Latest Update：2025/04/18 11:00:08

TAJIMA Ryo

Researcher Name: TAJIMA Ryo

Div (Section) name/title: Material Cycles Division（Material Cycles and Social Systems Research Section）／Senior Researcher

Research Subject: Planning and management for integrated waste management

Degree(s): Ph.D.

Professional Qualification(s): Policy Studies,Policy Administration,Sociology

Environmental Speciality Field: Disaster waste management,Environmental management and planning,Environmental impact assessment

Keyword(s): Disaster waste management plan,Disaster resilience,Participatory training methods,Qualitative research,Policy appraisal,International Comparison

Brief Description of Research: Planning and public management for disaster resilient material cycle and waste management
Disaster waste management is one of the major issues for prompt and sustainable recovery from disasters. In order to effectively handle both general and disaster wastes under disaster situation, where time and resource constraints are serious, planning and public management of tasks, organization, personnel, equipment, budget etc. are crucial. In other words, it is essential to pursue sustainable and disaster resilient material cycle and waste management at local level. Under this topic, local governance structure and methodology for waste management, waste amount estimation models, management tools to support sustainable and resilient waste management decision making are studied.

Waste management in aging society
28% of the Japanese population is aged over 65. In terms of waste management, there are some issues related to aging, including disposal of home-medical care waste, treatment of disposable diapers, waste disposal by aged households, etc. Studies on waste disposal supporting mechanism for aged households are in progress, with a special focus on secondary effect in terms of welfare and community development.

Membership of Academic Society: Japan Society of Material Cycles and Waste Management,Japan Association for Planning Administration,Institute of Social Safety Science,Japan society for natural disaster science

Research Subject

Fiscal Year: 2024
- 26808 : -
- 26811 : Decarbonized and Sustainable Society Research Program
- 26846 : Making a resilient material cycle and waste management system at local level to tackle mega-disasters
- 26855 : Establishing a Regime Inclusive of Future Generations in a Sustainable Society
- 26993 : Methodology development to promote behaviour change using the Climate Change
- 27073 : Policy and Management Study for Material Cycles and Waste Management
- 27084 : Study on the major technical aspects related to the development of local disaster waste management policies
- 27085 : Environmental Emergency Management Office
- 27156 : International Waste Management Research Administration Office
- 27157 : Strengthening of Network Enabling Waste Management Scheme in Response to Disaster and Climate Change
- 27159 : Advancement of waste treatment and disposal technology and its adaptation to Asia
- 27160 : Studies on Infection Prevention Measures during Collection and Transportation of Municipal Solid Waste
Fiscal Year: 2023
- 26405 : -
- 26406 : Decarbonized and Sustainable Society Research Program
- 26433 : Making a resilient material cycle and waste management system at local level to tackle mega-disasters
- 26440 : Establishing a Regime Inclusive of Future Generations in a Sustainable Society
- 26548 : Environmental Emergency Management Office
- 26559 : Policy and Management Study for Material Cycles and Waste Management
- 26610 : Studies on Infection Prevention Measures during Collection and Transportation of Municipal Solid Waste
- 26648 : Study on the major technical aspects related to the development of local disaster waste management policies
- 26696 : Advancement of waste treatment and disposal technology and its adaptation to Asia
- 26698 : International Waste Management Research Administration Office
- 26703 : Strengthening of Network Enabling Waste Management Scheme in Response to Disaster and Climate Change
- 26758 : Methodology development to promote behaviour change using the Climate Change
Fiscal Year: 2022
- 25984 : Decarbonized and Sustainable Society Research Program
- 25987 : Establishing a Regime Inclusive of Future Generations in a Sustainable Society
- 25990 : Proposal and evaluation of environmentally efficient technologies and systems in collaboration with local communities
- 25993 : -
- 25998 : Making a resilient material cycle and waste management system at local level to tackle mega-disasters
- 26065 : Conceptual design of an online tool for consumers to understand and reduce their material and carbon footprints
- 26110 : Policy and Management Study for Material Cycles and Waste Management
- 26198 : Environmental Emergency Management Office
- 26252 : International Waste Management Research Administration Office
- 26256 : Strengthening of Network Enabling Waste Management Scheme in Response to Disaster and Climate Change
- 26292 : Study on the major technical aspects related to the development of local disaster waste management policies
- 26348 : Studies on Infection Prevention Measures during Collection and Transportation of Municipal Solid Waste
- 26364 : Advancement of waste treatment and disposal technology and its adaptation to Asia
Fiscal Year: 2021
- 25504 : Decarbonized and Sustainable Society Research Program
- 25523 : Proposal and evaluation of environmentally efficient technologies and systems in collaboration with local communities
- 25530 : Making a resilient material cycle and waste management system at local level to tackle mega-disasters
- 25534 : Establishing a Regime Inclusive of Future Generations in a Sustainable Society
- 25693 : Policy and Management Study for Material Cycles and Waste Management
- 25782 : Conceptual design of an online tool for consumers to understand and reduce their material and carbon footprints
- 25786 : Study on the major technical aspects related to the development of local disaster waste management policies
- 25788 : Advancement of waste treatment and disposal technology and its adaptation to Asia
- 25831 : Environmental Emergency Management Office
- 25873 : International Waste Management Research Administration Office
Fiscal Year: 2020
- 25097 : Sustainable Material Cycles Research Program
- 25103 : Environmental Emergency Management Research Program
- 25125 : Environmental Emergency Management Office
- 25133 : Proposal of Transition Paths and Adaptation Measures for a Circular Society
- 25159 : Establishment of disaster resilience in material cycle and waste management system
- 25161 : Development of environmental emergency management capacity
- 25162 : Environmental Emergency Research Program
- 25184 : Studies on Adaptation Strategies Considering Social Change
- 25221 : Policy and Management Study for Establishing a Sound Material-cycle Society
- 25358 : Development of organizational management methodology for smaller public authorities towards appropriate disaster waste management
- 25400 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
Fiscal Year: 2019
- 24694 : Sustainable Material Cycles Research Program
- 24698 : Environmental Emergency Research Program
- 24713 : Proposal of Transition Paths and Adaptation Measures for a Circular Society
- 24741 : Environmental Emergency Management Research Program
- 24742 : Establishment of disaster resilience in material cycle and waste management system
- 24744 : Development of environmental emergency management capacity
- 24758 : Environmental Emergency Management Office
- 24884 : Policy and Management Study for Establishing a Sound Material-cycle Society
- 24945 : Development of organizational management methodology for smaller public authorities towards appropriate disaster waste management
- 24984 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
- 24990 : Studies on Adaptation Strategies Considering Social Change
Fiscal Year: 2018
- 24296 : Proposal of transition paths and adaptation measures for a circular society
- 24333 : Environmental Emergency Management Research Program
- 24334 : Establishment of disaster resilience in material cycle and waste management system
- 24336 : Development of environmental emergency management capacity
- 24341 : Environmental Emergency Management Office
- 24353 : Sustainable Material Cycles Research Program
- 24357 : Environmental Emergency Research Program
- 24408 : Policy and Management Study for Establishing a Sound Material-Cycle Society
- 24539 : Development of Organizational Management Methodology for Smaller Public Authorities towards Appropriate Disaster Waste Management
- 24619 : Appropriate Solid Waste Management towards flood risk reduction through recovery of drainage function in tropical Asian urban cities
- 24620 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
Fiscal Year: 2017
- 23832 : Proposal of transition paths and adaptation measures for a circular society
- 23844 : Sustainable Material Cycles Research Program
- 23848 : Environmental Emergency Research Program
- 23862 : Environmental Emergency Management Office
- 23873 : Environmental Emergency Management Research Program
- 23874 : Establishment of disaster resilience in material cycle and waste management system
- 23876 : Development of environmental emergency management capacity
- 23964 : Policy and Management Study for Establishing a Sound Material-Cycle Society
- 24042 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
- 24081 : Estimation technique of disaster wastes in large-scale disaster in connection with the field of disaster prevention
- 24134 : Appropriate Solid Waste Management towards flood risk reduction through recovery of drainage function in tropical Asian urban cities
Fiscal Year: 2016
- 23402 : Sustainable Material Cycles Research Program
- 23405 : Proposal of transition paths and adaptation measures for a circular society
- 23436 : Environmental Emergency Management Research Program
- 23437 : Establishment of disaster resilience in material cycle and waste management system
- 23439 : Development of environmental emergency management capacity
- 23488 : Policy and Management Study for Establishing a Sound Material-Cycle Society
- 23560 : Appropriate Solid Waste Management towards flood risk reduction through recovery of drainage function in tropical Asian urban cities
- 23706 : Establishment of Collaboration and Dissemination of Waste Related Research to Asian Countries
- 23721 : Environmental Emergency Management Office
- 23732 : Environmental Emergency Research Program
Fiscal Year: 2015
- 23038 : Development of management systems for radioactively contaminated off-site wastes
- 23044 : Environmental Emergency Management Research Program
- 23045 : Implementation Strategy for Resilience in Material Cycle and Waste Management
- 23047 : Networking of Disaster and Environmental Emergency Research
- 23055 : Systems approach and policy study on life-cycle resource management
- 23181 : Establishment of management technologies and systems for disaster and radioactively contaminated wastes
- 23318 : Design of research hub for sustainable urban system and waste management
- 23319 : Adaptation of solid waste management to frequent floods in vulnerable mid-scale Asian cities
Fiscal Year: 2014
- 22650 : Development of management systems for radioactively contaminated off-site wastes
- 22656 : Environmental Emergency Management Research Program
- 22657 : Implementation Strategy for Resilience in Material Cycle and Waste Management
- 22659 : Networking of Disaster and Environmental Emergency Research
- 22776 : Systems approach and policy study on life-cycle resource management
Fiscal Year: 2013
- 22244 : Systems approach and policy study on life-cycle resource management
- 22523 : Study for establishment of appropriate technology and system for disaster and radioactive contaminated waste management and disposal
Fiscal Year: 2012
- 21779 : Establishment of management technologies and systems for disaster and radioactively contaminated wastes
- 21804 : Systems approach and policy study on life-cycle resource management
- 22052 : Study for establishment of appropriate technology and system for disaster and radioactive contaminated waste management and disposal

View all

Research Result (Publication)

all
Original Paper
Review
Book
Other Publications

Original Paper
Who is self-committed to climate action? Exploring decarbonisation actions and target gaps using carbon footprint calculator data in Japan

Presenter : Koide R., Hata S., Tajima R., Yoko H., Lettenmeier M., Nansai K.
Title : , Energy Research & Social Science, 120:103930 (2025)
Original Paper
Possible Causes of River Waste in Southeast Asian Cities: A Literature Review

Presenter : Muhamad A., Tajima R.
Title : , Global Environmental Research, 28 (1):37-43 (2024)
Original Paper
Characteristics That Influence Individuals’ Intentions to Use and Bequeath Common Assets: Time-Perspective Scales and Demographic Attributes

Presenter : Tasaki T., Yokoo H., Tajima R., Yamaguchi R.
Title : , Sustainability, 15(20):14832 (2023)
Original Paper
Conceptualizing disaster waste governance using network governance perspectives

Presenter : Tajima R., Tsuji T., Suzuki K., Muhamad A.
Title : , International Journal of Disaster Risk Reduction, 99:104137 (2023)
Original Paper
Overview of the Environmental Emergency Management Studies in National Institute for Environmental Studies (NIES)

Presenter : Tajima R., Osako M.
Title : , Global Environmental Research, 24(2):253-260 (2021)
Original Paper
Strategy to Promote Residents’ Behaviors for Appropriate Disaster Waste Management

Presenter : Mori T., Tajima R.
Title : , Global Environmental Research, 24(2):267-274 (2021)
Other Publications
Expanding the Scope of Environmental Emergency Research towards Disaster-resilience and Environmental Sustainability

Presenter : Ohara T., Tajima R., Hirano Y., Iino S., Hayashi S.
Title : , Global Environmental Research, 24(2):275-278 (2021)
Original Paper
Measurement of the Importance of 11 Sustainable Development Criteria_How Do the Important Criteria Differ among Four Asian Countries and Shift as the Economy Develops

Presenter : Tasaki T., Tajima R., Kameyama Y.
Title : , Sustainability, 13:9719 (2021)
Other Publications
−

Presenter : Ishigaki T., Kawai K., Kubota R., Lieu P.K., Jarusombat S., Tajima R., Towprayoon S., Yoochatchaval W., Yamada M. (2019)
Other Publications
Project Overview. Analysis of peoples' behavior on waste disposal and scattering. Future Directions

Presenter : Ishigaki T., Yamada M., Kawai K., Tajima R., Kubota R., Nakamura K. (2018)
Other Publications
2.6 Development of numerical model for debris clogging in canal. 3.4 Analysis of mechanism of debris clogging in canal using numerical model. 4Conclusions

Presenter : Ishigaki T., Yamada M., Kawai K., Tajima R., Kubota R., Nakamura K., Towprayoon S., Wangyao K., Chiemchaisri C., Jarusombat S., Yoochatchaval W., Thaweesub R., Lieu P.K., Tin H.C. (2018)
Book
−

Presenter : Sakai S., Yoshioka T., Tsukiji M., Okayama T., Watanabe K., Ishigaki T., Tajima R., Suzuki S., Takai A., Kaji M., Tomoda K., Asari M.
Title : , Disaster Waste Management Guideline for Asia and the Pacific (2018)
Other Publications
−

Presenter : Yamada M., Ishigaki T., Tajima R., Kubota R., Towprayoon S., Wangyao K., Chiemchaistri C. (2015)
Review
An Outline of Disaster Waste Management for the Great East Japan Earthquake from a Technological and Administrative Point of View

Presenter : Osako M., Tajima R.
Title : , Global Environmental Research, 18(1):73-80 (2014)
Original Paper
Policy Integration of Environmental Assessment and Disaster Management

Presenter : Tajima R., Gore T., Fischer T. B.
Title : , Journal of Environmental Assessment Policy and Management, 16(3):1450028-1-1450028-28 (2014)
Original Paper
Theory and practice of pre-disaster planning for disaster waste management

Presenter : Tajima R., Hirayama N., Osako M.
Title : , Journal of Society for Social Management Systems (2013)

View all

Who is self-committed to climate action? Exploring decarbonisation actions and target gaps using carbon footprint calculator data in Japan

Presenter : Koide R., Hata S., Tajima R., Yoko H., Lettenmeier M., Nansai K.
Title : , Energy Research & Social Science, 120:103930 (2025)
Possible Causes of River Waste in Southeast Asian Cities: A Literature Review

Presenter : Muhamad A., Tajima R.
Title : , Global Environmental Research, 28 (1):37-43 (2024)
Characteristics That Influence Individuals’ Intentions to Use and Bequeath Common Assets: Time-Perspective Scales and Demographic Attributes

Presenter : Tasaki T., Yokoo H., Tajima R., Yamaguchi R.
Title : , Sustainability, 15(20):14832 (2023)
Conceptualizing disaster waste governance using network governance perspectives

Presenter : Tajima R., Tsuji T., Suzuki K., Muhamad A.
Title : , International Journal of Disaster Risk Reduction, 99:104137 (2023)
Overview of the Environmental Emergency Management Studies in National Institute for Environmental Studies (NIES)

Presenter : Tajima R., Osako M.
Title : , Global Environmental Research, 24(2):253-260 (2021)
Strategy to Promote Residents’ Behaviors for Appropriate Disaster Waste Management

Presenter : Mori T., Tajima R.
Title : , Global Environmental Research, 24(2):267-274 (2021)
Measurement of the Importance of 11 Sustainable Development Criteria_How Do the Important Criteria Differ among Four Asian Countries and Shift as the Economy Develops

Presenter : Tasaki T., Tajima R., Kameyama Y.
Title : , Sustainability, 13:9719 (2021)
Policy Integration of Environmental Assessment and Disaster Management

Presenter : Tajima R., Gore T., Fischer T. B.
Title : , Journal of Environmental Assessment Policy and Management, 16(3):1450028-1-1450028-28 (2014)
Theory and practice of pre-disaster planning for disaster waste management

Presenter : Tajima R., Hirayama N., Osako M.
Title : , Journal of Society for Social Management Systems (2013)

View all

An Outline of Disaster Waste Management for the Great East Japan Earthquake from a Technological and Administrative Point of View

Presenter : Osako M., Tajima R.
Title : , Global Environmental Research, 18(1):73-80 (2014)

View all

−

Presenter : Sakai S., Yoshioka T., Tsukiji M., Okayama T., Watanabe K., Ishigaki T., Tajima R., Suzuki S., Takai A., Kaji M., Tomoda K., Asari M.
Title : , Disaster Waste Management Guideline for Asia and the Pacific (2018)

View all

Expanding the Scope of Environmental Emergency Research towards Disaster-resilience and Environmental Sustainability

Presenter : Ohara T., Tajima R., Hirano Y., Iino S., Hayashi S.
Title : , Global Environmental Research, 24(2):275-278 (2021)
−

Presenter : Ishigaki T., Kawai K., Kubota R., Lieu P.K., Jarusombat S., Tajima R., Towprayoon S., Yoochatchaval W., Yamada M. (2019)
Project Overview. Analysis of peoples' behavior on waste disposal and scattering. Future Directions

Presenter : Ishigaki T., Yamada M., Kawai K., Tajima R., Kubota R., Nakamura K. (2018)
2.6 Development of numerical model for debris clogging in canal. 3.4 Analysis of mechanism of debris clogging in canal using numerical model. 4Conclusions

Presenter : Ishigaki T., Yamada M., Kawai K., Tajima R., Kubota R., Nakamura K., Towprayoon S., Wangyao K., Chiemchaisri C., Jarusombat S., Yoochatchaval W., Thaweesub R., Lieu P.K., Tin H.C. (2018)
−

Presenter : Yamada M., Ishigaki T., Tajima R., Kubota R., Towprayoon S., Wangyao K., Chiemchaistri C. (2015)

View all

Research Result (Presentation)

all
Research Presentation
Research Lecture

Research Presentation
Evaluating the effectiveness of a carbon footprint calculator on environmental citizenship and policy support: Insights from randomised controlled trials and user segmentation analysis in the context of the 1.5-degree target

Presenter : Koide R., Hata S., Tajima R., Yoko H., Lettenmeier M., Nansai K.
Name of Society : SCORAI Europe Conference 2025 (2025)
Name of Proceedings : Abstracts
Research Presentation
Disaster waste governance in Japan: actors and institutions

Presenter : Tajima R., Tsuji T., Suzuki K., Muhamad A.
Name of Society : The 6th Symposium of the International Waste Working Group Asian Regional Branch (2025)
Name of Proceedings : Abstracts, 79
Research Presentation
GIS-Based Documentation of River Waste Facilities in Jakarta: Towards Optimization of the Transportation System

Presenter : Muhamad A., Tajima R.
Name of Society : The 35th Annual Conference of Japan Society of Material Cycles and Waste Management (2024)
Name of Proceedings : Abstracts, 35(B2-6-O):113-114
Research Presentation
Dynamics of River Waste in Jakarta: Quantity and Environmental Influences

Presenter : Muhamad A., Tajima R.
Name of Society : The 10th 3R International Scientific Conference on Material Cycles and Waste Management (2024)
Name of Proceedings : Abstracts, 10
Research Presentation
From Rivers to Seas: Current State and Challenges of River Waste Management in Jakarta, Indonesia

Presenter : Muhamad A., Tajima R.
Name of Society : The 5th Sustainability and Resilience of Coastal Management 2024 (2024)
Name of Proceedings : Abstracts, 5(1):54
Research Presentation
Waste Flow Analysis in Riverside Community: A Case Study of Kampung Melayu Subdistrict, Jakarta, Indonesia

Presenter : Muhamad A., Tajima R.
Name of Society : The 34th Annual Conference of Japan Society of Material Cycles and Waste Management (2023)
Name of Proceedings : Abstracts, 34(A2-4-O):27-28
Research Presentation
How long ahead of time in the future are people considering? Future horizon for sustainable society

Presenter : Tasaki T., Yokoo H., Tajima R., Yamaguchi R.
Name of Society : 2023 SCORAI-ERSCP-WUR Conference (2023)
Name of Proceedings : Book of abstract, 416
Research Presentation
Factors that improve elderly’s access to external help for disaster waste clean-up

Presenter : Suzuki K., Tajima R., Tsuji.t
Name of Society : 3RINCs 2023 The 3R International Scientific Conference on Material Cycles and Waste Management (2023)
Name of Proceedings : Abstracts
Research Presentation
Flood Waste Governance towards Community Resilience in Jakarta, Indonesia - A Preliminary Study

Presenter : MUHAMAD A., Tajima R.
Name of Society : The 3R International Scientific Conference on Material Cycles and Waste Management (3RINCs) (2023)
Name of Proceedings : Abstracts, 1:144-145
Research Presentation
Characteristics of the institutional framework for disaster waste governance in Japan

Presenter : Tajima R.
Name of Society : 13th International Conference on Sustainable Waste Management & Circular Economy & IPLA Global Forum 2023 (2023)
Name of Proceedings : -
Research Presentation
Challenges and Key Factors in River and Flood Waste Governance: A case study of Jakarta City, Indonesia

Presenter : Muhamad A., Tajima R.
Name of Society : The 39th International Solid Waste Association (ISWA) World Congress 2023 (2023)
Name of Proceedings : -
Research Presentation
COVID-19 impact on waste management behavior: a review

Presenter : Tajima R.
Name of Society : 8th International Conference on Sustainable Energy and Environment (2022)
Name of Proceedings : Abstracts, 170
Research Lecture
Temporary Storage Sites for Disaster Waste Management

Presenter : Tajima R.
Name of Society : Mentoring Session for Makati city Disaster Waste Contingency Planning (2021)
Name of Proceedings : -
Research Presentation
Implementation of method for systematic understanding of disaster waste management flow

Presenter : Masuda H., Asari M., Tajima R.
Name of Society : 3RINCs2021 (2021)
Name of Proceedings : Abstracts
Research Lecture
Preparing Temporary Storage Site (TSS) before a disaster

Presenter : Tajima R., Tsukiji M.
Name of Society : 3RINCs2021 (2021)
Name of Proceedings : -
Research Presentation
Development of a process to invoke community actions to reduce canal waste: a case in Bangkok

Presenter : Tajima R., Kubota R., Janamporn S., Jarusombat S., Palakhamarn T.
Name of Society : 3RINCs2021 (2021)
Name of Proceedings : Abstracts
Research Presentation
A survey and experiment on Japanese perceptions and attitudes to time and the future

Presenter : Tasaki T., Yokoo H., Kameyama Y., Matsuhashi K., Shiogama H., Tajima R., Yamaguchi R.
Name of Society : EcoDesign 2021 (2021)
Name of Proceedings : Proceedings
Research Presentation
Comprehensive structure of a disaster waste management project based on the Japanese experience

Presenter : Tajima R.
Name of Society : 6th 3RINCs (2020)
Name of Proceedings : Abstracts
Research Presentation
Management of municipal waste collection points by residents: current status and aging-related issues in Tsukuba City

Presenter : Suzuki K., Tajima R., Tasaki T.
Name of Society : the 6th 3RINCs (The 3R International Scientific Conference on Material Cycles and Waste Management) (2020)
Name of Proceedings : Abstracts
Research Lecture
New Era of Waste Management: Population Change and Aging

Presenter : Tasaki T., Ishigaki T., Inaba R., Tajima R., Kawai K.
Name of Society : The 6th 3R International Scientific Conference on Material Cycles and Waste Management (3RINCs) (2020)
Name of Proceedings : Special Session 5
Research Presentation
Generation of and solutions to canal waste: a case study in Bangkok

Presenter : Tajima R., Kubota R., Janamporn S.
Name of Society : the 30th annual conference of Japan Society of Material Cycles and Waste Management (2019)
Name of Proceedings : Abstracts, 511-512
Research Presentation
Waste Management in the Era of Population Decrease and Aging

Presenter : Tasaki T., Inaba R., Kawai K., Kojima E., Tajima R., Suzuki K., Kubota R.
Name of Society : Sardinia 2019, 17th International waste management and landfill symposium (2019)
Name of Proceedings : Proceedings
Research Presentation
Community Governance in Decontamination Programs after the Fukushima Nuclear Accident: Two Case Studies from the Naka-dori Region, Fukushima, Japan

Presenter : Tsuji T., Nakamura S., Tajima R., Oba M.
Name of Society : 7th International Symposium on Environmental Sociology in East Asia (2019)
Name of Proceedings : Abstracts, 33-34
Research Presentation
Policy Networks in the Local Community before and after the Fukushima Nuclear Accident: A Case Study of Miharu Town

Presenter : Tsuji T., Nakamura S., Tajima R., Ooba M.
Name of Society : The 4th World Social Science Forum (2018)
Name of Proceedings : -
Research Presentation
Investigation on solid debris in urban drainage system in tropical Asian cities

Presenter : Ishigaki T., Thaweesub R., Kubota R., Tajima R., Lieu P.K., Chiemchaisri C.
Name of Society : The 29th Annual Conference of Japan Society of Material Cycles and Waste Management (2018)
Name of Proceedings : -
Research Presentation
Factors Related to Waste Disposal Behavior of Residents Near Canals

Presenter : Tajima R., Kubota R., Tin H. C., Jarusombat S., Janamporn S., Ishigaki T.
Name of Society : ISWA World Congress 2018 (2018)
Name of Proceedings : Abstracts
Research Presentation
Measurement of Importance of 11 Sustainability Criteria based on Indirect Stated Preference Approach and Comparison among Four Asian Countries

Presenter : Tasaki T., Kameyama Y., Tajima R.
Name of Society : The 9th biennial conference of the International Society for Industrial Ecology (ISIE) and the 25th annual conference of the International Symposium on Sustainable Systems and Technology (ISSST) (2017)
Name of Proceedings : Program
Research Lecture
Resilient Waste Management against Frequent Flood in Middle Scale Cities in Southeast Asia

Presenter : Yamada M., Ishigaki T., Kawai K., Tajima R., Kubota R., Towprayoon S., Lieu P. K.
Name of Society : 2nd International Forum on Sustainable Future in Asia, 2nd NIES International Forum (2017)
Name of Proceedings : Program Book, 36
Research Lecture
Conceptualising disaster resilient waste management

Presenter : Tajima R., Ishigaki T., Kawai K., Yamada M.
Name of Society : 2nd International Forum on Sustainable Future in Asia, 2nd NIES International Forum (2017)
Name of Proceedings : Program book, 66
Research Presentation
Attitude on post disaster environmental management

Presenter : Tajima R., Tasaki T.
Name of Society : 36th annual conference f the International Association for Impact Assessment (2016)
Name of Proceedings : -
Research Presentation
Capacity Development for Flood Waste Management in Vulnerable Asian Cities

Presenter : Ishigaki T., Tajima R., Kawai K., Kubota R., Lieu, P.K., Yamada M., Wangyao K., Towprayoon S., Chiemchaisri C.
Name of Society : 第26回廃棄物資源循環学会研究発表会 (2015)
Name of Proceedings : Abstracts, 564-565
Research Presentation
AN EMPRICAL ANALYSIS OF STRATEGIC MANAGEMENT FOR ESTABLISHING A LOCAL CIRCULAR SOCIETY: HISTORICAL ANALYSIS BASED ON RATIONAL, PRACTICAL, NEGOTIATORY, AND INSTITUTIONAL ASPECTS

Presenter : Tasaki T., Inaba R., Kojima E., Kawai K., Tajima R., Tochio K., Yoshida H., Ozawa H.E.
Name of Society : 8th Biennial Conference of the International Society for Industrial Ecology (2015)
Name of Proceedings : Book of abstracts, 611-612
Research Presentation
Public involvement in disaster-related EAs

Presenter : Tajima R., Tasaki T., Osako M.
Name of Society : 35th annual conference of the International Association for Impact Assessment (2015)
Name of Proceedings : Program, 32
Research Presentation
Design and Formulation of a Local Circular Society: Cases of Biomass Recycling and its Strategic Aspects

Presenter : Tasaki T., Inaba R., Kojima E., Kawai K., Tajima R., Tochio K., Yoshida H., Ozawa H.E.
Name of Society : EcoDesign 2015 International Symposium (2015)
Name of Proceedings : Proceedings, 91-94
Research Presentation
Capacity building for local administration officers on flood waste management

Presenter : Tajima R.
Name of Society : 15th international waste management and landfill symposium (2015)
Name of Proceedings : -
Research Presentation
Nexus Approach and Post-one-size-fits-all Approach for Sustainable Development Goals (SDGs)

Presenter : Tasaki T., Kameyama Y., Tajima R., Kanie N.
Name of Society : Nexus 2014: Water, Food, Climate and Energy Conference (2014)
Name of Proceedings : Abstract Book, 74-75
Research Presentation
Structuralizing the
emergency support functions for disaster waste management in Japan

Presenter : Tajima R., Hirayama N., Osako M.
Name of Society : The 5th Conference of the International Society for Integrated Disaster Risk Management (IDRIM 2014) (2014)
Name of Proceedings : Abstracts, 76
Research Presentation
Impact of ageing on household waste - A case study in Morinosato, Japan

Presenter : Tajima R., Sato M., Matsukami H., Jimbo Y., Ju M. , Kojima E.
Name of Society : 17th Korea-Japan Joint International Session, 2013 Spring Conference of the Korea Society of Waste Management (2013)
Name of Proceedings : Abstracts, 96-98
Research Presentation
Pre-disaster planning for disaster waste management in practice

Presenter : Tajima R.
Name of Society : 9th international symposium on Social Management Systems (2013)
Name of Proceedings : Abstracts, 28
Research Presentation
EIA for small scale development is Japanese waste management sector

Presenter : Tajima R.
Name of Society : 3rd Japan-Korea-China Tripartite EIA & SEA Conference 2013 (2013)
Name of Proceedings : Abstracts, 36
Research Presentation
A Review of Sustainability Assessment: What are the challenges?

Presenter : Tasaki T., Tajima R.
Name of Society : 10th International Conference on EcoBalance (2012)
Name of Proceedings : Proceedings

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Evaluating the effectiveness of a carbon footprint calculator on environmental citizenship and policy support: Insights from randomised controlled trials and user segmentation analysis in the context of the 1.5-degree target

Presenter : Koide R., Hata S., Tajima R., Yoko H., Lettenmeier M., Nansai K.
Name of Society : SCORAI Europe Conference 2025 (2025)
Name of Proceedings : Abstracts
Disaster waste governance in Japan: actors and institutions

Presenter : Tajima R., Tsuji T., Suzuki K., Muhamad A.
Name of Society : The 6th Symposium of the International Waste Working Group Asian Regional Branch (2025)
Name of Proceedings : Abstracts, 79
GIS-Based Documentation of River Waste Facilities in Jakarta: Towards Optimization of the Transportation System

Presenter : Muhamad A., Tajima R.
Name of Society : The 35th Annual Conference of Japan Society of Material Cycles and Waste Management (2024)
Name of Proceedings : Abstracts, 35(B2-6-O):113-114
From Rivers to Seas: Current State and Challenges of River Waste Management in Jakarta, Indonesia

Presenter : Muhamad A., Tajima R.
Name of Society : The 5th Sustainability and Resilience of Coastal Management 2024 (2024)
Name of Proceedings : Abstracts, 5(1):54
Waste Flow Analysis in Riverside Community: A Case Study of Kampung Melayu Subdistrict, Jakarta, Indonesia

Presenter : Muhamad A., Tajima R.
Name of Society : The 34th Annual Conference of Japan Society of Material Cycles and Waste Management (2023)
Name of Proceedings : Abstracts, 34(A2-4-O):27-28
How long ahead of time in the future are people considering? Future horizon for sustainable society

Presenter : Tasaki T., Yokoo H., Tajima R., Yamaguchi R.
Name of Society : 2023 SCORAI-ERSCP-WUR Conference (2023)
Name of Proceedings : Book of abstract, 416
Factors that improve elderly’s access to external help for disaster waste clean-up

Presenter : Suzuki K., Tajima R., Tsuji.t
Name of Society : 3RINCs 2023 The 3R International Scientific Conference on Material Cycles and Waste Management (2023)
Name of Proceedings : Abstracts
Flood Waste Governance towards Community Resilience in Jakarta, Indonesia - A Preliminary Study

Presenter : MUHAMAD A., Tajima R.
Name of Society : The 3R International Scientific Conference on Material Cycles and Waste Management (3RINCs) (2023)
Name of Proceedings : Abstracts, 1:144-145
Characteristics of the institutional framework for disaster waste governance in Japan

Presenter : Tajima R.
Name of Society : 13th International Conference on Sustainable Waste Management & Circular Economy & IPLA Global Forum 2023 (2023)
Name of Proceedings : -
COVID-19 impact on waste management behavior: a review

Presenter : Tajima R.
Name of Society : 8th International Conference on Sustainable Energy and Environment (2022)
Name of Proceedings : Abstracts, 170
Implementation of method for systematic understanding of disaster waste management flow

Presenter : Masuda H., Asari M., Tajima R.
Name of Society : 3RINCs2021 (2021)
Name of Proceedings : Abstracts
Development of a process to invoke community actions to reduce canal waste: a case in Bangkok

Presenter : Tajima R., Kubota R., Janamporn S., Jarusombat S., Palakhamarn T.
Name of Society : 3RINCs2021 (2021)
Name of Proceedings : Abstracts
A survey and experiment on Japanese perceptions and attitudes to time and the future

Presenter : Tasaki T., Yokoo H., Kameyama Y., Matsuhashi K., Shiogama H., Tajima R., Yamaguchi R.
Name of Society : EcoDesign 2021 (2021)
Name of Proceedings : Proceedings
Comprehensive structure of a disaster waste management project based on the Japanese experience

Presenter : Tajima R.
Name of Society : 6th 3RINCs (2020)
Name of Proceedings : Abstracts
Management of municipal waste collection points by residents: current status and aging-related issues in Tsukuba City

Presenter : Suzuki K., Tajima R., Tasaki T.
Name of Society : the 6th 3RINCs (The 3R International Scientific Conference on Material Cycles and Waste Management) (2020)
Name of Proceedings : Abstracts
Waste Management in the Era of Population Decrease and Aging

Presenter : Tasaki T., Inaba R., Kawai K., Kojima E., Tajima R., Suzuki K., Kubota R.
Name of Society : Sardinia 2019, 17th International waste management and landfill symposium (2019)
Name of Proceedings : Proceedings
Community Governance in Decontamination Programs after the Fukushima Nuclear Accident: Two Case Studies from the Naka-dori Region, Fukushima, Japan

Presenter : Tsuji T., Nakamura S., Tajima R., Oba M.
Name of Society : 7th International Symposium on Environmental Sociology in East Asia (2019)
Name of Proceedings : Abstracts, 33-34
Investigation on solid debris in urban drainage system in tropical Asian cities

Presenter : Ishigaki T., Thaweesub R., Kubota R., Tajima R., Lieu P.K., Chiemchaisri C.
Name of Society : The 29th Annual Conference of Japan Society of Material Cycles and Waste Management (2018)
Name of Proceedings : -
Factors Related to Waste Disposal Behavior of Residents Near Canals

Presenter : Tajima R., Kubota R., Tin H. C., Jarusombat S., Janamporn S., Ishigaki T.
Name of Society : ISWA World Congress 2018 (2018)
Name of Proceedings : Abstracts
Measurement of Importance of 11 Sustainability Criteria based on Indirect Stated Preference Approach and Comparison among Four Asian Countries

Presenter : Tasaki T., Kameyama Y., Tajima R.
Name of Society : The 9th biennial conference of the International Society for Industrial Ecology (ISIE) and the 25th annual conference of the International Symposium on Sustainable Systems and Technology (ISSST) (2017)
Name of Proceedings : Program
Attitude on post disaster environmental management

Presenter : Tajima R., Tasaki T.
Name of Society : 36th annual conference f the International Association for Impact Assessment (2016)
Name of Proceedings : -
Capacity Development for Flood Waste Management in Vulnerable Asian Cities

Presenter : Ishigaki T., Tajima R., Kawai K., Kubota R., Lieu, P.K., Yamada M., Wangyao K., Towprayoon S., Chiemchaisri C.
Name of Society : 第26回廃棄物資源循環学会研究発表会 (2015)
Name of Proceedings : Abstracts, 564-565
AN EMPRICAL ANALYSIS OF STRATEGIC MANAGEMENT FOR ESTABLISHING A LOCAL CIRCULAR SOCIETY: HISTORICAL ANALYSIS BASED ON RATIONAL, PRACTICAL, NEGOTIATORY, AND INSTITUTIONAL ASPECTS

Presenter : Tasaki T., Inaba R., Kojima E., Kawai K., Tajima R., Tochio K., Yoshida H., Ozawa H.E.
Name of Society : 8th Biennial Conference of the International Society for Industrial Ecology (2015)
Name of Proceedings : Book of abstracts, 611-612
Public involvement in disaster-related EAs

Presenter : Tajima R., Tasaki T., Osako M.
Name of Society : 35th annual conference of the International Association for Impact Assessment (2015)
Name of Proceedings : Program, 32
Design and Formulation of a Local Circular Society: Cases of Biomass Recycling and its Strategic Aspects

Presenter : Tasaki T., Inaba R., Kojima E., Kawai K., Tajima R., Tochio K., Yoshida H., Ozawa H.E.
Name of Society : EcoDesign 2015 International Symposium (2015)
Name of Proceedings : Proceedings, 91-94
Capacity building for local administration officers on flood waste management

Presenter : Tajima R.
Name of Society : 15th international waste management and landfill symposium (2015)
Name of Proceedings : -
Structuralizing the
emergency support functions for disaster waste management in Japan

Presenter : Tajima R., Hirayama N., Osako M.
Name of Society : The 5th Conference of the International Society for Integrated Disaster Risk Management (IDRIM 2014) (2014)
Name of Proceedings : Abstracts, 76
Pre-disaster planning for disaster waste management in practice

Presenter : Tajima R.
Name of Society : 9th international symposium on Social Management Systems (2013)
Name of Proceedings : Abstracts, 28
EIA for small scale development is Japanese waste management sector

Presenter : Tajima R.
Name of Society : 3rd Japan-Korea-China Tripartite EIA & SEA Conference 2013 (2013)
Name of Proceedings : Abstracts, 36
Dynamics of River Waste in Jakarta: Quantity and Environmental Influences

Presenter : Muhamad A., Tajima R.
Name of Society : The 10th 3R International Scientific Conference on Material Cycles and Waste Management (2024)
Name of Proceedings : Abstracts, 10
Challenges and Key Factors in River and Flood Waste Governance: A case study of Jakarta City, Indonesia

Presenter : Muhamad A., Tajima R.
Name of Society : The 39th International Solid Waste Association (ISWA) World Congress 2023 (2023)
Name of Proceedings : -
Generation of and solutions to canal waste: a case study in Bangkok

Presenter : Tajima R., Kubota R., Janamporn S.
Name of Society : the 30th annual conference of Japan Society of Material Cycles and Waste Management (2019)
Name of Proceedings : Abstracts, 511-512
Policy Networks in the Local Community before and after the Fukushima Nuclear Accident: A Case Study of Miharu Town

Presenter : Tsuji T., Nakamura S., Tajima R., Ooba M.
Name of Society : The 4th World Social Science Forum (2018)
Name of Proceedings : -
Nexus Approach and Post-one-size-fits-all Approach for Sustainable Development Goals (SDGs)

Presenter : Tasaki T., Kameyama Y., Tajima R., Kanie N.
Name of Society : Nexus 2014: Water, Food, Climate and Energy Conference (2014)
Name of Proceedings : Abstract Book, 74-75
Impact of ageing on household waste - A case study in Morinosato, Japan

Presenter : Tajima R., Sato M., Matsukami H., Jimbo Y., Ju M. , Kojima E.
Name of Society : 17th Korea-Japan Joint International Session, 2013 Spring Conference of the Korea Society of Waste Management (2013)
Name of Proceedings : Abstracts, 96-98
A Review of Sustainability Assessment: What are the challenges?

Presenter : Tasaki T., Tajima R.
Name of Society : 10th International Conference on EcoBalance (2012)
Name of Proceedings : Proceedings

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Temporary Storage Sites for Disaster Waste Management

Presenter : Tajima R.
Name of Society : Mentoring Session for Makati city Disaster Waste Contingency Planning (2021)
Name of Proceedings : -
Preparing Temporary Storage Site (TSS) before a disaster

Presenter : Tajima R., Tsukiji M.
Name of Society : 3RINCs2021 (2021)
Name of Proceedings : -
Resilient Waste Management against Frequent Flood in Middle Scale Cities in Southeast Asia

Presenter : Yamada M., Ishigaki T., Kawai K., Tajima R., Kubota R., Towprayoon S., Lieu P. K.
Name of Society : 2nd International Forum on Sustainable Future in Asia, 2nd NIES International Forum (2017)
Name of Proceedings : Program Book, 36
Conceptualising disaster resilient waste management

Presenter : Tajima R., Ishigaki T., Kawai K., Yamada M.
Name of Society : 2nd International Forum on Sustainable Future in Asia, 2nd NIES International Forum (2017)
Name of Proceedings : Program book, 66
New Era of Waste Management: Population Change and Aging

Presenter : Tasaki T., Ishigaki T., Inaba R., Tajima R., Kawai K.
Name of Society : The 6th 3R International Scientific Conference on Material Cycles and Waste Management (3RINCs) (2020)
Name of Proceedings : Special Session 5

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TAJIMA Ryo

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