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[1]张妍 吕倩 刘俊杰 刘江丽 陈雨芩 陈刚 陈小红 范川 李贤伟**.目标树初期经营对马尾松人工林灌草层生态位的影响[J].应用与环境生物学报,2022,28(06):1-10.[doi:10.19675/j.cnki.1006-687x.2021.09055]
 ZHANG Yan,L? Qian,LIU Junjie,et al.Effect of initial management of target tree on niche of shrub and herb layer of Pinus massoniana plantation[J].Chinese Journal of Applied & Environmental Biology,2022,28(06):1-10.[doi:10.19675/j.cnki.1006-687x.2021.09055]
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目标树初期经营对马尾松人工林灌草层生态位的影响()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
28卷
期数:
2022年06期
页码:
1-10
栏目:
研究论文
出版日期:
2022-12-25

文章信息/Info

Title:
Effect of initial management of target tree on niche of shrub and herb layer of Pinus massoniana plantation
作者:
张妍1 吕倩1 刘俊杰1 刘江丽1 陈雨芩1 陈刚12 陈小红12 范川12 李贤伟123**
1四川农业大学林学院 成都 611130
2长江上游森林资源保育与生态安全国家林业与草原局重点实验室 成都 611130
3长江上游林业生态工程四川省重点实验室 成都 611130
Author(s):
ZHANG Yan1 L? Qian 1 LIU Junjie1 LIU Jiangli1 CHEN Yuqin1 CHEN Gang12 CHEN Xiaohong12 FAN Chuan12 & LI Xianwei123**
1 College of Forestry, Sichuan Agricultural University, Chengdu 611130, China
2 Key Laboratory of National Forestry and Grassland Service on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River (Sichuan Agricultural University) , Chengdu 611130, China
3 Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Chengdu 611130, China
关键词:
马尾松人工林目标树密度灌草层生态位宽度生态位重叠
Keywords:
Pinus massoniana target tree density niche breadth niche overlap
DOI:
10.19675/j.cnki.1006-687x.2021.09055
摘要:
目标树经营是近自然森林经营的一项主要措施,研究马尾松人工林灌草层生态位对目标树经营具有指导作用,因而可为可持续经营的马尾松人工林提供参考意见。以华蓥市天池林场36年生马尾松人工林为研究对象,设置3种目标树密度(100、150、200株/hm2),辅之对照林分(CK),分析目标树经营3年后对马尾松人工林林下灌木和草本层生态位宽度和生态位重叠度的影响。研究结果表明:(1)与对照(CK)相比,不同密度目标树经营后的灌草层物种丰富度指数均显著增大;(2)实施3种不同密度的目标树经营后,林下灌草层优势种不同,但优势种之间生态位重叠;(3)目标树经营后灌木层的优势种为樟(Cinnamomum camphora)、枹栎(Quercus serrata)、木姜子(Litsea pungens)、毛桐(Mallotus barbatus);草本层的优势种为皱叶狗尾草(Setaria plicata)、黑足鳞毛蕨(Dryopteris fuscipes)、芒(Miscanthus sinensis)、芒萁(Dicranopteris dichotoma),这些物种占据群落重要地位并能充分利用该生态系统的资源;(4)灌木和草本层的喜阳植物分别占比67.6%和62.5%;而喜阴植物很少,分别占灌木和草本层14.7%和4%;(5)草本层植物生态位宽度和重叠度处于较低水平,不能充分利用资源且彼此竞争不激烈。本研究结果表明马尾松人工林不同目标树经营处理的林下植被生态位和重叠度表现不同,但具有促进群落向更稳定方向发展的作用。(图1表15参50)
Abstract:
Target tree management is a main measure of near-natural forest management . Studies on the niche of shrub and herb layer under the forest can improve the ecosystem service function of Pinus massoniana plantation , which is of great significance to realize the sustainable management of P. massoniana plantation. In th is study, 36-year-old P. massoniana plantation in Tianchi Forest Farm of Huaying City was taken as the research object, and three target tree densities (100, 150, 200 trees/hm2) and the control stand (CK) were set up. The effects of target tree density on the niche breadth and niche overlap of shrub and herb layer under P. massoniana plantation were analyzed after 3 years of target tree management . The results show that: (1) compared with the control (CK), the species richness index of both shrub layer and herb layers increased significantly after target tree management regardless of densit ies; (2) the dominant species of both shrub and grass layer s were different among the three target tree management treatments , but the niche of dominant species overlapped among treatments ; (3) the dominant species in the shrub layer after the target tree management were Cinnamomum camphora, Quercus serrata , Litsea pungens and Mallotus barbatus, while the dominant species in the herb layer were Setaria plicata, Dryopteris fuscipes, Miscanthus sinensis and Dicranopteris dichotoma, which occupied the important position in the community and could make full use of the resources in the ecosystem ; (4) heliophilous plants in shrub and herb layer accounted for 67.6% and 62.5% respectively, while sciophiles plants only accounted for 14.7% and 4% in shrub and herb layer, respectively ; (5) the niche breadth and overlap of herb layer plants were at a low level, which suggested that these plants could not make full use of resources and d id not compete fiercely with each other. Our results show ed that target tree management treatments of P.massoiana plantation at different densities led to diverse changes of the niche and overlap of vegetation, but it could promote the development of the plant community to a more stable direction.

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更新日期/Last Update: 2022-03-16