Landscape and anthropogenic factors affecting spatial patterns of water quality trends in a large river basin, South Korea

• Published in: Journal of hydrology (Amsterdam) Vol. 564; pp. 26 - 40
• Main Authors: Mainali, Janardan, Chang, Heejun
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2018
• Subjects: agricultural land; autocorrelation; basins; chemical oxygen demand; environmental health; GIS; Han River; humans; hydrology; land cover; Landscape factors; landscapes; metropolitan areas; nitrogen content; phosphorus; regression analysis; Scale; soil; South Korea; Spatial filter; subwatersheds; summer; topography; total suspended solids; Water quality; winter; South Korea; GIS; Landscape factors; Scale; Spatial filter; Water quality; Han River

•We analyzed water quality trends in the Han River basin for 20+ years.•Water quality generally improved in the basin with spatially varying trends.•Topography, land use, soil, and population explained the majority of the trends.•Eigenvector spatial filters removed residual spatial autocorrelation e...