The Mitsui & Co. Environment Fund
Introduction to Grant Projects
Department of Architecture and Civil Engineering, Toyohashi University of Technology Professor Takanobu Inoue
Elucidation of "red tide," oxygen-deficient water mass formation on Mikawa Bay due to rainfall-induced nutrient influx loading
Research grant
- Project Description
This research has, as its ultimate goal, a proposition of a concrete, scientifically based method for controlling the formation of "red tides" and oxygen-deficient water masses and, by that, restoring the ecosystem of Mikawa Bay. We focus on influxes of nutrients into Mikawa Bay following rainfalls and on responses to same within the bay. We then reveal nutrient circulation behavior as pertain to three points: loading mechanisms from the watershed (and atmosphere); arrangement by which inflowed nutrients transition to "red tide"/oxygen-deficient water mass formation; and water-purification capabilities of eelgrass beds and tidal flats. Based on the results of this survey, we next develop a model to simulate the formation of "red tides" and oxygen-deficient water masses by addressing the dynamics of nutrient influx loading and subsequent in-bay movement. And, using this model, we propose measures to lighten nutrient loading and develop tidal flats/eelgrass beds, with said measures being both practical and effective for improving the environment of Mikawa Bay.
- Fields
- Marine resources/foodPreservation of surface soil and forestsPreservation of biodiversity and ecosystem
- Grant year
- FY2008 Research Grants
- Grant term
- 3 years
April 2009 - March 2012
- Grant amount
- 14,250,000 yen
- Activity region
- Mikawa Bay watershed, Aichi Prefecture, Japan
Overview of the Organization
- Representative
- Professor Takanobu Inoue
- Profile
- Specialist fields
Aquatic environmental protection engineering; sanitary engineering
Affiliated academic societies
Japan Society of Civil Engineers; Japan Society of Water Environment; International Water Association; Japan Society of Hydrology and Water Resource; Japanese Society of LIMNOLOGY; Society of Environmental Science, Japan; Pesticide Society of Japan; Japanese Society of Environmental Toxicology
Background
In June 1990 became a Researcher at the Soil Environment Section, National Institute for Environmental Studies. In March 1993 completed a Ph.D. (engineering). In April 1994, took a position of Senior researcher in the Soil Environment Section, National Institute for Environmental Studies. In April 2002 became an Assistant Professor at the Faculty of Engineering and Graduate School of Engineering, Gifu University. In April 2004 became a Professor at the Department of Architecture and Civil Engineering, Toyohashi University of Technology - WEB site
- http://www.tut.ac.jp
- Collaborating researchers
- Shinichi AOKI, Professor, Dept. of Architecture and Civil Engineering, Toyohashi University of Technology; Toshihiro KITADA, Professor, Toyohashi University of Technology; Akihiko MORIGUCHI, Team Leader, Research Center of Agriculture, Forestry and Fisheries (Fisheries Research Agency); Tsutomu SAKAI, Aichi Environmental Research Center; Hajime ISHIKAWA, Branch Manager, Higashi-Mikawa Branch, Aichi Environmental Research Center; Motoo ISHIDA, Aichi Fisheries Research Institute; Tetsuya ICHIKAWA, Science and Technology Co., Ltd.
- Research record
-
- (1) Dynamic environmental analysis of influx loading from a nutrient-rich watershed, Kouji TSUSHIMA, Takanobu INOUE, Kunihiko FUJITA, Yuji KANEKO, Shinichi AOKI, Jinhee YUK, Toshiro YAMADA; Distribution of Extracted Phosphorus from Bottom Sediment in Lake Inohana, Proceedings of Environmental Engineering Research, 45, 517-522, 2008.
- (2) Yamada, T. and Inoue, T., Influence of phosphorus runoff from agricultural areas on enclosed sea downstream, Journal of Water and Environment Technology, 3(2),157-164, 2005.
- (3) Takanobu INOUE, Pollutant load factor from nonpoint source: present state and task for the future, Journal of Japan Society on Water Environment 26(3), 131-134, 2003.
- (4) Takanobu INOUE, Senichi EBISE and Akio IMAI, Evaluation of Chl-a loading in a rural river, Journal of Japan Society of Civil Engineers, 594 (VII-7), 11-20, 1998.
- (5) Takanobu INOUE, Senichi EBISE, Simulation on annual change of periphyton biomass in the river, Journal of Japan Society on Water Environment 17 (3), 169-177, 1994.
- (6) Takanobu INOUE, Senichi EBISE, Estimation on Seasonal Change and Loss by Scouring of Periphyton Biomass in the River, Journal of Japan Society on Water Environment 16 (7), 507-515, 1993.
- (7) Takanobu INOUE, Pesticide Burden of Agricultural Production now and in the Future, Journal of Japan Society on Water Environment 30 (7), 348-351, 2007.