[1]刘宪钊,李卫珍,王金龙,等.两种不同起源华北落叶松林空间点格局及植物多样性[J].南京林业大学学报(自然科学版),2017,41(06):102-108.[doi:10.3969/j.issn.1000-2006.201609022]
 LIU Xianzhao,LI Weizhen,WANG Jinlong,et al.Spatial distributions and species diversity of two types of Larix principis-rupprechtii[J].Journal of Nanjing Forestry University(Natural Science Edition),2017,41(06):102-108.[doi:10.3969/j.issn.1000-2006.201609022]
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两种不同起源华北落叶松林空间点格局及植物多样性
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
41
期数:
2017年06期
页码:
102-108
栏目:
研究论文
出版日期:
2017-11-30

文章信息/Info

Title:
Spatial distributions and species diversity of two types of Larix principis-rupprechtii
文章编号:
1000-2006(2017)06-0102-07
作者:
刘宪钊1李卫珍2王金龙2陆元昌1谢阳生1
1.中国林业科学研究院资源信息研究所, 北京 100091; 2.山西省黑茶山国有林管理局南阳山林场, 山西 岚县 033500
Author(s):
LIU Xianzhao1 LI Weizhen2 WANG Jinlong2 LU Yuanchang1 XIE Yangsheng1
1. Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China; 2. Nanyang Mountain Forest Farm, Heicha Mountain National Forest Authority,Lanxian 033500, China
关键词:
华北落叶松 点格局 种-面积关系模型 植物多样性 黑茶山
Keywords:
Keywords:Larix principis-rupprechtii point pattern species-area relationship model species diversity Heicha Mountain
分类号:
S718.54
DOI:
10.3969/j.issn.1000-2006.201609022
文献标志码:
A
摘要:
【目的】分析山西省黑茶山国家级自然保护区两种不同起源类型落叶松人工林和天然林径级和林层特征,并对落叶松种群空间分布点格局特征和种群对邻域物种多样性的影响效应进行研究。【方法】 采用g(r)函数点格局方法对优势种群落叶松不同生长阶段个体(小树、中树和大树)的空间分布点格局进行研究; 用单物种-面积关系模型(mISAR模型)分析样地中乔木树种对局域群落多样性的影响。【结果】两种不同起源的落叶松林内落叶松种群呈正态分布,根据林木胸径(DBH)将落叶松分为小(5 cm≤DBH<10 cm)、中(10 cm≤DBH<30 cm)、大(DBH≥30 cm)3个阶段。人工林和天然林小、中、大3个不同阶段的株数比分别为10:3:4和10:3:6,树种多样性分别为0.96、0.54、0.52和1.27、0.94、0.63。两种起源落叶松林空间点格局分布总体均表现为小尺度上的聚集分布和中大尺度上的随机分布。此外,两种起源的落叶松林内物种在调查尺度范围内均表现为单物种所有个体对邻域全部树种的丰富度起到促进作用。【结论】研究区长期的干扰使两种起源类型的落叶松林具有较为相似的水平结构和垂直结构,中径级林木个体多但小径级和大径级较少,种群难以实现世代交替。
Abstract:
【Objective】Based on investigation data on two types of Larix principis-rupprechtii native to the Heicha Mountain, Shanxi Province, China,diameter and canopy structure of forests with the two types,spatial distribution of L. principis-rupprechtii,and the effects of individual species on surrounding biodiversity were analyzed. 【Method】Spatial point patterns were analyzed based on the g(r) function. The individual species-area relationship(mISAR)was used to evaluate the effects of individual species on surrounding biodiversity at different spatial scales.【Result】The diameter structure of plantation and natural L.rupprechtii exhibited a unimodal distribution, the number ratios of the plants in small(5 cm≤DBH<10 cm), middle(10 cm≤DBH<30 cm),and big(DBH≥30 cm)stages were 10:3:4 and 10:3:6 respectively, and the values of species diversity were 0.96, 0.54 and 0.52, and 1.27, 0.94 and 0.63. All trees exhibited clustered distribution across a small range and random distribution with increase in spatial scale. Moreover, all tree species acted as diversity accumulators at all studied spatial scales in the forests with the two types.【Conclusion】The horizontal and vertical structure of the two types were the same for long-term continuous disturbance. Middle-aged trees were more frequent, while the number of young and old trees was less,indicating that this population could not achieve metagenesis by itself.

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备注/Memo

备注/Memo:
基金项目:国家重点研发计划(2017YFD0600403); 林业科技推广示范项目([2014]07号) 第一作者:刘宪钊(lxz9179@163.com),副研究员。*通信作者:E-mail: ××。
更新日期/Last Update: 1900-01-01