Река Нактонган: История, экология и значение для Южной Кореи.

Longest river in South Korea
As a barrier to movement, the Nakdong River gained sudden prominence during the Korean War. The southern length of the river formed the western portion of the Pusan Perimeter, which the UN forces fought to maintain during the autumn of 1950. The bridge at Waegwan was blown up on August 3, 1950, in an effort to prevent North Korean forces from advancing on Daegu. A large number of South Korean refugees were killed in the explosion. Although some North Korean forces did cross the Nakdong River in places, for the most part the river marked their furthest advance.

The Nakdong River valley includes numerous floodplain wetlands, the most well known of which are the Junamjeosuji Reservoir near Changwon and Upo Wetland in Changnyeong County. These wetlands, while significantly degraded and overdeveloped, provide habitat to a significant number of rare and threatened species, most especially birds (such as the Baikal teal and White naped crane), fish and plants. Despite being home to the bustling Port of Busan, the Nakdonggang estuary is internationally important for waterbirds, despite recent ecologically destructive developments including reclamation for housing and industry (e. g. the Busan New Port), the ongoing construction of a major bridge (the Miyeonji Bridge) and most recently the threatened construction of the Korean Grand Canal project. The Nakdonggang and its tributaries serve as a major source of drinking water for the inhabitants of the river basin and others nearby. However, water pollution from domestic and agricultural wastewater remains a serious concern.

In 1991, there were two incidents where phenol was leaked into the river from Doosan Electronics. There were two leaks, the first thirty tons on March 14, 1991 and the second 1.3 tons on April 22. The phenol ended up at a water processing facility used for drinking water in Daegu and began to smell after converting to chlorophenol when the water was sanitized with chlorine.

Although all but the southernmost reaches of the Nakdonggang River have ceased to serve as a major commercial waterway, the river continues to feed those dwelling near it, both directly through fishing and indirectly through irrigation. Substantial amounts of snails and catfish are taken from the waters and used in local cuisine. Near Andong, a series of massive hydroelectric dams have been constructed, creating a small chain of artificial lakes of which Andong Lake is the largest. These lakes also support a substantial recreational industry. Bass fishing is especially popular, since the lakes have been artificially stocked with bass. In the early 2010s, the Nakdonggang River was to be part of President Lee Myung bak's canal project, the Grand Korean Waterway. The project would link the Nakdong with the Han River to the north, creating a shipping canal spanning length of the country, from Seoul to Busan. Encountering considerable controversy nationwide as well as from residents along the Nakdonggang, the waterway project was scrapped by the end of Lee's presidency.

The Nakdong River Cultural Center holds bicycle festivals that everyone can enjoy the healthy leisure culture of local residents. It is composed of flat courses about 20 km in the vicinity of Eulsukdo and Nakdonggang River Cultural Center.