不同水生植物群落对氮磷富集状况的差异研究  

Differential study on nitrogen and phosphorus accumulationin different aquatic plant communities

作　　者：洪舒晨 汪超儿 丰兆睿 薛向东 HONG Shuchen;WANG Chao er;FENG Zhaorui;XUE Xiangdong(School of Civil Engineering and Architectural,Zhejiang University ofScience and Technology,Hangzhou 310023,Zhejiang,China)

机构地区：[1]浙江科技学院土木与建筑工程学院,杭州310023

出　　处：《浙江科技学院学报》2021年第5期432-440,共9页Journal of Zhejiang University of Science and Technology

基　　金：浙江科技学院研究生课程建设项目(2019YJSKJ02);浙江科技学院教学改革项目(2019J1);嘉善县科技计划项目(2020D01)。

摘　　要：为研究不同水生植物群落对氮磷富集状况的差异,选用美人蕉(Canna indica)、鸢尾(Iris tectorum)、梭鱼草(Pontederia cordata)、黑麦草(Lolium perenne)、狐尾藻(Myriophyllum verticillatum)、铜钱草(Hydrocotyle chinensis)作为组群基础植物,构建了4种群落组合。通过水培试验证明,4种群落植物均能正常生长,并表现出对氮和磷较高的富集能力。群落3(鸢尾+美人蕉+梭鱼草+铜钱草)中的植物生长速率最大,且对氮、磷具有相对更强的富集能力;群落1(鸢尾+黑麦草+美人蕉+狐尾藻)对氮的富集能力最小,而群落2(鸢尾+黑麦草+美人蕉+铜钱草)对磷的富集能力最小。依据群落中植物生长速率及对氮、磷的富集状况差异,可确定群落3形式的植物组合对富营养化水体的治理更为有效,可在实际工程中考虑应用。In order to probe into the differences of nitrogen and phosphorus accumulation in different aquatic plant communities,four communities were constructed by selecting and combining canna,iris,haloxylon ammodendron,ryegrass,myriophyllum and pennisetum as the basic plants of each community.The hydroponic experiments show that all the plants in the four communities could grow normally,revealing a fairly high ability to accumulate nitrogen and phosphorus.In comparison,the plant growth rate of community 3(iris+canna+haloxylon ammodendron+pennisetum)is the highest,with a much stronger ability to accumulate nitrogen and phosphorus.Community 1(iris+ryegrass+canna+myriophylla)has the least ability to accumulate nitrogen,while community 2(iris+ryegrass+canna+pennisetum)has the least ability to accumulate phosphorus.According to the differences of plant growth rate and accumulation of nitrogen and phosphorus in the communities,it can be determined that the plant combination of community 3 is more effective for the treatment of eutrophic water body,applicable to practical engineering.

关 键 词：生态浮床 氮磷去除 植物群落 富营养水体 

分 类 号：X703.1[环境科学与工程—环境工程]