水生植物对水体重金属污染的监测和生态修复

水生植物对水体重金属污染具有良好的监测和生态修复功能。苔藓植物是重金属污染良好的生物监测器,可用于水体重金属污染状况的监测和评价。同时,4种生活型的水生植物(挺水、浮叶、漂浮和沉水植物)对重金属都有一定的富集能力,对重金属污染水体有生态修复作用。利用水生植物对水体进行生态修复具有简便易行、成本较低、不易形成二次污染的优势,在修复水体重金属污染的同时还可以美化环境,并可产生直接或间接的经济效益。

Biomonitoring and Ecological Restoring Heavy Metal Polluted Water by Aquatic Plants

Aquatic plants have excellent ability in biomonitoring and ecological restoring heavy metal polluted water.Bryophytes are excellent biomonitors of heavy metal pollution,so they can be used to monitor and evaluate the heavy metal contamination level of the studied water.Moreover,four life forms of aquatic plants(including emergent,free-drifting,floating-leaved and submergent) all have certain accumulation capacity on heavy metals,so they are appropriate materials for ecological restoring of heavy metal polluted water.Using aquatic plants to treat heavy metal polluted water is a simple and low cost method,and won't bring secondary pollution.This phytoremediation method can not only restore heavy metal pollution,but also prettify the environment and bring direct and indirect economic benefits.