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Calculate ecological and social resilience indicators for natural resource management using spatial information technology

Research Project

Project/Area Number 18K11770
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 64060:Environmental policy and social systems-related
Research InstitutionTokyo University of Agriculture

Principal Investigator

SHIMOJIMA HIJIRI  東京農業大学, 地域環境科学部, 准教授 (60439883)

Co-Investigator(Kenkyū-buntansha) 鈴木 伸一  東京農業大学, 地域環境科学部, 教授 (70311272)
山崎 晃司  東京農業大学, 地域環境科学部, 教授 (40568424)
関岡 東生  東京農業大学, 地域環境科学部, 教授 (00287450)
土屋 薫  江戸川大学, 社会学部, 教授 (60227428)
Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
KeywordsGIS / リモートセンシング / UAV / 土地被覆 / ケラマジカ / 慶良間諸島 / 原単位 / 景観変遷 / 植生調査 / レジリエンス / 慶良間諸島国立公園 / 空間情報技術
Outline of Final Research Achievements

The forested areas as a percentage of the total land area of the four islands were 15% in 1962, 31% in 1977, 47% in 1984, 51% in 1996, and 59% in 2001. According to existing surveys, the total population of kerama deer in the four islands was approximately 60 in the 1970s, 230 in the 1990s, and 120 in the 2000s. It is estimated that the forest area (unit) per kerama deer was roughly 3.5 ha in the 1970's, 1.7 ha in the 1990's, and 3.9 ha in the 2000's. It is inferred that in around 1995, the kerama deer population increased in density in relation to the forest area. The changes in Kerama deer dynamics and land use have been mainly affected by demographic changes and Island Livelihoods, this is closely related to the changes in lifestyle and culture.

Academic Significance and Societal Importance of the Research Achievements

日本全国でニホンジカによる農作物被害、食害等の問題が深刻化しているが、慶良間諸島においても地域住民とケラマジカの衝突が生じている。本研究の学術的意義及び社会的意義は、1.今日まで科学的に把握されていなかった慶良間諸島におけるケラマジカの個体数と土地利用との関係について、多時期リモートセンシング画像より定量的に明らかにした点、2.天然記念物として指定され琉球政府時代における住民のケラマジカに対する認識について、当時を知る人々の世代交代が進む中、史実を記録に残し、後世に伝えることの重要性、である。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (3 results)

All 2022 2018

All Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Relationship Sociocultural Background of kerama deer and transition of Land cover in the Kerama Islands, Okinawa2022

    • Author(s)
      Hijiri SHIMOJIMA,Shun ITO,Shin'ichi SUZUK,Kohji YAMAZAKI,Haruo SEKIOKA ,Kaoru TSUCHIYA
    • Organizer
      2022 IASNR Conference Program
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 土地被覆変遷の定量化によるケラマジカ個体数の原単位算出の試み2022

    • Author(s)
      伊藤 駿・下嶋 聖・鈴木伸一・土屋 薫・山崎晃司・ 関岡東生
    • Organizer
      第133日本森林学会大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 多時期のリモートセンシング画像を用いたケラマジカ生息環境の変遷の把握2018

    • Author(s)
      下嶋聖・鈴木伸一・山﨑晃司・関岡東生・土屋薫
    • Organizer
      日本景観生態学会 第28回宮崎大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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