Characteristics of Aquatic Environment in Close-to-Nature Onchun Stream - Before and After the Flowing of the Nakdong River

Autor: Jae-Won Jeong, Dong-Min Kwon, In-Jung Hwang, Ki-Won Kwon, Eun-Hee Yoo, Hong-Sik Cheigh, Jae-Hun Bin, Na-Na Yun, Jun-Won Son
Rok vydání: 2007
Předmět:
Zdroj: Journal of the Environmental Sciences. 16:831-838
ISSN: 1225-4517
DOI: 10.5322/jes.2007.16.7.831
Popis: In order to improve the water environment at urban streams in Korea, several river restoration projects have been initiated for past few years. This study evaluates the impact of diverting water application at the riverhead of Onchun stream through the monitoring program for several water quality and ecological parameters. Various water quality parameters and ecological item such as benthic macroinverterates has been investigated between 09/05 and 12/06. Analysis indicates that the application of diverting water from Nakdong river to Onchun stream distinctly improved several water quality parameters such as, PH, BOD, TN, TP and concentrations of heavy metals. Low flow augmentation also improve ecological indicies such as the diversity index of benthic macroinvertebrates. Generally speaking, releasing addition water from head water of Onchun stream improves various water environmental characteristics.
Databáze: OpenAIRE