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REGIONAL DIVISIONS FOR ENVIRONMENTAL FLOW BASED ON THE GLOBAL NET PRIMARY PRODUCTIVITY

  • SHINOZAKI Yui
    University of Tsukuba, Graduate School of Systems and Information Engineering
  • SHIRAKAWA Naoki
    University of Tsukuba, Faculty of Engineering, Information and Systems

Bibliographic Information

Other Title
  • 全球純一次生産力に基づく環境流量のための地域区分

Abstract

This study attempts to create regional divisions for environmental flow assessment based on net primary productivity (NPP). First, the world is categorized into six hydro-climatic regions according to seasonal flow variability and average monthly temperature. Second, a trophic level index is built in order to describe the potential richness of ecological structures of river channel. This model describes biomass flux in the river channel and rate of dependency on upper reaches. In poor productive areas such as desert or high latitudes biomass supplied from upper reaches contributes to sustain ecological richness. The hydro-climatic regions and the trophic levels highlight the regional characteristics of riverine ecosystems and indicate the priorities for setting the environmental flow objectives.

Journal

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Details

  • CRID
    1390282680328965504
  • NII Article ID
    130004557882
  • DOI
    10.2208/jscejhe.68.i_1465
  • ISSN
    2185467X
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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