Abstract:

To improve the water quality at the bottom layer of pond. In this paper, we did an experiment on the effect of a new farming pattern named partitioned pond on water quality improvement. The results showed that pH value ranges from 7.0 to 7.6, the maximum was at 4:00 pm. The average of pH value in area ponds and no shellfish ponds were slightly higher than unpartitioned pond and shellfish pond, respectively. As for dissolved oxygen, fluctuations in the 6 mg/L was at 9:00 am,10 mg/L fluctuated at 4:00 pm, there exists significant diurnal variation, but there was no significant differences in area ponds and unpartitioned pond. The water temperature increased in sequence of six periods, water temperature measured at 9:00 was lower than the water temperature of 16:00, but there was no significant differences in area ponds and unpartitioned pond. The transparency of the water was the highest in case of partitioned pond and pond which had shellfish. Pond water quality was good. This new partition pond culture model was worthy of further research and extension.