植物生态学报 ›› 2026, Vol. 50 ›› Issue (4): 833-845.DOI: 10.17521/cjpe.2025.0365  cstr: 32100.14.cjpe.2025.0365

• 研究论文 • 上一篇    下一篇

东北阔叶红松林不同演替阶段树种分布与空间关联格局

王子平1,2,3, 毛子昆1,2, 贺涵1,2,3, 姜鹏程1,2,3, 闫瑞环1,2,3, 王绪高1,2,*()   

  1. 1 中国科学院沈阳应用生态研究所森林生态与保育重点实验室, 沈阳 110016
    2 辽宁省陆地生态系统碳中和重点实验室, 沈阳 110016
    3 中国科学院大学, 北京 100049
  • 收稿日期:2025-10-11 接受日期:2026-01-21 出版日期:2026-04-20 发布日期:2026-07-15
  • 通讯作者: *王绪高(wangxg@iae.ac.cn)
  • 基金资助:
    国家重点研发计划(2022YFF1300501);国家自然科学基金(32525041);国家自然科学基金(32301344);辽宁省“兴辽英才计划”项目(XLYC2402003)

Spatial distribution and association patterns of tree species across successional stages in broadleaf Korean pine forests of Northeast China

WANG Zi-Ping1,2,3, MAO Zi-Kun1,2, HE Han1,2,3, JIANG Peng-Cheng1,2,3, YAN Rui-Huan1,2,3, WANG Xu-Gao1,2,*()   

  1. 1 Key Laboratory of Forest Ecology and Silviculture, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
    2 Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning Province, Shenyang 110016, China
    3 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2025-10-11 Accepted:2026-01-21 Online:2026-04-20 Published:2026-07-15
  • Contact: *WANG Xu-Gao(wangxg@iae.ac.cn)
  • Supported by:
    National Key R&D Program of China(2022YFF1300501);National Natural Science Foundation of China(32525041);National Natural Science Foundation of China(32301344);Liaoning Revitalization Talents Program(XLYC2402003)

摘要: 阔叶红松(Pinus koraiensis)林是东北东部地区地带性顶极植物类型, 长期以来受到人类活动的强烈干扰, 大面积原生阔叶红松林退化为次生杨桦林, 但目前相关的系统对比研究仍然不足, 限制了对阔叶红松林自然恢复过程的深入理解。该研究基于长白山24 hm2固定森林监测样地, 利用成对相关函数g(r)和异质性泊松分布零模型, 对比分析了样地北部次生杨桦林(演替前期, 15.6 hm2)与南部阔叶红松林(演替后期, 8.4 hm2)的树种分布和空间关联格局。结果发现: (1)两种林型中大多数树种的空间分布具有尺度依赖性, 即在小尺度(0-10 m)上呈聚集分布, 在较大尺度(>20 m)趋于随机分布, 胸径(DBH) < 10 cm的小径级个体和中径级个体(10 cm ≤ DBH < 30 cm)的聚集程度均高于大径级个体(DBH ≥ 30 cm); 次生杨桦林的大径级个体普遍呈随机分布, 而阔叶红松林的大径级个体在0-10 m仍以聚集分布为主。(2)两种林型中树种空间关联以不相关为主; 大径级个体的空间负关联比例均高于小径级个体, 大径级个体对中径级个体存在明显抑制作用, 而其对小径级个体的作用具有较大变异性。(3)作为核心建群种的红松, 在两种林型中均呈现出聚集分布, 红松大树在阔叶红松林的聚集程度较低, 且与白桦(Betula platyphylla)、山杨(Populus davidiana)等先锋树种的种间关系表现为负关联, 而红松小树与白桦、山杨等显著正关联, 表明这些先锋树种对红松小树具有促进作用, 但是随着森林演替先锋树种逐渐受到抑制并退出群落。综上, 阔叶红松林和次生杨桦林的树种分布与空间关联格局大体一致, 但关键建群种存在明显差异。

关键词: 空间分布, 空间关联, 点格局分析, 阔叶红松林, 次生杨桦林

Abstract:

Aims The broadleaf Korean pine (Pinus koraiensis) mixed forest, represents the zonal climax vegetation in eastern Northeast China. Long-term human disturbances have led to widespread degradation of primary forests into secondary poplar-birch forests. However, systematic comparative studies between these two forest types remain insufficient, limiting our understanding of the natural recovery process of broadleaf Korean pine mixed forests.

Methods Based on a 24 hm2 permanent forest dynamics plot in Changbai Mountains, we applied the paired correlation function g(r) combined with the heterogeneous Poisson null model to compare the spatial distribution and interspecific association patterns of tree species between the northern secondary poplar-birch forest (early successional stage, 15.6 hm2) and the southern broadleaf Korean pine mixed forest (late successional stage, 8.4 hm2).

Important findings (1) Most tree species in both forest types exhibited scale-dependent spatial patterns, characterized by aggregation at small scales (0-10 m) and random distribution at larger scales (>20 m). Small individuals with a diameter at breast height (DBH) below 10 cm and medium-sized individuals (10 cm ≤ DBH <  30 cm) generally showed stronger aggregation than large individuals (DBH ≥  30 cm). Large individuals in the secondary poplar-birch forest were mostly randomly distributed, whereas those in the broadleaf Korean pine forest remained aggregated at small scales (0-10 m). (2) Interspecific spatial associations were predominantly random in both forest types. Large individuals exhibited a higher proportion of negative interspecific associations than small ones. Large individuals exerted strong suppressive effects on medium-sized individuals, while their effects on small individuals were more variable. (3) As a key foundation species, Pinus koraiensis exhibited aggregated distribution patterns in both forest types, although its aggregation intensity was lower in the broadleaf Korean pine mixed forest. Large Pinus koraiensis individuals showed negative spatial associations with pioneer species such as Betula platyphylla and Populus davidiana in the late successional forest, whereas small Pinus koraiensis individuals displayed significant positive associations with these pioneers species in the secondary poplar-birch forest. These findings indicate that pioneer species facilitate the establishment of Pinus koraiensis at early successional stages but become progressively suppressed and are eventually excluded as forest succession proceeds. Overall, the two forest types exhibited broadly similar species distribution and interspecific association patterns, whereas pronounced differences were observed for key foundation species, such as Pinus koraiensis. These results enhance our understanding of the natural recovery process of the broadleaf Korean pine mixed forest and provide valuable insights for forest management and restoration of temperate forests of Northeast China.

Key words: spatial distribution, spatial association, spatial point pattern analysis, broadleaf Korean pine forest, secondary poplar-birch forest