Search results for "CA [SR]"
showing 10 items of 2784 documents
Assisted phytostabilization of soil from a former military area with mineral amendments.
2019
Abstract Due to the presence of toxic pollutants, soils in former military areas need remedial actions with environmentally friendly methods. Greenhouse experiments were conducted to investigate the aided phytostabilization of multi-heavy metals (HMs), i.e. Cd, Cr, Cu, Ni, Pb, Zn, in post-military soil by Festuca rubra and three mineral amendments (diatomite, dolomite and halloysite). The amendments were applied at 0 and 3.0% to each pot filled with 5 kg of polluted soil. After seven weeks of the phytostabilization, selected soil properties, biomass yield of F. rubra and immobilization of HMs by their accumulation in plant and redistribution among individual fractions in soil were determine…
Fra testo e musica: l’opposizione 'gai' / 'greu' nella canzone dei trovatori
2021
La questione dei rapporti fra testo e musica nei trovatori è stata affrontata secondo prospettive diverse, in cui raramente si verifica una reale convergenza fra i presupposti epistemici e metodologici della filologia romanza e della musicologia medievale. In questo intervento si cercherà di valutare se e fino a che punto l’opposizione fra melodie ‘gaie’ e ‘gravi’ che emerge dai testi poetici sia riferibile anche ad alcune delle melodie trasmesse, configurando in ultima analisi una caratterizzazione ‘etica’ del testo musicale in relazione a quello verbale all’interno del genere canzone. The question of the relationship between text and music in the Troubadour corpus has been approached from…
Indagini fitosociologiche sulla vegetazione a Bupleurum fruticosum (Umbelliferae) del versante tirrenico della Sicilia orientale
2009
Phytosociological researches on the Bupleurum fruticosum vegetation on the tyrrhenian side of Eastern Sicily. The results of a phytosociological study carried out on some Bupleurum fruticosum shrubby formations, recorded in the Tyrrhenian side of eastern Sicily, are presented. This plant com- munity, characterized by a high occurrence of sclerophylls, is proposed as a new association named Spartio juncei-Bupleuretum fruticosi (holotypus: ril. n° 13 in Tab. 1), included in the suball. Pruno- Rubenion (Pruno-Rubion, Prunetalia, Rhamno-Prunetea).
Fisica moderna, racional y experimental / de Don Andres Piquér ... ; tomo primero
1780
Capll. i alg. orn. Sign.: a4, A-Z, Aa-Dd8, Ee4 37 lín. - Notes a peu de p. - Reclams
Allium paniculatum L., una specie critica ed erroneamente interpretata della flora europea
2010
Dalle indagini morfologiche e cariologiche condotte è emerso che Allium paniculatum è una specie ben differenziata dagli altri taxa della sez. Codonoprasum, con corredo cromosomico poliploide, esaploide o triploide, probabilmente originatosi in seguito all’adattamento ad ambienti sinantropici in territori con bioclima marcatamente mesico, come si desume dalle esigenze ecologiche, dal periodo di fioritura estivo e dalla distribuzione geografica.
Ellenberg’s Indicator values for the Flora of Italy – first update: Pteridophyta, Gymnospermae and Monocotyledoneae
2012
Ellenberg’s indicator values are an useful tool to delineate the relationship between plants and environment, recognising to each species a functional role as biological indicator. In the frame of the second edition of the Pignatti’s “Flora d’Italia”, some new informative systems are under preparations, in order to support geobotanical/applied studies, including a complete and updated review of the Ellenberg’s indicator values for the whole bulk of species mentioned in the flora of Italy. This first contribution includes a list of 380 species of Pteridophyta, Gymnospermae and Monocotiledoneae that complete the first assignment of the Ellenberg’s indicator values to the flora of Italy, publi…
New records and observations to the Characean flora (Charales, Charophyceae) of Sicily (Italy)
2019
New records to the Characean flora of Sicily are presented. Five species (Chara baltica, C. conimbrigensis, C. oedophylla, Nitella gracilis, Tolypella salina) are new to Sicily, two of them being also new to Italy (Chara conimbrigensis, C. oedophylla). Two species are confirmed for Sicily (Chara aspera, Nitella opaca), three (Chara braunii, C. canescens, Nitella capillaris) are rare taxa. The Characean flora of Sicily, updated with these records, currently includes 25 species, distributed in four genera: Chara (13 species), Nitella (eight species), Tolypella (three species) and Lamprothamnium (one species).
Measurement and Conservation of Species and Habitat Biodiversity at Different Scales on Small Mediterranean Islands
2021
In this paper we discuss current methodologies for measuring biodiversity, analyse pros and cons at different scales, and finally propose distribution mapping as the most suitable method for measuring floristic biodiversity on small Mediterranean islands. These territories often host endangered flora and habitats, and have peculiarities that distinguish them from the mainland and the larger islands.
Notulae to the Italian native vascular flora: 12
2021
In this contribution, new data concerning the distribution of native vascular flora in Italy are presented. It includes new records, confirmations, exclusions, and status changes to the Italian administrative regions. Nomenclatural and distribution updates, published elsewhere, and corrigenda are provided as Suppl. material 1.
Genetic diversity in Cytisus aeolicus Guss. (Leguminosae), a rare endemite of the Italian flora
1998
ABSTRACT Cytisus aeolicus Guss, is an endemic plant restricted to the isles of Vulcano, Stromboli and Alicudi in the Aeolian archipelago. All known populations were assayed for genetic variability using enzyme polymorphism. Allozyme variation at 16 loci coding for 10 enzyme systems was examined. The great majority of loci turned out to be monomorphic or fixed heterozygous. The observed genetic depauperation is indicative of historical factors, such as the bottleneck effect associated with migration, and the founder effect in population re-establishment. The low genetic diversity is largely partitioned within rather than among populations, indicating that extant populations have not been est…