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蚌、鱼混养在池塘养殖循环经济模式中的净化效能
引用本文:陈家长,何尧平,孟顺龙,胡庚东,瞿建宏,范立民. 蚌、鱼混养在池塘养殖循环经济模式中的净化效能[J]. 生态与农村环境学报, 2007, 23(2): 41-46
作者姓名:陈家长  何尧平  孟顺龙  胡庚东  瞿建宏  范立民
作者单位:中国水产科学研究院,淡水渔业研究中心/内陆渔业生态环境与资源重点开放实验室,江苏,无锡,214081;常州水产技术推广站,江苏,常州,213000
基金项目:江苏省农业三项工程项目 , 中国水产科学院科研项目
摘    要:以TP、TN、PO3-4-P、NO-3-N、NO-2-N、NH 4-N、CODMn、Chla等为主要水质指标研究了在池塘养殖循环经济模式中蚌、鱼混养对主养区养殖废水的净化效能.结果表明:在7月30日到12月2日的5次测定中,除Chla外,其他指标的去除率表现为先升高后降低的趋势.其中NH 4-N在各测定时间的去除率在25.58%~50.82%之间变化,平均去除率为38.05%,8月28日去除率最大,12月2日去除率最小;NO-2-N、NO-3-N、PO3-4-P、TN、TP和CODMn去除率分别在16.95%~45.45%、25.23%~48.48%、18.37%~52.43%、19.47%~49.39%、12.24%~50.00%和31.88%~49.63%之间,平均去除率分别为26.93%、34.75%、36.50%、29.66%、32.49%和41.21%,且均在9月29日去除率达到最大,12月2日降低为最小.蚌、鱼混养对Chla的去除效果明显,平均去除率达83.49%.各测定时间的出水水质综合营养状态指数均明显低于进水.认为蚌、鱼混养对主养区养殖废水具有很好的净化效能.

关 键 词:三角帆蚌  循环经济模式  混养区  净化效能
文章编号:1673-4831(2007)02-0041-06
修稿时间:2006-12-02

Purification Effect of Polyculture of Fish-Mussel in Pond, A Mode of Circular Economy
CHEN Jia-zhang,HE Yao-ping,MENG Shun-long,HU Geng-dong,QU Jian-hong,FAN Li-min. Purification Effect of Polyculture of Fish-Mussel in Pond, A Mode of Circular Economy[J]. Journal of Ecology and Rural Environment, 2007, 23(2): 41-46
Authors:CHEN Jia-zhang  HE Yao-ping  MENG Shun-long  HU Geng-dong  QU Jian-hong  FAN Li-min
Affiliation:1. Freshwater Fisheries Research Center/ Key Laboratory of Inland Fishery Eco-environment and Resource, Chinese Academy of Fishery Sciences, Wuxi 214081, China; 2. Changzhou Fisheries Technical Extension Station,Changzhou 213000,China
Abstract:Samples were collected once a month from July 30th to December 2nd from the influent and effluent waters of an aquicultural farm,dominated with fish-mussel polyculture,a mode of circular economy in pond acquiculture.Total phosphorus(TP),total nitrogen(TN),orthophosphate phosphorus(PO3-4-P),nitrate nitrogen(NO-3-N),nitrite nitrogen NO-2-N),ammonium nitrogen(NH 4-N),CODMn and chlorophyll-a(Chla) in the samples were analyzed as main quality indexes for evaluation of effect of the polyculture on purifying waste water.Results show that removal rates of all the pollutants,except for Chla,first increased and then decreased during the experiment.The removal rate of NH 4-N ranged from 25.58% to 50.82%,with an average of 38.05%,and the highest appeared on August 28th and the lowest on December 2nd.The removal rate of NO-2N,NO-3-N,PO3-4-P,TN,TP,and CODMn varied from 16.95% to 45.45%,25.23% to 48.48%,18.37% to 52.43%,19.47% to 49.39%,12.24% to 50.00%, and 31.88% to 49.63%,averaging 26.93%,34.75%,36.50%,29.66%,32.49%,and 41.21%,respectively.What is more,they all peaked on September 29th and fell to the bottom on December 2nd.The polyculture showed significant effect in removing Chla,with an average rate being 83.49%.The values of comprehensive trophic index of the effluent water was much lower than that of the influent water of the polyculture system during the test.It could be concluded that the polyculture system is highly effective in purifying wastewater of the aquaculture farm.
Keywords:Hyriopsis cumingii  circular economy pattern  polyculure area  purification effect
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