Osservazioni Preliminari Sull'ecologia di Semenzali di Rovere (Quercus Petraea (Matt.) Liebl.)

Cutini, Andrea; Mercurio, Riccardo

doi:10.1080/11263509509436172

Cited by 3 publications

(55 citation statements)

References 9 publications

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“…La mancanza di rinnovazione è messa in evidenza dall'indice di rinnovazione di Magini (1967). L'IR varia da 4 a 73.5 mentre i valori riportati per il Bosco di Sargiano (AR) da Cutini & Mercurio (1995) sono > 1400.…”

Section: La Rinnovazione Naturale E La Parunclassified

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Basic knowledge for forest restoration: the Pomieri forest case study (Madonie regional park, Sicily)

Bagnato¹,

Merlino²,

Mercurio³

et al. 2012

Forest@

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The purpose of this paper is to highlight a case study of forest restoration in the Pomieri Wood area (Madonie regional park, Sicily), consisting of a relict population of sessile oak (Quercus petraea subsp. austrothyrrenica Brullo, Guarino & Siracusa). To assess the functionality of the stand some biological indicators were taken into consideration: dendrometric-structural, floristic-vegetation, ecological, fructification, natural regeneration, disturbances. They reveal a state of degradation after a long period of overexploitation of resources. Forest restoration would lead to the regaining of the cultural value of the Pomieri wood by management authorities and local populations. Then a series of measures are to be carried out providing for the removal of degradation factors (grazing, illegal cuttings) and restoring stand density, biodiversity and ecological functionality

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Section: La Rinnovazione Naturale E La Parunclassified

“…L'insediamento della rinnovazione naturale è compatibile con i livelli di area basimetrica e volume, ad eccezione dell'AdS 5, che supera quei valori soglia riportati anche in precedenti lavori (De Mas 1992, Cutini & Mercurio 1995.…”

Section: La Rinnovazione Naturale E La Parunclassified

Basic knowledge for forest restoration: the Pomieri forest case study (Madonie regional park, Sicily)

Bagnato¹,

Merlino²,

Mercurio³

et al. 2012

Forest@

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“…Il massimo tasso di incremento di altezza al 2° anno viene raggiunto in condizioni di ridotta-media irradianza, ovvero con livelli di luce del 18-25% (Ponton et al 2002, Ziegenhagen & Kausch 1995 e del 31% in questo studio (Fig. 3), simili ai valori riportati da Cutini & Mercurio (1995) per la rovere. La strategia di massimizzare l'accrescimento epigeo rende la farnia molto sensibile allo stress idrico (Ponton et al 2002) in seguito al quale la crescita in generale, ma soprattutto quella delle radici, si riduce nettamente (Kullberg & Welander 2003).…”

Section: Classe Raduraunclassified

“…Tuttavia, in nessuno degli studi citati viene valutato l'effetto dell'interazione tra luce ed umidità edafica. Nella rovere, una specie appartenente sempre alla sezione Robur, l'interazione tra luce ed umidità del suolo influenza molte caratteristiche dimensionali dei semenzali, come gli incrementi in altezza e biomassa (Cutini & Mercurio 1995), l' area fogliare e la biomassa (totale e delle singole parti, Cutini & Mercurio 1997).…”

Section: Fig 3 -Tasso DI Crescita Relativa (Rgr) Per Altezza E Diameunclassified

Light and soil humidity influencing oak seedling growth and physiology in mixed hardwood gaps

Raddi¹,

Basile²,

Anichini³

et al. 2009

Forest@

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Light and soil humidity influencing oak seedling growth and physiology in mixed hardwood gaps. In "S. Rossore, Migliarino, Massaciuccoli" Natural Park (Pisa, I) six-month-old pedunculate oak seedlings (Quercus robur L.) were transplanted within natural gaps of a mixed oak forest. Micro-environmental variability for radiation and water soil content were measured for 145 seedlings during the year. Irradiation relative to the open field (IR) ranged from 5% to 57%. Seven classes of IR each with 20 seedlings were selected. Leaf mass per area was strongly influenced by IR. In the first 3 years survival was high (95, 76 and 75%, respectively) and seedling reached 14±6 cm, 27±13 cm and 39±19 (sd) cm of height. Even if IR and soil water content (SWC) were negatively associated, indicating a lower SWC at the centre of the gaps, height and its relative growth rate increased with IR (explored range: 8-40%) with a significant interaction with SWC in the 1 st year, indicating the positive effect of soil moisture. In the 3 rd year dimensional traits were higher in L+W+ (high light and humidity) followed by L-W+ (low light and high humidity), L+W-and finally by L-W-. Summer drought typical of the Mediterranean climate was evaluated by chlorophyll fluorescence of PSII on apical leaves of seedlings and mature trees at the beginning (21 June) and in mid-summer (20 July). While in June physiological traits did not differ between low and high IR, in mid-summer (at the peak of water-stress) seedlings of the two highest light classes showed chronic photoinhibition (Fv/Fm<0.75) and an increase in thermal dissipation (D) by constitutive term (D c =1-Fv/Fm) and by regulated mechanisms of dissipation through xanthophyll-cycle term (D x ). Moreover, in July seedling leaf physiology largely differed with IR: leaves acclimated to high IR have higher photosynthetic potentialities, as shown by electron transport rate (ETR) and quantum yield (P) at saturating light maintained by an increase of the fraction of open reaction centres (qP), counterbalancing the efficiency decrease of the single reaction centres (Fv'/Fm') dynamically protected via xanthophyll-cycle (D x ). Tree apical leaf physiology behaved differently from seedling leaves both in June (except Fv/Fm) and in July (except D x ). In June photochemistry was higher in tree apical leaves with higher ETR, P, qP and Fv'/Fm' with a lower fraction of energy dissipated and in particular through lower loss by photoprotection through D x as expected for high light conditions without stress; in July no chronic photoinhibition was observed in tree light leaves, the efficiency of single reaction centres (Fv'/Fm') remained high but a drop in the fraction of open centre (qP) decreased significantly P and thus ETR. Consequently the highest potentialities in photochemistry (P) were observed in large gaps (at 40% IR).Keywords: Forest gaps, Natural regeneration, Light environment, Soil humidity, Fluorescence, Oakwood, Quercus robur Received: Feb 25, 2008; Accepted: Apr 29, 2009 Citation: ...

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“…− Ref. : Marcucci 1889;Baroni 1897Baroni -1908Fiori 1943;Pichi Sermolli 1948;Zangheri 1966a;Zangheri 1966b;Matteini 1968;Siemoni et al 1989Siemoni et al -1998Chiosi 1990;Vos & Stortelder 1992;Cutini et al 1993;Gonnelli, Zoccola & Norcini 2001;Viciani 2001;De Dominicis et al 2002;Gonnelli 2005a;Zingarelli 2006;Frignani et al 2009b;Gonnelli & Bottacci 2012− Exs. : 20022004 (Herb.…”

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confidence: 99%

An annotated checklist of the vascular flora of the Arezzo administrative province (Tuscany, Italy)

Viciani

Ferretti

Bernardini³

et al. 2020

Plant Biosystems - An International Journal Dealing with all As

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For each accepted taxon, the names used by the authors we quote are indicated in the original form, even if not formally correct (i.e. with the original abbreviation and with or without authors, as indicated in the bibliographical references), following the abbreviation "Cit. sub" (cited sub). Herbarium codes are indicated according to Thiers (2019). LYCOPHYTES LYCOPODIACEAEDiphasiastrum alpinum (L.

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Osservazioni Preliminari Sull'ecologia di Semenzali di Rovere (Quercus Petraea (Matt.) Liebl.)

Cited by 3 publications

References 9 publications

Basic knowledge for forest restoration: the Pomieri forest case study (Madonie regional park, Sicily)

Basic knowledge for forest restoration: the Pomieri forest case study (Madonie regional park, Sicily)

Light and soil humidity influencing oak seedling growth and physiology in mixed hardwood gaps

An annotated checklist of the vascular flora of the Arezzo administrative province (Tuscany, Italy)

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