都城盆地の水文地質環境と硝酸態窒素による湧水の水質変化

概要

論文の詳細を見る
A change with passage of time of notoriety nitrogen and dissolved matter by geological features was researched as an analysis of the purity of water of sprig water and a shallow well in sirasu tablelands in Miyakonojo basin. The result obtained above was compared data-base for Miyakonojo basin in 1971 using the hexadiagram and the heydiagram. The results of the investigation was obtained that the pollution of the underground water of basin caused by notoriety nitrogen is getting worst, but spring water is more inactive than the water of the shallow well of the ground, and thedensity of the spring water is 3.5 mg/l as compare with 10.0 mg/l of the shallow well's water. And so, it was obtained characteristic of the hexadiagram that the quality of the spring water which was running in stratum of basin.