Efficient Use of Regional Resources and Sustainable Agriculture.

这项工程是由资源经济学、环境经济学、森林保护和乡村规划四个科学领域共同完成的，从资源经济学的角度来看，两项政策的结合产生了社会经济剩余最大化。从环境经济学的角度出发，采用Hedonic方法和条件价值评估法对香川县池塘的经济价值进行了评估；从森林保护的角度，对长野县赤泽县赤川森林保护区内的一种古老的木通林的结构和动态进行了研究。本研究有助于建立一种新的森林经营方式。从乡村规划的角度出发，在山区建立了一种新型的乡村规划方式。

This project was done by four scientific fields that are Resource Economics, Environmental Economics, Forest Conservation and Rural Planning.From Resource Economics stand point, combination of two policies results maximizing the social economic surplus. One of the policies is use of organic waste compost for agricultural production and the other is charging a tax to the organic waste.From Environmental Economics stand point, we evaluated economic value of ponds in Kagawa Prefecture by Hedonic method and Contingent Valuation Method.From Forest Conservation stand point, we studied about structure and dynamics of an old-growth Chamaecyparis forest in the Akasawa Forest Reserve in Nagano Prefecture. This study contributes to establishing a new forest management method.From Rural Planing stand point, we established a new type of rural planing method in a mountain regional area.