【摘要】 为了解湖泊、河流不同底质条件对高等沉水植物生长所产生的影响,通过人工模拟,进行曝气泥、河道底泥、掺砂泥和细砂4种不同底质条件下的轮叶黑藻生长影响试验。轮叶黑藻的分根数、成活率和生物量等指标的变化表明:曝气泥和掺砂泥的试验组中的轮叶黑藻的生长情况优于底质为河道原泥和细砂的试验组,水体底质条件对水生植物的生长有较大的影响,这对富营养化水体修复中水生植物的重建有着积极的意义。更多还原

【Abstract】 Submerged macrophytes were planted in different sediments for study of the effects of different sediments in rivers and lakes on the growth of submerged macrophytes.In the experiment,aerobic sediment,original sediment,sandy sediment,and sand were selected as different sediments in the study of rooting tips,surviving rate,and biomass of Hydrilla verticillata.The results showed that the upgrowth of Hydrilla verticillata in aerobic sediment and sandy sediment was better than that in original sediment and sand.The study indicates that sediments have great influence on the upgrowth of hydrophytes and it has positive significance to rehabilitation of submerged macrophytes in restoration of eutrophic waters.更多还原