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Air pollution and forest damage

Research Project

Project/Area Number 06451168
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Environmental dynamic analysis
Research InstitutionHIROSHIMA UNIVERSITY

Principal Investigator

NAKANE Kaneyuki  Hiroshima U.Fac.Integr.Art.& Sci., Professor, 総合科学部, 教授 (00116633)

Co-Investigator(Kenkyū-buntansha) SEKI Tarou  Hiroshima U.Fac.Sci., Professor, 理学部, 教授 (90033860)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1995: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1994: ¥3,800,000 (Direct Cost: ¥3,800,000)
KeywordsAir pollution / Forest decline / Leaf longevity / Acid rain and fog / Pine blight / NO_2 / Seto Inland Sea / Slope
Research Abstract

The spatial concentration distribution was investigated on the southern and northern slopes of Mt. Gokurakuji, Hiroshima Prefecture.
The concentration at vertical intervals of 50m or 100m was measured using short-and long-term exposure methods. A high concentration of NO_2 was detected at an altitude of 100-200m on the southern slope where the atmosphere was comparatively polluted, and the concentration decreased with increasing altitude. However, the concentration was constantly low on the northern slope, where air pollution had not reached an advanced stage. It was estimated that the NO_2 concentration was closely related to land and seabreezes. The vital degree of severaltree species was investigated. The mortality of Pinus densiflora, the leaf shooting rates and mortality of Prunus spp.and the leaf shedding rates of Eurya japonica were used at the same sites where NO_2 measurement was conducted. Consequently, it was found that the mortality and leaf shedding rates were higher in areas of low altitude on the southern slope, and that damage was increased to pine forests. The leaf shooting rates of Prunus spp.was not closely correlated with NO_2 concentration, although the mortality showed a clear differ ence between on the southern and northern slopes.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] 中根周歩・苗村晶彦: "大気汚染とマツ・広葉樹の被害-NO_2を指標として-" 水. 36 (8). 30-33 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 苗村晶彦・中根周歩: "大気中NO_2濃度の短期暴露式簡易測定法の検討" 環境科学会誌. 9. 65-71 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Naemura, Tsuchiya, Nakane, Fukooka and Takahashi: "An altitude of climate inversion layer and atmospheric NO_2 Consentration on a Slope of forest decline area in the Seto Inland Seacoast" Japanese Journal of Biometeorology. 33 (予-定). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 苗村昌彦・中根周歩・福岡義隆: "広島県極楽寺山における大気NO_2濃度とマツ・広葉樹の樹木衰退の関係" 環境科学会誌. 9 (予-定). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Nakane K.& Naemura A.: "Relationship between the damage of pine and broad-leaved trees and NO_2 concentration as a indicator of air pollution." Mizu. 36(8). 30-33 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Naemura A.& Nakane K.: "Examination in precision and accuracy of a simolified short-term exposure method for the measurement of atmospheric NO_2 concentration." Enviromental Science. 9. 65-71 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Naemura A., Tsuchiya A., Nakane K., Fukuoka Y.& Takahashi H.: "An altitude of climate inversion layr and atmospheric NO_2 concentration on a slope of forest decline area in the Seto Inland Seacoast." Japanese Journal of Biometeorology. 33 (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Naemura A., Nakane K.& Fukuoka Y.: "Relationship between spatial behavior of NO_2 concentration and vital degree of pine and broad-leaved tree species on Mt.Gokurakuji, Hiroshima Prefecture, Japan." Environmental Science. 9 (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 中根周歩・苗村晶彦: "大気汚染とマツ・広葉樹の被害-NO_2を指標として-" 水. 36(8). 30-33 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 苗村晶彦・中根周歩: "大気中NO_2濃度の短期暴露式簡易測定法の検討" 環境科学会誌. 9. 65-71 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Naemura A. et al.: "An alt: tude of climatio inversion layer and atmosphere NO_x concentration on slope of forest de cline area in the sato I. land Sea coast" Japanese Journal of Bio meteorology. 33(予定). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 苗村晶彦・中根周歩・福岡義隆: "広島県極楽寺山における大気NO_2濃度とマツ・広葉樹の樹木衰退との関係" 環境科学会誌. 9(予定). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 中根周歩・苗村晶彦: "大気汚染とマツ・広葉樹の被害-NO_2を指標として-" 水. 36(8). 30-33 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 苗村晶彦・中根周歩: "大気中NO_2濃度の短期暴露式簡易測定法の検討" 環境科学会誌. 8(印刷中). (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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