Fig. 1. Map showing the sampling stations in the upper region of the Yeongcheon Lake.
Fig. 2. Daily fluctuations of air temperature, 7 days precipitation, daylight hours, water level, inflow and outflow reach of the Yeongcheon Lake from the survey period.
Fig. 3. Change of phytoplankton standing crops by survey period andfour sampling stations of the Yeongcheon Lake.
Fig. 4. Change of harmful cyanobacteria standing crops by survey period and five sampling stations of the Yeongcheon Lake.
Fig. 5. Comparison of cyanobacteria decision tree regression formula and the Y-4 cyanobacteria cells
Fig. 6. Changes in the number of Y-4 cyanobacteria cells according to Y-2 TP loading
Table 1. Physical and chemical characteristics of LakeYeongcheon determined during the experimental period. The values indicate mean, standard deviation and range (maximum and minimum).
Table 2. Correlation between the number of harmful Cyanobacteria cells in Yeongcheon Lake and water quality factors.
Table 3. Model formula of harmful cyanobacteria in Y-4 derived from data mining.