岑王老山常绿落叶阔叶混交林主要优势种空间分布格局及种间相关性

doi:10.13292/j.1000-4890.202504.026

生态学杂志 ›› 2025, Vol. 44 ›› Issue (4): 1065-1075.doi: 10.13292/j.1000-4890.202504.026

岑王老山常绿落叶阔叶混交林主要优势种空间分布格局及种间相关性

梁火连¹,陈韬¹,罗应华^1,2,3*,谭翔⁴

（¹广西大学林学院，南宁 530004； ²广西大学林学院，广西森林生态与保育重点实验室，南宁 530004； ³来宾金秀大瑶山森林生态系统广西野外科学观测研究站，广西来宾 546100； ⁴广西岑王老山国家级自然保护区管理中心，广西百色 533000)

出版日期:2025-04-10 发布日期:2025-04-08

Spatial distribution pattern and interspecific correlation of main dominant species of evergreen and deciduous broad-leaved mixed forest in Cenwanglaoshan Mountain.

LIANG Huolian¹, CHEN Tao¹, LUO Yinghua^1,2,3*, TAN Xiang⁴#br#

#br#

(¹College of Forestry, Guangxi University, Nanning 530004, China; ²Guangxi Key Laboratory of Forest Ecology and Conservation, Guangxi University, Nanning 530004, China; ³Laibin Jinxiu Dayaoshan Forest Ecosystems Observation and Research Station of Guangxi, Laibin 546100, Guangxi, China; ⁴Administration of Cenwanglaoshan National Nature Reserve of Guangxi, Baise 533000, Guangxi, China).

Online:2025-04-10 Published:2025-04-08

摘要/Abstract

摘要： 研究物种的空间分布格局和种间相关性动态有助于理解群落发展过程和空间分布格局的构建机制。以岑王老山1 hm²常绿落叶阔叶混交林乔木层10个优势种为研究对象，采用L(r)函数检验群落的空间异质性，采用成对相关函数g(r)的一元模式和二元模式分析了2015年和2022年优势种群的空间分布格局和种间相关性，并对树木死亡模式进行分析。结果表明：（1）群落生境异质性不明显，成树呈现随机分布。（2）以完全空间随机模型为零模型，10个优势种的分布格局呈现聚集分布，并且随着尺度增加逐渐转为随机分布；7年间猴头杜鹃聚集分布尺度增加，其他优势种随机分布尺度增加，但主要分布类型未发生明显变化。（3）以完全空间随机模型为零模型，优势种的种间关系主要表现为无相关和正相关，7年间有33对优势种无相关尺度增加，37对优势种正或负相关尺度减少。（4）7个优势种死树与活树在所有尺度上表现为无相关，3个优势种死树与活树在大部分尺度上表现为无相关。7年间群落优势种之间不存在明显的竞争关系，随机死亡是优势种死树的主要模式，优势种分布格局趋于随机分布，种间关系以无相关和正相关为主，群落的发展已经比较成熟，结构趋于稳定。

关键词: 群落动态, 空间分布格局, 种间相关性, 优势种, 随机死亡

Abstract: The study of species spatial distribution patterns and interspecific correlation dynamics is helpful to understanding community development and the mechanisms underlying spatial distribution. In this study, 10 dominant tree species of a 1 hm² evergreen and deciduous broad-leaved mixed forest in Cenwanglaoshan were used to assess community spatial heterogeneity by the L(r) function. The spatial distribution pattern and interspecific correlation of dominant populations in 2015 and 2022 were analyzed by univariate model and binary model of pairwise correlation function g(r). Moreover, the pattern of tree mortality was analyzed. The results showed that: (1) The community habitats were homogenous, and adult trees showed a random distribution. (2) With the complete spatial randomness model as the null model, 10 dominant species showed aggregated distribution, which gradually changed to random distribution with increasing scale. The aggregate distribution scale of Rhododendron simiarum increased during the 7-year period. The random distribution scale of other dominant species increased, but the main distribution types did not change. (3) With the complete spatial randomness model as the null model, dominant species either showed no interspecific correlation or positive correlation. During the 7-year period, there was an increase in scale of no correlation for 33 pairs of dominant species, while the scale of positive or negative correlation decreased for 37 pairs of dominant species. (4) The dead trees of seven dominant species showed no correlation with living trees at all scales, while the dead trees of other three species showed no correlation with living trees at most scales. In conclusion, there was no competition among the dominant species in the community during the 7-year period. Random death was the main pattern of dominant species. The dominant species tended to be randomly distributed, and the interspecific relationship was mainly non-correlation or positive correlation. The development of the community was relatively mature and the structure tended to be stable.

Key words: community dynamics, spatial distribution pattern, interspecific correlation, dominant species, random death

梁火连, 陈韬, 罗应华, 谭翔. 岑王老山常绿落叶阔叶混交林主要优势种空间分布格局及种间相关性[J]. 生态学杂志, 2025, 44(4): 1065-1075.

LIANG Huolian, CHEN Tao, LUO Yinghua, TAN Xiang. Spatial distribution pattern and interspecific correlation of main dominant species of evergreen and deciduous broad-leaved mixed forest in Cenwanglaoshan Mountain.[J]. Chinese Journal of Ecology, 2025, 44(4): 1065-1075.

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岑王老山常绿落叶阔叶混交林主要优势种空间分布格局及种间相关性

Spatial distribution pattern and interspecific correlation of main dominant species of evergreen and deciduous broad-leaved mixed forest in Cenwanglaoshan Mountain.

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