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Tanikawa Lab (Environmental and Social Systems Engineering Lab)
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The lab measures the 'weight' of cities and explores a sustainable stock-based society.

AboutAbout the lab
Measuring the mass of cities, toward a stock-based society.
The Tanikawa Lab (Environmental and Social Systems Engineering Lab) studies environmental systems for achieving better, sustainable ways of living.
Using material stock and flow analysis, which examines the materials accumulated in society and how they move, the lab analyzes whether the accumulation and circulation of materials are healthy, in relation to nature, society, and economic activity.
The lab also uses methods such as geographic information analysis (GIS) and input-output analysis to conduct research and education on the relationship between human activity and the natural environment from an international perspective.
Students come from Japan and abroad, and they actively present at both international and domestic conferences.
Key terms
- Material stock and flow analysis
- A method of examining the amount of material accumulated in society (stock) and the amount moving in and out (flow) to clarify how resources are used
- GIS
- A system that links data to locations on a map and analyzes them by overlaying layers. Stands for geographic information system
- Input-output analysis
- A method that compiles the exchange of goods and money between industries into a table and calculates how a change in one industry affects others
NewsLab news
A student received the Hisato Okamoto Award (Best Presentation Award) at the 2nd Stock-Based Society Systems Research Conference
A student received the Excellent Presentation Award at the 2nd Stock-Based Society Systems Research Conference
Information has been posted for working professionals who are considering entering the doctoral program
A student received the Hisato Okamoto Award (Best Presentation Award) at the 1st Stock-Based Society Systems Research Conference
A student received the Excellent Presentation Award (Fuji Electric Award) at the 2024 Annual Meeting of the Society of Environmental Science, Japan
ResearchResearch themes
The lab conducts international research and education through environmental systems analysis, focusing on the relationship between human activity and the natural environment. Using methods such as material stock and flow analysis, geographic information analysis (GIS), and input-output analysis, it works on low-carbon and low-material sustainable cities, sustainability assessed by measuring the weight of cities, environmental problems in China, and the sustainable use of regional resources such as forests.
View More ↗MembersFaculty
The members of the Tanikawa Lab are faculty members, technical staff, doctoral, master's, and undergraduate students, and research students.As of 2026
- ProfessorHiroki Tanikawa
- Associate ProfessorHiroaki Shirakawa
- Project LecturerMARTINICO-PEREZ Marianne Faith gauran
- Assistant ProfessorMasatoshi Hasegawa
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Scrap metal yard” Digitura / CC0 (cropped)
- Related lab (Shiraki Lab): “Wind turbine and solar panels - geograph.org.uk - 6529328” Philip Jeffrey / CC BY-SA 2.0 (cropped)
- Related lab (Hayashi Lab (Environmental Symbiosis and Ecological Systems / Energy and Environmental Ecology Systems Cooperating Chairs)): “Solar farm at Krishnapuram Tatipudi Water Works aerial view 01” Saiphani02 / CC BY-SA 4.0 (cropped)
- Related lab (Environmental and Building Services Engineering (Iizuka) Lab): “Lower Manhattan from Jersey City November 2014 panorama 3” King of Hearts / CC BY-SA 3.0 (cropped)
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