高等水生植物的分布对富营养化水体的影响

Effect of the Distribution of Advanced Hydrophyte on Eutrophicate Water

选取4个不同样地,研究了水生植物的分布与富营养化水体中总氮(TN)、总磷(TP)、叶绿素a(Chla)及几种重金属含量的关系.结果表明,水体中总氮含量、总磷含量、叶绿素a含量、重金属总含量大小顺序依次为:高等水生植物生物量大的样地<高等水生植物生物量小的样地<没有高等水生植物的样地,说明高等水生植物可显著提高水体透明度,净化富营养化水体.

The relationship of the contents of total nitrogen（TN） content and total phosphorus（TP） content, Chla and several heavy metals in eutrophicate water with the distribution of advanced hydrophyte of four different samples was studied. The results showed that the contents of TN,TP, Chla and totals heavy metals in water, from big to small, were the sample of big biomass advanced hydrophyte〈the sample of small biomass advanced hydrophyte〈 the sample of no advanced hydrophyte. It is concluded that advanced hydrophyte can obviously inhance the transparency of water and purificate eutrophicate water.