Analysis of Relationship Between Water Quality Parameters with Land Use in Yeongsan River Basin

Abstract

The purpose of this study is to provide a base line data to improve the water quality in the Yeongsan River basin. As the major factor that affects the water quality of Yeongsan River is nonpoint pollution source, in order to find a resolve to improve the quality, a study was conducted to identify the correlation between the stream water quality and that of the land use. The study showed that the concentration of the contents in the water from the agricultural land environment was found to be higher as oppose to that found in the content of the water from the forest land. As a result, it can be deducted that agricultural land deteriorates water quality whereas that of the forest land is of much better quality. Therefore, it is highly recommended to take advanced improved care of agricultural land close to a water source to improve the quality of Yeongsan River basin.

Potential Sources of Heavy Metals in Sediments of an Urban‒Agricultural Watershed and Relationship with Land Use Using a Statistical Approach

“…Thus, the problem of environmental pollution has been raised due to the discharge of pollution sources from the industrial and agricultural activities [17,18]. Therefore, many researchers have analyzed the relationship between land use and water quality to evaluate the water pollution level of the Yeongsan River basin [19,20]; however, the effect of land use on sediment pollution has not yet been studied. Sediment pollution in the Yeongsan River basin in South Korea, where various land uses are distributed, is expected to vary depending on land use, and it is very important to understand the relationship between sediment pollution and land use for the efficient management of heavy metal contamination of sediments.…”

Analysis of the Water Quality Characteristics of Urban Streams Using the Flow–Pollutant Loading Relationship and a Load Duration Curve (LDC)

“…In general, pollutants introduced into streams from watersheds can mainly be classified into point pollution sources, which constantly come from specific places, and nonpoint pollution sources, which normally exist over large areas and then discharged into streams along with surface runoff during rainfall. Nonpoint pollution sources are difficult to quantify because their discharge is different depending on topographical conditions, the characteristics of the watershed, land use type, and hydrological conditions [1][2][3][4][5][6]. To address this problem, the Ministry of Environment (ME; Rep. of Korea) implemented the total maximum daily load (TMDL) program on the Nakdong River in 2004.…”