A Decision Support System for trade-off analysis and dynamic evaluation of forest ecosystem services

This paper presents an open-source Decision Support System (DSS) able to quantify the economic value of forest ecosystem services and their dynamic trade-offs. Provisioning, regulation and support services, as well as cultural services, can be evaluated by the model. Best management forestry practices can be identified by optimizing specific objective functions, e.g., maximizing the economic value or identifying the ideal rotation period. The model was applied to a silver fir (Abies alba Mill.) stand in central Italy as a case study. Results show the importance of economic parameters (e.g., discount rate) and management practices (e.g., presence/absence of silvicultural thinning) in defining forest values. The main strengths and weaknesses of the DSS are discussed in light of its potential for application in the sector of Payment for Ecosystem Services.