Search results for "forest"
showing 10 items of 3780 documents
The volume and composition of dead wood on traditional and forest fuel harvested clear-cuts
2010
Logging residue and cut stumps are increasingly used as a renewable energy source known as forest fuel. Forest fuel harvesting obviously reduces the volume of dead wood and is likely to alter the dead wood composition, but the magnitude of the change is not known. Such information is important for the evaluation of the effects of forest fuel harvesting on biodiversity because a large proportion of forest dwelling species are directly dependent on dead wood. We measured the volume and characteristics of all dead wood units with a minimum diameter of 2 cm and a minimum length of 20 cm on 10 forest-fuel harvested and 10 traditional (control) clear-cuts. The total volume of dead wood at forest …
The implications of stand composition, age and spatial patterns of forest regions with different ownership type for management optimisation in northe…
2015
Abstract Forests with different ownership type often form complex mosaics of stands, thus adding new challenges to the spatial planning of sustainable management in forested landscapes. This study attempted to analyse the spatial patterns and age structures of forest regions with different ownership type and to formulate suggestions for the optimisation of tactical planning of forest management planning by addressing ecological functionality at the landscape level. We hypothesised that structure of forests of various ownership groups differs significantly. National forest inventory data from 2011 was used in this study to compare spatial patterns of forest stands and clearcuts, as well as f…
Forest types for biodiversity assessment at regional level: the case study of Sicily (Italy)
2007
Within Europe the question of plant coenosis is attracting growing interest. The quality and quantity of collected information on forest resources at a global level largely depends on the capacity to collect and analyse data at national and sub-national scale in a way compatible with those at global or continental levels. In Italy the acceptance of all the international agreements and protocols on the protection of the environment and management of natural resources, requires a standardization of collected information and statistics, with the aim to produce homogeneous and integrative data at global level. This need is reflected in the following points: (1) the adoption of a classification …
Linking woodland key habitat inventory and forest inventory data to prioritize districts needing conservation efforts
2012
Woodland key habitat (WKH) inventories have been conducted in northern European countries, with the aim to create networks of minimally disturbed forest stands for protection. The goal of national forest inventory is to provide information relevant to forest management, such as on forest types, trees species composition, age structure and wood volume. The aim of this study was to link these two inventory databases to identify districts of Latvia most deficient in connectivity and habitat quality, in order to prioritize districts needing conservation effort. As an example, the area of deciduous forest with nemoral tree species (oak, ash, lime, maple and elm) and aspen was chosen. These fores…
Simplified methods for spatial sampling: application to first-phase data of Italian National Forest Inventory (INFC) in Sicily
2006
Abstract: Methodological approaches able to integrate data from sample plots with cartographic processes are widely applied. Based on mathematic-statistical techniques, the spatial analysis allows the exploration and spatialization of geographic data. Starting from the punctual information on land use types obtained from the dataset of the first phase of the ongoing new Italian NFI (INFC), a spatialization of land cover classes was carried out using the Inverse Distance Weighting (IDW) method. In order to validate the obtained results, an overlay with other vectorial land use data was carried out. In particular, the overlay compared data at different scales, evaluating differences in terms …
Unmanned Aerial Vehicle (UAV) operated spectral camera system for forest and agriculture applications
2011
VTT Technical Research Centre of Finland has developed a Fabry-Perot Interferometer (FPI) based hyperspectral imager compatible with the light weight UAV platforms. The concept of the hyperspectral imager has been published in the SPIE Proc. 7474 and 7668. In forest and agriculture applications the recording of multispectral images at a few wavelength bands is in most cases adequate. The possibility to calculate a digital elevation model of the forest area and crop fields provides means to estimate the biomass and perform forest inventory. The full UAS multispectral imaging system will consist of a high resolution false color imager and a FPI based hyperspectral imager which can be used at …
Il piano di gestione dei boschi demaniali del Comune di Bivona (Provincia di Agrigento)
2014
L’area dei Monti Sicani costituisce uno dei comprensori in cui è stata realizzata la maggiore estensione di rimboschimenti di conifere della Sicilia occidentale, nell’ambito della politica di salvaguardia del territorio dal dissesto idrogeologico intrapresa dallo Stato e continuata dalla Regione. Lo stato qualitativo di queste formazioni è carente a causa di diverse ragioni: frequenti incendi, pascolo eccessivo, elevata frammentazione degli habitat naturali, mancanza di adeguati interventi selvicolturali. Da queste considerazioni emerge la necessità di conoscere e gestire più adeguatamente tali boschi attraverso la realizzazione di Piani di Gestione Forestale, strumento operativo-applicativ…
La pianificazione forestale in Sicilia: storia e recenti evoluzioni
2018
In Sicilia la pianificazione forestale ha avuto di recente una svolta resasi necessaria sia per motivi richiesti dall’autorità europea e da quella nazionale, sia per un’oggettiva necessità del territorio. Dal punto di vista normativo la storia degli ultimi decenni ha visto la Sicilia dotarsi di norme e giuridicamente all’avanguardia e lungimiranti dal punto di vista della conservazione del patrimonio naturale. Si fa infatti riferimento ai piani di assestamento forestale per la gestione del patrimonio boschivo isolano dalle leggi regionali del 1989, del 1996, del 2004 con l’emanazione di linee guida regionali e della LR 14/2006. Quest’ultima in particolare richiamava anche alla necessità di …
The role of traditional Erica arborea L. management practices in maintaining northeastern Sicily’s cultural landscape
2007
The tree heath (Erica arborea L.), a small evergreen tree found in the Mediterranean region and parts of Eastern and Central Africa, produces lignotubers that are highly valued for making smoking pipes. The Peloritani Mountains of northeastern Sicily are historically one of the most important areas in Italy for the production of these high quality lignotubers, known as briar root wood. In the past, tree heath shrublands were also an important source of charcoal. Erica arborea utilisation has declined dramatically during the past century, mostly due to the decreasing demand for smoking pipes, as well as the increasing frequency of wildfires and large-scale afforestation activities in this re…