Search results for "Stamen"
showing 10 items of 612 documents
1200 years of decadal-scale variability of Mediterranean vegetation and climate at Pantelleria Island, Italy.
2013
A new sedimentary sequence from Lago di Venere on Pantelleria Island, located in the Strait of Sicily between Tunisia and Sicily was recovered. The lake is located in the coastal infra-Mediterranean vegetation belt at 2 m a.s.l. Pollen, charcoal and sedimentological analyses are used to explore linkages among vegetation, fire and climate at a decadal scale over the past 1200 years. A dry period from ad 800 to 1000 that corresponds to the 'Medieval Warm Period' (WMP) is inferred from sedimentological analysis. The high content of carbonate recorded in this period suggests a dry phase, when the ratio of evaporation/precipitation was high. During this period the island was dominated by thermop…
The role of vineyards in the carbon balance throughout Italy
2015
A common belief is that agricultural fields cannot be net carbon sinks, but perennial tree crops, growing a permanent woody structure with a life cycle of decades could act as carbon sink. Vineyards are good candidates to test this hypothesis, because they are often grown with limited soil cultivation and produce plenty of woody pruning material that can be left on the ground. Three Eddy Covariance sites were established in different vineyards, along a north-south transect, in Italy, to study the role of vine cultivation in the carbon balance of the Italian penisula. The year 2009 was chosen as a reference year for the three sites, in order to compare carbon budget estimates in areas charac…
From the safeguard of Caretta caretta nesting sites to in-situ conservation of locally endangered plants: combined effects of the LIFE Project al Spi…
2013
Biodiversità: manuale per l’uso. Illustrato con 100 foto di Toni Puma.
2010
I Lepidotteri Ropaloceri (Insecta Lepidoptera) del bosco della Ficuzza: stato delle conoscenze e possibili relazioni tra il loro status e i cambiamen…
2012
Risultati dell’indagine preliminare per l’individuazione dei boschi vetusti in Sicilia
2015
La gran parte degli ecosistemi forestali del Mediterraneo è stata modificata ed utilizzata dall’uomo da millenni. I sistemi forestali più vicini alle condizioni di naturalità sono quelli non più gestiti e/o sottoposti ad un efficace regime di protezione e che tendono a recuperare caratteri strutturali e di funzionamento ecosistemico simili a quelli delle formazioni primarie originali. In Sicilia le conoscenze sulla presenza e diffusione dei boschi vetusti sono ad uno stadio preliminare. Nel più recente inventario forestale regionale è stata effettuata una prima selezione di 18 soprassuoli forestali considerati potenzialmente vetusti, che ricoprono 472 ettari di superficie. Sulla base dell’a…