| Project/Area Number |
23KF0215
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Multi-year Fund |
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| Section | 外国 |
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| Review Section |
Basic Section 22060:Environmental systems for civil engineering-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
福士 謙介 東京大学, 未来ビジョン研究センター, 教授 (30282114)
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| Co-Investigator(Kenkyū-buntansha) |
WADUMESTRIGE DONA CHETHIKA 東京大学, 未来ビジョン研究センター, 外国人特別研究員
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| Project Period (FY) |
2023-11-15 – 2026-03-31
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| Project Status |
Granted (Fiscal Year 2023)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2025: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2024: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2023: ¥500,000 (Direct Cost: ¥500,000)
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| Keywords | water pollution / urban / agriculture / watershed management / wetlands |
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| Outline of Research at the Start |
Agricultural fertilizer, mainly from high chemical fertilizer usage, significantly contributes to nitrogen pollution in urban water bodies, especially in Asian cities. Effective watershed management is vital for addressing the complexity of urban pollution. Studying how these practices control agricultural nitrogen pollution in urban water bodies is crucial. This research aims to create a watershed management-based index to improve water quality in Asian urban water bodies by reducing agriculture nitrogen pollution.
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| Outline of Annual Research Achievements |
The primary aim of this study is to identify suitable watershed management practices for mitigating urban water pollution. This research will investigate the impact of such practices on urban water pollution through two main avenues: the management of pollution sources and the management of urban green spaces. Thus, in order to achieve this study's objectives, two concurrent studies have been devised as follows:
Study 1: Assessing the Feasibility of Wastewater-Based Irrigation for Urban Agriculture in Underserved Settlements as a Decentralized Wastewater Treatment Strategy.
Study 2: Exploring the Role of Wetland Centers in Urban Wetland Conservation in Asian Cities.
Study 1:This investigation aims to evaluate the viability of employing wastewater-based irrigation as a means to address urban water pollution, particularly in underserved settlements - a significant point source of such pollution. The study is structured as a case study within Colombo City, Sri Lanka.
Study 2:Three wetland centers situated in different Asian countries have been chosen as case study locations: the Yatsu-higatha Nature Observation Center in Narashino, Japan; the Sungei Buloh Wetland Park in Singapore; and the Diyasaru Wetland Park in Colombo, Sri Lanka. The roles of these centers in urban wetland conservation will be examined across three dimensions: educational initiatives, recreational and tourism programs, and efforts in biodiversity and ecosystem restoration.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
The initial literature survey for the studies has been completed.
Study areas for the case studies have been selected, and relevant organizations in Japan, Singapore, and Sri Lanka, pertaining to the studies, have been identified. Initial communications with these organizations have commenced.
Questionnaires for interviews and surveys have been developed and received ethical approval from the Research Ethics Committee of the Institute for Future Initiative, The University of Tokyo. An initial field visit was conducted at the Yatsu-higatha Nature Observation Center in Narashino, Japan. Subsequently, a field visit to the Sungei Buloh Wetland Park in Singapore took place from March 26th to March 31st, 2024, during which physical interviews were conducted with the park management.
Abstracts submitted to the 10th World Water Forum in Bali 2024 and the Urban Food System Symposium in Ohio, USA, have been accepted. These abstracts are centered around the themes of wastewater irrigation and urban agriculture.
Collaborated to the “Water for Circular Society” project at the United Nations University - Institute for the Advance Study of Sustainability (UNU-IAS).
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| Strategy for Future Research Activity |
Surveys and interviews will be conducted in both Colombo and Japan as part of the studies on wastewater irrigation and urban wetland conservation.
Data collected from both studies will undergo analysis to comprehend the role of watershed management in mitigating urban water pollution in Asia, including nitrogen pollution.
Findings will be disseminated through publication in scientific peer-reviewed journals and presentations at international conferences.
Scientific publications will primarily rely on secondary data concerning urban water pollution.
Collaborate and assist to the “Water for Circular Society” project at the UNU-IAS.
Policies related to watershed management aimed at mitigating urban water pollution in Asia will be developed based on the results obtained.
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