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主要研究了池塘养殖节水循环系统一、二、三级湿地净化池和排水渠的水质净化效果,养殖池塘设置植物漂浮带和应用复合微生态制剂对池塘养殖水体的水质进行净化。结果表明:池塘养殖节水循环系统能显著降低水体COD、TN、TP、NH4+-N,提高水体DO以及水体透明度,池塘节水率达30.96%,表明该循环系统净化水质效果显著。三级净化池和排水渠净化与池塘生态调控相结合,实现高效生态节水养殖,其中净化与养殖占地面积比为1∶10。
Mainly studied the water quality purification effect of the first, second and third wetland purifying ponds and drains in the pond aquaculture water-saving circulatory system, the plant floating zone in the aquaculture ponds and the application of compound probiotics to purify the water quality of pond aquaculture water. The results showed that the pond water-saving and circulatory system could significantly reduce COD, TN, TP, NH4 + -N in water bodies and increase the DO and water transparency of ponds. The water-saving rate of ponds was 30.96%, indicating that the recirculation system had a significant effect on water purification. Three purification ponds and drains purification and pond ecological regulation combined to achieve efficient ecological water-saving farming, of which purification and breeding area ratio of 1:10.