2019 Fiscal Year Final Research Report

Mechanism of resource dependency for food production in terms of total material requirement

Research Project

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Project/Area Number	16KT0030
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Multi-year Fund
Section	特設分野
Research Field	Food Cycle Research
Research Institution	Ritsumeikan University
Principal Investigator	YAMASUE EIJI 立命館大学, 理工学部, 教授 (90324673)
Co-Investigator(Kenkyū-buntansha)	マクレランベンジャミン京都大学, エネルギー科学研究科, 准教授 (10723455) 松八重一代東北大学, 環境科学研究科, 教授 (50374997)
Project Period (FY)	2016-07-19 – 2020-03-31
Keywords	関与物質総量 / 食料 / レシピ / 献立 / ビッグデータ
Outline of Final Research Achievements	In this study, we have proposed a framework to quantify mining activities relevant to food production in terms of total material requirement (TMR), which has been applied to food production. Targeted foodstuffs were 41 types of domestic vegetables, 8 types of fruit, 16 types of seafood, and 5 types of livestock. Domestic and foreign livestock feed was also considered. Generally, contributions by energy were dominant for vegetables cultivated in a greenhouse and fertilizer inputs were dominant for non-greenhouse cultivation. On the other hand, the specific TMR of livestock feed was relatively small compared to vegetables. The specific TMR for seafood production by set net fishing was relatively low compared to other fishing and the effects of fishing tools and energy were negligibly small, the effect of energy ascribed to fuel was dominant for other fishing types using boats. For livestock, the specific TMR for a beef cow was 5~6 times as high as that for pigs or broiler hens.
Free Research Field	産業エコロジー
Academic Significance and Societal Importance of the Research Achievements	本研究課題では，「食」に関して資源端への依存構造を解明することに挑戦した．このような研究事例は，農学や産業エコロジー学分野においてもほとんど見られず，学術的にもインパクトの高い成果を提供できた．関与物質総量は第二次循環基本計画から推移をモニターすべき指標として注目されているが，本研究を遂行することで，世界に先駆けて食に関する関与物質総量データを整備でき，近未来における食料セキュリティの向上，すなわち食料資源管理戦略について社会的に貢献できることが期待できる．特に，我が国が食糧供給に関わる資源安全保障を考える上で大きな意義があったと考えられる．