多环芳烃(萘)污染对水生植物生理指标的影响  

Effects of PAHs(naphthalene) Pollution on the Physiological Index of Hydrophyt e

作　　者：刘建武[1] 林逢凯[1] 王郁[1] 胥峥[1] 张啸[1] 

机构地区：[1]华东理工大学资源与环境工程学院,上海200237

出　　处：《华东理工大学学报（自然科学版）》2002年第5期520-524,536,共6页Journal of East China University of Science and Technology

摘　　要：通过盆栽试验研究了萘污染对 5种水生植物生理指标的影响。结果表明 ,萘对水生植物具有某些毒害作用 ,且随着浓度的增加 ( 1 .2 mg/L～ 1 6.1 mg/L)显示出明显的负效应 ,表现为呼吸强度受到抑制 ,叶绿素含量降低 ;水葫芦、水花生的过氧化物酶 ( POD)活性逐渐升高 ,浮萍、紫萍和细叶满江红的酶活性随萘浓度增加先升高后降低。叶绿素含量及 POD活性可以作为水生植物受萘污染的指标。Based on the pot experiments, effects of PHAs (naphthalene) pollution on the phy siological index of hydrophyte were studied. The results show that naphthalene p ollution can do certain harm to hydrophyte and the growth of hydrophytes exi st o bvious negative effects as the concentration of naphthalene increases (1.2mg/L～ 16.1mg/L) such as inhibiting the respiration rate of hydrophyte and decreasing t he contents of chlorophyll. The POD activity of Eichhornia crassipes solms a n d Alternanthera philoxeroides rises gradually and that of Lemna minor, Spi rodel a polyrrhiza shleid and Zolla filiculoides lamark rises at first, th e n comes down with the increase of concentration of naphthalene. The contents of blade pigment and POD activity can be used as index of hydrophytes polluted by n aphthalene.

关 键 词：多环芳烃 萘污染 水生植物 生理指标 叶绿素 过氧化物酶 有机污染物 水体净化 

分 类 号：X52[环境科学与工程—环境工程] X171.5