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http://dx.doi.org/10.5338/KJEA.2003.22.2.166

A Program of Water Quality Management for Agricultural Reservoirs by Trophic State  

Lee, Kwang-Sik (Rural Research Institute, Korea Agricultural & Rural Infrastructure Corporation)
Yoon, Kyung-Sup (Rural Research Institute, Korea Agricultural & Rural Infrastructure Corporation)
Kim, Ho-Il (Rural Research Institute, Korea Agricultural & Rural Infrastructure Corporation)
Kim, Hyung-Joong (Rural Research Institute, Korea Agricultural & Rural Infrastructure Corporation)
Publication Information
Korean Journal of Environmental Agriculture / v.22, no.2, 2003 , pp. 166-171 More about this Journal
Abstract
A total of 498 agricultural reservoirs ranging from $164{\times}10^3\;m^3$ to $253{\times}10^6\;m^3$ in storage volume were investigated from 1990 to 2001 with respect to Chl-${\alpha}$, COD concentration and pollutant loading of BOD, TN, and TP. The lakes and reservoirs could be classified to 4 types using the relationships between the ratio of storage volume per water surface area(ST/WS) and Chl-${\alpha}$ concentration. It is recommended that the improvement of polluted lakes should be performed in the order of integrated consolidation type ${\rightarrow}$ watershed consolidation type ${\rightarrow}$ in-lake consolidation type ${\rightarrow}$ Management type and reservoir should be constructed to be over $5{\sim}6\;m$ in depth(ST/WS ratio) for preventing the eutrophication of agricultural reservoirs. We propose that water quality criteria for agricultural water is changed from less than 8 mg/L to less than 6 mg/L for safety value, $6{\sim}10\;mg/L$ for concern value, and more than 10 mg/L for countermeasure value in COD concentration, respectively.
Keywords
classification; reservoir type; ST/WS ratio; improvement order; water quality criteria;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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