Sustainable Land Management, Adaptive Silviculture, and New Forest Challenges: Evidence from a Latitudinal Gradient in Italy

Gianfranco Fabbio, Paolo Cantiani, Fabrizio Ferretti, Umberto Di Salvatore, Giada Bertini, Claudia Becagli, Ugo Chiavetta, Maurizio Marchi and Luca Salvati
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Gianfranco Fabbio: Council for Agricultural Research and Economics (CREA), Research Centre for Forestry and Wood, Viale S. Margherita 80, I-52100 Arezzo, Italy
Paolo Cantiani: Council for Agricultural Research and Economics (CREA), Research Centre for Forestry and Wood, Viale S. Margherita 80, I-52100 Arezzo, Italy
Fabrizio Ferretti: Council for Agricultural Research and Economics (CREA), Research Centre for Forestry and Wood, Viale S. Margherita 80, I-52100 Arezzo, Italy
Umberto Di Salvatore: Council for Agricultural Research and Economics (CREA), Research Centre for Forestry and Wood, Viale S. Margherita 80, I-52100 Arezzo, Italy
Giada Bertini: Council for Agricultural Research and Economics (CREA), Research Centre for Forestry and Wood, Viale S. Margherita 80, I-52100 Arezzo, Italy
Claudia Becagli: Council for Agricultural Research and Economics (CREA), Research Centre for Forestry and Wood, Viale S. Margherita 80, I-52100 Arezzo, Italy
Ugo Chiavetta: Council for Agricultural Research and Economics (CREA), Research Centre for Forestry and Wood, Viale S. Margherita 80, I-52100 Arezzo, Italy
Maurizio Marchi: Council for Agricultural Research and Economics (CREA), Research Centre for Forestry and Wood, Viale S. Margherita 80, I-52100 Arezzo, Italy
Luca Salvati: Council for Agricultural Research and Economics (CREA), Research Centre for Forestry and Wood, Viale S. Margherita 80, I-52100 Arezzo, Italy

Sustainability, 2018, vol. 10, issue 7, 1-14

Abstract: Aimed at reducing structural homogeneity and symmetrical competition in even-aged forest stands and enhancing stand structure diversity, the present study contributes to the design and implementation of adaptive silvicultural practices with two objectives: (1) preserving high wood production rates under changing environmental conditions and (2) ensuring key ecological services including carbon sequestration and forest health and vitality over extended stand life-spans. Based on a quantitative analysis of selected stand structure indicators, the experimental design was aimed at comparing customary practices of thinning from below over the full standing crop and innovative practices of crown thinning or selective thinning releasing a pre-fixed number of best phenotypes and removing direct crown competitors. Experimental trials were established at four beech forests along a latitudinal gradient in Italy: Cansiglio, Veneto; Vallombrosa, Tuscany; Chiarano, Abruzzo; and Marchesale, Calabria). Empirical results indicate a higher harvesting rate is associated with innovative practices compared with traditional thinning. A multivariate discriminant analysis outlined significant differences in post-treatment stand structure, highlighting the differential role of structural and functional variables across the study sites. These findings clarify the impact of former forest structure in shaping post-treatment stand attributes. Monitoring standing crop variables before and after thinning provides a basic understanding to verify intensity and direction of the applied manipulation, the progress toward the economic and ecological goals, as well as possible failures or need for adjustments within a comprehensive strategy of adaptive forest management.

Keywords: adaptive forest management; pro-active silviculture; experimental trial; beech; Italy (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
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