Nakaumi

Nakaumi is a brackish water lagoon located between the Shimane and Tottori prefectures in Japan. It is the second-largest lake in Japan by surface area, after Lake Biwa. The lagoon is connected to the Sea of Japan through the Sakai Channel and also connects to Lake Shinji to the west. Nakaumi is a significant natural resource, supporting a diverse ecosystem and providing important fishing grounds.

The salinity of Nakaumi varies depending on the season and the amount of freshwater inflow from rivers and saltwater intrusion from the Sea of Japan. The lake bed is largely composed of mud and sand. Several islands are situated within Nakaumi, including Daikon Island, which is known for its cultivated ginseng. The surrounding area is a mix of agricultural land, urban development, and natural wetlands.

Historically, Nakaumi has been important for transportation and trade, with ports located along its shores. Efforts have been made to preserve the environmental quality of the lagoon, including water quality management and habitat conservation. The lagoon is a popular destination for recreational activities such as fishing, boating, and birdwatching. Its ecological significance and economic importance make Nakaumi a vital part of the regional landscape.