New Forests

, Volume 49, Issue 3, pp 329–340 | Cite as

Physiological regulation of poplar species to experimental warming differs between species with contrasting elevation ranges

  • Jian Ren
  • Weiran Dai
  • Chunmeng Yang
  • Xiangli Ma
  • Chris B. Zou


Climate warming has resulted in rapid range shifts of plant species, but it is not well known how species with different natural distribution ranges adapt to increase in temperature through physiological adjustment. We experimentally imposed a 1.8 °C increase of air temperature to the cuttings of two common poplar species Populus yunnanensis and Populus szechuanica naturally growing in southwest China using open-top chambers. Populus yunnanensis is distributed along a narrower elevation range compared with P. szechuanica. We determined some key physiological parameters and plant growth regulator activities during the growing season without soil water limitation. Our results showed that a 1.8 °C increase in air temperature increased shoot growth of P. szechuanica through an extension of its growth period but did not affect the growth of P. yunnanensis. Malondialdehyde content, guaiacol peroxidase activities and abscisic acid content increased while indoleacetic acid content decreased in P. yunnanensis. Our results suggest that the two common poplar species in southwest China should be able to adapt to the moderate increase in temperature projected for future climate. The growth of P. szechuanica may benefit through phenological adjustment but a further increase in temperature may inhibit the growth of P. yunnanensis. For poplar plantation management, selecting species with a wide natural distribution range could provide an adaptive alternative for buffering anthropogenic induced increase in temperature and help in sustaining productivity for the long term.


Global warming Populus spp. Elevation gradient Plant growth regulator Net photosynthetic rate Plantation 



The research was supported by the National Natural Science Foundation of China (No. 31260167). We thank Elaine Stebler and one anonymous reviewer for their insightful suggestions and editorial comments. We thank the financial support of the China Scholarship Council which supported Dr. Ren in data analysis and manuscript preparation at Oklahoma State University, Stillwater, Oklahoma.


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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2017

Authors and Affiliations

  • Jian Ren
    • 1
  • Weiran Dai
    • 1
  • Chunmeng Yang
    • 1
  • Xiangli Ma
    • 1
  • Chris B. Zou
    • 2
    • 3
  1. 1.Department of Grassland SciencesYunnan Agricultural UniversityKunmingChina
  2. 2.Tianjin Key Laboratory of Water Resources and EnvironmentTianjin Normal UniversityTianjinChina
  3. 3.Department of Natural Resource Ecology and ManagementOklahoma State UniversityStillwaterUSA

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