关键词：
橐吾;畜禽废水;生长;观赏特性;生理特性
摘 要：
通过模拟人工湿地环境,以2种浓度畜禽废水分别处理橐吾(Ligularia sibirica),研究其对橐吾生长和生理特性影响。结果表明:畜禽废水处理后,较高浓度和中浓度处理组的橐吾株高分别比对照增加了9.40%和6.51%,叶长分别增加14.24%和1.94%,叶宽分别增加12.94%和2.31%;较高浓度废水处理组的橐吾花期达62 d,而中浓度和对照仅分别为56和51 d,畜禽废水浓度越高对橐吾的影响越大;过氧化物酶(POD)活性和根系活力均表现为先降低再升高;丙二醛(MDA)含量变化趋势不规则,但整体低于自然生长状态;质膜最终也未发生明显的电解质外渗现象;净光合速率、气孔导度、胞间CO2浓度和蒸腾速率均整体表现为:较高浓度>中浓度>对照。因此,橐吾对畜禽废水有良好的适应能力和耐污能力,是优良的人工湿地植物。
译 名：
GROWTH AND PHYSIOLOGIC CHARACTERISTICS OF Ligularia sibirica UNDER LIVESTOCK WASTEWATER TREATMENT
作 者：
WANG Ying-jun ZHANG Jun-ping DENG Shi-huai(College of Resources and Environment,Sichuan Agricultural University,Sichuan,Ya’an 625014)
关键词：
Ligularia;livestock wastewater;growth;ornamental quality;physiologic characteristic
摘 要：
Effects of waste water on the growth and physiologic characteristic of Ligularia sibirica were studied through simulating constructed wetland.Result showes that,the plant height of Ligularia in higher and middle concentration livestock wastewater treatment increased by 9.40% and 6.51%,leaf length increased by 14.24% and 1.94%,and the leaf width increased by 12.94% and 2.31% compared to the control group,respectively.The florescence of Ligularia in higher concentration treatment group reached 62d,while the middle concentration treatment group and the control were only 56 and 51 d.Both POD activity and root activity decreased at first,and increased later.The variation of MDA concentration performed an irregular trend,but it was lower than control.The membrane showed no obvious change of electrolyte leakage phenomena.The net photosynthetic rate,stomatal conductance,intercellular CO2 concentration and transpiration rate followed the order of higher concentration>middle concentration>control.Therefore,it can be concluded that Ligularia has good adaptability and pollution resistance ability to livestock wastewater,and it is an excellent constructed wetland plant.
