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应用生态学报 ›› 2017, Vol. 28 ›› Issue (5): 1407-1413.doi: 10.13287/j.1001-9332.201705.031

• 目次 •    下一篇

长白山阔叶红松林3个常见树种径向生长的影响因素

蔡礼蓉1,2,3, 匡旭1,2,3, 房帅1,2,3, 原作强1,2, 蔺菲1,2, 叶吉1,2, 郝占庆1,2, 王绪高1,2*   

  1. 1中国科学院沈阳应用生态研究所, 沈阳 110016;
    2中国科学院大学, 北京 100049;
    3中国科学院森林生态与管理重点实验室, 沈阳 110016
  • 收稿日期:2016-09-28 修回日期:2017-02-27 发布日期:2017-05-18
  • 通讯作者: *E-mail: wangxg@iae.ac.cn
  • 作者简介:蔡礼蓉, 女, 1992年生, 硕士研究生. 主要从事森林生态学研究. E-mail: cailirong717@163.com
  • 基金资助:
    本文由国家自然科学基金项目(31370444,31570432,41671050)资助

Factors influencing tree radial growth of three common species in broad-leaved Korean pine mixed forests in Changbai Mountains, China

CAI Li-rong1,2,3, KUANG Xu1,2,3, FANG Shuai1,2,3, YUAN Zuo-qiang1,2, LIN Fei1,2, YE Ji1,2, HAO Zhan-qing1,2, WANG Xu-gao1,2*   

  1. 1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2University of Chinese Academy of Sciences, Beijing 100049, China;
    3Key Laboratory of Forest Ecology and Management, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2016-09-28 Revised:2017-02-27 Published:2017-05-18
  • Contact: *E-mail: wangxg@iae.ac.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (31370444, 31570432, 41671050)

摘要: 为探究树木径向生长的影响因子,基于对长白山阔叶红松林25 hm2样地中3个常见树种红松、紫椴、蒙古栎连续5年的生长环监测数据,分析各树种的季节生长变化,比较树种间的生长速率差异,并分析初始径级、邻体树木竞争、土壤、地形因素等对不同树种径向生长的作用.结果表明: 3个树种径向生长的季节变化趋势一致,树木于5月末开始生长,7月是生长旺盛期,8月底生长开始减缓,于10月中下旬停止生长.3个树种的径向相对生长率存在显著差异,蒙古栎相对径向生长率显著高于红松和紫椴,该差异在小、中径级个体中表现更为显著.3个树种径向生长的主要影响因子不同,邻体树木的竞争显著抑制了红松和蒙古栎的径向生长,而紫椴的径向生长主要受初始径级、土壤和地形等因子的影响.

Abstract: To understand the factors influencing tree radial growth, we analyzed the seasonal dynamics of tree growth of 3 common species (Pinus koraiensis, Tilia amurensis, Quercus mongolica), compared interspecific growth rates and explored the effects of size, neighborhood competition, soil and topography based on five years dendrometer bands monitoring data of the 3 common species in a broad-leaved Korean pine (P. koraiensis) mixed forest plot in Changbai Mountain, Northeast China. The results showed that the growth dynamics of 3 species were consistent. Trees began to grow in late May, thrived in July, grew at declining rates from late August and stopped growing in late October. Annual relative growth rates were significantly different among the species. Q. mongolica tended to grow faster than the other two species, and the differences of growth rates among the 3 species were especially large for small and medium trees. Tree growth rates of P. koraiensis and Q. mongolica were strongly decreased by neighborhood competition, while tree growth rate of T. amurensis was significantly related to tree size, soil and topography.