华北农学报 ›› 2011, Vol. 26 ›› Issue (S2): 75-79. doi: 10.7668/hbnxb.2011.S2.018

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银杉的光合特性

张向峰1, 王玉杰1, 王云琦1, 郭平1, 刘春霞1, 郑培龙2   

  1. 1. 北京林业大学水土保持学院, 北京100083;
    2. 北京水保生态工程咨询有限公司, 北京 100055
  • 收稿日期:2011-11-04 出版日期:2011-12-31
  • 通讯作者: 王玉杰(1960-),男,北京人,教授,博士,主要从事水土保持、山地灾害的研究.
  • 作者简介:张向峰(1985-),男,山西武乡人,硕士研究生,主要从事水土保持、山地灾害防治的研究.
  • 基金资助:
    林业公益性行业科研专项(201104005-01);中央高校基本科研业务费专项资金(YX2011-26)

Characteristics of Photosynthetic and Transpiration of Cathayaargyrophylla Chun et Kuang Leaves

ZHANG Xiang-feng1, WANG Yu-jie1, WANG Yun-qi1, GUO Ping1, LIU Chun-xia1, ZHENG Pei-long2   

  1. 1. College of Water and Soil Conservation, Beijing Forestry University, Beijing 100083, China;
    2. Beijing Conservation Ecological Engineering Consulting Co, LTD, Beijing 100055, China
  • Received:2011-11-04 Published:2011-12-31

摘要: 为了给栽培管理银杉者提供较好的科学理论依据,采用LI-6400XT便携式光合测定仪,以引种的银杉为研究对象,测定其叶片的光合特性。结果表明,银杉净光合速率呈现明显的日变化,且为双峰型。银杉存在光合午休现象,光合午休现象主要受气孔因素限制。银杉的光补偿点较高(10.2μmol/(m2.s)),光饱和点也比较高(1 500μmol/(m2.s)),表现为阳生植物,适应光照环境比较窄。

关键词: 银杉, 光合速率, 蒸腾速率, 光饱和点, 光补偿点

Abstract: In this paper Cathayaargyrophylla Chun et Kuang was tested for photosynthetic rate with Licor-6400,which would provide some scientific basis for the management of Cathayaargyrophylla Chun et Kuang.Results indicated that in the curves of diurnal changes net photosynthetic rate of Cathayaargyrophylla Chun et Kuang exhibited two peaks and obvious phenomena of midday depression.Decrease of stomatic conductance caused the depression of net photosynthetic rate,which was regulated by stomatal factors.The light compensation point and light saturation point of Cathayaargyrophylla Chun et Kuang were 10.2 and 1 500 μmol/(m2 · s),which indicate Cathayaargyrophylla Chun et Kuang is the sun plants,and adapting illumination environment is relatively narrow

Key words: Cathayaargyrophylla Chun et, Kuang Photosynthetic rate, Transpiration rate, Light saturation point, Light compensation points

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引用本文

张向峰, 王玉杰, 王云琦, 郭平, 刘春霞, 郑培龙. 银杉的光合特性[J]. 华北农学报, 2011, 26(S2): 75-79. doi: 10.7668/hbnxb.2011.S2.018.

ZHANG Xiang-feng, WANG Yu-jie, WANG Yun-qi, GUO Ping, LIU Chun-xia, ZHENG Pei-long. Characteristics of Photosynthetic and Transpiration of Cathayaargyrophylla Chun et Kuang Leaves[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2011, 26(S2): 75-79. doi: 10.7668/hbnxb.2011.S2.018.

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