[A-HW32] Material transportation and cycling in aquatic ecosystems; from headwaters to coastal areas

convener:Syuhei Ban(The University of Shiga Prefecture), Adina Paytan(University of California Santa Cruz), Takahiro Hosono(Faculty of Advanced Science and Technology, Kumamoto University), Morihiro Maeda(Okayama University)

This session aims to synthetize watershed sciences in order to understand dynamic processes in transportation and cycling of materials and nutrients in aquatic environments from headwaters to coastal areas. The session will integrate various inter-disciplinary researches including limnology, ground water hydrology, coastal oceanography, meteorology, pedology, sedimentology, forestry, agriculture, fishery, ecology, social science and so on. This session calls for ideas on new methods for understanding the watershed sciences, such as tracer and molecular techniques, hydrological modeling, paleontological approaches, and chemical analyses, in order to elucidate physical, chemical and biological mechanisms for shedding light on natural phenomena and their spatio-temporal variations in complex and dynamic aquatic systems under human and climate impacts. Both laboratory and field studies, social-scientific evaluation of ecosystem services and social-ecological systems will be also welcomed. Through this session, we would like to facilitate interdisciplinary collaboration among participants to create new knowledge on watershed sciences.

+Add all to schedule

Introduction (9:00 AM - 9:05 AM)

[AHW32-01] Geologic controls on source water drive baseflow generation and geochemistry across watershed scales

★Invited Papers

*Adina Paytan¹, Christina Richardson¹, Margaret Zimmer¹, Joseph Fackrell¹ (1.University of California Santa Cruz)

[AHW32-02] The Processes Controlling Stream Water Chemistry at the Terrestrial-Aquatic Interface, Great Lakes Region, USA

*Fengjing Liu¹, Veronica Porter¹ (1.Michigan Technological University)

[AHW32-03] Agriculture and brackish fishpond impact on the vulnerability of coastal groundwater in Southeast Asia

*Anna Fadliah Rusydi^1,4, Shin-ichi Onodera¹, Mitsuyo Saito², Seiichiro Ioka³, Rizka Maria⁴ (1.Graduate School of Integrated Arts and Sciences, Hiroshima University, Japan, 2.Graduate School of Environmental and Life Sciences, Okayama University, Japan, 3.Institute of Regional Innovation, Hirosaki University, Japan, 4.Research Center for Geotechnology, Indonesian Institute of Sciences, Indonesia)

[AHW32-04] Permafrost distribution controls dFe concentrations in rivers, Russian Far East

*Yuto Tashiro¹, Muneoki Yoh¹, Takayuki Shiraiwa², Takeo Onishi³ (1.Tokyo University of Agriculture and Technology, 2.Hokkaido University , 3.Gifu University)

[AHW32-05] Identification of autotrophic denitrification anomaly in the fast flowing karst aquifer using δ¹⁵N, δ³⁴S and δ¹³C tracers in the Ryukyu limestone aquifers, southern Okinawa, Japan

*Oktanius Richard Hermawan¹, Takahiro Hosono², Jun Yasumoto³, Masashi Nozaki³ (1.Earth and Environmental Science, Graduate School of Science and Technology, Kumamoto University, 2.Faculty of Advanced Science and Technology, Kumamoto University, 3.Department of Regional Agriculture Engineering, University of the Ryukyu)

Discussion (10:25 AM - 10:30 AM)