Linee guida per la valutazione della resilienza delle foreste Mediterranee ai cambiamenti climatici [Guidelines for assessing the resilience of Mediterranean forests to climate change]

Abstract

We have defined optimal management models for improving or strengthening the resilience of forest environments: in particular, five best management practices aiming at improving the Mediterranean forests resilience with reference to the desertification risk. The 5 Best ManagementPractices are: BMP1 - Actions favoring mixing of species and hydrogeological stability of forests; BMP2 - Renaturalization of forest plantations; BMP3 - Remedial measures and restoration of degraded forests; BMP4 - Actions aimed at enhancing complex structural forests; BMP5 - Actions favoring connectivity in agro-forestry systems. The best management practices have been then applied adapting them to 16 different intervention types and they have been tested on 10 regional forest categories on an overall surface of 120 hectares. The intervention areas make up a set of testing areas according to the different intervention types carried out. Finally, we have defined the forest resilience Assessment Chart. The Chart has been worked out to improve the sylviculturist’s intervention assessment in order to grant a proper application of the forest resilience intervention practices. This chart includes 10 questions on parameters having an influence on the resilience and on the forest adaptation capacity to climate changes. The parameters are: current and dynamic Forest Category; Specific tree Composition; Vegetation Layers covering; Forest vertical structure; Forest horizontal structure; Dendrometric parameters; Species indicating disturbance; Ground cover; Regeneration; Internal and external steadiness.