天津农学院学报 ›› 2018, Vol. 25 ›› Issue (1): 29-32.doi: 10.19640/j.cnki.jtau.2018.01.007

• 研究与简报 • 上一篇    下一篇

北方冬季4种常绿植物叶片光合特性与大气PM2.5的关系

杨静慧1, 罗虹1, 张般般1, 冀馨宁1, 周强1, 赵立伟2   

  1. 1. 天津农学院 园艺园林学院,天津 300384;
    2. 天津市北方绿业生态科技有限公司,天津 300304
  • 收稿日期:2017-03-16 出版日期:2018-03-20 发布日期:2019-11-05
  • 作者简介:杨静慧(1961 -),女,教授,博士,主要从事园艺植物栽培、抗逆生理和分子育种研究。E-mail:ajinghuiyang2@aliyun.com。
  • 基金资助:
    天津市农委项目(201502100); 天津市科委项目(16YFZCNC00750,15YFNZNC00010)

Relationship between photosynthetic characteristics of 4 evergreen and PM2.5 in winter of north

YANG Jing-hui1, LUO Hong1, ZHANG Ban-ban1, JI Xin-ning1, ZHOU Qiang1, ZHAO Li-wei2   

  1. 1. College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300384, China;
    2. Tianjin North Green Ecology Technology Co. Ltd , Tianjin 300304 , China
  • Received:2017-03-16 Online:2018-03-20 Published:2019-11-05

摘要: 为研究冬季雾霾天对北方常绿植物叶片光合特性的影响,选取天津地区4种具有代表性的植物大叶黄杨、剑麻、女贞、小叶黄杨为材料,用CL-340光合仪测定分析其叶片的净光合速率、蒸腾速率、气孔导度的动态变化和物种间的差异。结果表明:雾霾使所有植物的光合特性指标显著下降,4种植物的净光合速率、蒸腾速率、气孔导度均与PM2.5浓度呈负相关。其中大气中PM2.5浓度变化与大叶黄杨、女贞、剑麻、小叶黄杨4种植物的净光合速率的相关系数依次为-0.87、-0.78、-0.88、-0.84,表明有较强的相关性;与蒸腾速率的相关系数依次为-0.82、-0.80、-0.72、-0.67,即大叶黄杨和女贞的相关性均在-0.80以上,有较强的相关性;与气孔导度的相关系数依次为-0.737、-0.895、-0.794、-0.783,与剑麻具有强的相关性。此外,雾霾对不同种类植物净光合速率有较大影响,综合显示:剑麻对雾霾天有较强的抗性。

关键词: 冬季, 常绿植物, 光合特性, PM2.5, 相关性

Abstract: In order to study the influence of haze on the photosynthetic characteristics of evergreen in winter in North China, the net photosynthetic rate (Pn), transpiration rate, stonmatal conductance of leaves were analyzed by CL-340 and difference between species was compared with 4 representative evergreen(Euonymus japonicus, Agave sisialana, Ligustrum lucidum, Buxus sinica var.parvifolia)in Tianjin. The results showed that the photosynthetic characteristic of all plants decreased significantly,and the net photosynthetic rate, transpiration rate, stonmatal conductance of 4 species were negatively correlated with PM2.5. The correlation coefficient of the PM2.5 content in the atmosphere and the net photosynthetic rate of the 4 species, Euonymus japonicus, Ligustrum lucidum, Agave sisialana, Buxus sinica var.parvifolia were respectively -0.87、-0.78、-0.88、-0.84,which showed a strong correlation; the correlation coefficient with transpiration rate of leaves were -0.82、-0.80、-0.72、-0.67 successively, meaning stronger correlation in Euonymus japonicus and Ligustrum lucidum, which were above 0.80; the correlation coefficient with stonmatal conductance were -0.737、-0.895、-0.794、-0.783 successively,which had a strong correlation with Agave sisialana. Meanwhile,the net photosynthetic rate of 4 species were siginificantly different under influence of haze. It shows:Agave sisialana has strong resistance to haze.

Key words: winter, evergreen plant, photosynthetic characteristic, PM2.5, correlation

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