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Strazzabosco, L (2014) La sostenibilità degli interventi su alberi veterani: un protocollo per la valutazione integrata e la cura. [Ph.D. thesis]

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Abstract (english)

The purpose of this study was to develop and implement a protocol for risk analysis and assessment of veteran trees in public places. One of the main objectives of the management plans of the historical sites is the preservation of the trees "founders". Many of the trees "founder" survivors are subjected to inappropriate management practices, which lowered their life expectancy and greatly reduced their biomechanical safety factor. The protocol developed for the assessment of these trees is based on two types of analysis: a biological assessment of tree health and well-being, and a new method for assessing the biomechanical stability of the tree ( OREBLA - a worksheet digital based tree modeling and evaluation system ).
The biological evaluation of tree health is a critical step to evaluate the ability of a veteran tree to react to management practices that lead to the reduction of the biomass. In particular, the metabolic activity of the root system is evaluated by measuring the starch content of the root that has been shown to be related to the response to tree management practices. OREBLA is an integrated tool biomechanical analysis, which includes a modeling of the tree structure based on the protocol EUROCODE for the evaluation of the safety factor of structures exposed to the wind . The evaluation is based on data dendrometric and diagnostic, non-invasive tools for the analysis of the trunk and limbs ( Sonic tomography and electrical ) , and also on an assessment of the risk of tree failure due to fracturing of the plate ( Pulling Test). The protocol was tested in the assessment of veterans 'founders' of the Park trees Revedin Bolasco in Castelfranco Veneto (Italy).

Abstract (italian)

Lo scopo dello studio è stato quello di sviluppare e implementare un protocollo per l'analisi del rischio e la valutazione di alberi veterani in luoghi aperti al pubblico. Uno dei principali obiettivi dei piani di gestione dei siti storici è la conservazione degli alberi " fondatori". Molti degli alberi "fondatore" superstiti sono sottoposti a pratiche gestionali inadeguate, che ha abbassato la loro speranza di vita e notevolmente ridotto il loro fattore di sicurezza biomeccanico. Il protocollo messo a punto per la valutazione di questi alberi si basa su due tipi di analisi: una valutazione biologica di salute degli alberi e il benessere e un nuovo metodo per la valutazione biomeccanica della stabilità dell'albero ( OREBLA - un foglio di lavoro digitale basato modellazione albero e sistema di valutazione ).
La valutazione biologica di salute degli alberi è un passo fondamentale per valutare la capacità di un albero veterano di reagire alle pratiche di gestione che comportano la riduzione della biomassa. In particolare l'attività metabolica del sistema radicale viene valutata mediante la misurazione del contenuto di amido radice che è stato dimostrato essere correlata alla risposta albero alle pratiche di gestione. OREBLA è uno strumento integrato analisi biomeccanica , che comprende una modellazione della struttura ad albero basato sul protocollo EUROCODE per la valutazione del fattore di sicurezza di strutture esposta al vento. La valutazione si basa su dati dendrometriche e diagnostici, strumenti non invasivi, per il tronco e gli arti di analisi ( Sonic e tomografia elettrica), e anche su una valutazione del rischio di fallimento albero a causa della zolla fratturazione (Pulling Test).
Il protocollo è stato testato nella valutazione degli alberi veterani " fondatori " del Parco Revedin Bolasco a Castelfranco Veneto ( Italia).

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EPrint type:Ph.D. thesis
Tutor:Mutto Accordi, S
Ph.D. course:Ciclo 26 > Scuole 26 > SCIENZE DELLE PRODUZIONI VEGETALI
Data di deposito della tesi:23 January 2014
Anno di Pubblicazione:23 January 2014
Key Words:valutazione del rischio albero, biomeccanica albero , albero valutazione biologica , alberi veterani/risk assessment tree, tree biomechanics , biological evaluation tree , veteran trees
Settori scientifico-disciplinari MIUR:Area 07 - Scienze agrarie e veterinarie > AGR/12 Patologia vegetale
Struttura di riferimento:Dipartimenti > Dipartimento di Agronomia Animali Alimenti Risorse Naturali e Ambiente
Codice ID:6328
Depositato il:04 Nov 2014 11:31
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