水生植物对富营养水体水质净化作用研究  

Studies on Eutrophicated Water Quality Improvement by means of Aquatic Macrophytes

作　　者：吴振斌[1] 邱东茹[1] 贺锋[1] 刘保元[1] 邓家齐[1] 詹发萃[1] 

机构地区：[1]中国科学院水生生物研究所淡水生态与生物技术国家重点实验室,武汉430072

出　　处：《武汉植物学研究》2001年第4期299-303,共5页Journal of Wuhan Botanical Research

基　　金：国家杰出青年科学基金(项目号 3992 5 0 0 7);国家自然科学基金(项目号 39730 380 );欧盟国际科技合作项目(合同号 ERBIC1 8CT960 0 5 9)资助

摘　　要：利用富营养浅水湖泊武汉东湖中所建立的大型实验围隔系统 ,对沉水植物的水质净化作用作了现场实验研究。重建后的沉水植物可以显著改善水质 ,水体透明度显著提高 ,水色降低。在研究期间 ,水生植物围隔 CODCr和 BOD5一般分别为 2 0和 5 mg/L左右 ;对照围隔和大湖水体则分别约为 40和 1 0 mg/L。水生植物围隔水体中可检出的有机污染种类也较对照围隔和大湖水体低。The effects of the rehabilitation of submerged vegetation on water quality improvement were investigated by using large scale enclosure system which were installed in a hyper eutrophicated lake,Lake Donghu in Wuhan.The results shown that the transparencies in the enclosures with macrophytes were considerably enhanced compared with the control enclosure without macrophytes and the lake water,while the apparent water color was decreased.COD Cr and BOD 5 were about 20 and 5 mg/L respectively in the macrophyte enclosures,while those of the control enclosure and lake water were at the level of 40 and 10 mg/L.The number of detected organic pollutants isolated from the water body of macrophyte enclosures was also lower than that of the control enclosure and the lake water.It was demonstrated that the water quality could be significantly improved by reconstructing aquatic macrophytes.

关 键 词：沉水植物 水质净化 水生植物 富营养水体 

分 类 号：X52[环境科学与工程—环境工程] X173