植物生态学报 ›› 2024, Vol. 48 ›› Issue (8): 1011-1020.DOI: 10.17521/cjpe.2023.0231  cstr: 32100.14.cjpe.2023.0231

• 研究论文 • 上一篇    下一篇

长白山天然水曲柳径向生长对气候的响应

李士杰1,2, 王丽2, 杜英军2, 郑磊3, 曾凡锁1,4, 辛颖1,2,*()   

  1. 1林木遗传育种全国重点实验室(东北林业大学), 哈尔滨 150040
    2东北林业大学林学院, 哈尔滨 150040
    3辽宁省本溪市城市运行服务中心, 辽宁本溪 117099
    4东北林业大学生命科学学院, 哈尔滨 150040
  • 收稿日期:2023-08-11 接受日期:2024-04-08 出版日期:2024-08-20 发布日期:2024-04-09
  • 通讯作者: *辛颖(xinying2004@126.com)
  • 基金资助:
    国家重点研发计划(2021YFD2200303);中央高校基本科研业务费(2572021DT06)

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)

摘要:

为了探究长白山天然水曲柳(Fraxinus mandshurica)径向生长与气候因子的关系, 探寻限制水曲柳生长的主要气象因子, 以红石、清原、桓仁和集安4个种源地的天然水曲柳为研究对象, 运用树木年代学方法, 研究天然水曲柳径向生长差异及其对气候因子的响应。结果表明: 4个种源地水曲柳在1960-1980年的轮宽指数都较低, 具有不同的变化趋势和波动特征。4个种源地水曲柳标准年表的相关性都达到了极显著水平, 这4个种源地水曲柳的径向生长具有较强的区域一致性。温度, 特别是生长季初期最低气温是红石、清原、桓仁和集安天然水曲柳径向生长的主要限制因子, 非生长季的水分状况也对来年水曲柳的径向生长有着重要影响, 而且长白山北麓水曲柳对气候的敏感性高于南麓和西南麓。方差分解分析也进一步印证了温度尤其是最低气温对长白山水曲柳径向生长的限制作用。在全球气候变化的背景下, 长白山集安水曲柳应对气候变化更加稳定, 是优良的水曲柳种质资源。

关键词: 水曲柳, 长白山, 径向生长, 气候响应, 种源, 方差分解

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