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生态学杂志 ›› 2003, Vol. ›› Issue (6): 117-120.

• 研究简报 • 上一篇    下一篇

CO2和O3浓度倍增及其复合作用对大豆叶绿素含量的影响

赵天宏1, 史奕1, 王春乙2, 黄国宏1   

  1. 1. 中国科学院沈阳应用生态研究所陆地生态过程重点实验室, 沈阳, 110016;
    2. 中国气象科学院, 北京, 10081
  • 收稿日期:2003-04-03 修回日期:2003-05-20 出版日期:2003-12-10
  • 基金资助:
    国家自然科学基金(40271111);中国科学院沈阳应用生态研究所创新资助项目(SCXMS0302)

Effect of doubled CO2, and O3 on chlorophyll content of soybean

ZHAO Tianhong1, SHI Yi1, WANG Chunyi2, HUANG Guohong1   

  1. 1. Kay Laboratory of Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Chinese Academy of Meteorological Sciences, Beijing 100081, China
  • Received:2003-04-03 Revised:2003-05-20 Online:2003-12-10

摘要: 利用开顶箱(OTC)法研究了在CO2和O3浓度倍增及其复合作用下,大豆叶片叶绿素含量及叶绿素a/b值的变化规律.结果表明,不同生育时期大豆叶片中叶绿素含量不同,Chla、Chlb和ChlT都表现出低-高-低的趋势,而且不同处理间变化不同步.不同处理间比较,O3处理的植株叶绿素含量下降最为明显,其次是复合处理的影响,而CO2浓度倍增对提高叶片叶绿素含量有一定的作用.Chla/b呈下降趋势,受CO2倍增影响最明显,有利于提高作物的光合性能.

关键词: 小麦, 铵态氮, 硝态氮

Abstract: Variation of chlorophyll content and chla/b in leaves of soybean under doubled CO2 concentration and O3 concentration as well as their interactive effect were studied in open-top champers(OTC). The results showed that there were differences in chlorophyll content in leaves of soybean during different growth periods. The trends of low-high-low of chla, chlb, and chlT were observed. Variations among different treatments showed that the most obvious decrease of chlorophyll content was under O3 treatment and the next was interactive effect, while doubled CO2 concentration took some function to increase chlorophyll content. Chla/b decreased, most obviously under doubled CO2. This would be helpful to improve the capacity of photosynthesis of crops.

Key words: wheat, NO3--N, NH4+-N.

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