【Abstract】
As the number of natural disasters such as floods and landslides increases with the progress of climate change, it is becoming more and more important to develop infrastructure for disaster prevention and mitigation. Against this backdrop, green infrastructure, which utilize the functions of nature to cope with such disasters, has been attracting attention. Green infrastructure not only has a smaller impact on ecosystems and landscapes than artificial infrastructure (gray infrastructure) such as dams, but is often less expensive to build and to maintain in the future. I study the cost-effectiveness of the so-called “ecosystem-based disaster risk reduction: Eco-DRR” that utilizes green infrastructure from an economic perspective.

【Future prospects】
My research focuses on flood control using forests and retarding basin against river flooding caused by heavy rainfall due to climate change. I plan to expand my research to include green infrastructure against a wider range of natural disasters.

• Comparing green infrastructure as ecosystem-based disaster risk reduction with gray infrastructure in terms of costs and benefits under uncertainty: A theoretical approach