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应用生态学报 ›› 2010, Vol. 21 ›› Issue (06): 1374-1380.

• 研究报告 • 上一篇    下一篇

酸雨胁迫对秃瓣杜英幼苗叶片叶绿素荧光特性和生长的影响

殷秀敏1,余树全1**,江 洪1,2,刘美华1   

  1. 1浙江林学院林业与生物技术学院,浙江临安 311300;2南京大学国际地球系统科学研究所,南京 210093
  • 出版日期:2010-06-18 发布日期:2010-06-18

Effects of acid rain stress on Eleocarpus glabripetalus seedlings leaf chlorophyll fluorescence characteristics and growth.

YIN Xiu-min1, YU Shu-quan1, JIANG Hong1,2,LIU Mei-hua1   

  1. 1School of Forestry and Biotechnology, Zhejiang Forestry College, Lin’an 311300, Zhejiang, China;2International Institute for Earth System Science, Nanjing University, Nanjing 210093, China
  • Online:2010-06-18 Published:2010-06-18

摘要: 采用盆栽试验和模拟酸雨喷淋的试验方法,研究了重度酸雨(pH 2.5)、中度酸雨(pH 4.0)和对照(pH 5.6)处理下,不同季节秃瓣杜英幼苗叶片的叶绿素荧光特性及其生长差异.结果表明:不同季节相同处理下,秃瓣杜英幼苗叶片的相对叶绿素含量(SPAD)、PSⅡ的最大光化学效率(Fv/Fm)、PSⅡ实际光化学量子产量(ΦPSⅡ)、株高和地径均为10月>7月>4月>1月;同一季节不同处理中,SPAD、Fv/FmΦPSⅡ、株高和地径为重度酸雨>中度酸雨>对照;不同pH酸雨梯度处理和季节的交互作用对秃瓣杜英的SPAD、Fv/Fm、株高和地径的影响显著,而对ΦPSⅡ、光化学淬灭系数和非光化学淬灭系数的影响不显著.

关键词: 酸雨胁迫, 秃瓣杜英, 叶绿素荧光特性, 生长, 季节 

Abstract: A pot experiment was conducted to study the Eleocarpus glabripetalus seedlings leaf chlorophyll fluorescence characteristics and growth in different seasons under simulated acid rain stress (heavy, pH=2.5; moderate, pH=4.0; and control, pH=5.6). In the same treatments, the leaf relative chlorophyll content(SPAD), maximum PSⅡ photochemical efficiency (Fv/Fm), actual PSⅡ photochemical quantum yield (ΦPSⅡ), plant height, and stem diameter in different seasons were all  in the order of October>July>April>January. In the same seasons, all the parameters were in the order of heavy acid rain>moderate acid rain>control. The interactions between different acid rain stress and seasons showed significant effects on the SPAD, Fv/Fm, plant height, and stem diameter, but lesser effects on ΦPSⅡqP and qN.

Key words: acid rain stress, Eleocarpus glabripetalus, chlorophyll fluorescence characteristic, growth, season