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2000 Fiscal Year Final Research Report Summary

The effects of river regulations and land-use development on the regeneration of riparian tree species and ecological functions of riparian zone.

Research Project

Project/Area Number 10460059
Research Category

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

Allocation TypeSingle-year Grants
Section一般
Research Field 林学
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

NAKAMURA Futoshi  HOKKAIDO UNIV., FAC.OF AGR., PROF., 大学院・農学研究科, 教授 (90172436)

Co-Investigator(Kenkyū-buntansha) KIKUCHI Shun-ichi  HOKKAIDO UNIV., FAC.OF AGR., INSTRUCTOR, 大学院・農学研究科, 助手 (10250490)
YAJIMA Takashi  HOKKAIDO UNIV., FAC.OF AGR., PROF., 大学院・農学研究科, 教授 (90142702)
Project Period (FY) 1998 – 2000
KeywordsRiparian forest / Riverine forest / Dam / Chosenia arbutifolia / Regeneration habitat / Life history
Research Abstract

There is a close relationship between physiotopes and tree species through habitat conditions. Chosenia arbutifolia, Toisus urubaniana and Poplus maximowiczii dominate upper and lower floodplains and the depositional bar, because these physiotopes, characterized by gravel soil and less soil moisture than other geomorphic surfaces, have establishment environments favored by these three species of Salicaceae trees. Dams for water regulation substantially alter the regeneration habitats of riparian species, thereby affecting their recruitment, composition and growth rate. This paper examines the effects of dams on the dynamics of riparian forests. First, the distribution of dominant riparian tree species was investigated in the Rekifune River, where no dams have been built, and their regeneration habitats were classified into five geomorphic surfaces based upon flooding frequency. C.arbutifolia and T.urubaniana appear on the most flood prone areas such as gravel bars and lower floodplains. P.maximowiczii also prefers coarse sediment, but establishes on upper floodplains. The late successional species, such as Ulmus davidiana var.japonica and Fraxinus mandshurica var.japonica, occur on stable surfaces referred to as terraces where sand and fine gravel make up the soil. Salix spp. dominates secondary channels. Second, the effects of dams on the regeneration process were examined in the Satsunai River where a flood control dam was completed in 1997. Spring floods in snowy regions mobilize riverbed sediment and create the moist, alluvial substrate ideal for seed germination. These habitats are essential for the recruitment of salicaceous species. Dams, in general, attenuate spring flooding and/or stabilize summer flows. This flow regime limits the development of gravel bars and reduces flood frequency. A decrease in flood frequency and magnitude may reduce the densities of pioneer species and shift species distribution from pioneer to late successional species.

  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] 阿部俊夫: "倒流木の除去が河川地形および魚類生息場所に及ぼす影響"応用生態工学. 2(2). 179-190 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岸千春: "北海道南西部の小河川幌内川における落葉の収支および滞留様式"日本生態学会誌. 49. 11-20 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nagasaka,A: "The influence of land-use changes on hydrology and riparian environment in a northern Japanese landscape"Landscape Ecology. 14. 543-556 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 中村太士: "ダムの構造物が水辺林の更新動態に与える影響"応用生態工学. 2(2). 125-139 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 中村太士: "水辺環境の保全と景観生態学"科学. 69(12). 1029-1035 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 加村邦茂: "ハナカジカの生息環境についての一考察-底質に着目して-"日本林学会北海道支部論文集. 48. 133-135 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 中村太士: "生態系間の相互作用からみたランドスケープの保全"日本造園学会誌. 62(2). 131-134 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 菅原修: "山地河川氾濫原地下水動態の数値解析"日本林学会北海道支部論文集. 48. 130-132 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山田浩之: "真駒内川における微細砂堆積と付着藻類の現存量に関する研究"日本林学会北海道支部論文集. 48. 136-138 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nakamura,F.: "Disturabance regiones and riparian systems-a disturbance-cascade perspective"Hydrological Processes. 14. 2849-2860 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kameyama,S.: "Development of WTI and turbidity estimation model using SMA-Application to Kushiro Mire eastern Hokkaido Japan."Remote Sensing of Environment. (in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nakamura,F.: "Changes in riparian forests in the Kushiro more, Japan, associated with stream channelization."Regulated Rivers. (in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nakamura,F.: "The Downstream Effects of Dams on the Regeneration of Riparian Trow Species in Northern Japan"AGU monograph on Geomorphic Process and Riverine Habitat.. (in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山田浩之: "微細砂堆積による河床透水性の低下がサクラマス卵の生残率に及ぼす影響"日本林学会北海道支部論文集. 49. 112-114 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Abe, T.and Nakamura, F.: "Effects of experimental removal of woody debris on channel morphology and fish habitats."Ecol.Civil Eng.. 2(2). 179-190 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kishi, C., Nakamura, F.and Inoue, M.: "Budgets and retention of leaf litter in Horonai Stream, southwestern Hokkaido, Japan."Jpn.J.Ecology. 49. 11-20 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nagasaka, A.and Nakamura, F.: "The influence of land-use changes on hydrology and riparian environment in a northern Japanese landscape."Landscape Ecology. 14. 543-556 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakamura, F.: "Influences of dam structure on dynamics of riparian forests."Ecol.Civil Eng.. 2(2). 125-139 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakamura, F.: "Conservation of riparian environment and landscape ecology."KAGAKU. 69(12). 1029-1035 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamura, K.and Nakamura, F.: "Habitat condition for Cottus nozawae, with special reference to streambed material."J.Jpn For.Soc., Hokkaido Branch. 48. 133-135 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakamura, F.: "Landscape dynamics maintained by the interactions among ecosystems."J.JILA. 64(2). 131-134 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sugawara, O.and Nakamura, F.: "Steady state dynamics of the hyporheic zone in 2^<nd>-order mountain stream."J.Jpn For.Soc., Hokkaido Branch. 48. 130-132 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yamada, H.and Nakamura, F.: "The study on the deposition of fine sediment and the periphyton biomass in the Makomanai River."J.Jpn For.Soc., Hokkaido Branch. 48. 136-138 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakamura, F., Swanson, F.J.and Wondzell, S.M.: "Disturabnce regimes and riparian systems-a disturbance-casacde perspective."Hydrological Process. 14. 2849-2860 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kameyama, S., Yamagata, Y., Nakamura, F.and Kaneko, M.: "Development of WTI and turbidity estimation model using SMA-Application to Kushiro Mire, eastern Hokkaido, Japan-."Remote Sensing of Environment. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakamura, F., Jitsu, M.Kameyama, S.and Mizugaki, S.: "Changes in riparian forests in the Kushiro mire, Japan, associated with stream channelization."Regulated Rivers. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nakamura, F.and Shin, N.: "The Downstream Effects of Dams on the Regeneration of Riparian Tree Species in Northern Japan."AGU monograph on "Geomorphic Process and Riverine Habitat". (in press).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yamada, H.and Nakamura, F.: "Effects of fine sediment deposition on Masu Salmon (Oncorhynchus masou) embryo associated with a decrease in permeability."J.Jpn For.Soc., Hokkaido Branch. 49. 112-114 (2001)

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

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Published: 2002-03-26  

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