[1]陈志超,张志勇,刘海琴,等.4种水生植物除磷效果及系统磷迁移规律研究[J].南京农业大学学报,2015,38(1):107-112.[doi:10.7685/j.issn.1000-2030.2015.01.016]
 CHEN Zhichao,ZHANG Zhiyong,LIU Haiqin,et al.Research on removal efficiency of phosphorus by four aquatic macrophytes and rule of phosphorus migration in systems[J].Journal of Nanjing Agricultural University,2015,38(1):107-112.[doi:10.7685/j.issn.1000-2030.2015.01.016]
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4种水生植物除磷效果及系统磷迁移规律研究()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
38卷
期数:
2015年1期
页码:
107-112
栏目:
出版日期:
2015-01-04

文章信息/Info

Title:
Research on removal efficiency of phosphorus by four aquatic macrophytes and rule of phosphorus migration in systems
作者:
陈志超12 张志勇1 刘海琴1 闻学政1 秦红杰1 严少华1 张迎颖1
1. 江苏省农业科学院农业资源与环境研究所, 江苏 南京 210014;
2. 南京农业大学资源与环境科学学院, 江苏 南京 210095
Author(s):
CHEN Zhichao12 ZHANG Zhiyong1 LIU Haiqin1 WEN Xuezheng1 QIN Hongjie1 YAN Shaohua1 ZHANG Yingying1
1. Institute of Agricultural Resources and Environmental Sciences, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
2. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
关键词:
水生植物富营养化水体底泥磷去除磷迁移
Keywords:
aquatic macrophyteseutrophic watersedimentphosphorus removalphosphorus migration
分类号:
X703
DOI:
10.7685/j.issn.1000-2030.2015.01.016
摘要:
[目的]研究不同生态类型水生植物对水体总磷的去除效果及系统磷迁移规律.[方法]选取4种不同生态类型水生植物,分别为漂浮植物凤眼莲、水浮莲和挺水植物香蒲以及沉水植物轮叶黑藻,结合滇池富营养化湖水及底泥,构建静态模拟生长体系.[结果]4种水生植物对富营养化湖水、底泥具有一定的耐受能力.试验80 d后,凤眼莲、水浮莲和香蒲对水体总磷的去除率分别为95.0%、94.3%和92.0%.凤眼莲系统中水体磷浓度大幅度降低,底泥中的磷素逐渐释放,凤眼莲所吸收磷素来源于水体和底泥;水浮莲所吸收磷素主要来源于水体;香蒲鲜质量增加极少,在降低水体总磷浓度的同时,促使底泥总磷含量略微增加,从表观上看,水体为其吸收磷素的主要来源;轮叶黑藻植株部分发生腐烂,对水体总磷的去除率仅为62.9%,低于对照,但对底泥中总磷吸收良好,底泥是其吸收磷素的主要来源.[结论]凤眼莲、水浮莲和香蒲能有效降低水体总磷;凤眼莲和轮叶黑藻能够吸收底泥中的磷素;当水体总磷浓度较低时,底泥中的磷素会释放至水中.
Abstract:
[Objectives]Removal efficiency of phosphorus by aquatic macrophytes of different ecological types and rule of phosphorus migration in the systems were discussed in the paper. [Methods]Static simulation experiments were carried out utilizing eutrophic water and sediment from the Dianchi Lake together with four aquatic macrophytes of different ecological types, including the floating plants water hyacinth and water lettuce, the emergent plant typha and the submerged plant hydrilla. [Results]The four water macrophytes showed considerable tolerance capacity to eutrophic water and sediment. After 80 days, the removal rate of total phosphorus(TP)in water were 95.0%, 94.3% and 92.0% respectively. In water hyacinth system, while the concentration of TP in water significantly decreased, the phosphorus in sediment gradually released, so phosphorus absorbed by water hyacinth came from water and sediment. In water lettuce system, the main source of phosphorus absorbed by the plant was water. In typha system, though the plant biomass increased very little, the plant also reduced the concentration of TP in water and prompted a slight increase of phosphorus content in sediment, and then, from the table new phosphorus absorbed by the plant mainly came from water. In hydrilla system, due to part rot of the plant, the removal rate of TP in water was 62.9% below the control treatment, but the plant showed a good absorption capacity to phosphorus in sediment, so sediment was the main source of phosphorus absorbed by the plant. [Conclusions]Water hyacinth, water lettuce and typha could effectively reduce the concentration of total phosphorus;water hyacinth and hydrilla could assimilate phosphorus in sediment. When the concentration of total phosphorus in water was low, the phosphorus in sediment could release to the water.

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备注/Memo

备注/Memo:
收稿日期:2014-5-31。
基金项目:国家自然科学基金青年基金项目(41201533);国家"水体污染控制与治理"科技重大专项(2012ZX07102-004-002-003);江苏省农业科技自主创新资金项目(CX(12)5054)
作者简介:陈志超,硕士研究生.
通讯作者:张迎颖,副研究员,主要从事富营养化水体生态修复方面的研究,E-mail:fly8006@163.com.
更新日期/Last Update: 1900-01-01