The objective of the project is to elucidate the role of the Amur River in primary productivity in the Sea of Okhotsk and Oyashio region and then evaluate possible human impacts such as land surface disturbances in the Amur River basin on the marine ecosystem of the ocean. In this study, we attempt to answer 1) how dissolved iron is transported from the Amur River basin to the Sea of Okhotsk and Oyashio region, 2) to what extent the supply of dissolved iron regulates the primary production in these open waters, 3) how the land surface disturbances affect the material circulation in the Amur–Okhotsk system, 4) how human activity will impact the system in the future, and 5) how we can conserve this transboundary system. By answering these five questions, we will be able to propose a new global environmental concept, the“giant” fish-breeding forest (GFBF), in which there arephysical and humanistic interactions between upstream and downstream and determine a way of conserving the system in a cooperative effort among China, Russia, Mongolia and Japan.

Joint Declaration is approved in the International Symposium on “Russo-Chino-Japanese cooperation toward the environmental conservation of the Sea of Okhotsk” (Hokkaido Univ.) >>> The Program HP