The concentrations of NH3-N, BOD5 and TP in net bag decreased by 15.6%, 28.5% and 7.5% respectively in comparison with control site. Hydrodictyon can be applied to purify source water in winter as ecological-engineering measure.
英
美
- 与对照测点比较;网袋内氨氮、生化需氧量和总磷的浓度分别下降了15.;6%25、28