Chin J Plant Ecol ›› 2024, Vol. 48 ›› Issue (8): 1011-1020.DOI: 10.17521/cjpe.2023.0231  cstr: 32100.14.cjpe.2023.0231

• Research Articles • Previous Articles     Next Articles

Radial growth response of natural Fraxinus mandshurica to climate in the Changbai Mountains

LI Shi-Jie1,2, WANG Li2, DU Ying-Jun2, ZHENG Lei3, ZENG Fan-Suo1,4, XIN Ying1,2,*()   

  1. 1State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, China
    2School of Forestry, Northeast Forestry University, Harbin 150040, China
    3Urban Operation Service Center of Benxi City, Benxi, Liaoning 117099, China
    4College of Life Science, Northeast Forestry University, Harbin 150040, China
  • Received:2023-08-11 Accepted:2024-04-08 Online:2024-08-20 Published:2024-04-09
  • Contact: *XIN Ying(xinying2004@126.com)
  • Supported by:
    National Key R&D Program of China(2021YFD2200303);Fundamental Research Funds for Central Universities(2572021DT06)

Abstract:

Aims To explore the relationship between the radial growth of natural Fraxinus mandshurica and climate factors in the Changbai Mountains, the response of natural F. mandshurica radial growth to climate factors was studied, which would further identify the main meteorological factors limiting the growth of F. mandshurica.

Methods Natural F. mandshurica in Hongshi, Qingyuan, Huanren, and Ji’an were selected. The dendrochronological method was used to establish the standard chronology to study the relationship between radial growth and climate factors.

Important findings The tree ring width index of four provenances was lower from 1960 to 1980, and these data had different trends and fluctuation characteristics. The correlation of four standard chronologies of F. mandshurica was extremely significant. The radial growth of F. mandshurica at these four provenances had strong regional consistency. Temperature, especially lowest air temperature in winter and early growing season, was the main limiting factor for the radial growth of natural F. mandshuricain Hongshi, Qingyuan, Huanren and Ji’an. Meanwhile, the water condition in non-growing season also had an important effect on the radial growth of F. mandshurica in the following year. The variance decomposition analysis further confirmed the limiting effect of temperature, especially lowest air temperature, on the radial growth of F. mandshurica from four provenances in the Changbai Mountains. In the context of global climate change, the F. mandshurica from Ji’an was more stable in responding to climate change. It’s an excellent germplasm resource of F. mandshurica.

Key words: Fraxinus mandshurica, Changbai Mountains, radial growth, climate response, provenance, variance decomposition