V. 77 N. 5 (2022)
Articoli Scientifici

Impatto dell’ozono troposferico sulle foreste italiane: applicazione di metodologie innovative per il monitoraggio in foresta:

Jacopo Manzini
Istituto di Ricerca sugli Ecosistemi Terrestri (IRET), Consiglio Nazionale delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italia. DAGRI, Università degli Studi di Firenze, Piazzale delle Cascine 18, 50144 Firenze, Italia.
Yasutomo Hoshika
Istituto di Ricerca sugli Ecosistemi Terrestri (IRET), Consiglio Nazionale delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italia.
Barbara Baesso Moura
Istituto di Ricerca sugli Ecosistemi Terrestri (IRET), Consiglio Nazionale delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italia.DAGRI, Università degli Studi di Firenze, Piazzale delle Cascine 18, 50144 Firenze, Italia.
Elena Paoletti
Istituto di Ricerca sugli Ecosistemi Terrestri (IRET), Consiglio Nazionale delle Ricerche (CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italia.

Pubblicato 2022-12-02

Parole chiave

  • O3 troposferico,
  • Dose fitotossica di ozono,
  • Indicatori di salute delle foreste,
  • Monitoraggio forestale

Come citare

Manzini, J., Hoshika, Y., Baesso Moura, B., & Paoletti, E. (2022). Impatto dell’ozono troposferico sulle foreste italiane: applicazione di metodologie innovative per il monitoraggio in foresta: . L’Italia Forestale E Montana, 77(5), 185–195. https://doi.org/10.36253/lifm-1078

Abstract

L’ozono troposferico (O3) è uno dei principali inquinanti atmosferici e può arrecare gravi danni agli ecosistemi forestali a causa del suo elevato potenziale fitotossico. Il monitoraggio dell’O3 in foresta è, pertanto, fondamentale per poterne studiare l’effetto nocivo sulla vegetazione e stabilire i livelli critici per la protezione del patrimonio boschivo. In questo lavoro sono riportati i risultati dell’applicazione di innovative stazioni di monitoraggio attivo in foresta, installate nell’ambito del progetto europeo LIFE MOTTLES (MOnitoring ozone injury for seTTing new critical LEvelS). Le aree sperimentali sono state selezionate all’interno della rete CON.ECO.FOR, e in esse sono stati stimati due diversi indici cumulati basati sull'esposizione all’O3 in atmosfera (AOT40) e sul flusso stomatico di O3 (PODY), poi correlati ad indicatori di salute della vegetazione quali sintomi visibili fogliari e defogliazione della chioma, valutati sia all’interno (ITP) che lungo il margine della foresta (LESS), per derivare i livelli critici basati sull'esposizione (CLec) e sul flusso (CLef). I risultati suggeriscono CLec e CLef rispettivamente di 17000 e 19000 ppb h AOT40 e 12 e 5 mmol m-2 POD1 per conifere e latifoglie. Il monitoraggio attivo consente di poter definire e aggiornare regolarmente livelli critici e standard legislativi per la protezione delle foreste ed inoltre, rispetto al tradizionale monitoraggio passivo, è risultato essere anche maggiormente sostenibile da un punto di vista ambientale, economico e sociale sul lungo periodo.

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