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不同水分条件下胡杨光响应曲线拟合模型比较

周多多, 蒋少伟, 吴桂林, 李君

周多多, 蒋少伟, 吴桂林, 李君. 不同水分条件下胡杨光响应曲线拟合模型比较[J]. 植物科学学报, 2017, 35(3): 406-412. DOI: 10.11913/PSJ.2095-0837.2017.30406
引用本文: 周多多, 蒋少伟, 吴桂林, 李君. 不同水分条件下胡杨光响应曲线拟合模型比较[J]. 植物科学学报, 2017, 35(3): 406-412. DOI: 10.11913/PSJ.2095-0837.2017.30406
Zhou Duo-Duo, Jiang Shao-Wei, Wu Gui-Lin, Li Jun. Comparison of light response models of photosynthesis in Populus euphratica Oliv.grown under contrasting groundwater conditions[J]. Plant Science Journal, 2017, 35(3): 406-412. DOI: 10.11913/PSJ.2095-0837.2017.30406
Citation: Zhou Duo-Duo, Jiang Shao-Wei, Wu Gui-Lin, Li Jun. Comparison of light response models of photosynthesis in Populus euphratica Oliv.grown under contrasting groundwater conditions[J]. Plant Science Journal, 2017, 35(3): 406-412. DOI: 10.11913/PSJ.2095-0837.2017.30406
周多多, 蒋少伟, 吴桂林, 李君. 不同水分条件下胡杨光响应曲线拟合模型比较[J]. 植物科学学报, 2017, 35(3): 406-412. CSTR: 32231.14.PSJ.2095-0837.2017.30406
引用本文: 周多多, 蒋少伟, 吴桂林, 李君. 不同水分条件下胡杨光响应曲线拟合模型比较[J]. 植物科学学报, 2017, 35(3): 406-412. CSTR: 32231.14.PSJ.2095-0837.2017.30406
Zhou Duo-Duo, Jiang Shao-Wei, Wu Gui-Lin, Li Jun. Comparison of light response models of photosynthesis in Populus euphratica Oliv.grown under contrasting groundwater conditions[J]. Plant Science Journal, 2017, 35(3): 406-412. CSTR: 32231.14.PSJ.2095-0837.2017.30406
Citation: Zhou Duo-Duo, Jiang Shao-Wei, Wu Gui-Lin, Li Jun. Comparison of light response models of photosynthesis in Populus euphratica Oliv.grown under contrasting groundwater conditions[J]. Plant Science Journal, 2017, 35(3): 406-412. CSTR: 32231.14.PSJ.2095-0837.2017.30406

不同水分条件下胡杨光响应曲线拟合模型比较

基金项目: 

国家重点基础研究发展计划(973计划)项目(2013CB429903);国家自然科学基金项目(41171037,U1403281)

详细信息
    作者简介:

    周多多(1991-),女,江西人,硕士研究生,主要从事植物生理生态学研究(E-mail:785294040@qq.com)

    通讯作者:

    李君,E-mail:lijun@ms.xjb.ac.cn

  • 中图分类号: Q945

Comparison of light response models of photosynthesis in Populus euphratica Oliv.grown under contrasting groundwater conditions

Funds: 

This work was supported by grants from the National 973 Project (2013CB429903) and National Natural Science Fund (41171037,U1403281).

  • 摘要: 本研究通过测量不同水分条件下胡杨(Populus euphratica Oliv.)叶片的光响应曲线,并采用4种光响应模型对其光合特征参数拟合值与实测值进行比较,分析了不同水分条件下光响应曲线模型对胡杨适用性的影响机制。结果表明,当水分供应充足时,胡杨非直角双曲线模型对暗呼吸速率(Rd)的拟合效果最优,直角双曲线修正模型拟合光饱和点(LSP)、最大净光合速率(Pnmax)、光补偿点(LCP)的结果与实测值较接近;但当胡杨受到水分亏缺后,直角双曲线修正模型对Pnmax和光饱和点(LSP)的拟合效果最优,直角双曲线模型对RdLCP的拟合效果最佳。因此,水分条件有利时胡杨应用直角双曲线修正模型、非直角双曲线模型较好;水分亏缺条件下采用直角双曲线修正模型、直角双曲线模型更为适合。
    Abstract: We measured the light response curves of Populus euphratica grown under contrasting experimental groundwater conditions.We assessed the applicability of the light response models for P.euphratica under different groundwater conditions by comparing fitted photosynthetic characteristic parameters with measured values using four classic models.Results showed that the LSP,Pnmax,and LCP parameters under well-watered conditions were best fit by the modified rectangular hyperbola model,whereas Rd was better estimated by the non-rectangular hyperbola model.For P.euphratica under water deficit conditions,the rectangular hyperbola model exhibited better estimation for R d and LCP,whereas the modified rectangular hyperbola model was more suitable for estimating Pnmax and LSP.Overall,our results suggest that when considering model choice for estimating the light response parameters of P.euphratica,the modified rectangular hyperbola model and non-rectangular hyperbola model are applicable for plants grown under benign water environments,but the modified rectangular hyperbola model and rectangular hyperbola model are preferable for those under water deficit environments.This study helps clarifying the light response processes of P.euphratica under different moisture conditions and provides a theoretical basis for photosynthetic characteristics.
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出版历程
  • 收稿日期:  2016-10-11
  • 网络出版日期:  2022-10-31
  • 发布日期:  2017-06-27

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