Protected areas play an important role in the conservation and protection of biodiversity of particular territories, especially of ecosystems that provide resources for living organisms, including human beings. Different studies highlight the importance of biodiversity and its associated benefits in terms of ecosystem services of protected areas. The economic assessment of ecosystem services and biodiversity becomes a viable solution to help the policy maker to make decisions on the environmental preservation of these areas according to the Agenda 2030 for Sustainable Development. Nonetheless, very few studies provide an economic evaluation of the benefits of protected areas. To advance the current debate on the economic evaluation of the benefits provided by protected areas, the present paper purposes an integrated approach. It presents an overview of main ecosystem services’ mapping techniques currently available to researchers and policy makers and offers a systematic review carried out for the period 2015–2020 at an international level. The main findings are particularly attractive for the Gargano National Park (GNP) in the south of Italy, which is recognised as being a biodiversity hot spot at global level. The current study provides useful guidance for the assessment of trade-offs, the support to policy makers, and the provision of efficient allocation of public resources for protected areas.
Since the publication of the Millennium Ecosystem Assessment, the research of ecosystem services valuation has seen an exponential growth with a consequent development, improvement, and spread of different qualitative and quantitative methods. The interest is due to the benefits that ecosystem services provide for human wellbeing. A large part of ecosystem services is provided by the so-called forest ecosystem services (FES) in both protected and non-protected areas. The aim of the present study is to investigate key variables driving the FES value at the global level. These include, other than socio-economic information, the ecosystem services' quality condition and the location of the study. The research uses a meta-regression of 478 observations from 57 studies in the time span 1992–2021 retrieved from the online Ecosystem Service Valuation Database (ESVD). The main results show that both the ES quality condition and spatial aspect are relevant factors in determining the estimated value of FES, suggesting the existence of a difference in the forest value from a North-South perspective. The investigation of an economic assessment of FES is advised as a key research trend in the immediate future. This allows to close the gap between the global North and South and favors the implementation of adequate socio-economic and environmental governance for an efficient forest management.
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