MITSUYO SAITO
Last Updated :2024/12/02
- Affiliations, Positions
- Graduate School of Advanced Science and Engineering, Associate Professor
- E-mail
- misaitohiroshima-u.ac.jp
- Self-introduction
- To clarify the interactions between the environment, geology, and ecosystems, we analyze and evaluate the transport and biogeochemical processes of nutrients (phosphorus, silicon, nitrogen, etc.) and geologically derived substances such as radon (222Rn) from land to the coastal sea, as well as their effects on coastal ecosystems such as seagrass and seaweed beds (blue carbon), based on the results of field surveys and monitoring.
Basic Information
Major Professional Backgrounds
- 2005/04, 2008/03, Japan Society for the Promotion of Science, Special Postdoctoral Researcher
- 2008/04, 2011/03, Ehime University, Researcher
- 2011/04, 2013/03, Japan Society for the Promotion of Science, Special Postdoctoral Researcher(PD)
- 2013/04/01, 2018/03/31, Okayama University, Assistant Professor (Special Appointment)
- 2018/04/01, 2019/02/28, Okayama University, Assistant Professor
- 2019/03/01, 2022/03/31, Okayama University, Associate Professor
- 2022/04/01, Hiroshima University, Graduate School of Advanced Science and Engineering, Associate Professor
Educational Backgrounds
- Hiroshima University, School of Integrated Arts and Sciences, Japan
- Hiroshima University, Graduate School of Biosphere Science, Japan
- Hiroshima University, Graduate School of Biosphere Science, Japan
Academic Degrees
- Hiroshima University
- Hiroshima University
Educational Activity
- [Bachelor Degree Program] School of Integrated Arts and Sciences : Department of Integrated Arts and Sciences : Integrated Arts and Sciences
- [Master's Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Earth and Planetary Systems Science Program
- [Master's Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Transdisciplinary Science and Engineering Program
- [Master's Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Life and Environmental Sciences
- [Doctoral Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Earth and Planetary Systems Science Program
- [Doctoral Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Transdisciplinary Science and Engineering Program
- [Doctoral Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Life and Environmental Sciences
In Charge of Primary Major Programs
- Natural Environmental Sciences
Research Fields
- Environmental science;Sustainable and environmental system development;Environmental and ecological symbiosis
Research Keywords
- Environment, geology, groundwater, coastal zone, human activities, blue carbon
Affiliated Academic Societies
- Japanese Association of Hydrological Sciences
- Japanese Association of Groundwater Hydrology
- Japan Geoscience Union
- Coastal Oceanography Research Committee
- Japanese Society of Physical Hydrology
- The Oceanographic Society of Japan
- The Japanese Society of LIMNOLOGY
Educational Activity
Course in Charge
- 2024, Liberal Arts Education Program1, 2Term, Experimental Methods and Laboratory Work in Science A
- 2024, Liberal Arts Education Program1, 3Term, Earth Science B
- 2024, Liberal Arts Education Program1, 1Term, Experimental Methods and Laboratory Work in Earth Sciences I
- 2024, Liberal Arts Education Program1, 3Term, Experimental Methods and Laboratory Work in Earth Sciences I
- 2024, Liberal Arts Education Program1, 1Term, Experimental Methods and Laboratory Work in Earth Sciences I
- 2024, Liberal Arts Education Program1, 2Term, Experimental Methods and Laboratory Work in Earth Sciences II
- 2024, Liberal Arts Education Program1, 4Term, Experimental Methods and Laboratory Work in Earth Sciences II
- 2024, Liberal Arts Education Program1, 2Term, Experimental Methods and Laboratory Work in Earth Sciences II
- 2024, Undergraduate Education, 2Term, Natural Sciences of Life and Environment
- 2024, Undergraduate Education, 3Term, Environmental Geology
- 2024, Undergraduate Education, Second Semester, Fundamental Laboratory Course in Geology
- 2024, Undergraduate Education, Second Semester, Practical Methods in Geology
- 2024, Undergraduate Education, 3Term, Laboratory Course in Natural Environmental Sciences A
- 2024, Undergraduate Education, 3Term, Practical Methods in Natural Environmental SciencesA
- 2024, Undergraduate Education, 1Term, Laboratory Course in Natural Environmental Sciences B
- 2024, Undergraduate Education, 1Term, Practical Methods in Natural Environmental SciencesB
- 2024, Undergraduate Education, 2Term, Laboratory Course in Natural Environmental Sciences C
- 2024, Undergraduate Education, 2Term, Practical Methods in Natural Environmental SciencesC
- 2024, Undergraduate Education, Intensive, Lecture and Field Work In Natural Environment
- 2024, Undergraduate Education, 3Term, Natural Histories and Sciences
- 2024, Graduate Education (Doctoral Program) , Academic Year, Special Study of Advanced Science and Engineering Transdisciplinary Science and Engineering
- 2024, Graduate Education (Master's Program) , First Semester, Special Exercises of Advanced Science and Engineering Transdisciplinary Science and Engineering A
- 2024, Graduate Education (Master's Program) , Second Semester, Special Exercises of Advanced Science and Engineering Transdisciplinary Science and Engineering B
- 2024, Graduate Education (Master's Program) , 3Term, Transdisciplinary Science and Engineering Program Common Subjects 1 (Smart Development)
- 2024, Graduate Education (Master's Program) , 2Term, Earth Materials
Research Activities
Academic Papers
- Global subterranean estuaries modify groundwater nutrient loading to the ocean, LIMNOLOGY AND OCEANOGRAPHY LETTERS, 20240516
- Spatiotemporal shallow and deep groundwater dynamics in a forested mountain catchment with diverse slope gradients, western Japan, GROUNDWATER FOR SUSTAINABLE DEVELOPMENT, 25, 202405
- Evaluation of the Effects of Environmental Factors on Seasonal Variations in Fish Diversity on a Coastal Island in Western Japan, ENVIRONMENTS, 11(3), 202403
- Evaluation of Phosphorus Enrichment in Groundwater by Legacy Phosphorus in Orchard Soils with High Phosphorus Adsorption Capacity Using Phosphate Oxygen Isotope Analysis, ENVIRONMENTAL SCIENCE & TECHNOLOGY, 58(12), 5372-5382, 20240315
- Assessment of nitrogen budget in detailed spatial pattern using high precision modeling approach with constructed accurate agricultural behavior, SCIENCE OF THE TOTAL ENVIRONMENT, 912, 20240220
- Spatial and temporal dynamics and fluxes estimation of manganese fractions in sediments from the Pearl River Estuary, southern China, MARINE POLLUTION BULLETIN, 197, 202312
- Spatial and Temporal Variations and Risk Assessment of Heavy Metal Fractions in Sediments of the Pearl River Estuary, Southern China, ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, 84(3), 389-399, 202304
- Groundwater Dynamics near the Saltwater-Freshwater Interface in an Island of Seto Inland Sea, WATER, 15(7), 202304
- Isotopes of nitrate and gadolinium fingerprints to assay human inputs in Guarani Aquifer System, ENVIRONMENTAL MONITORING AND ASSESSMENT, 195(2), 202302
- Spatial and temporal variabilities of suspended sediment and dissolved nutrients in the Ca River basin, North Central Vietnam, WATER PRACTICE AND TECHNOLOGY, 18(2), 408-418, 202302
- Groundwater salinity and its effect on elevated concentrations of other contaminants in a coastal plain: a perspective for infrastructure protection, IOP Conference Series: Earth and Environmental Science, 1065, 2022
- Assessment of long-term phosphorus budget changes influenced by anthropogenic factors in a coastal catchment of Osaka Bay, SCIENCE OF THE TOTAL ENVIRONMENT, 843, 20221015
- Nitrate Contamination in Groundwater: Evaluating the Effects of Demographic Aging and Depopulation in an Island with Intensive Citrus Cultivation, WATER, 14(14), 202207
- Effects of forest growth in different vegetation communities on forest catchment water balance, Science of The Total Environment, 809, 20220225
- ★, Evaluation of nitrogen loading in the last 80 years in an urbanized Asian coastal catchment through the reconstruction of severe contamination period, Environmental Research Letters, 20211229
- Long-term variations in water balance by increase in percent imperviousness of urban regions, Journal of Hydrology, 602, 20210814
- Estimation of Phosphorus Transport Influenced by Climate Change in a Rice Paddy Catchment Using SWAT, INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH, 15(4), 759-772, 20210629
- Material transport and cycle in watersheds: toward the interdisciplinary collaboration between limnology and the other research disciplines, Limnology, 21, 20200718
- ★, Evaluation of the spatial distribution of submarine groundwater discharge in a small island scale using the 222Rn tracer method and comparative modeling, Marine Chemistry, 209, 25-35, 20190220
- ★, Nitrogen dynamics in a highly urbanized coastal area of western Japan: impact of sewage-derived loads, Progress in Earth and Planetary Science, 5(1), 20180320
- ★, Effects of physical and morphometric factors on nutrient removal properties in agricultural ponds, WATER SCIENCE AND TECHNOLOGY, 72(12), 20150824
Invited Lecture, Oral Presentation, Poster Presentation
- Assessment of long-term phosphorus discharge and budget changes among last 80 years in to major catchment of Osaka Bay, 2023/08/26, Without Invitation, English
- Phosphorus speciation in marine sediment core of Osaka Bay: Relation to anthropogenic phosphorus loading, Muhammad Shahinur Rahman, Shin-ichi Onodera, Takuya Ishida, Mitsuyo Saito, Kunyang Wang, Takahiro Hosono, Yu Umezawa, 2023/08/26, Without Invitation, English, Research Institute for Seto Island Sea, Yoshida campus, Yamaguchi University
- Spatial and tide-induced variation in groundwater discharge on a tidal flat in an island of Seto Inland Sea, Qidi Gao, Shin-ichi Onodera, Mitsuyo Saito, Yusuke Tomozawa, Reiya Matsubara, 2023/08/26, Without Invitation, English, Research Institute for Seto Island Sea, Yoshida campus, Yamaguchi University
- Spatial evaluation of submarine groundwater discharge (SGD) by mass balances approach on an island scale, Mitsuyo Saito, Nguyen Nhat, Shin-ichi Onodera, Fujio Hyodo, Takuya Akinaga, JpGU2023, 2023/05/26, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Assessment Nitrogen Budget in Detailed Spatial Pattern by Modeling Approach with Constructed Accurate Agricultural Behavior, Kunyang Wang, Shin-ichi Onodera, Mitsuyo Saito, Yuta Shimizu, JpGU2023, 2023/05/26, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Anthropogenic impacts on water resources and nutrient flux in Asian coastal megacities, Shin-ichi Onodera, Mitsuyo Saito, Rusydi Anna, Jianyao Chen, Ridwansyah Iwan, JpGU2023, 2023/05/26, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Modelling suspended sediment transport in a large forested catchment of Western Japan using Soil and Water Assessment Tool, Nang Yu War, Shin-ichi Onodera, Kunyang Wang, Yuta Shimizu, Mitsuyo Saito, JpGU2023, 2023/05/26, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Water security: Integrating Hydrological and Socio-Economic Cycles, Ricardo Hirata, Reginaldo Bertolo, Juliana Gardenalli de Freitas, Alexandra Suhogusoff, Carlos Gamba, Shin-ichi Onodera,
Mitsuyo Saito, Leila Goodarzi, Leonardo Capeleto de Andrade, JpGU2023, 2023/05/26, With Invitation, English, Japan Geoscience Union, Makuhari Messe
- Estimation of Regional Seagrass Biomass and Carbon Content Using UAV Aerial Photography at Multiple Sites, Takuya Akinaga, Mitsuyo Saito, Shin-ichi Onodera, Yusuke Tomozawa, Hideaki Nagare, JpGU2023, 2023/05/26, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Use of Nature-Based Solutions (SbN) for improving the quality of contaminated groundwater by urban nutrients, Reginaldo Antonio Bertolo, Vinicius Rogel P Oliveira, Priscila Ikematsu, Tatiana Luis Tavares, Shin-ichi Onodera, Mitsuyo
Saito, Ricardo Hirata, JpGU2023, 2023/05/26, With Invitation, English, Japan Geoscience Union, Makuhari Messe
- Evaluation of the performance of SWAT model in a karstic watershed by different calibration time steps, Nang Yu War, Shin-ichi Onodera, Kunyang Wang, Yuta Shimizu, Mitsuyo Saito, JpGU2023, 2023/05/25, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Assessment of the phosphorus leaching from phosphorussaturated orchard soils, Takuya Ishida, Saneyuki Tamura, Sharon Bih Kimbi, Yusuke Tomozawa, Mitsuyo Saito, Yasuyuki Hirayama, Itaru Nagasaka, Shin-ichi Onodera, JpGU2023, 2023/05/25, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- EVALUATION OF FISH SPECIES STRUCTURE IN THE COASTAL WATERS USING ENVIRONMENTAL DNA ON AN ISLAND SCALE, Nhat Hong Nguyen, Mayuko Hamada, Mitsuyo Saito, Shin-ichi Onodera, Takuya Akinaga, Hideaki Nagare, JpGU2023, 2023/05/25, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Spatial variation in groundwater discharge on a tidal flat in an island of western japan, Qidi Gao, Shin-ichi Onodera, Mitsuyo Saito, Yusuke Tomozawa, Reiya Matsubara, JpGU2023, 2023/05/25, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Impact of Anthropogenic phosphorus loading on authigenic apatite in marine sediment of Osaka Bay, Muhammad Shahinur Rahman, Shin-ichi Onodera, Takuya Ishida, Mitsuyo Saito, Kunyang Wang, Takahiro Hosono, Yu Umezawa, JpGU2023, 2023/05/25, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Water and Nutrients Budget in Agricultural and Urban Catchment, Sai Tun Aung Si, Shin-ichi Onodera, Kunyang Wang, Mitsuyo Saito, Sharon Bih Kimbi, JpGU2023, 2023/05/25, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Sediment budget and discharge at a small pond of an agricultural land in a subtropical island, Wanna Zaw, Shin-ichi Onodera, Mitsuyo Saito, Hide Omae, Yoshiko Iizumi, Yang Cao, JpGU2023, 2023/05/25, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Spatial and Temporal Water Balance in a Forested Catchment in Western Japan Using the SWAT Model, Rendilicha Halake Guyo, Kunyang Wang, Mitsuyo Saito, Shin-ichi Onodera, Sharon Bih Kimbi, Nang Yu War, Yuta Shimizu,
Toshitsugu Moroizumi, JpGU2023, 2023/05/25, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Estimate of Annual Total Phosphorus Loading from Yodo River Catchment during 1940s~2010s, Kunyang Wang, Shin-ichi Onodera, Mitsuyo Saito, JpGU2023, 2023/05/25, Without Invitation, English, Japan Geoscience Union, Makuhari Messe
- Groundwater Nitrate contamination by farmer activity in an Intensive citrus island, Osakishimojima (Seto Inland Sea, Japan), Sharon Bih Kimbi; Onodera, Shin-ichi; Saito, Mitsuyo; Ishida, Takuya; Tomozawa, Yusuke; Nagasaka, Itaru, JAHS Annual Meeting 2022, 2022/09/05, Without Invitation, English, Kyoto University Uji Obaku Plaza
- Assessment of long-term phosphorus loading and budget changes
influenced by anthropogenic factors in a coastal catchment of Osaka Bay, Wang, Kunyang; Onodera, Shin-ichi; Saito, Mitsuyo; Ishida, Takuya, JAHS Annual Meeting 2022, 2022/09/04, Without Invitation, English, Kyoto University Uji Obaku Plaza
- Estimation of spatial variation of groundwater recharge rate in Asahi River catchment, western Japan using SWAT, Rendilicha Halake Guyo, Yuta Shimizu, Mitsuyo Saito, Shin-ichi Onodera, Yusuke Tomozawa, Sharon Bih Kimbi, Kunyang Wan, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Quantitative evaluation of water and nutrient discharge by a hydrological model in the sub-catchments of Osaka Bay, Kawaguchi, Tomoya; Saito, Mitsuyo; Wang, Kunyang; Onodera, Shin-ichi, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Seasonal variation in groundwater quality and greenhouse gas in agricultural areas, Saito, Mitsuyo; Onodera, Shin-ichi; Kameyama, Riku; Tomozawa, Yusuke; Iwata, Toru, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Unconfined groundwater flow around saltwater – freshwater interface in a small granitic island, Tomozawa, Yusuke; Onodera, Shin-ichi; Saito, Mitsuyo; Nozaki,Shingo; Aritomi, Daiki; Asai, Kazuyoshi, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Comparison and Origin Estimation of Groundwater Dissolved Phosphorus in Coastal Agricultural Waters, Tamura, Saneyuki; Ishida, Takuya; Onodera, Shin-ichi; Saito, Mitsuyo; Kimbi, Sharon; Tomozawa, Yusuke; Nagasaka, Itaru, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Evaluation of the spatial distribution of seagrass-seaweed beds including different species in shallow coastal waters using UAV, Akinaga, Takuya; Saito, Mitsuyo; Onodera, Shin-ichi; Tomozawa, Yusuke, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Island-scale spatial variation in the coastal environmental factors: Case study in the Seto Inland Sea, western Japan, Nhat Hong Nguyen, Mitsuyo Saito, Mayuko Hamada, Shin-ichi Onodera, Takuya Akinaga, Aiping Zhu, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Estimation of suspended sediment discharge in Takahashi River using Soil and Water Assessment Tool, Nang Yu War, Shin-ichi Onodera, Mitsuyo Saito, Yuta Shimizu, Kunyang Wang, Yusuke Tomozawa, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Does weekly data could fill the bridge between daily and monthly data in modeling work?, Kunyang Wang, Shin-ichi Onodera, Mitsuyo Saito, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Evaluation Of Sources and Fate of Nitrate in the Agricultural Island of Osakishimojima (Seto Inland Sea, Japan) Using Nitrogen Isotope, Sharon Bih Kimbi, Shin-ichi Onodera, Mitsuyo Saito, Takuya Ishida, Makoto Tamura, Yusuke Tomozawa, Nagasaka Itaru, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Sources and dynamics of phosphorus in the sediments of Lake Biwa using phosphate oxygen isotope analysis, Ishida Takuya, Okuda Noboru, Tomozawa Yusuke, Onodera Shin-ichi, Saito Mitsuyo, Xin Liu, Goto Naoshige, Ban Syuhei, Japan Geoscience Union Meeting 2022, 2022/06/01, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Long-term Phosphorus Balance Changes influenced by Anthropologic Factors in Yamato River Catchment, Kunyang Wang, Shin-ichi Onodera, Mitsuyo Saito, Takuya Ishida, Japan Geoscience Union Meeting 2022, 2022/05/24, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Nitrogen and phosphorus ratios in various groundwater in Japanese agricultural areas, Onodera, Shin-ichi; Saito, Mitsuyo; Tamura, Masayuki; Ishida, Takuya; Shimizu, Yuta, Japan Geoscience Union Meeting 2022, 2022/05/24, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Sediment yield and sedimentation rate at several settling basins in the northern part of Okinawa Island, Hirose, Takashi; Nakasone, Kenta; Kawashima, Shigekazu; Onodera, Shin-ichi; Saito, Mitsuyo, Japan Geoscience Union Meeting 2022, 2022/05/24, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Conservation of Coastal Ecosystem and Coral Reef with the Management of Settling Basin: The Usefulness and its Economic
Assessment, Kawashima Shigekazu, Saito Mitsuyo, Hirose Takashi, Onodera Shin-ichi, Japan Geoscience Union Meeting 2022, 2022/05/24, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Effect of seagrass-seaweed bed dynamics on carbon and nitrogen cycles on a tidal flat scale, Saito, Mitsuyo; Onodera, Shin-ichi; Hyodo, Fujio; Iwamoto, Kazuki; Akinaga, Takuya, Japan Geoscience Union Meeting 2022, 2022/05/24, Without Invitation, English, Japan Geoscience Union, Makuhari Messe (in Chiba)
- Potential impacts of groundwater-borne nutrients on coastal areas in changing human activities and climate, Mitsuyo Saito, ECSA58&EMECS13: Estuaries and coastal seas in the Anthropocene - Structure, functions, services and management, 2021/09/06, With Invitation, English
External Funds
Acceptance Results of Competitive Funds
- KAKENHI(Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))), 2022, 2024
- 2022, 2024
- 2022, 2024
- 2021, 2023
- 2022, 2022
- 2023, 2023
- 2019, 2021
- 2021, 2024
Social Activities
Organizing Academic Conferences, etc.
- JpGU2023 A-HW18: Material transportation and cycling at the land-sea interface: from headwaters to the ocean, 2023/
- JpGU2022 A-HW24: Material transportation and cycling at the land-sea interface: from headwaters to the ocean, 2022/