Japan Geoscience Union Meeting 2025

Session information

[E] Oral

A (Atmospheric and Hydrospheric Sciences ) » A-HW Hydrology & Water Environment

[A-HW27] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

Thu. May 29, 2025 9:00 AM - 10:30 AM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

convener:Noboru Okuda(Kobe University), Takuya Ishida(Hiroshima University), Masahiro Kobayashi(Kansai Research Center, Forestry and Forest Products Research Institute), Adina Paytan(University of California Santa Cruz), Chairperson:Noboru Okuda(Kobe University)


This session aims to synthetize watershed sciences in order to understand dynamical processes of interactions between organisms, nutrients and other materials in watersheds from mountain tops to receiving water. The session will be integrating a variety of research disciplines including limnology, pedology, ground water hydrology, sedimentology, coastal oceanography, meteorology, forestry, agriculture, fishery and more. The watershed sciences also challenge us to solve environmental issues emerged in the watersheds through our profound understanding of relations between humanity and nature in social-ecological systems. For instance, on one hand, human land uses alter dynamics of sediments, macro- and micro-nutrients and pollutants in soils and waters on catchment scales, while changing climates may alter the frequency and intensity of natural disaster, sometimes having catastrophic effects on the watershed systems. On the other hand, globalization causes transboundary pollution and biological invasion between watersheds. Such anthropogenic disturbances, in turn, reduce biodiversity and thus deteriorate its ecosystem services in watersheds and coasts, posing a risk to sustainable human development. The dogma of watershed sciences may lead us to the solution for sustainable future of social-ecological watershed systems as the basis of our existence. This session also calls for ideas on new methods for the watershed sciences, such as tracer and molecular technique, modeling and paleontological approaches, laboratory and field experiments, and so on, in order to elucidate biological, chemical and physical mechanisms for shedding light on natural phenomena and their changes over time in complex and dynamic watershed systems. Through this session, we would like to facilitate interdisciplinary collaboration among participants to create new knowledge on watershed sciences.

9:15 AM - 9:30 AM

*Milette Mendoza Pascual1, Justine R De Leon2,3, Sarah Jewel De Leon4, Ryamico Reyes4, Kamille N Poblete4, Tzu-Hsuan Tu5,6, Wan Ting Chen5, Mark Louie D Lopez7, Yuki Kobayashi8, Fuh-Kwo Shiah9, Pei-Ling Wang10,14, Li-Hung Lin5,10, Masayuki Itoh11, Noboru Okuda8,12,13, Rey Donne S Papa2,4,3 (1.Ateneo Research Institute for Science and Engineering; Department of Environmental Science, School of Science and Engineering, Ateneo de Manila University, Quezon City, Philippines, 2.Research Center for the Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines,, 3.Department of Biological Sciences, College of Science, University of Santo Tomas, Manila, Philippines, 4.The Graduate School, University of Santo Tomas, Manila, Philippines, 5.Department of Geosciences, National Taiwan University, Taipei, Taiwan, 6.Department of Oceanography, National Sun Yat-sen University, Kaohsiung, Taiwan, 7.Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada, 8.Center for Ecological Research, Kyoto University, Shiga, Japan, 9.Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan, 10.Research Center for Future Earth, National Taiwan University, Taipei, Taiwan, 11.Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan, 12.Research Center for Inland Seas, Kobe University, Kobe, Japan, 13.Research Institute for Humanity and Nature, Kamigamo Motoyama, Kita Ward, Kyoto, Japan, 14.Institute of Oceanography, National Taiwan, University, Taipei, Taiwan)

9:30 AM - 9:45 AM

*Vinicius Rogel Paulino de Oliveira Oliveira1, Reginaldo Antonio Bertolo1, Priscila Ikematsu2, Shin-ichi Onodera3, Mitsuyo Saito3, Ricardo Hirata1 (1.University of Sao Paulo, Brazil, 2.Technological Research Institute of the State of São Paulo, Brazil, 3.Graduate School of Advanced Science and Engineering, Hiroshima University, Japan)

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