Abstract
Forest ecosystem services are fundamental for human life. To protect and increase forest ecosystem services, the driving factors underlying changes in forest ecosystem service values must be determined to properly implement forest resource management planning. This study examines the driving factors that affect changes in forest ecosystem service values by focusing on regional forest characteristics using a dataset of 47 prefectures in Japan for 2000, 2007, and 2012. We applied two approaches: a contingent valuation method for estimating the forest ecosystem service value per area and a decomposition analysis for identifying the main driving factors of changes in the value of forest ecosystem services. The results indicate that the value of forest ecosystem services has increased due to the expansion of forest area from 2000 to 2007. However, factors related to forest management and ecosystem service value per area have contributed to a decrease in the value of ecosystem services from 2000 to 2007 and from 2007 to 2012, respectively.
Highlights
Ecosystem services play a critical role in environmental protection and sustainable economic production [1]
Corporate forest management of supply chains is required by investors, and the Carbon Disclosure Project (CDP) reported [4] that 180 global companies responded to a questionnaire on forest commodities risks, forest risk assessments, forest risk processes, etc. related to production supply chain processes
This study examined the decomposed factors that contribute to changes in forest ecosystem services values in Japan, with a focus on two periods
Summary
Ecosystem services play a critical role in environmental protection and sustainable economic production [1]. In this sense, such a method would facilitate the development of effective environmental policies and subsidy systems Based on this background, we attempted to develop a research framework that can perform a decomposition analysis of ecosystem services by focusing on three determining factors: (1) the value per area of forest ecosystem services; (2) the efforts of forest management; and (3) the scale of the forest area. Based on this framework, we decompose the change in forest ecosystem service value by incorporating these three factors in the decomposition analysis framework. After estimating the value per area, a decomposition analysis to the changes in the ecosystem services is applied by focusing on forest management efforts and on the scale of the forest area. First step estimation Determinants of forest ecosystem service value per area (1) Quality of forest resources (tree age, tree density) (2) Value evaluation by local citizen (Willingness to pay) (3) Tree type (planted/natural, needle leaf/broad leaf)
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