Hirohide Kiri

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We estimated the extent of suspended solids (SS) and particulate organic matter (POM) discharged from a freshwater reservoir, called the Isahaya Reservoir, into a sea area by tracking the diatom frustules produced in the reservoir. The estimation method is based on the fact that Skeletonema subsalsum and S. costatum, are the predominant diatoms in the(More)
A year-long study on the water quality and hydrology was carried out to investigate the characteristics of the pollutant concentrations and pollutant removal in a constructed irrigation pond. The pond is part of a circular irrigation system for paddy fields within Lake Kasumigaura watershed, Japan. The average concentrations of the total nitrogen (TN),(More)
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