作 者：
梁玉婷;王宁迪;王朴;康凯丽;朱彦;夏禹
摘 要：
为了阐明不同湿地植物配置类型对高浓度氮、磷的响应机制,选取具有一定景观效果的3种生活型湿地植物配置成编号为A、B、C的3个组合,测定不同植物群落对模拟水体中总氮、总磷的移除效果,以及DO、pH和EC的变化.研究结果表明:植物组合对水中总氮有较好的移除效果,植物组合对水中TN的移除率是68%~93%;TP移除率达到44%~64%以上.组合C对总氮移除率最高(93.2%),组合A对总磷移除率最高(64.73%);TN移除方面,组合B、C与CK三者均有显著差异(P<0.05);TP移除方面,CK与各植物群落无显著差异;物理指标方面,栽植植物的水样与CK水样在pH这一指标上均具有显著差异(P<0.05);组合A、B与CK水样中的DO具有显著性差异.各组合及CK中的EC值差异显著.矮生美人蕉的生物量增长率最高(29.84%),而穗花狐尾藻的表现最差,在A和B组合中全部死亡.综上,不同植物组合类型对氮、磷的移除以及水体的物理指标改善是不同的,植物组合对总氮的移除能力高于CK,仅组合A对总磷的移除能力高于CK,不同植物组合中的植物对水体的适应能力也是不同的.
译 名：
Effects of Wetland Plant Assemblages on Simulated High Concentrations of Nitrogen and Phosphorus and Their Environmental Effects
关键词：
plant combinations%removal of N%removal of P%environmental effects
摘 要：
In order to clarify the response mechanism of different wetland plant combinations to high concentrations of nitrogen and phosphorus,three types wetland plants were selected and assigned into three combinations(A,B and C)with certain landscape ef-fects,monitoried the growth of the plants and their removal effect and the warer quality of DO,pH and EC.The results showed that the plant combination had better removal effect on total nitrogen in water,the removal rate of TN from water by plant combination was 68%-93%.The TP removal rate was more than 44%-64%.The best nitrogen removal rate of combination C was 93.2%,and the maximum phosphorus removal rate of combination A was 64.73%.In terms of TN removal,combinations B,C and CK were signifi-cantly removed(P<0.05).In terms of TP removal,there was no significant difference between CK and other plant communities.In terms of physical indexes,there were significant differences in pH between cultivated plant water samples and CK water samples(P<0.05).The DO in combination A,B and CK water samples had significant differences respectively.There was no significant difference in EC values between all combinations and CK.The Canna glauca'Taney'had the highest growth rate of 29.84%,while the Myrio-phyllum verticillatum performed the worst,dying all in the A and B combinations.In conclusion,that different plant combinations have different removal rates of N,P and other physical indexes of water bodies.The removal capacity of total N by plant combina-tions is higher than CK,only combination a higher than CK at the removal capacity of total P,and the adaptation capacity of plants in different plant combinations to water bodies is also different.
