Quantitative and qualitative changes for the sedimentary and flowing organic matter between pre and after post initial impoundment at the up and downstream of the Kase dam

DOI 5 References

Bibliographic Information

Other Title
  • 嘉瀬川ダム上下流における試験湛水開始前後での堆積・流下有機物の量的・質的変化

Description

 We investigated the effects of sedimentary and flowing FPOM (Fine Particulate Organic Matter) at the up and downstream sites of Kase dam in Saga Prefecture before and after initial impoundment. We present main clear evidence that the nitrogen isotope ratio in sedimentary FPOM at the St. 2 and St. 3 (2.2km and 11.7km downstream from the dam) in spring of afterfollowing impoundment were was significantly higher than those that of before impoundment. After impoundment of the Kase dam, phytoplankton was increased in the reservoir and they were supplied to downstream reaches of the dam. Our results suggest that qualitative changes of sedimentary FPOM downstream of a dam by after initial impoundment was is associated with the state condition of production growth of phytoplankton in the reservoir.

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Details 詳細情報について

  • CRID
    1390001205358702080
  • NII Article ID
    130004726640
  • DOI
    10.2208/jscejer.70.ii_175
  • ISSN
    21856648
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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