NAN Nan,ZHANG Bo,LI Hai-dong,et al.Water Quality Purification Ability of Main Wetland Plant Community in Hongze Lake[J].Research of Soil and Water Conservation,2011,18(01):228-231,235.
洪泽湖湿地主要植物群落的水质净化能力研究
- Title:
- Water Quality Purification Ability of Main Wetland Plant Community in Hongze Lake
- Keywords:
- aquatic plants; water quality purification; wetland; Hongze lake
- 分类号:
- Q146;X173
- 摘要:
- 通过建立围隔实验区的方法，以洪泽湖主要湿生植物群落芦苇、莲、菱、凤眼莲、苦草、金鱼藻为对象，研究了不同湿生植物群落对富营养化水体净化的能力。结果发现：研究区主要水生植物群落对富营养化水体总氮的去除能力从大到小依次为苦草（78.56%）、凤眼莲（66.26%）、金鱼藻（57.61%）、莲（50.18%）、菱（46.04%）、芦苇（37.39%），对总磷的去除能力从大到小依次为苦草（61.84%）、芦苇（46.55%）、菱（44.83%）、金鱼藻（45.00%）、莲（39.66%）、凤眼莲（25.17%），对CODMn的去除能力从大到小依次为金鱼藻（61.33%）、苦草（55.56%）、菱（52.44%）、莲（47.11%）、凤眼莲（27.77%）、芦苇（23.33%）。沉水植物苦草、金鱼藻对各种营养元素的净化效果都较好，产氧能力也较高；浮叶植物菱的净化效果比较稳定；挺水植物芦苇对总磷的净化效果稍好，而对其他各项净化能力均相对较弱。
- Abstract:
- The quality purification ability of different hygrophytes communities to eutrophication water was studied through the experimental enclosure of Hongze lake, and the different hygrophytes communities are Phragmites australis, Nelumbo nucifera, Trapa bispinosa, Eichhornia crassipes, Vallisneria natans and Ceratophyllum demersum. The results showed that the elimination ability of main wetland plant community to TN in eutrophication water body follwing the order of Vallisneria natans(78.56%), Eichhornia crassipes(66.26%), Ceratophyllum demersum(57.61%), Nelumbo nucifera(50.18%), Trapa bispinosa(46.04%), Phragmites australis(37.39%), the elimination ability to TP follwing the order of Vallisneria natans(61.84%), Phragmites australis(46.55%), Trapa bispinosa(44.83%), Ceratophyllum demersum (45.00%), Nelumbo nucifera(39.66%), Eichhornia crassipes(25.17%), the elimination ability to CODMn follwing the order of Ceratophyllum demersum(61.33%), Vallisneria natans(55.56%), Trapa bispinosa(52.44%), Nelumbo nucifera(47.11%), Eichhornia crassipes (27.77%), Phragmites australis(23.33%). And the submerged plants, Vallisneria natans and Ceratophyllum demersum, have a great role to purify the nutritive elements in water and produce oxygen. And the purification effect of Trapa community is quite stable. The community of Phragmites australis has a better purification effect to total phosphorus, but to the other nutritive indicators of eutrophication water, it is much weaker.
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备注/Memo
收稿日期:2010-7-20;改回日期:2010-8-4。
基金项目:国家“十一五”科技支撑课题 （2006BAD03A16）
作者简介:南楠（1982- ），女，硕士，江苏徐州人，讲师，主要从事园林景观设计与景观生态修复研究。E-mail：nannan2211@163.com
通讯作者:张金池（1962- ），男，山东人，博士生导师，教授，主要从事林业生态工程研究。E-mail：zhang8811@njfu.edu.cn