围网养殖对洪湖水质的影响分析  

Analysis of Influence of Enclosure Aquaculture on Water Quality of Honghu Lake

作　　者：班璇[1] 余成[1] 魏珂[1] 杜耘[1] 

机构地区：[1]中国科学院测量与地球物理研究所湖北省环境与灾害监测评估重点实验室,湖北武汉430077

出　　处：《环境科学与技术》2010年第9期125-129,共5页Environmental Science & Technology

基　　金：中国科学院知识创新工程重要方向项目资助(kzcx2-yw-141)

摘　　要：文章从围网养殖对洪湖水质影响的角度出发,依据1990～2006年在洪湖实测的水质数据分析了洪湖水质的时空变化过程及趋势,并发现水质指标中总氮的超标量变化明显。利用环境污染综合指数法,通过围网内和围网外以及围网前和围网后不同水文期的水质情况对比,对洪湖水质变化进行综合评价。结果表明围网内的环境污染综合指数在枯水期要远大于围网外的,围网养殖对湖泊的局部污染严重;围网前水质基本可以达到Ⅱ类水质标准,开始围网后洪湖水质逐步恶化,且围网养殖面积与水质恶化的程度有着相同的变化趋势,总氮的含量变化尤为明显,随着围网养殖规模面积的扩大急速增加。Influence of enclosure aquaculture on the water quality of Honghu Lake,Hubei Province was discussed. Change and trend process of water quality based on the measured data of the Lake from 1990 to 2006 were analyzed,and it was found that total nitrogen was out of limits markedly. Water quality was assessed through environmental contamination index method and compared in the enclosure positions with out of enclosure in different hydro-periods,as well as before the enclosure aquaculture with the after. Results ...

关 键 词：围网养殖 洪湖 环境污染指数法 水质 

分 类 号：X824[环境科学与工程—环境工程]