Orazio; Corona, Piermaria; Lamonaca, Andrea; Portoghesi, Luigi; Travaglini, Davide Abstract: Converting coppices into high forests with continuous cover has often been established during the last decades as a management goal in hilly and mountainous Mediterranean areas to attenuate the negative effects that frequent clearcutting may have on soil, landscape and biodiversity conservation. The silvicultural tool usually adopted for this purpose is the gradual thinning of sprouts during the long span of time required to complete the conversion, that also allows the owner to keep harvesting some wood. This research compared the effects of various thinning intensities (three treatments plus control) on the stand growth and structure of a beech coppice with standards. The optimal density after thinning was assessed by expressing mean tree spacing as a function of main stand attributes like stand height and stand dbh. This system was preferred to the empirical evaluation of the percentage of basal area to be removed in order to give forest managers general reference guidelines to adapt to the varying environments of the Mediterranean mountains. Results confirmed that the positive effects of thinning on mean stem volume is due more to the higher diameter increment than to different height growth. The acceleration of crown growth in the thinned plots allowed canopy closure to be achieved 13 years after thinning. This reduced the negative effects of the opening of the stand overlayer and the elimination of most suppressed trees on soil protection. Under the conditions examined, the best thinning intensity proved to be a stand density 20% lower than normal prescribed by the yield tables elaborated for beech high forests in Central and Southern Italy.

2005-12-31T23:00:00Z Mattioli, Walter Quatrini, Valerio Di Paolo, Silvia Di Santo, Daniele Giuliarelli, Diego Angelini, Alice Portoghesi, Luigi Corona, Piermaria http://hdl.handle.net/2067/2309 2012-07-26T23:05:46Z 2011-12-31T23:00:00Z

Title: Experimenting the design-based k-NN approach for mapping and estimation under forest management planning Authors: Mattioli, Walter; Quatrini, Valerio; Di Paolo, Silvia; Di Santo, Daniele; Giuliarelli, Diego; Angelini, Alice; Portoghesi, Luigi; Corona, Piermaria Abstract: Estimation and mapping of forest attributes are a fundamental support for forest management planning. This study describes a practical experimentation concerning the use of design-based k-Nearest Neighbors (k-NN) approach to estimate and map selected attributes in the framework of inventories at forest management level. The study area was the Chiarino forest within the Gran Sasso and Monti della Laga National Park (central Italy). Aboveground biomass and current annual increment of tree volume were selected as the attributes of interest for the test. Field data were acquired within 28 sample plots selected by stratified random sampling. Satellite data were acquired by a Landsat 5 TM multispectral image. Attributes from field surveys and Landsat image processing were coupled by k-NN to predict the attributes of interest for each pixel of the Landsat image. Achieved results demonstrate the effectiveness of the k-NN approach for statistical estimation, that is compatible with the produced forest attribute raster maps and also proves to be characterized, in the considered study case, by a precision double than that obtained by conventional inventory based on field sample plots only. Description: L'articolo è disponibile sul sito dell'editore www.sisef.it

2011-12-31T23:00:00Z