农业环境科学学报2013，Vol.32Issue(8)：1625-1632,8.DOI:10.11654/jaes.2013.08.020
5种湿地植物生理生长特性变化及其对污水净化效果的研究
Growth Characteristics and Sewage Cleaning Effect of Five Wetland Plants
摘要
Abstract
Five species of wetland plants,including Phragmites australis,Lythrum salicaria,Scirpus planiculmis,Scirpus validus and Typha angustata,were selected to grow in sewage.Their biological characteristices were assessed and their capability to remove nutrients,such as chemical oxygen demand (CODCr),total phosphorous (TP)and ammonia nitrogen (NH4+-N)in constructed wetland systems,was analyzed.During the experimental period,the growth characteristices and sewage cleaning effect of each plant was evaluated by both physiological and chemical methods.The results demonstrated that the plants cultivated in sewage grew better than those in tap water as measured by plant photosynthesis,chlorophyll fluorescence,plant height,and biomass.There were significant differences between the plants growing in tap water and in sewage as measured by net photosynthetic rate,Fv/Fm,Chlorophyll content (P＜0.05)of Typha angustata,Scirpus validus and Phragmites australis(P＜0.05).Furthermore,it was shown that all of the five species are highly efficient in removing CODCr、TP and NH4+-N,as the concentration of CODCr was decreased from 192 mg· L-1 to 8～ 19 mg· L-1,TP from 1.46 mg· L-1 to 0.04～0.15 mg· L-1,and NH4+-N from 1.26 mg·L-1 to 0.01～0.1 mg·L-1.We conclude that the five species grow better in the sewage than in the tap water.Typha angustata,Scirpus validus and Phragmites australis are the better ones among the five in remedying eutrophic water and improving water quality,followed by Lythrum salicaria and Scirpus planiculmis.关键词
湿地植物/光合作用/叶绿素荧光/生物量/污水净化Key words
wetland plants/ photosynthesis/ chlorophyll fluorescence/ biomass/ sewage clean分类
资源环境引用本文复制引用
李龙山,倪细炉,李志刚,李健..5种湿地植物生理生长特性变化及其对污水净化效果的研究[J].农业环境科学学报,2013,32(8):1625-1632,8.基金项目
国家国际科技合作专项项目(2011DFG32780) （2011DFG32780）
宁夏国际合作项目:黄河流域宁夏段生态功能稳定性维持技术研究 （）
