[1]余丽慧,姚良锦,徐端妙,等.亚热带针阔混交林优势种黄山松和马褂木的空间格局——以浙江景宁草鱼塘为例[J].江苏林业科技,2021,48(05):20-27.[doi:10.3969/j.issn.1001-7380.2021.05.003]
　Yu Lihui,Yao Liangjin,Xu Duanmiao,et al.Spatial patterns of dominant species Pinus taiwanensis and Liriodendron chinensein a subtropical coniferous and broad-leaved mixed forest——Taking Caoyutang, Jingning, Zhejiang Province as an example[J].Journal of Jiangsu Forestry Science &Technology,2021,48(05):20-27.[doi:10.3969/j.issn.1001-7380.2021.05.003]
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亚热带针阔混交林优势种黄山松和马褂木的空间格局——以浙江景宁草鱼塘为例()
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《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第48卷
期数:
2021年05期
页码:
20-27
栏目:
试验研究
出版日期:
2021-10-31

文章信息/Info

Title:
Spatial patterns of dominant species Pinus taiwanensis and Liriodendron chinensein a subtropical coniferous and broad-leaved mixed forest——Taking Caoyutang, Jingning, Zhejiang Province as an example
文章编号:
1001-7380（2021）05-0020-08
作者:
余丽慧1; 姚良锦2; 3; 徐端妙1; 夏丽敏1; 陈孟广1; 焦洁洁2*
1.浙江景宁县林业总场，浙江 景宁民族自治县 323500；
2. 浙江省林业科学研究院，浙江 杭州 310023；
3. 中国林业科学研究院森林生态环境与保护研究所，国家林业和草原局森林生态环境重点实验室，北京 100091
Author(s):
Yu Lihui1;  Yao Liangjin2; 3;  Xu Duanmiao1;  Xia Limin1;  Chen Mengguan1;  Jiao Jiejie 2*
1. Zhejiang Jingning County Forestry Farm General, Jingning 323500, China;
2. Zhejiang Forestry Academy, Hangzhou 310023, China;
3. Key Laboratory of Forest Ecology and Environment of the State Forestry and Grassland Administration,Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China
关键词:
亚热带; 针阔混交林; 点格局分析; 空间关联性; 生态适应性; 化感作用
Keywords:
Subtropical zone; Coniferous and broad-leaved mixed forest; Point pattern analysis; Spatial association; Ecological adaptability; Allelopathy
分类号:
S718.45；S718.54
DOI:
10.3969/j.issn.1001-7380.2021.05.003
文献标志码:
A
摘要:
基于浙江景宁草鱼塘亚热带针阔混交林动态监测样地（1 hm2）群落的调查数据，采用点格局分析方法等，以径级替代年龄层次，研究样地内优势树种黄山松与马褂木不同年龄段在样地的分布情况和空间关联性。结果显示：(1)黄山松和马褂木种群的径级分布均呈反“J”型。(2)样地中整个黄山松种群主要呈聚集分布，且聚集程度随着种群年龄的增加，表现出相应的减弱趋势。黄山松种群中树、小树在大尺度上显现出随机分布；样地中不同年龄段的马褂木种群均表现出随机分布的趋势。(3)小尺度上，黄山松种群大树对小树、大树对中树出现显著的空间负相关；小尺度上，马褂木种群中树对小树、大树对小树表现为空间正相关。(4)黄山松各径级个体在小尺度上均对马褂木个体呈显著负相关，随着尺度的增加，转变成无显著相关性。小尺度上，马褂木种群中树对黄山松种群小树、中树表现为空间负相关，马褂木大树对黄山松种群中树和大树在任何尺度上表现为无显著相关性。发现针阔混交林优势树种通过密度制约、化感作用和生态适应性对策来形成特定的空间分布格局，实现物种间的共存和竞争作用。
Abstract:
Based on the survey data of 1 hm2 subtropical Coniferous and broad-leaved mixed forest in Caoyutang of Jingning, Zhejiang Province, the spatial distribution patterns of dominant species Pinus taiwanensis and Liriodendron chinense were analyzed at three DBH (diameter at breast height) classes( small trees:1 cm≤DBH＜5 cm; medium trees: 5 cm≤DBH＜10 cm; adult trees: DBH ≥10 cm) by spatial point pattern analysis method. The results indicated that: (1) The stem abundance of both P. taiwanensis and L. chinense within three classes showed inverted “J” type. (2) The population of P. taiwanensis was generally characteristic of aggregated distribution and extent of aggregation reduced gradually with the increase of DBH classes. In the population of P. taiwanensis, small and medium trees showed random distribution at large spatial scale, but the same case for almost all the trees of L. chinense population at any scale. ( 3) At small scale, significant negative spatial associations dominated between different classes (adult trees to both small and medium trees) in P. taiwanensis population while positive associations between different classes (both medium and adult trees to small trees) in L. chinense population.(4) At small scale, different DBH classes of P. taiwanensis showed significant negative associations to each class of L. chinense while negative associations dominated between different classes (L. chinense medium trees to P. taiwanensis both small and medium trees). And At any scale, no significant associations dominated between different classes ( L. chinense adult trees to P. taiwanensis both medium and adult trees).

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备注/Memo

备注/Memo:
收稿日期：2021-09-08;修回日期：2021-09-29
基金项目：浙江省景宁县科技计划项目“珍贵树种失管幼林提质技术研究”（2020A6）
作者简介：余丽慧(1969- )，女，浙江景宁人，工程师，大学本科毕业。主要从事森林培育和林业技术推广工作。E-mail:252091450@qq.com
*通信作者：焦洁洁(1987- )，女，浙江嘉善人，助理研究员，硕士。主要从事森林生态和森林经营工作。E-mail:705241632@qq.com
更新日期/Last Update: 2021-12-02