Research on Adjustment between Forest Economic Policy and Forest Environmental Policy

这项研究的目的是澄清如何调整森林的经济用途与森林的环境用途。为此，笔者构建了一个集森林资源模型、森林经济模型和森林环境保护模型于一体的“森林资源-森林经济-森林环境保护模型（森林REE模型）"。笔者提出了森林的经济利用和环境利用的调整方针，阐明了日本森林资源和林业的现状，指出了用森林的环境保护方针来调整森林的经济政策是一个紧迫的课题。在传统的森林经济学框架内解决这一问题是不可能的。森林经济学需要一种新的范式。在对传统经济学和生态经济学的思想进行分析的基础上，提出了建立在生态经济学框架下的新森林经济学。为了调整森林经济政策和森林环境保护政策，有必要构建基于生态经济学观点的森林REE模型。为处理与森林有关的活动的多尺度时间框架，宜建立一个基于系统动力学的模型，即，一个长期的生产过程，用于森林的生长和短期的生产过程，用于木材的切割和加工。我们使用STELLA软件构建系统动力学模型。本文讨论了用STELLA软件构建森林REE模型时应考虑的问题，将森林资源模型、森林经济模型和森林环境保护模型三个模型结合起来，构建了森林REE模型的STELLA模型，并就模拟模型和模拟结果进行了讨论，并对今后森林经济和森林环境的调整政策进行了探讨。

The aim of this research is to clarify how to adjust economic uses of forests with environmental uses of forests. To achieve this, I construct a "forest resources-forest economy-forest environmental conservation model (REE model of forest)", which integrate a forest resources model, a forest economy model, and a forest environmental conservation model. I propose an adjustment policy for economic uses of forests and environmental uses of forests.I clarify the current states of Japanese forest resources and forestry, and that it is an urgent problem to adjust an economic policy for forests with an environmental conservation policy of forests. It is impossible to solve this problem in the frame of traditional forest economics. A new paradigm is necessary for forest economics. After discussing the ideas of traditional economics and ecological economics, I argue new forest economics based on the frame of ecological economics. To adjust economic policies for forests and environmental conservation policies for forests, it is necessary to construct a REE model of forest based on the view of ecological economics. It is appropriate to construct a model based on system dynamics for handling multi-scales of time frame of activities concerning with forests, i.e., a long term production process for growing forests and a short term production process for cutting and processing of timbers.We use STELLA,the software for constructing system dynamics models. I discuss many issues to be considered during constructing a REE model of forest with STELLA.Constructing a STELLA model for a REE model of forest, I integrate three model, a forest resources model, a forest economy model, and a forest environmental conservation model.I intend to present articles concerning with simulation models and those results, and discussing adjustment policies for forest economy and forest environment in the near future.