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Building a new guideline for grassland restoration: based on soil chemical properties as the foundation of ecosystems

Research Project

Project/Area Number 18H03415
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 64040:Social-ecological systems-related
Research InstitutionAdministrative Agency for Osaka City Museums

Principal Investigator

Yokogawa Masashi  地方独立行政法人大阪市博物館機構(大阪市立美術館、大阪市立自然史博物館、大阪市立東洋陶磁美術館、大阪, 大阪市立自然史博物館, 学芸員 (30649794)

Co-Investigator(Kenkyū-buntansha) 平舘 俊太郎  九州大学, 農学研究院, 教授 (60354099)
堤 道生  国立研究開発法人農業・食品産業技術総合研究機構, 西日本農業研究センター, 上級研究員 (70373248)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Keywords半自然草原 / 草原再生 / 植生 / 種組成 / 土壌化学性 / 発芽 / 野外操作実験 / 自然再生 / 植物群集 / 種多様性
Outline of Final Research Achievements

In order to more effectively conserve plants of semi-natural grasslands, which have been declining rapidly in recent years, we evaluated the establishment of species composition in semi-natural grasslands using three approaches: 1) field surveys, 2) indoor experiments, and 3) field manipulation experiments. Field studies revealed that past soil modification can cause long-term reductions in wild plant diversity, and soil chemistry can have a direct negative impact on wild plants diversity. 2. Indoor cultivation experiments revealed that plant growth conditions are strongly related to soil chemistry, particularly under eutrophic conditions, native plant growth may be disadvantaged. 3. Field manipulation experiments using chemical materials were conducted to verify the possibility of grassland restoration, but no clear results were obtained.

Academic Significance and Societal Importance of the Research Achievements

過去100年程度の間に半自然草原が激減し、多くの草原生植物が絶滅の危機に瀕している中、日本各地で草原再生が進められているが、その種組成の復元についてはうまくいっていないケースも多い。本研究によって、過去の土壌改変が半自然の種組成を長期間に渡って変えてしまうこと、富栄養条件では在来植物の生育が相対的に不利になるころ、などが明らかになった。これらの成果は保全対象となる場所の過去の土地利用履歴や現在の土壌化学性を詳しく評価することで、より効率的に草原保全が進められる可能性を示しており、今後の草原再生の可能性をより広げるものである。

Report

(5 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (11 results)

All 2023 2022 2021 2020 2019

All Journal Article (6 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (5 results)

  • [Journal Article] Discovery a specimen of Suaeda glauca (Bunge) Bunge collected from Osaka Prefecture, Japan in 18962023

    • Author(s)
      横川 昌史
    • Journal Title

      大阪市立自然史博物館研究報告 = Bulletin of the Osaka Museum of Natural History

      Volume: 77 Pages: 51-56

    • DOI

      10.20643/00001674

    • ISSN
      0078-6675
    • URL

      http://id.nii.ac.jp/1504/00001674/

    • Year and Date
      2023-03-31
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 大阪府のヤマサギソウの分布記録の追記:信太山産の標本について2023

    • Author(s)
      横川 昌史
    • Journal Title

      Nature Study

      Volume: 68 Pages: 10-10

    • Related Report
      2021 Annual Research Report
  • [Journal Article] A single application of fertilizer can affect semi-natural grassland vegetation over half a century2022

    • Author(s)
      Tsutsumi Michio、Hiradate Syuntaro、Yokogawa Masashi、Yamakita Eri、Inoue Masahito、Takahashi Yoshitaka
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 11 Pages: e0275808-e0275808

    • DOI

      10.1371/journal.pone.0275808

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Records of cancelled spring burning of semi-natural grasslands in Japan due to the COVID-19 in 20202021

    • Author(s)
      横川 昌史
    • Journal Title

      大阪市立自然史博物館研究報告 = Bulletin of the Osaka Museum of Natural History

      Volume: 75 Pages: 107-111

    • DOI

      10.20643/00001517

    • NAID

      120007002761

    • ISSN
      0078-6675
    • URL

      http://id.nii.ac.jp/1504/00001517/

    • Year and Date
      2021-03-31
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 茨木市で見つけたコキンバイザサ2020

    • Author(s)
      高田みちよ・横川昌史・梅原 徹
    • Journal Title

      Nature Study

      Volume: 66(6) Pages: 6-7

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 半自然草原の管理放棄に伴う植物種ごとの欠落パターン:栃木県日光市土呂部の例2019

    • Author(s)
      横川昌史・増井太樹・飯村孝文
    • Journal Title

      生物科学

      Volume: 70 Pages: 225-229

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] シカ過採食下の山頂石灰岩草原の成れの果て植生:アメリカオニアザミの定着について2023

    • Author(s)
      横川昌史、太田陽子
    • Organizer
      第70回日本生態学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] セイタ カアワダチソウ,キキョウ,カワラケツメイの生育に及ぼす土壌化学特性の影響2021

    • Author(s)
      竹原芽衣子・津守玲・森裕樹・平舘俊太郎
    • Organizer
      日本 生態学会第68回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 49年前の草地改良がシバ草地の 植生と土壌化学性に及ぼす影響2021

    • Author(s)
      堤道生・平舘俊太郎・横川昌史・井上雅仁・高橋佳孝
    • Organizer
      日本草地学会(新潟オンライン大会)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 宝満川堤防法面におけるセイバンモロコシの分布と土壌の植物養分可給性の関係2020

    • Author(s)
      津守玲・山根明・森裕樹・平舘俊太郎
    • Organizer
      生態学会第67回全国大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 過去の土壌改変が半自然草原植生に与える影響:蒜山地域の例2020

    • Author(s)
      横川昌史・増井太樹・堤道生・平舘俊太郎
    • Organizer
      生態学会第67回全国大会
    • Related Report
      2019 Annual Research Report

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Published: 2018-04-23   Modified: 2024-01-30  

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