Japan Geoscience Union Meeting 2022

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[J] Poster

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS15] Mountain Science

Mon. May 30, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (34) (Ch.34)

convener:Yoshihiko Kariya(Department of Environmental Geography, Senshu University), convener:Akihiko SASAKI(Department of Geography and Environmental Studies, Kokushikan University), Chiyuki Narama(Niigata University, Program of Field Research in the Environmental Sciences), convener:Asaka Konno(Tokoha University), Chairperson:Chiyuki Narama(Niigata University, Program of Field Research in the Environmental Sciences), Asaka Konno(Tokoha University), Akihiko SASAKI(Department of Geography and Environmental Studies, Kokushikan University), Yoshihiko Kariya(Department of Environmental Geography, Senshu University)

11:00 AM - 1:00 PM

[MIS15-P11] Chemical characteristics of headwater in Tanzawa Mountains, Kanagawa, Japan.

*Honoka Tsunekawa1, Takayuki KURAMOTO1 (1.Department of Human Development, School of Humanities and Culture, Tokai University)


Keywords:Tanzawa Mountains, headwater, chemical characteristics of stream water

In this study we investigated in forested headwater in Tanzawa Mountains. The purpose of this study was to clarify about chemical characteristics of headwater. Stream water were collected in conterminous catchment areas. The pH, electric conductivity, and major ions (Na+, K+, Mg2+, Ca2+, Cl−, NO3−, SO42−, HCO3−) concentration were analyzed. Electric conductivity and major ions concentration of the sample immediately after precipitation were low than others. Chemical characteristics of headwater were changed by precipitation. The water quality of streams in the study area was Ca-HCO3 type. Each stream differed clearly in electric conductivity and some ions concentration. The difference of chemical characteristics of stream water was associated with the catchment area characteristics.