[A-HW18] Material transportation and cycling at the land-sea interface: from headwaters to the ocean

Fri. May 26, 2023 1:45 PM - 3:00 PM 105 (International Conference Hall, Makuhari Messe)

convener:Takahiro Hosono(Faculty of Advanced Science and Technology, Kumamoto University), Syuhei Ban(The University of Shiga Prefecture), Mitsuyo Saito(Graduate School of Advanced Science and Engineering, Hiroshima University), Adina Paytan(University of California Santa Cruz), Chairperson:Syuhei Ban(The University of Shiga Prefecture)

This session aims to synthetize watershed-based sciences to better understand dynamic processes in transportation and cycling of materials and nutrients at the land-sea interface from headwaters to the ocean via rivers, groundwater, and coastal lakes. The session will integrate research from various disciplines including limnology, groundwater hydrology, geochemistry, coastal oceanography, meteorology, soil science, sedimentology, forestry, agriculture, fishery, ecology, social science, and other related fields. This session calls for sharing new methods such as tracers and molecular techniques, machine learning, watershed modeling, microbial and paleontological approaches, and chemical analyses that help to elucidate physical, chemical, and biological mechanisms in terrestrial-aquatic ecosystems. Moreover, it seeks to shed light on the complex and dynamic terrestrial-aquatic systems and their spatio-temporal variations in a changing climate and environment. Laboratory-based and field-based studies, social and socioeconomic evaluation of ecosystem services and social-ecological systems are also welcomed. Through this session, we would like to facilitate interdisciplinary collaboration among participants to create a new watershed-based science that considers the overall interrelationship between headwaters and the ocean.

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1:45 PM - 2:00 PM

[AHW18-11] Wetlands Restoration – A Nature-Based Solution to Combat Climate Change – Challenges and Opportunities

★Invited Papers

*Adina Paytan¹, Ariane Arias Ortiz², Dennis Baldocchi³, Lisamarie Windham-Myers⁴, Brian Bergamaschi⁴, Patty Oikawa⁵, Camilo Rey-Sanchez⁶ (1.University of California Santa Cruz, 2.Universitat Autònoma de Barcelona, 3.University of California Berkeley, 4.United States Geological Survey, 5.California State University, East Bay, 6.North Carolina State University)

2:00 PM - 2:15 PM

[AHW18-12] Spatial evaluation of submarine groundwater discharge (SGD) by mass balances approach on an island scale

*Mitsuyo Saito¹, Nhat Hong Nguyen², Shin-ichi Onodera¹, Fujio Hyodo², Takuya Akinaga² (1.Graduate School of Advanced Science and Engineering, Hiroshima University, 2.Graduate School of Environmental and Life Science, Okayama University)

2:15 PM - 2:30 PM

[AHW18-13] Assessment Nitrogen Budget in Detailed Spatial Pattern by Modeling Approach with Constructed Accurate Agricultural Behavior

*Kunyang Wang¹, Shin-ichi Onodera¹, Mitsuyo Saito¹, Yuta Shimizu² (1.Graduate School of Advanced Science and Engineering, Hiroshima University, 2.Western Region Agricultural Research Center, National Agriculture and Food Research Organization)

2:30 PM - 2:45 PM

[AHW18-14] The fate of benthic biodiversity in a deep ancient Lake Biwa under changing climate

*Noboru Okuda^1,7, Hirona Okamoto¹, Jinxin Zhou², Daisuke Kitazawa², Masayuki Itoh³, Akifumi Ohtaka⁴, Megumu Fujibayashi⁵, Yuki Kobayashi⁶ (1.Kobe University, 2.Tokyo University, 3.University of Hyogo, 4.Hirosaki University, 5.Kyushu University, 6.Yamaguchi University, 7.Research Institute for Humanity & Nature)

2:45 PM - 3:00 PM

[AHW18-15] Boron isotope as a tracer for groundwater contamination in Quaternary limestone aquifer in the southern part of Okinawa Island, Japan

*KE-HAN SONG¹, Ryuichi Shinjo^1,2, Yuto Ito¹, Yumi Moromizato³, Jun Yasumoto⁴ (1.Graduate School of Engineering and Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan, 2.Research Institute for Humanity and Nature, Motoyama 457-4, Kamigamo, Kita-ku, Kyoto 603-8047, Japan, 3.Department of Physics and Earth Sciences, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan, 4.Department of Regional Agricultural Engineering, Faculty of Agriculture, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan)

Session information