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Potentials of Carbon sink through afforestation ensuring food security and protecting the environment

Research Project

Project/Area Number 22K21331
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 1101:Environmental analyses and evaluation, environmental conservation measure and related fields
Research InstitutionRitsumeikan University

Principal Investigator

Hasegawa Tomoko  立命館大学, 理工学部, 准教授 (60615524)

Project Period (FY) 2022-08-31 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords気候変動緩和 / 植林 / 炭素吸収技術 / バイオエネルギー / 二酸化炭素回収 / 植林炭素吸収 / 食料安全保障 / 生態系保全
Outline of Research at the Start

本課題は、世界全域を対象として気候長期目標と食料安全保障、生態系保全を同時に考慮した、植林による炭素吸収ポテンシャルの推計手法を開発する。本手法では、高い空間解像度の世界土地利用分配モデルでこれまで抽象的に扱ってきた樹種を詳細に扱い、樹種選択を数理計画問題内で内生的に扱うことで、生態系を考慮した植林炭素吸収量の推計を可能にする。それを全世界に適用し、持続可能な食料・土地利用システムと整合的な植林面積・樹種、炭素吸収ポテンシャルを定量的なシナリオとして示す。

Outline of Final Research Achievements

We quantitatively demonstrated how selecting forest types for afforestation can increase carbon sequestration without compromising global food and land sustainability using an integrated assessment model. The results showed that choosing carbon-intensive forest types for afforestation can increase carbon absorption by up to 25% compared to conventional forest types. However, if afforestation is implemented inappropriately on a large scale, the land-use efficiency for carbon removal would decrease compared to bioenergy with carbon capture and storage (BECCS), leading to adverse effects on economic, food, and land systems. This could result in expanded land use for carbon removal, increased food prices, and higher hunger risks. These findings suggest the necessity of implementing carbon-intensive afforestation alongside other complementary measures.

Academic Significance and Societal Importance of the Research Achievements

植林は二酸化炭素除去の主要技術だが、食料と土地のシステムに悪影響を及ぼす可能性があると言われている中、本研究では、植林が不適切に実施されると、経済、食料、土地システムを悪化させ、炭素除去のための土地拡大や飢餓リスクの増大につながることを明らかにした。また、炭素集約型の森林を補完的な対策とともに導入することで、食料と土地の持続可能性への悪影響を軽減できることを明らかにした。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (17 results)

All 2024 2023 2022 Other

All Int'l Joint Research (6 results) Journal Article (9 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 9 results,  Open Access: 9 results) Presentation (1 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] iDiv/Karlsruhe Institute of Technology(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] PBL(オランダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Maryland/World Wildlife Fund/Yale University(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] CSIRO Environment(オーストラリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] United Nations Environment Programme/Natural History Museum/Environmental Change Institute(英国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Global trends and scenarios for terrestrial biodiversity and ecosystem services from 1900 to 20502024

    • Author(s)
      Pereira Henrique M.、Martins Ines S.、Rosa Isabel M. D.、Kim HyeJin、Leadley Paul、Popp Alexander、van Vuuren Detlef P.、Hurtt George、Quoss Luise、Arneth Almut、Baisero Daniele、Bakkenes Michel、Chaplin-Kramer Rebecca、Chini Louise、Di Marco Moreno、Ferrier Simon、Fujimori Shinichiro、...Hasegawa Tomoko、et al.
    • Journal Title

      Science

      Volume: 384 Issue: 6694 Pages: 458-465

    • DOI

      10.1126/science.adn3441

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Careful selection of forest types in afforestation can increase carbon sequestration by 25% without compromising sustainability2024

    • Author(s)
      Hasegawa Tomoko、Fujimori Shinichiro、Ito Akihiko、Takahashi Kiyoshi
    • Journal Title

      Communications Earth & Environment

      Volume: 5 Issue: 1

    • DOI

      10.1038/s43247-024-01336-4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reduction Potential of Greenhouse Gas Emissions from Agriculture and Livestock Sector in Asian countries2023

    • Author(s)
      平野拳士朗、瓜本千紗、長谷川知子
    • Journal Title

      Japanese Journal of JSCE

      Volume: 79 Issue: 27 Pages: n/a

    • DOI

      10.2208/jscejj.23-27032

    • ISSN
      2436-6021
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ANALYSIS OF IMPACT ON FOOD TRADE TO FRESHWATER SUPPLY-DEMAND IN ASIAN REGION2023

    • Author(s)
      近藤光,山口陽平,長谷川知子
    • Journal Title

      Japanese Journal of JSCE

      Volume: 79 Issue: 27 Pages: n/a

    • DOI

      10.2208/jscejj.23-27015

    • ISSN
      2436-6021
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] GLOBAL ASSESSMENT OF THE TROPOSPHERIC OZONE IMPACT ON CO<sub>2</sub> SEQUESTRATION BY VEGETATION AND ITS IMPLICATIONS FOR CLIMATE CHANGE MITIGATION MEASURES2023

    • Author(s)
      平原颯太郎、関沢賢、藤森真一郎、大城賢、伊藤昭彦、長谷川知子
    • Journal Title

      Japanese Journal of JSCE

      Volume: 79 Issue: 27 Pages: n/a

    • DOI

      10.2208/jscejj.23-27012

    • ISSN
      2436-6021
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of climate and socioeconomic changes on fire carbon emissions in the future: Sustainable economic development might decrease future emissions2023

    • Author(s)
      Park Chae Yeon、Takahashi Kiyoshi、Li Fang、Takakura Junya、Fujimori Shinichiro、Hasegawa Tomoko、Ito Akihiko、Lee Dong Kun、Thiery Wim
    • Journal Title

      Global Environmental Change

      Volume: 80 Pages: 102667-102667

    • DOI

      10.1016/j.gloenvcha.2023.102667

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Poverty and inequality implications of carbon pricing under the long-term climate target2022

    • Author(s)
      Zhao Shiya、Fujimori Shinichiro、Hasegawa Tomoko、Oshiro Ken、Sasaki Katsuya
    • Journal Title

      Sustainability Science

      Volume: 17 Issue: 6 Pages: 2513-2528

    • DOI

      10.1007/s11625-022-01206-y

    • NAID

      40022650965

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Land-based climate change mitigation measures can affect agricultural markets and food security2022

    • Author(s)
      Fujimori Shinichiro、Wu Wenchao、Doelman Jonathan、Frank Stefan、Hristov Jordan、Kyle Page、Sands Ronald、van Zeist Willem-Jan、Havlik Petr、Dom?nguez Ignacio P?rez、Sahoo Amarendra、Stehfest Elke、Tabeau Andrzej、Valin Hugo、van Meijl Hans、Hasegawa Tomoko、Takahashi Kiyoshi
    • Journal Title

      Nature Food

      Volume: 3 Issue: 2 Pages: 110-121

    • DOI

      10.1038/s43016-022-00464-4

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] COMPARISON OF GLOBAL AIR POLLUTION IMPACTS UNDER THE DIFFERENT HORIZONTAL RESOLUTIONS2022

    • Author(s)
      渡邉 諒一、上谷 明生、関沢 賢、藤森 真一郎、長谷川 知子、大城 賢
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 78 Issue: 5 Pages: I_251-I_262

    • DOI

      10.2208/jscejer.78.5_I_251

    • ISSN
      2185-6648
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] How do we reconcile a long-term climate goal and sustainable development?2022

    • Author(s)
      Tomoko Hasegawa
    • Organizer
      ECOSOC High-level Segment
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] Global trends and scenarios for terrestrial ...

    • URL

      https://www.science.org/doi/10.1126/science.adn3441

    • Related Report
      2023 Annual Research Report

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Published: 2022-09-01   Modified: 2025-01-30  

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