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Physiological and Ecological Responses of Cerasus campanulata planted in urban areas: Investigating the Causes of Declining Tree Vigor

Research Project

Project/Area Number 21K14874
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 39070:Landscape science-related
Research InstitutionTokyo University of Agriculture

Principal Investigator

Kanazawa Yumiko  東京農業大学, 地域環境科学部, 准教授 (50572517)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2023: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2022: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsサクラ / 都市 / カンヒザクラ / 環境ストレス / 土壌 / 滞水 / 耐寒性
Outline of Research at the Start

サクラ類は都市において親しまれてきた樹木であり、近年は樹形がコンパクトな樹種の要望から、カンヒザクラ系統の植栽事例がみられるようになった。しかし、これら植栽個体の衰退事例が報告されており、特に冠水耐性、耐寒性に注目して、生理生態的な要因究明を行うことが必要であると考えられた。そこで本研究の課題は、都市に生育するサクラ(カンヒザクラ系統)の衰退要因を、異なる冠水条件、温度条件下での生育試験および、体内糖分分析によって究明することとした。

Outline of Final Research Achievements

This study investigated decline factors in Cerasus campanulata and its cultivars planted in urban areas. In pot experiments, growth decline was observed under waterlogged conditions, but good growth was observed under drained conditions. Field surveys showed a negative correlation between soil gas phase ratio and growth decline factors, and a positive correlation between soil liquid phase ratio and growth decline factors. A positive correlation was also shown between soil surface hardness and decline factors, suggesting that soil conditions around the root system affect growth and that poor drainage negatively affects the growth of C. campanulata (and its cultivars). Analysis of seasonal variation in sugar content showed that C. campanulata may tolerate cold to some extent, but declining individuals tend to have lower sugar content. These results suggest the importance of good drainage conditions and winter low temperature measures in C. campanulata.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、制限の多い都市の植栽環境において、カンヒザクラの生育に影響を与える要因を理解し適切な管理の一助となる。また、一連の調査によって衰退の指標として利用できる調査項目が示され、対照として用いた他のサクラ類に対しても応用ができる。これにより、都市におけるサクラの適切な種類選択と健全な育成に役立てることができる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (3 results)

All 2023 2022 2021

All Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] Relationships between internal decay and root system in Cerasus×yedoensis `Someiyoshino`2023

    • Author(s)
      Ayaka ABE, Yumiko KANAZAWA, Kojiro SUZUKI, and Hitoshi UCHIDA
    • Organizer
      The 10th EAFES International Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ソメイヨシノにおける生育条件の違いによる活力度への影響2022

    • Author(s)
      大熊普賢,金澤弓子
    • Organizer
      日本造園学会関東支部大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Soil Physical Condition For Growth of Cerasus Campanulata2021

    • Author(s)
      Ying JIN, Yumiko KANAZAWA, Kojiro SUZUKI
    • Organizer
      International Society of Arboriculture 2021 International Virtual Conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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