| 模拟酸雨对石栎(Lithocarpus glabra)生长及叶绿素荧光特性的影响 |
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| 引用本文： | 余树全,蔡梦莎,伊力塔,汪赛,殷秀敏. 模拟酸雨对石栎(Lithocarpus glabra)生长及叶绿素荧光特性的影响[J]. 东北农业大学学报, 2012, 0(11): 81-86 |
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| 作者姓名： | 余树全 蔡梦莎 伊力塔 汪赛 殷秀敏 |
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| 作者单位： | 浙江农林大学林业与生物技术学院;杭州之江园林绿化艺术有限公司 |
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| 基金项目： | 国家自然科学基金(30970485、31100325);浙江省自然科学基金(Y3110200、Y5110226);浙江省教育厅科研项目(Y201017730);浙江省科技厅重大科技专项重点项目(2006C12060) |
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| 摘 要： | 采用模拟酸雨喷淋方法,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,不同季节石栎(Lithocarpus glabraThunb.)植株生长、叶片相对叶绿素含量与叶绿素荧光特性的差异。结果表明,模拟酸雨胁迫下石栎植株的叶绿素含量(SPAD)、PSⅡ最大光化学效率(Fv/Fm)、PSⅡ潜在活性(Fv/Fo)、株高和地径的变化趋势均为:对照(CK)>中度酸雨>重度酸雨,而对石栎植株的光化学淬灭系数(qP)和非光化学淬灭系数(qN)影响差异不显著。说明石栎在无酸或微酸条件下具有良好的适应性,并能促进其生长;而在强酸的条件下石栎植株的适应性较差。
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| 关 键 词： | 酸雨 石栎 叶绿素荧光特性 生长 季节 |
Effect of acid rain stress on growth and leaf chlorophyll fluorescence charac teristics in Lithocarpus glabra |
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| YU Shuquan,CAI Mengsha,YU Lita,WANG Sai,YIN Xiu min. Effect of acid rain stress on growth and leaf chlorophyll fluorescence charac teristics in Lithocarpus glabra[J]. Journal of Northeast Agricultural University, 2012, 0(11): 81-86 |
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| Authors: | YU Shuquan CAI Mengsha YU Lita WANG Sai YIN Xiu min |
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| Affiliation: | 1.School of Forestry and Biotechnology,Zhejiang A&F University,Lin’an Zhejiang 311300,China;2.Hangzhou z-river Landscape Art Co.,Ltd.,Hangzhou 310053,China) |
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| Abstract: | A pot experiment was conducted to study the growth and leaf chlorophyll fluorescence characteristics of Lithocarpus glabra in different seasons under simulated acid rain stress(heavy stress,pH 2.5;moderate stress,pH 4.0;and control pH 5.6).The results showed that trends of the leaf relative chlorophyll content(SPAD),maximum PSⅡ photochemical efficiency(Fv/Fm),PSⅡ potential activity(Fv/Fo),plant height and stem diameter in different acid rain stress were pH 5.6(CK)>pH4.0>pH 2.5,but lesser effects on qP and qN.The results indicated that Lithocarpus glabra had better adaptability under the lower acidic forcing which promoted its growth and had poor adaptability under higher acidic forcing conditions. |
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| Keywords: | acid rain Lithocarpus glabra chlorophyll fluorescence growth season |
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