Yong Sik Ok
Korea University
940 Papers
1.6K Citations
Yong Sik Ok is an academic researcher from Korea University. The author has contributed to research in topics: Biochar & Chemistry. The author has an hindex of 102, co-authored 854 publications. Previous affiliations of Yong Sik Ok include University of Queensland & Kangwon National University.
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Papers
Evaluation of SWAT Direct Runoff and Baseflow Component using Web-based K-means Clustering EI Estimation System
Won Seok Jang,Jongpil Moon,Nam-Won Kim,Bernard A. Engel,Dong Sun Yoo,Ik Jae Kim,Yuri Mun,Yong Sik Ok,Kyoung Jae Lim +8 more
- 01 Jan 2010
TL;DR: In this article, a Web-based flow clustering EI estimation system using K-means clustering algorithm was developed and used for the SWAT hydrology evaluation, and the result obtained in this study indicates that the SWAT water component should be calibrated until all four positive EI values for each flow group of direct runoff and baseflow are obtained for better accuracy both in direct runoff, baseflow and base flow.
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Relationship Between Chemical Properties of Forest soil Solutions and Element concentrations in Needles of Pinus thunbergii in Industral Complexes
Wi-Young Lee,Jae E. Yang,Chang-Jin Park,Yong-Seon Zhang,Yong Sik Ok +4 more
- 01 Jan 2004
TL;DR: In this article, the relationship between element concentrations in the needles of Pinus thunbergii and chemical properties of forest soil solutions in the industrial complexes was investigated to find the possible limiting factor(s) causing the forest decline.
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Future Directions and Perspectives on Soil Environmental Researches
Jae E. Yang,Yong Sik Ok,Doug-Young Chung +2 more
- 31 Dec 2011
TL;DR: In this paper, the future directions and perspectives on the soil environmental researches in the 21st century are reviewed and a review of the current state of the art in soil environmental research is presented.
Characteristics of Soil Solution Extracted from Forest Soils Adjacent to Heavy Industrial Complexes
Wi-Young Lee,Jae E. Yang,Chang-Jin Park,Yong-Seon Zhang,Yong Sik Ok +4 more
- 01 Jan 2004
TL;DR: In this article, forest soils from Onsan and Ulsan regions were collected from various sites adjacent to the heavy industrial complexes and soil solutions were extracted to characterize the chemical properties and to find factors affecting forest decline by acid deposition.
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