Changes of chlorophyll and carotenoid content, SOD, MDA, proline content in leaves of 5 emerged plants (Iris pseudacorus, Pontederia cordata, Typha orientalis, Thalia dealbata and Spiked loosestrlfe) under sewage submerging were studied by potted plant experiments, and their effects of purifying sewage were discussed by analyzing 6 water quality parameters: TN, NH+4-N, (NO-3-N＋NO-2-N), TP and COD. The results were as follows: the chlorophyll content of 5 emerged plants fluctuated at the initial submerging period, but declined towards the end of sewage submerging, the carotenoid content had the similar tendency. During 15th-30th day after submerging, the change of SOD activity of both I. pseudacorus and S. loosestrlfe was little, and that of other plants went down, but SOD activity of whole plants increased after 45 days of submerging, and MDA content had a trend of rising at the later submerging period even though the change was not very acute in 15-30 days of submerging. The proline content of I. pseudacorus and P. cordata varied greatly, and that of other plants were not evident. The results from the comparation of physiological responses of five emerged plants showed T. orientalis, which wasnt sensitive to sewage submerging, was an more enduring specie to sewage submerging. On the other hand, the removal rates of T. dealbata to TN was 61.75 %, that of T. orientalis to TP was 87.50 %, so they were fine water punfication plant.
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1]李冬林,王磊,丁晶晶,等. 水生植物的生态功能和资源应用[J]. 湿地科学,2011,9(3):290-296.
[2]迟橙,龙岳林.水生植物修复城市富营养化污水的研究进展[J]. 湖南农业大学学报:自然科学版,2009,35(1):51-55.
[3]李文朝.富营养水体中水生植被组建及净化效果研究[J]. 中国环境科学,1997,17(1):53-57.
[4]许木启,黄玉瑶.受损水域生态系统恢复与重建研究[J]. 生态学报,1998,18(5):547-558.
[5]蒋跃平,葛滢,岳春雷,等. 人工湿地植物对观赏水中氮磷去除的贡献[J]. 生态学报,2004,24(8):1718-1723.
[6]杨集辉,周守标,谢传俊,等. 菖蒲和石菖蒲的生长特性及其对生活污水净化功能的比较研究[J]. 激光生物学报,2008,17(3):417-422.
[7]李合生.植物生理生化实验原理和技术[M].北京:高等教育出版社,2000.
[8]邹琦.植物生理生化试验指导[M].北京:中国农业出版社,2000.
[9]赵世杰,许长城,邹 琦,等. 植物组织中丙二醛测定方法的改进[J]. 植物生理学通讯,1994,30(3):207-210.
[10]黄燕,吴平.SAS统计分析及应用[M].北京:机械工业出版社,2006.
[11]Smirnoff N. The role of active oxygen in the response of plant to water deficit and desiccation[J]. New Phytol, 1993,125(1): 27-58.
[12]陈少裕.脂膜过氧化对植物细胞的伤害[J]. 植物生理学通讯,1991,27(2):84-90.
[13]崔克辉,何之常,张甲耀,等. 模拟N、P污水对水稻幼苗过氧化物酶和氧化物歧化酶的影响[J]. 环境科学学报,1995,15(4):447-453.
[14]孙譞,郁东宁,赵慧,等. 12种挺水植物对模拟污水的净化作用[J]. 北京农学院学报,2010,25(2):62-67.
[15]周守标,王春景,杨海军,等. 菰和菖蒲在污水中的生长特性及其净化效果比较[J]. 应用与环境生物学报,2007,13(4):454-457.
[16]成水平,况琪军,夏宜琤.香蒲、灯芯草人工湿地的研究──Ⅰ.净化污水的效果[J]. 湖泊科学,1997,9(4):358-366.
PDF(775329 KB)
