岡山県新庄村における食料・再生可能エネルギーの需給バランス

 
Supply-Demand Balances of Food and Energy in Mountainous Rural Areas towards Ensuring Regional Sustainability: Case Study of Shinjo Village, Okayama, Japan


Abstract

エネルギー・食糧の安全保障、地方の自立性向上の観点から、地域におけるサステイナビリティの向上が求められている。そのためには、地域資源の潜在的可能性を再評価し、再生可能な資源の需給バランスを確保することが極めて重要である。本研究では、農山村地域に位置し、単独村政運営を選択している基礎自治体である岡山県真庭郡新庄村を対象に、食料および再生可能エネルギーに関する需給バランスの整理を行った。

Regional sustainability with resilience is becoming an important concept. In particular, securing self-sufficiency of food and energy within local communities, together with local independence, is one of the essential conditions for realizing regional sustainability. In order to discuss such self-sufficiency of food and energy, re-valuing local natural resources and enhancing a proper balance between supply and demand of renewable resources within a region is of critical importance. However, studies which address this aspect are very scant.

Shinjo village in Okayama prefecture, Japan is a unique municipality trying to enhance self-sufficiency in terms of energy, food and financial conditions, aiming to avoid a possible merger with other bigger cities. Unique visions and proper measures are needed for the village to keep the self-sufficiency viable and to pursue regional sustainability especially at a time when the labor force is shrinking due to the aging population and resultant declining local economy.

In this study, we aim to discuss the outlooks of self-sufficiency level for Shinjo village especially from the viewpoint of supply and demand of food and renewable energy (biomasses). We first looked into geographical data and examined ecological conditions and local landscapes, which serve as the basis for evaluating local natural resources. We then developed inventory data of food and renewable energy available within the region by applying material flow analysis (MFA). Based upon the information we evaluated the regional sustainability from the viewpoint of demand and supply balance for food and energy as well as self-reliance of economic conditions.

We found that Shinjo village has abundant natural resources more than the amount originally assumed from the existing official statistical data. We proposed institutional and technical options as well as policy measures, which utilize these rich resources, to further enhance regional sustainability of the village.


Conferences

LCA Food 2012, Saint-Malo, France, 2-4 October 2012, pp.909-910.
Proceedings PDF (29.9 M)

第7回日本LCA学会研究発表会, 東京理科大学 野田キャンパス, 千葉, 2012年3月7-9日.
Abstract PDF (376 K)

EcoDesign 2011, Kyoto, Japan, 30 November - 2 December 2011, pp.11-14.
Springer Link

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