Search results for "Selvicoltura"

Storia dei rimboschimenti di Monte Pellegrino (Palermo)

2020

È stata compiuta una ricerca storica sulla attività di rimboschimento a Monte Pellegrino. Le vicende legate alla gestione del territorio e alle vicissitudini che hanno portato a rimboschire il Monte sono paradigmatiche del modo di concepire la gestione del territorio in Sicilia. L’incendio che il 16 giugno del 2016 ha interessato Monte Pellegrino ha riacceso i riflettori sul bosco e su quel che rimane dei rimboschimenti. Le pubblicazioni individuate attraverso questa ricerca, se adeguatamente studiate, possono essere una buona base di partenza per evitare di compiere gli errori del passato e fare tesoro di questa lunga esperienza. Historical research was carried out on reforestation activit…

Fitting the Stocking Rate with Pastoral Resources to Manage and Preserve Mediterranean Forestlands: A Case Study

2015

Pasture practices have affected Mediterranean forest ecosystems for millennia, and they are still quite widespread in mountainous areas. Nevertheless, in the last decades, the stability of forest ecosystems has been jeopardized due to the abandonment of traditional agro-pastoral practices, so that the gradual reduction of open areas due to progressive succession processes has caused a high increase of grazing pressure by livestock and wild ungulates feeding on forest areas. This paper aims at showing a methodological approach for evaluating the effect of applying measures in order to improve the grazing value of grasslands and ecotonal patches and lower the grazing impact on native woodland…

Raccordo tra pianificazione forestale e pianificazione antincendi boschivi.

2014

Il lavoro esamina le relazioni tra pianificazione forestale a livello regionale e locale(PFR e piani di assestamento forestale) e la relativa pianificazione antincendio. in particolare si evidenzia l'importanza della relazione con il livello locale nella programmazione di azioni selvicolturali volte a diminuire il livello di rischio e gestire il combustibile, nella possibilità di aumentare la resilienza dei sistemi.

Incendi, cultura dell’ambiente e selvicoltura in Sicilia1

2016

Si illustrano strumenti e metodi per la prevenzione degli incendi e per la formazione di una cultura attenta alla conservazione e alla valorizzazione dell’ambiente boschivo, offrendo anche alcune riflessioni sul loro impatto economico

Le principali specie arboree esotiche invasive e le categorie forestali più vulnerabili alla loro invasione nel territorio italiano

2022

In Italia, come in gran parte d’Europa, sono state introdotte numerose specie arboree esotiche che, in alcuni casi, si sono diffuse al di fuori delle aree di impianto e si sono naturalizzate, causando impatti alla biodiversità e al paesaggio. Studi recenti hanno definito la distribuzione degli alberi esotici invasivi in diversi habitat naturali e semi-naturali a scala nazionale. Sarebbe però utile soffermarsi sulla loro distribuzione tra categorie forestali, unità di classificazione dei boschi utili alla loro gestione. In questo lavoro sono state identificate le categorie forestali attualmente o potenzialmente più soggette all’invasione da parte delle specie arboree esotiche invasive, con l…

The Management of Invasive Non-Native Trees in the Mediterranean Protected Areas: Sicily as a Case Study

2022

Invasive non-native trees (INNTs) are increasingly recognized to have negative effects on biodiversity and ecosystem services in protected areas. The management of INNTs is one of the major challenges to preserving native species and ecosystems, to which more and more efforts and resources are bound to be destined in the coming decades. Indeed, the combined effects of climate change and increasing disturbance factors (e.g. wildfires) are likely to aid the spread of many INNTs in the Mediterranean protected areas, as well as favouring their competitive relationships with native species. However, the effective implementation of control measures is far from being fully achieved. I assessed how…

BRIGNONE F., 2012 – I giardini dell’isola di Pantelleria. Litotipografia “Nuova Stampa”, Trapani, 103 pp., € 25

2013

Landscape structure, resilience and ecogeographic relations between agro-forestry and forestry landscapes of Sicily: quantitative approaches

2014

Landscape ecology provides a wide spectrum of useful techniques for quantitative analysis of the land-mosaic patterns, on the basis of areal, linear and punctual parameters. According to the scale of analysis, data collection can be costly and time-consuming; this is especially true in areas with a very heterogeneous land-mosaic patterns and landscape-types for environmental variability and cultural reasons. Aims of this work are: 1) to assess the land-mosaic complexity of the traditional agricultural and agro-forestry landscapes (PAfT) of Sicily; 2) to highlight interfaces and structural gradients between main forest areas and closed PAfTs. These aims have the main purpose to pinpoint agri…

Studies on the Quercus hybrids in Sicily: leaf micromorphology and xylem structure in Quercus × fontanesii Guss.

2000

In order to find new suitable characters in the taxonomic delimitation of the genus Quercus, whose hardness is well known, Quercus x fontanesii, endemic to Sicily, has been studied in comparison with its parents, i.e. Q. gussonei, wich is close to Q. cerris, and Q. suber. These taxa are here delimited as far as taxonomy, ecology, and Sicilian distribution are concerned. Furthermore, the results of SEM microstructure analysis of leaves and xylem anatomy are illustrated and commented. The analysis of the leaf microstructures shows that there is a remarkable similarity between the stomata and stellata trichomes of Q. x fontanesii and both the parental species, as the trichome rays are numerica…

Effect of Afforestation on Soil Carbon and Nitrogen Content on a Mediterranean Island (Lampedusa, Italy)

2015

During the 20th century, large surfaces in the Mediterranean countries were subject to afforestation activities, mostly affecting abandoned agricultural lands. Under semi-arid climate conditions, Pinus spp. were the most frequently used species for these activities. The effect of pine plantations on soil organic carbon (SOC) and nitrogen (N) content in Lampedusa Island (South Italy) was investigated. SOC and soil N content under pine plantations of different ages (14, 24 and 43 years since plantation) were compared with SOC and soil N content in garrigue communities, which were dominated by shrubs, subshrubs and perennial herbs. The results showed that SOC content is affected by plantation …