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2003 Fiscal Year Final Research Report Summary

Evaluation of effects of environmental degradation on natural mass cycles

Research Project

Project/Area Number 13308030
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 環境影響評価(含放射線生物学)
Research InstitutionHiroshima University

Principal Investigator

FUKUOKA Masato  Hiroshima University, Faculty of Integrated Arts and Sciences, Professor, 総合科学部, 教授 (70117232)

Co-Investigator(Kenkyū-buntansha) SATO Takaharu  Hiroshima University, Faculty of Integrated Arts and Sciences, Associate Professor, 総合科学部, 助教授 (90196246)
KITAGAWA Ryuji  Hiroshima University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (70112167)
ONODERA Shin-ichi  Hiroshima University, Faculty of Integrated Arts and Sciences, Associate Professor, 総合科学部, 助教授 (50304366)
OHO Yukimasa  Hiroshima University, Faculty of Integrated Arts and Sciences, Professor, 総合科学部, 教授 (80152560)
KAIHOTSU Ichiro  Hiroshima University, Faculty of Integrated Arts and Sciences, Professor, 総合科学部, 教授 (60160959)
Project Period (FY) 2001 – 2003
Keywordsmass balance / flux / environmental degradation / rock / water / biology / acidification / weathering
Research Abstract

For sustainable use of Seto Inland Sea and coastal catchments, we confirmed natural mass cycle flux and soil degradation rate and evaluate the variation of mass cycle with environmental change, such as acid rain, global warming, forest fire, artificial impact.
Our conclusions are summarize as follows,
1. We quantified various flux in mass cycle of catchments evapotranspiration rate, infiltration rate, river discharge, groundwater flow, vegetation growing rate, weathering rate, erosion rate. Consequently, soil degradation trend was confirmed in forest fire catchments for initial two years. Erosion rate in forest fire catchments became more than 30 times of that in forest.
2. We conducted the scale up the weathering process and rate in micro view and short term scales. The weathering rate in micro scale was higher than that in catchment scale. This was solved by heterogeneity of weathering process such as micro sheeting joints and fissure, thermal water effect, groundwater slow in long term. Furthermore, both of biochemical process and rainfall as the unstable condition had significant role on that.
3. We evaluated the transport of anthropogenic input mass ; trace metal of atmosphere fall and nitrate of agricultural input and living waste. Trace metal was released from soil with acidification and discharged in dissolved form in the source area. On the other hand, it was transported with suspension in down stream due to adsorption. Nitrate discharged through the river to sea. But the content decreased by some purification process such as denitrification in groundwater and river bed.

  • Research Products

    (50 results)

All Other

All Publications (50 results)

  • [Publications] 小野寺 真一: "瀬戸内土壌劣化流域における降水から湧水への金属成分の変化"陸水学雑誌. 63. 21-30 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Naruoka, Tomohiro: "Evaluation of cation exchange processes, in acid soil slope for solute transport modeling in unsaturated zone"Acta Univ.Carolinae, Geologica. 46. 439-441 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小野寺 真一: "広島県瀬戸内海沿岸域の降雨特性-降雨時間帯、季節性、降雨強度-"広島大学総合科学部紀要IV. 28. 61-68 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 斎藤 光代: "瀬戸内海沿岸小河川における硝酸性窒素負荷量-果樹洗面積、溜池、扇状地の効果"広島大学総合科学部紀要IV. 28. 71-84 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 竹井 務: "表流水の水質の空間分布特性とその評価に関する研究-西条盆地の250mメッシュの地理情報による評価-"広島大学総合科学部紀要IV. 28. 69-75 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hongu, H: "High Al contents in quartz and hydrothermal alteration of the "Roseki" deposits in the Mitsuishi district, Southwest Japan"Jour.Mineralogical and Petrological Sciences. 97. 168-176 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 地下まゆみ: "宇久ロウ石鉱床に産するpyrophylliteの結晶表面マイクロトポグラフ"粘土科学. 42. 15-20 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 日和田修司: "島根県東伯郡東郷町-三朝町の町境における白亜紀花崗岩のスメクタイト化による法面変形について"粘土科学. 41. 139-143 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Mayumi Jige: "Surface microtopograhies of pyrophyllite from different modes of occurrence"Proc.Int.C.C.. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宮原正明: "御荷鉢緑色岩類中の地すべり地に生成する粘土鉱物-怒田・八畝,蔭地すべり地-"粘土科学. 42. 81-88 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 北川隆司: "ベトナムにおけるPyrophyllite鉱床・カオリン鉱床とベトナム事情"人工粘土. 55. 2-19 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宇野洋平: "西の谷地すべり地における粘土鉱物と地すべり発生との関係"日本地すべり学会講演論文集. 1-4 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宮原正明: "中央構造線沿いの熱水変質作用により生成したスメクタイトの鉱物学的特長"日本地すべり学会講演論文集. 5-8 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 北川隆司: "ネパールの地すべりと変貌したネパール"人工粘土. 55. 2-19 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 鹿江宏明: "防災リテラシーの確立をめざした小・中・高等学校一貫教育の創造(1)"広島大学学部:付属学校共同研究紀要. 30. 135-140 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 地下まゆみ: "花崗岩のスメクタイト化による法面変形の機構と対策,その一"応用地質学会講演論文集. 207-210 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 日和田修司: "花崗岩のスメクタイト化による法面変形の機構と対策,その2"応用地質学会講演論文集. 211-214 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宮原正明: "御荷鉾緑色岩の変質と膨潤性緑泥石"応用地質学会講演論文集. 37-40 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yamanaka, T.: "Footprint analysis using event-based isotope data for identifying source area of precipitated"Journal of Geophysical Research - Atmosphere. 107. (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yamanaka, T.: "Time-space structure of surface soil moisture variation over a Mongolian grassland"EOS Trans.AGU. 83・22. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nishimune, Nら: "Comparative study of bedload sediment yield processes in small mountainous catchments covered by secondary and disturbed forests, western Japan"Hydrobiologia. 494. 265-270 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 重枝豊実ら: "広島県生口島におけるSiO_2フラックスの空間分布特性"広島大学総合科学部紀要IV理系編. 29. 95-103 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 峯 孝樹ら: "黒瀬川流域における窒素流出の空間分布特性とそれに及ぼす地形の影響"広島大学総合科学部紀要IV理系編. 29. 115-122 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Udachin, V.: "The formation and development of the deposits from ophiolitic zones"Russian Accademy of Science Pub. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 日本林業技術協会: "森に学ぶ101のヒント"東京書籍. 225 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Onodera, S. et al.: "Metal content variation from rainfall to river in degraded catchments of Setouchi"Limnology. 63. 21-30 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Naruoka, T. et al.: "Evaluation of cation exchange processes in acid soil slope for solute transport modeling in unsaturated zone"Acta Univ.Carolinae, Geologica. 46. 439-441 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Onodera, S. et al.: "Rainfall properties in coastal area of Seto Inland Sea."Bulletin of Fac.Integrated Sciences, Hiroshima University. 28. 61-68 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Saito, M. et al.: "Nitrate load in small river in coastal area of Seto Inland Sea."Bulletin of Fac.Integrated Sciences, Hiroshima University. 28. 76-84 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takei, T. et al.: "Evaluation of spatial variation in surface water quality in Higashihiroshima."Bulletin of Fac.Integrated Sciences, Hiroshima University. 28. 69-75 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hongu, H. et al.: "High Al contents in quartz and hydrothermal alteration of the "Roseki" deposits in the Mitsuishi district, Southwest Japan"Jour.Mineralogical and Petrological Sciences. 97. 168-176 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nishimune, N: "Comparative study of bedload sediment yield processes in small mountainous catchments covered by secondary and disturbed forests, western Japan"Hydrobiologia. 494. 265-270 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jige, M. et al.: "Microtopography of crystalline surface of pyrophyllite yielded in mineral deposit."Jap.Clay Science. 42. 15-20 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hiwada, S. et al.: "Slope deformation with smectitization of Cretaceous granite in eastern Shimane."Jap.Clay Science. 41. 139-143 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jige, M. et al.: "Surface microtopograhies of pyrophyllite from different modes of occurrence"Proceedings of International C.C.. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Miyahara, M. et al.: "Clay mineral on landslide underlain by green rocks."Jap.Clay Science. 42. 81-88 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitagawa, R.: "Mineral deposit of Pyrophyllite and kaolinite in Vietnam"Jap.Artificial Clay. 55. 2-19 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Uno, Y.et al.: "Relationship between clay mineral and landslide occurrence in Nishinotani landslide"Proceedings of Jap Ass.Landslide. 1-4 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Miyahara, M. et al.: "Mineralogical properties of smectite yielded by hydrothermal alternation along Median tectonic line."Proceedings of Jap.Ass.Landslide. 5-8 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitagawa, R.: "Landslide in Nepal and changing Nepal"Jap.Artificial Clay. 55. 2-19 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shikae, H. et al.: "Creation of jointing education from primary to high school for literacy of accident prevention"Bulletin of Fac.Education, Hiroshima University.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jige, M. et al.: "Slope deformation mechanism with smectitization of granite 1."Proceedings of Jap.Ass.Applied Geology. 207-210 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hiwada, S. et al.: "Slope deformation mechanism with smectitization of granite 2."Proceedings of Jap.Ass.Applied Geology. 211-214 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Miyahara, M. et al.: "Alternation of green rock and swelling chlorite."Proceedings of Jap.Ass.Applied Geology. 37-40 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yamanaka, T.: "Footprint analysis using event-based isotope data for identifying source area of precipitated"Journal of Geophysical Research -Atmosphere. 107. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yamanaka, T.: "Time-space structure of surface soil moisture variation over a Mongolian grassland"EOS Trans.AGU. 83. 22 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shigeeda, T. et al.: "Spatial variation in SiO_2 flux in Ikuchi Island"Bulletin of Fac.Integrated Sciences, Hiroshima University. 29. 95-103 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Mine, T. et al.: "Effect of topography on nitrogen transport in Kurose river catchment"Bulletin of Fac.Integrated Sciences, Hiroshima University. 29. 115-122 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Udachin, V. et al.: "The formation and development of the deposits from ophiolitic zones"Russian Academy of Science Pub.. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Jap.Ass.Forestry: "101 suggestions of forestry science"Tokyo Books. 225 (2002)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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