[A-HW36] Material transport, biodiversity and environmental changes in watersheds from headwaters to coasts

[AHW36-P16] Mechanisms controlling river water quality revealed by using multiple watershed parameters: A case study in Hokkaido, Japan

*Ishigami Kyoichi¹, Takahiro Hosono¹ (1. Kumamoto University)

Keywords:river, water quality formation, watershed characteristics, Hokkaido, GIS, multivariate analysis