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http://dx.doi.org/10.15681/KSWE.2019.35.3.248

Suggestion for Trophic State Classification of Korean Lakes  

Kong, Dongsoo (Department of Bioconvergence, Kyonggi University)
Kim, Bomchul (Department of Environmental Science, Kangwon University)
Publication Information
Journal of Korean Society on Water Environment / v.35, no.3, 2019 , pp. 248-256 More about this Journal
Abstract
Most of the lakes in Korea are artificial, and their limnological characteristics are significantly different from those of natural lakes in other countries. In this study, the relationship between trophic state parameters was investigated, based on summer average data of the upper layer, in 81 lakes in Korea, 2013-2017. Compared with trends of foreign natural lakes, chlorophyll a (Chl.a) concentration was slightly lower at the same total phosphorus (TP) concentration, and transparency (Secchi depth, SD) was noticeably lower at the same Chl.a concentration. This is because of excessive allochthonous loading of non-algal material during the monsoon period, and the reduction in phosphorus availability to algal growth, by light limitation and short hydraulic residence time. Considering these characteristics, we suggested site-specific thresholds of trophic state classification for Chl.a, TP and SD, based on annual average data at the upper layer of lakes ($3-10{\mu}g\;L^{-1}$ of Chl.a measured by UNESCO method; $13-33{\mu}g\;L^{-1}$ of TP; 1.6-3.2 m of SD for mesotrophic state class, respectively). The threshold value of TP for each trophic state class, corresponded to the upper value of previously reported range, and that of SD was out of the range. We suggested applying only TP and Chl.a in assessment of trophic state of lakes in Korea, excluding SD.
Keywords
Eutrophication; Phosphorus; Secchi depth; Trophic state classification; Water quality;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 Aizaki, M., Otsuki, A., Fukushima, T., Kawai, T., Hosomi, M., and Muraoka, K. (1981). Application of modified Carlson's trophic state index to Japanese lakes and its relationships to other parameters related to trophic state, Research Report from the National Institute for Environmental Studies, 23, 13-31. [in Japanese].
2 An, K. G. (2000). Monsoon inflow as a major source of in-lake phosphorus, Korean Journal of Limnology, 33(3), 222-229.
3 Carlson, R. E. (1977). A trophic state index for lakes, Limnology and Oceanography, 22(2), 361-369.   DOI
4 Carlson, R. E. (1991). Expanding the trophic state concept to identify non-nutrient limited lakes and reservoirs, Enhancing the States' Lake Management Programs, 59-71.
5 Food and Agriculture Organization of the United Nations (FAO). (1992). The use of saline waters for crop production, FAO Irrigation and Drainage Parer 48, 1-133.
6 Forsberg, C. and Ryding, S. O. (1980). Eutrophication parameters and trophic state indices in 30 Swedish waste-receiving lakes, Archiv fur Hydrobiologie, 89(1/2), 189-207.
7 Japanese Ministry of the Environment (JMOE). (1971). Enforcement regulations, water pollution control law, http://elaws.e-gov.go.jp/search/elawsSearch/elaws_search/lsg0500/detail?lawId=346M50000402002 (accessed on Feb. 2019). [Japanese Literature]
8 Kim, B. and Jung, S. (2007). Turbid storm runoffs in lake Soyang and their environmental effect, Journal of Korean Society Environmental Engineers, 29(11), 1185-1190. [Korean Literature]
9 Kim, B. and Kim, Y. (2004). Phosphorus cycle in a deep reservoir in Asian monsoon area (lake Soyang, Korea) and the modeling with a 2-D hydrodynamic water quality model [CE-QUAL-W2], Korean Journal of Limnology, 37(2), 205-212. [Korean Literature]
10 Kim, B., Ahn, T. S., and Cho, K. S. (1988). A comparative study of the eutrophication in reservoirs of the Han river, Korean Journal of Limnology, 21(3), 151-163. [Korean Literature]
11 Kim, B., Park, J. H., Choe, K., and Hwang, G. (2001). Eutrophication of reservoirs in South Korea, Limnology, 2(3), 223-229.   DOI
12 Kim, H. S. and Hwang, S. J. (2004). Seasonal variation of water quality in a shallow eutrophic reservoir, Korean Journal of Limnology, 37(2), 180-192. [Korean Literature]
13 Lorenzen, C. J. (1967). Determination of chlorophyll and phaeophytin; spectrophotometric equations, Limnology and Oceanography, 12(2), 343-346.   DOI
14 Kong, D. (1997b). Review on trophic state standards of Korean lakes, Joint Seminar of Korea and Japan on Water Quality Preservation and Watershed Management of Streams and Lakes, 251-266. [Korean Literature]
15 Kong, D. (2019). Statistical analysis on water quality characteristics of large lakes in Korea, Journal of Korean Society on Water Environment, 35(2), 165-180. [Korean Literature]   DOI
16 Kwon, Y. H., Seo, J. K., Park, S. W., and Yang, S. Y. (2006). Evaluation of diatom growth potential in midstream and downstream Nakdong river, Algae, 21(2), 229-234. [Korean Literature]   DOI
17 National Institute of Environmental Research (NIER). (2006). A study on the comprehensive assessment methods of water environment - Eutrophication -, NIER, 1-282. [Korean Literature]
18 National Institute of Environmental Research (NIER). (2018). Water environment information system, http://water.nier.go.kr (accessed May. 2018). [Korean Literature]
19 Park, H. K., Lee, M. H., and Ryu, J. K. (1992). Identification of algal growth limiting nutrient in some artificial lakes of Korea by algal growth potential spike test, Journal of Korean Society on Water Environment, 8(3), 159-166. [Korean Literature]
20 Rast, W. and Lee, G. F. (1978). Summary analysis of the North American (US Portion) OECD eutrophication project: Nutrient loading - lake response relationship and trophic state indices, EPA-600/3-78-008, US EPA, Corvallis Environmental Research Laboratory, Corvallis, OR. 1-455.
21 Kong, D. (1997a). Limnological and ecological characteristics of a river-reservoir (Paldang), Korea, Korean Journal of Limnology, 30(Supplement), 524-535.
22 Vollenweider, R. A. and Kerekes, J. (1982). Eutrophication of waters. monitoring, assessment and control, OECD Cooperative Programme on Monitoring of Inland Waters, OECD, 1-154.
23 Sakamoto, M. (1966). Primary production by phytoplankton community in some Japanese lakes and its dependence on lake depth, Archiv fur Hydrobiologie, 62, 1-28.
24 United Nations Educational, Scientific and Cultural Organization (UNESCO). (1966). Determination of photosynthetic pigments in sea-water, UNESCO, Paris, 1-69.
25 US EPA. (1974). The relationships of phosphorus and nitrogen to the trophic state of Northeast and North-Central lakes and reservoirs, National Eutrophication Survey Working Paper no 23, US EPA, 1-28, Appendix A and B.