[1]韩艳英,盛基峰,李垚,等. 西藏原始林芝云杉林空间结构参数分布特征[J].西北林学院学报,2023,38(1):146-152.[doi:10.3969/j.issn.1001-7461.2023.01.20]
　HAN Yan-ying,SHENG Ji-feng,LI Yao,et al. Spatial Distribution Characteristics of Original Picea likiangensis var.linzhiensis Forest in Tibet[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2023,38(1):146-152.[doi:10.3969/j.issn.1001-7461.2023.01.20]
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 西藏原始林芝云杉林空间结构参数分布特征()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第38卷
期数:
2023年第1期
页码:
146-152
栏目:
出版日期:
2023-01-31

文章信息/Info

Title:
 Spatial Distribution Characteristics of Original Picea likiangensis var.linzhiensis Forest in Tibet
文章编号:
1001-7461(2023)01-0146-07
作者:
 韩艳英1; 2; 盛基峰3; 李垚1; 大布穷1; 叶彦辉1; 2*
 （1.西藏农牧学院 资源与环境学院，西藏 林芝 860000；2.西藏高原森林生态教育部重点实验室，西藏 林芝 860000；3.西藏农牧学院 高原生态研究所，西藏 林芝 860000）
Author(s):
 HAN Yan-ying1; 2; SHENG Ji-feng3; LI Yao1; DA Bu-qiong1; YE Yan-hui1; 2*
 (1.Resources & Environment College,Tibet Agriculture & Animal Husbandry University,Nyingchi 860000,Tibet,China; 2.Key Lab of Forestry Ecology in Tibet Plateau,Ministry of Education/Tibet Agricultural & Animal Husbandry University,Nyingchi 860000,Tibet,China; 3.Research Institute of Tibet Plateau Ecology,Tibet Agriculture & Animal Husbandry University,Nyingchi 860000,Tibet,China)
关键词:
 ; 林芝云杉; 空间结构; 角尺度; 混交度; 三元分布
Keywords:
Picea likiangensis var.linzhiensis;  spatial structure;  uniform angle index;  mingling degree;  ternary distribution
分类号:
S791.18
DOI:
10.3969/j.issn.1001-7461.2023.01.20
文献标志码:
A
摘要:
 以藏东南波密岗乡自然保护区原始林芝云杉林为研究对象，应用空间结构参数角尺度、混交度和大小比数，建立空间结构参数的三元分布，揭示林分的空间结构特征。结果表明，从一元分布看，林木整体属于随机分布，林分强度混交，树种的优劣程度参差不齐，整体处于中庸状态；在混交度和角尺度分布中，以随机分布和强度混交林木株数最多，大小比-角尺度组合中，均以随机分布轴线和中庸轴线两侧基本对称；三元结构参数组合为强度混交、随机分布、亚优势状态林木分布较多。主要树种的混交程度较高，呈现强度和极强度混交状态；其中林芝云杉和华山松为该群落的优势树种随机分布，其他主要树种都为轻度聚集分布；树种间大小比数差异明显，其中林芝云杉最低，<0.252，处于亚优势状态。全面分析原始林芝云杉林的空间结构，为林芝云杉林结构优化调整提供重要参考，为藏东南天然林可持续发展提供科学依据。
Abstract:
 The original Picea likiangensis var.linzhiensis forest in Bomi Township Nature Reserve,southeast Tibet,was used as the research object.Using stand spatial structure parameters (mingling degree,uniform angle index and size ratio),the ternary distribution of stand spatial structure parameters was established to describe the spatial structure characteristics of the whole stand and the spatial structure characteristics of the main tree species in the stand.The results showed that from the univariate distribution,the trees on the sample plots were randomly distributed in general,and the stand was in a state of intensive mixing.The dominance index of tree species was uneven,which was reflected by the different proportions of different tree species,and the whole stand was in a moderate growth state.In the distribution of mixed degree and angular scale,the number of trees mixed with random distribution and intensity was the largest.In the binary distribution structure of size ratio and uniform angle index,stand was basically symmetrical in random distribution and medium growth dimension.When the ternary structure parameters were combined into moderate strength mixing,random distribution and sub-dominant state,the tree distribution was larger.The main tree species in P.likiangensis var.linzhiensis forest had a high degree of mingling,showing a strong and extremely strong mingling state.Among them,P.likiangensis var.linzhiensis and Pinus armandii were the dominant tree species in the community,which belonged to random distribution,and other main tree species were in mild aggregated distribution.There were obvious differences in the size ratio of tree species,among which P.likiangensis var.linzhiensisis was in the subdominant state with the lowest value of 0.252.A comprehensive analysis of the spatial structure of the original P.likiangensis var.linzhiensis forest can provide important reference information for the structural optimization and adjustment of P.likiangensis var.linzhiensis forest,and provide scientific basis for the sustainable development of natural forests in Southeast Tibet.

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备注/Memo

备注/Memo:
 收稿日期：2021-11-17修回日期：2022-04-22
基金项目：西藏农牧学院林学学科创新团队建设（藏财预指2020-001）；国家自然科学基金（31460122）；西藏农牧学院林业工程重点实验室；西藏农牧学院2022年教改项目。
第一作者：韩艳英。研究方向：亚高山天然林经营。E-mail：1064336015@qq.com
*通信作者：叶彦辉，博士。研究方向：植被恢复。E-mail:260383872@qq.com
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