沉水植物在静止水体中对悬浮固体的作用  

The Effect of Submerged Plants to Suspended solid in the static water

作　　者：江亭桂[1] 吕锡武[2] 王国祥[1] 郭长城[3] 潘国权[1] 

机构地区：[1]南京师范大学动力工程学院环境工程系,210042 [2]东南大学环境工程系,210096 [3]南京水利科学研究院,210029

出　　处：《中国科技信息》2006年第20期78-80,共3页China Science and Technology Information

基　　金：国家"十五"重大科技专项"863"项目(2003AA601100-2)

摘　　要：水中悬浮固体会影响沉水植物正常的生长,沉水植物反过来也会影响水中悬浮固体的浓度和沉降。实验研究了两种典型的沉水植物——轮叶黑藻和亚洲苦草在静止水体中对悬浮固体的作用,并与空白组进行了比较。结果表明:轮叶黑藻在一定条件下可明显降低水中悬浮固体的浓度,亚洲苦草则效果较差,另外沉水植物的种植都可以有效降低底部沉积物的量。Suspended ;solid in the Water will affect the normal growth of submerged plants, in turn, submerged plants will affect the concentration of suspended solid and it＇ s settlement in the water. The experiment has studied the effect of two submerged plants - Hydrilla verticillata and Vallisneria spiralis to sus^nded solid in static water and comDared them with the blank cell. The result indicates that Hydrilla verticillata can significantly reduce the concentration of suspended sediment in the water under certain conditions,at the same time can reduce the sediment settlement in the bottom But Vallisneria spiralis has seldom helpful impaction.

关 键 词：沉水植物 静止水体 轮叶黑藻 亚洲苦草 悬浮 固体 

分 类 号：X52[环境科学与工程—环境工程]