• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.39 no.1
• /
• pp.25-32
• /
• 2019

The urban river has played an important role in biodiversity by providing various waterside areas in urban areas that are difficult for organisms to live in. The river is also used as a resting place and experience space for citizens. In particular, Yeouido Saetgang is the first ecological park in Korea, and it is located in the heart of downtown Seoul, making it highly valuable for its location and ecological value. However, water quality issues have continuously been raised since the construction project of Yeouido Saetgang river. So it is necessary to investigate the environment state and analyze the causes of the environment deterioration. In this study, the causes of the river stagnation and water quality deterioration in Yeouido Saetgang river were analyzed. For this, river surveys and aerial photo analysis were used to analyze the causes of difficulties in natural water circulation. Also, the results of monitoring water quality showed that the averaged level of BOD and T-P in dry season is III and IV, respectively, while that of BOD and T-P are V~VI in rainy season. In addition, through the drainage analysis of sewer network, small drainages that affect the water quality in Saetgang river was selected and discussed.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.39 no.3
• /
• pp.431-439
• /
• 2019

Although various efforts to increase the usage of the Yeouido Saetgang river have been made after it was established as the first ecological park in 1997, its usage is significantly lower compared to neighboring Yeouido Han river park. In this study, an interview survey of 1,000 visitors to Yeouido Saetgang river park was conducted. The perception and activity patterns among the visitors were examined. The results showed that about 60 percent of all users were neighboring residents who can move by a walk. Most of the visitors spend their time in the river park taking exercises and observing the ecosystem. It is similar to the characteristics of other city parks in Seoul. The perceptions and activity patterns according to the visitor's characteristics were analyzed statistically. Also, the effect level of activity patterns on the perceptions such as satisfaction, attachment, and willingness to participate was analyzed and discussed.