[A-HW32] [EE] Biodiversity, nutrients and other materials in ecosystems from headwaters to coasts

2017年5月21日(日) 13:45 〜 15:15 201B (国際会議場 2F)

コンビーナ:奥田昇(総合地球環境学研究所)、小野寺真一(広島大学大学院総合科学研究科)、池谷透(総合地球環境学研究所)、Adina Paytan(University of California Santa Cruz)、座長:奥田昇(総合地球環境学研究所)

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.

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13:45 〜 14:00

[AHW32-19] Spatial Variation in Lacustrine Groundwater Discharge (LGD) as a Nutrient Source in Lake Biwa, Japan

*小野寺真一¹、齋藤光代²、伴修平³、金广哲¹、友澤裕介¹、奥田昇⁴ (1.広島大学大学院総合科学研究科、2.岡山大学、3.滋賀県立大学、4.総合地球環境学研究所)

14:00 〜 14:15

[AHW32-20] Spatial evaluation of submarine groundwater discharge (SGD) on an island scale in a temperate coastal sea

*齋藤光代¹、朱爱萍^2,3、小野寺真一²、金广哲²、清水裕太⁴、大久保賢治¹ (1.岡山大学大学院環境生命科学研究科、2.広島大学大学院総合科学研究科、3.中山大学地理科学·規画学院、4.国立研究開発法人農業・食品産業技術総合研究機構西日本農業研究センター)

14:15 〜 14:30

[AHW32-21] Nutrient imbalance and diversity of plankton community in lagoon lakes around Lake Biwa

*伴修平¹、土居俊平¹、立花道草¹、刘鑫¹ (1.公立大学法人　滋賀県立大学)

14:30 〜 14:45

[AHW32-22] Biodiversity Assessment of Littoral Macrozoobenthos in Laguna de Bay, Philippines

*Ellis Mika Cruz Trino¹、Irisse Bianca Baldovino De Jesus^1,2、Elfritzson Martin Peralta²、Hazel Guerrero²、Adelina Santos-Borja⁴、Francis Magbanua⁵、Jonathan Carlo Briones^1,2,3、Rey Donne Papa^1,2,3、Okuda Noboru⁶ (1.The Graduate School, University of Santo Tomas, Manila, Philippines、2.Research Center for Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines、3.College of Science, University of Santo Tomas, Manila, Philippines、4.Laguna Lake Development Authority, East Ave, Diliman, Quezon City, Philippines、5.Institute of Biology, University of the Philippines Diliman, Quezon City 1101, Philippines、6.Research Institute for Humanity and Nature, Kyoto, Japan)

14:45 〜 15:00

[AHW32-23] 亜寒帯深湖の熱環境と気候変動への応答：不凍化がもたらす生態系への影響評価

*知北和久¹、大八木英夫²、山根志織⁶、相山忠男³、板谷利久⁴、岡田操⁵ (1.北海道大学大学院理学研究院地球惑星科学部門、2.日本大学文理学部、3.（株）福田水文センター、4.（株）シン技術コンサルタント、5.（株）水工リサーチ、6.北海道大学理学部地球惑星科学科)

Discussion (15:00 〜 15:15)

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