全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

燕麦叶片光合速率、气孔导度对光强和CO2的响应与模拟

DOI: 10.7668/hbnxb.2009.03.029, PP. 134-137

Keywords: 燕麦,光合作用,气孔导度,光强,CO2浓度

Full-Text   Cite this paper   Add to My Lib

Abstract:

为指导燕麦生产,并了解燕麦在陆地生态系统水-碳循环过程中的作用,用LI-600便携式光合测定仪,人工控制光强和CO2浓度,在锡林郭勒盟对燕麦叶片光合速率、气孔导度进行了研究,结果表明:燕麦叶片光合速率随光强的增强而增大,可以用米氏方程对其进行描述,在自然CO2浓度下,燕麦叶片的潜在最大光合速率为18.63μmol/(m2·s);在饱和光强下,光合速率随CO2浓度的增大而增大,也可以用米氏方程对其进行描述,CO2浓度→∞时,潜在最大光合速率达到110.28μmol/(m2·s);气孔导度随光强的增强而增大,随CO2浓度的增大而减小;气孔限制值随光强的增强而增大,气孔限制值随CO2浓度的增大迅速增大,而[CO2]>200μmol/mol时,气孔限制值基本保持恒定.

References

[1]  于强,谢贤群,孙菽芬,等.植物光合生产力与冠层蒸散模拟研究进展[J].生态学报,1999,19(5):744-753.
[2]  Baldoechi D D.The carbon cycle under stress[J].Nature,2005,437:483-484.
[3]  彭长连.水稻光合作用对加富CO2的响应[J].植物生理学报,1998,24(3):272-278.
[4]  韦彩妙,孔国辉,林植芳,等.提高CO2浓度对两种亚热带树苗叶片水分状况的影响[J].应用生态学报,1997,8(1):12-16.
[5]  杨克理.田长叶.燕麦优质高产栽培技术与综合开发利用问答[M].北京:中国农业科技出版社,2000.
[6]  董祥开,衣莹,刘恩财,等.氮素对燕麦冠层结构及光合特性的影响[J].华北农学报,2008,23(3):133-137.
[7]  金路路,齐华,衣莹,等.CO2浓度增加对燕麦光合特性的影响[J].杂粮作物,2007,27(1):33-36.
[8]  Thomley J H M.植物生理的数学模型[M].北京:科学出版社,1983:107-129.
[9]  Yu G R,Nakayama K,Matsuoka N,et al.A combination model for estimating stomatal conductance of maize(Zea mays L.)leaves over a long term[J].Agricultural and For-est Meteorology,1998,92:9-28.
[10]  Jarvis P J.Theinterpretation of the variations in water poten-tial and stomatal conductance found in canopies in the field[J].Philosphieal Transactions of the Royal Society of Lodon,Series B,1976,273:593-610.
[11]  王建林,于贵瑞,王伯伦,等.北方粳稻光合速率、气孔导度对光强和CO2浓度的响应[J].植物生态学报,2005,29(1):16-25.
[12]  Bent J A,Downton W J S.Enviromnental regtdation of pho-tosynthesis[C]//Govindjee.Photosynthesis,Vol.Ⅱ.New York:Aeademic Press,1982:263-343.
[13]  Seen D L,Chehboani A,Njoku E,et al.An approach to cou-pie vegetation functioning and soil-vegetation-atmosphere transfer models for semiarid grasslands during the HAPEX-Sehel experiment[J].Agricultural and Forest Meteorology,1997,83:49-74.
[14]  Raschke K.Temperature dependence of CO2 assimilation and stomatal aperture interrupfions in leaf sections of Zea Mays[J].Planta,1970,91:336-363.
[15]  Zeiger E.The biology of stomatal guard cells[J].Annual Review of Plant Physiology,1983,34:411~475.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133