Analysis on land-ocean linkage system

Abstract

Global warming has been reported to have a number of effects on material dynamics, including an increase in ocean surface water temperature, changes in land vegetation, the occurrence of linear precipitation belt, the occurrence of slope collapses due to heavy rain, and increased soil erosion. In addition, human activities have caused changes in the land surface environment throughout Japan, including an increase in abandoned farmland and forest management land due to the declining birthrate and aging population. Therefore, in order to evaluate the sustainability and resilience of coastal oceans, it is important to combine land and sea and evaluate them as a system including ecosystems from the perspective of material dynamics. In this presentation, the basic concept of land-sea coupled systems and observation examples from survey areas in the Noto Peninsula and eastern Hokkaido will be introduced, and the importance of research that connects land and sea and evaluates them as a single watershed will be mentioned.