摘要
为探讨河南白云山国家森林公园林木树种群落特征及地形因子对木本植物分布的影响,在该区域建立1 hm2永久动态监测样地,调查统计该区域木本植物类群的物种组成,分析木本植物径级结构的特征,采用空间点格局g(r)函数分析优势种的空间分布格局,通过冗余分析(redundancy analysis,RDA)探究地形因子与木本植物分布的关联性。结果表明,本次研究共调查到木本植物16科25属34种,共计2306株,以蔷薇科(Rosaceae)、壳斗科(Fagaceae)、马鞭草科(Verbenaceae)为主。栓皮栎(Quercus variabilis)、黄连木(Pistacia chinensis)、栗(Castanea mollissima)、牡荆(Vitex negundo var.cannabifolia)是该样地的优势种,其中,栓皮栎的生活能力较强,是最具有竞争优势的物种。样地内木本植物径级结构的分布呈典型的倒“J”型,表明该地区植物群落更新状况良好,处于稳定生长阶段。样地中优势种的空间分布格局在整个尺度范围内表现为聚集和随机分布,与地形生境异质性和物种自身的生物学特性有关。RDA结果表明,海拔是影响白云山国家森林公园植物群落结构特征的重要因素。
In order to explore the influence of tree species community characteristics and topographic factors on woody plants distribution in Baiyun Mountain National Forest Park in Henan,a permanent dynamic monitoring plot of 1 hm2 was established in the core protected area of Baiyun Mountain.The species composition of woody plants in the region was investigated,and the characteristics of diameter structure of woody plants were analyzed;the spatial distribution pattern of dominant species was studied by using spatial point pattern g(r)function;the correlation between topographic factors and woody plants distribution by Redundancy Analysis(RDA)was analyzed.The results show that a lot of 2306 woody plants were investgated in the Baiyun Mountain,with 34 species belonging to 25 genera and 16 families,mainly composed of Rosaceae,Fagaceae and Verbenaceae.Quercus variabilis,Pistacia chinensis,Castanea mollissima and Vitex negundo var.cannabifolia are dominant species of the community.Among them,Quercus variabilis with stronger living ability was the most competitive species in the plot.The distribution of diameter class structure of woody plants in the sample plot showed a typical inverted“J”shape,indicating that the community is in a stable and normal growth status.The spatial distribution pattern of the dominant species in the plots is characterized by aggregation and random distribution in all scale,which is mainly caused by the difference of topographical habitat heterogeneity and biological characteristics of the species.RDA showed that elevation is an important factor affecting the structural characteristics of forest communities in Baiyun Mountain National Forest Park.
作者
周紫羽
张秀艳
李子豪
王晶
史鹏会
陈云
赵鹏飞
袁志良
ZHOU Ziyu;ZHANG Xiuyan;LI Zihao;WANG Jing;SHI Penghui;CHEN Yun;ZHAO Pengfei;YUAN Zhiliang(College of Life Sciences,Henan Agricultural University,Zhengzhou 450002,China;Geological Engineering and Resource Survey Department,Henan Vocational College of Geology and Mining,Zhengzhou 450000,China;Henan Academy of Forestry Sciences,Zhengzhou 450002,China;Field Observation and Research Station of Forest Ecosystem in the North-south Transition Zone of Funiu Mountain,Luoyang 471400,China;Henan Geological Survey Institute,Zhengzhou 450001,China)
出处
《河南农业大学学报》
CSCD
2021年第4期666-673,共8页
Journal of Henan Agricultural University
基金
国家自然科学基金面上项目(31371543)
河南省自然科学基金青年基金项目(212300410153)
河南省基本科研业务费资助项目(2021JB02014)
黄河流域(河南段)生态地质调查方法研究项目(豫地环[2021]1号)。
关键词
白云山国家森林公园
优势种
群落结构
径级结构
空间分布格局
地形因子
Baiyun Mountain National Forest Park
dominant species
community structure
size structure
spatial distribution pattern
topographic factors
