In order to investigate the environmental remediation of non-woven ecological base in the pond culture of Litopenaeus vannamei, the experiment set 3 kinds of density treatments of non-woven ecological bases, which included 900 m2·hm-2 (group Ⅰ) , 1 200 m2·hm-2 (group Ⅱ) and 1 500 m2·hm-2 (group Ⅲ) , the treatment with no ecological basis was as control (CK).The culture mode was mainly for the cultivation of prawn, intercropping with the common carp, silver carp, bighead carp and grass carp.The water quality and sediment indicators of the pond were monitored monthly, which included 13 water quality indicators such as ammonia nitrogen, permanganate index (CODMn) , active phosphate, copper, nitrate nitrogen, zinc, suspended solids, nitrite nitrogen, salinity, total nitrogen, total alkalinity, total phosphorus, total hardness, etc, and 6 sediment indicators such as sulfide, copper, zinc, organic carbon, total nitrogen and total phosphorus.The results showed that it was difficult to judge the environment of each group according to the difference of single indicators.According to the comprehensive analysis of 19 indicators by VIKOR method, the environment of the four treatment ponds from good to bad was I, CK, Ⅱ, Ⅲ.Therefore, the reasonable density of the non-woven ecological base was 900 m2·hm-2, in the pond of the prawn culture.%为探讨无纺布生态基在凡纳滨对虾池塘养殖环境中的修复作用, 试验设置900 m2·hm-2 (Ⅰ组) 、1 200 m2·hm-2 (Ⅱ组) 和1 500 m2·hm-2 (Ⅲ组) 3个无纺布生态基的密度处理, 以无生态基处理为对照 (CK) , 养殖模式为主养凡纳滨对虾, 套养鲤鱼、鲢、鳙和草鱼, 按月监测池塘氨氮、高锰酸盐指数 (CODMn) 、活性磷酸盐、铜、硝酸盐氮、锌、悬浮物、亚硝酸盐氮、盐度、总氮、总碱度、总磷、总硬度等13个水质指标, 以及硫化物、铜、锌、有机碳、总氮和总磷等6个沉积物指标.结果表明, 根据单一指标差异很难判断各组池塘环境优劣;通过VIKOR方法对19个指标的监测数据进行综合比较分析, 4种处理池塘环境优劣排序为Ⅰ组、CK、Ⅱ组、Ⅲ组.因此, 在凡纳滨对虾养殖池塘中, 无纺布生态基的合理设置密度为900 m2·hm-2.
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