石田川流域における水文化学的観測 (その2)

Abstract

For the investigation of hydrochemical features in the Ishida river basin, the authors de-termined the chemical composition of the main and tributary river waters collected weekly fromJuly 1982 to June 1984. They showed the difference in chemical compositions between bothwater samples, and also studied the variations of water quality and discharge along the reachof flow on an ordinary hydrological stage in summer and winter. Few studies of dissolved mat-ters response showed that the simple relationship between the flux of dissolved matters (F: ton/year) and discharge (Q: m3/year), which takes the formF=aQnwhere a and n are constants, and determined from observation data.