A fundamental study for estimation of a thriving area of aquatic macrophytes in agricultural ponds using satellite data

DOI

Bibliographic Information

Other Title
  • 衛星データを用いたため池における水草繁茂域の推定に向けた基礎的検討
Published
2023
DOI
  • 10.11520/jshwr.36.0_300
Publisher
THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

Description

<p>Recently, blue carbon, the amount of carbon captured by marine ecosystems, has been attracting attention since it is almost even equal to green carbon. In addition, it is said that ecosystems in freshwater areas such as aquatic macrophytes in agricultural ponds also have the possibility to capture and store carbon. However, the exuberance area and condition of macrophytes in freshwater areas has not been revealed in previous studies. Thus, this study aims to develop an estimation method for the exuberance area of macrophytes using satellite data (Sentinel-2). </p><p> We extracted water areas using near-infrared reflectance data, and ponds with NDVI values above a certain threshold were considered to have macrophytes. Then, the results were compared with field observations. </p><p> Of the 30 ponds extracted as water areas, 22 were correctly identified as having macrophytes, suggesting that satellite data can be used to estimate the presence of macrophytes in general.</p>

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Keywords

Details 詳細情報について

  • CRID
    1390017193115834752
  • DOI
    10.11520/jshwr.36.0_300
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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