[1]胡中洋,刘锐之,刘萍*. 不同尺度天山云杉活立木空间结构分析[J].西北林学院学报,2020,35(2):153-159.[doi:10.3969/j.issn.1001-7461.2020.02.23]
　HU Zhong-yang,LIU Rui-zhi,LIU Ping*. Spatial Structure on Picea schrenkiana var.tianschanica Standing Tree at Different Scales[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2020,35(2):153-159.[doi:10.3969/j.issn.1001-7461.2020.02.23]
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 不同尺度天山云杉活立木空间结构分析()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第35卷
期数:
2020年第2期
页码:
153-159
栏目:
出版日期:
2020-03-31

文章信息/Info

Title:
 Spatial Structure on Picea schrenkiana var.tianschanica Standing Tree at Different Scales
文章编号:
1001-7461(2020)02-0153-07
作者:
 胡中洋1; 刘锐之2; 刘萍1*
 (1.华南农业大学 林学与风景园林学院，广东 广州 510642；2.国家林业和草原局 西北调查规划院，陕西 西安 710048)
Author(s):
 HU Zhong-yang1; LIU Rui-zhi2; LIU Ping1*
 (1.College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou 510642,Guangdong,China; 2.National Forestry and Grassland Administration,Northwest Forestry Survey and Planning Institute,Xi’an 710048,Shaanxi,China)
关键词:
 ; 天山云杉; 活立木; 林分空间结构; 一元分布; 二元分布
Keywords:
 ; Picea schrenkiana var.tianschnica;  standing tree;  stand spatial structure;  univariate distribution;  bivariate distribution
分类号:
S757
DOI:
10.3969/j.issn.1001-7461.2020.02.23
文献标志码:
A
摘要:
 以新疆西天山国家级自然保护区天山云杉为研究对象，基于2014年7-8月天山云杉大样地所有胸径(DBH)≥1 cm的活立木胸径、树高、空间位置等调查数据，采用林分空间结构一元分布和二元分布分析方法，通过计算不同尺度天山云杉活立木林分空间结构参数，量化评价天山云杉活立木林分空间结构。结果表明，天山云杉活立木林分空间结构在小尺度上变化较大，当尺度≥80 m×80 m时变化趋于稳定，林分空间分布为随机分布，生长竞争处于中庸状态，不同尺度林分平均胸径变化范围为42.53~45.21 cm，林木个体生长差异小，树种组成以天山云杉占绝对优势，少量伴生其他乔木树种，幼树幼苗少，保护区需要采取抚育间伐和人工促进天然更新技术措施来调整林分空间结构，适当增加天山云杉伴生树种，既有利于提高林分混交度，维持生态系统生物多样性，也有利于天山云杉天然更新，保持生态系统健康稳定发展。
Abstract:
 Taking Picea schrenkiana var.tianschanica occurring in Western Tianshan Natural Reserve as research object,based on the survey data of the large sample plots from July to August in 2014,using the univariate and bivariate distribution parameters of stand spatial structure,the stand spatial structure of the standing trees was quantified and evaluated.The results showed that spatial structure parameters of P.schrenkiana var.tianschanica stand on small scale changed greatly.When the sample size was greater than or equal to 80 m × 80 m,the changes tended to be stable.The stand spatial distribution was random,growth competition was in a moderate state.The average diameter ranged from 42.53 to 45.21 cm in different scales.The individual growth differences were small.The dominant tree was P.schrenkiana var.tianschanica among species composition associated with other rare arbor species,and seedlings and saplings were rare.It was suggested that management measures should be adopted in the reserve,such as tending thinning and artificially stimulating natural regeneration technology to adjust the stand spatial structure,properly increase associated tree species of P.schrenkiana var.tianschanica,which were favorable not only to the improvement of forest mixed degree and the maintenance of the ecosystem biodiversity,also to the natural regeneration of Picea schrenkiana var.tianschanica,and the maintenance of a healthy and stable development of the ecological system.

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备注/Memo

备注/Memo:
 收稿日期：2019-05-31修回日期：2019-08-28
基金项目：林业公益性行业科研专项（200904010）；中央公益型科研院所专项（CAFRIF200716)。
作者简介：胡中洋，男，硕士在读，研究方向：森林可持续经营。E-mail：723702236@qq.com
*通信作者：刘萍，女，博士，教授，研究方向：森林可持续经营。E-mail：bengtiaoliu@126.com
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