摘要
【目的】探究森林群落木本植物在演替过程中的空间分布和种间关系,有利于更好地了解森林群落格局形成的生态学过程。【方法】在河南白云山国家森林公园分别设立人工林、择伐林、皆伐林和老龄林4个1 hm^(2)(100 m×100 m)的永久森林动态监测样地,并对4个样地内物种组成和径级结构进行调查。采用点格局g(r)函数单变量分析锐齿槲栎(Quercus aliena var.acutiserrata)及优势针叶树种的空间分布格局变化,g(r)函数双变量分析锐齿槲栎的分布格局变化及锐齿槲栎与优势针叶树种的种间关系变化。【结果】锐齿槲栎的空间分布状况主要呈聚集分布,聚集程度随着演替进程的发生不断减弱,锐齿槲栎与优势针叶树种的种间竞争关系不断减弱。【结论】森林群落木本植物空间分布格局受到显著的生境异质性影响,随着演替的进行,森林群落中物种的空间分布格局逐渐由聚集分布趋于随机分布,不同种群之间的竞争关系逐渐减弱,种间关系逐渐由负相关趋于正相关,群落的生态结构物种组成逐渐稳定。
【Objective】To explore the spatial distribution, interspecific relationship and interaction of woody plants in the succession of forest communities is beneficial to better understand the ecological process of the formation of forest community pattern.【Method】Four permanent forest dynamic monitoring plots of 1 hm^(2)(100 m×100 m) were set up in Baiyun Mountain National Forest Park of Henan province, including plantation forest, twice-cut forest, once-cut forest and old-growth forest, and the species composition and diameter structure of the 4 sample plots were investigated. The change of spatial distribution pattern of Quercus aliena var.acutiserrata and dominant conifer species was analyzed by using point pattern g(r) function, analysis of distribution pattern change of Quercus aliena var. acutiserrata with g(r) function and interspecific relationship between Quercus aliena var. acutiserrata and dominant conifer species. 【Result】The spatial distribution of Quercus aliena var. acutiserrata was mainly aggregated, and the degree of aggregation decreased with the succession process, and the competition between Quercus aliena var. acutiserrata and the dominant coniferous species decreased.【Conclusion】The spatial distribution pattern of woody plants in forest communities was influenced by habitat heterogeneity. With the succession, the spatial distribution pattern of species in forest communities gradually changed from aggregation distribution to random distribution, the competition among different populations gradually weakened, the inter-species relationship gradually changed from negative correlation to positive correlation, and the ecological structure species composition of the community gradually stabilized.
作者
李子豪
孙龙飞
付前进
苏晓
曾曼芸
王晶
叶永忠
袁志良
陈云
LI Zihao;SUN Longfei;FU Qianjin;SU Xiao;ZENG Manyun;WANG Jing;YE Yongzhong;YUANZhiling;CHEN Yun(College of Life Sciences,Henan Agricultural University,Zhengzhou 450002,China;Henan Vocational College of Agriculture Zhengzhou 451450,China;Wumasi Forestry Farm in Songxian,Luoyang,Henan 471400,China;Henan Academy of Forestry Sciences,Zhengzhou 450002,China;Field Scientific Observation and Research Station of Transitional Zone of South and North in the Funiu Mountains in Henan,Zhengzhou 471400,China)
出处
《河南农业大学学报》
CAS
CSCD
2022年第6期947-957,共11页
Journal of Henan Agricultural University
基金
国家自然科学基金项目(U1704115)
河南省林业科学研究院基本科研业务费(2021JB02014)
河南农业大学青年英才项目(111/30500744)
河南省自然科学基金青年基金项目(212300410153)
河南省青年人才托举工程项目(2020HYTP037)。
关键词
白云山国家森林公园
木本植物
演替
锐齿槲栎
空间分布格局
种间关系
Baiyun Mountain National Forest Park
woody plant
succession
Quercus aliena var.acutiserrata
spatial distribution pattern
interspecific relationship
