富士山南麓の地下水水質,流動と窒素汚染

書誌事項

タイトル別名
  • Groundwater Quality, Flow, and Nitrogen Pollution at the Southern Foot of Mt. Fuji
  • フジサン ナンロク ノ チカスイ スイシツ,リュウドウ ト チッソ オセン

この論文をさがす

抄録

 Water samples (number of samples = 52) were collected from the vicinity of the southern foot of Mt. Fuji, central Japan, and were analyzed for major elements (Si, Al, Fe, Mg, Ca, Na, K, Cl-, HCO3-, NO3-, etc.) and other chemical properties (pH, EC, ORP, etc.). The results show that major element concentrations increase with decreasing elevation, particularly at a low-elevation site.<br> In the Yoshihara area, located at the southwestern foot, anion and cation concentrations vary widely and increase from west to east. In this area, water samples with a high total concentration tend to contain a high NO3- concentration, suggesting NO3- pollution of the groundwater. By contrast, in the southeastern area, NO3- pollution was not recognized. Based on nitrogen isotopic and ionic concentration data, the high NO3- concentration in the southwestern area is considered to be due to inorganic fertilizer (e.g. (NH4)2SO4) used at tea farms. Analytical results show two groundwater flows in a high-elevation area along the Urui River and in the direction from a high-elevation site at the southwestern foot toward Susono City, and that they mix together at a low-elevation site. In the southeastern foot area, two groundwater flows derive from a high-elevation site on Mt. Fuji along the Gotenba mudflow and the Mishima lava flow. The latter groundwater mixes with groundwater derived from Ashitaka and the Hakone mountains.

収録刊行物

  • 地学雑誌

    地学雑誌 123 (3), 323-342, 2014

    公益社団法人 東京地学協会

被引用文献 (4)*注記

もっと見る

参考文献 (4)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ