[1]黄迪,任毅华*,杨守志.藏东南察隅县针阔混交林乔木树种种群结构特征[J].西北林学院学报,2023,38(5):79-85.[doi:10.3969/j.issn.1001-7461.2023.05.11]
　HUANG Di,REN Yi-hua*,YANG Shou-zhi. Structural Characteristics of Arbor Species in Coniferous and Broad-Leaved Mixed Forest in Chayu County,Southeast Tibet[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2023,38(5):79-85.[doi:10.3969/j.issn.1001-7461.2023.05.11]
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藏东南察隅县针阔混交林乔木树种种群结构特征()
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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5期
页码:
79-85
栏目:
出版日期:
2023-09-30

文章信息/Info

Title:
 Structural Characteristics of Arbor Species in Coniferous and Broad-Leaved Mixed Forest in Chayu County,Southeast Tibet
文章编号:
1001-7461(2023)05-0079-07
作者:
 黄迪1; 2; 3; 4; 5; 任毅华1; 2; 3; 4; 5*; 杨守志1; 2; 3; 4; 5
 1.西藏农牧学院 高原生态研究所，西藏 林芝 860000；2.西藏林芝高山森林生态系统国家野外科学观测研究站，西藏 林芝 860000；3.西藏高原森林生态教育部重点实验室，西藏 林芝 860000；4.西藏高寒植被生态安全重点实验室，西藏 林芝 860000；5.林芝生态监测站，西藏 林芝 860000）
Author(s):
 HUANG Di1; 2; 3; 4; 5; REN Yi-hua1; 2; 3; 4; 5*; YANG Shou-zhi1; 2; 3; 4; 5
 (1.Institute of Tibet Plateau Ecology,Tibet Agricultural and Animal Husbandry University,Nyingchi 860000,Tibet,China; 2.National Forest Ecosystem Observation and Research Station of Tibet,Nyingchi 860000,Tibet,China; 3.Key Laboratory of Forest Ecology in Tibet Plateau,Ministry of Education,Nyingchi 860000,Tibet,China; 4.Key Laboratory of Alpine Vegetation Ecological Security in Tibet,Nyingchi 860000,Tibet,China; 5.Nyingchi Ecological Monitoring Station,Nyingchi 860000,Tibet,China)
关键词:
 ; 径级结构; 静态生命表; 存活曲线; 针阔混交林
Keywords:
 ; diameter class structure;  static life table;  survival curve;  mixed coniferous and broad-leaved forest
分类号:
S718.54
DOI:
10.3969/j.issn.1001-7461.2023.05.11
文献标志码:
A
摘要:
 以藏东南察隅县车因沟天然针阔混交林为对象，采用典型样地法对群落进行调查，从径级结构、静态生命表与生存分析等方面来研究各乔木种群的结构特征，以揭示当地天然针阔混交林的生存现状及发展趋势。结果表明，1）群落中乔木树种主要为察隅冷杉240株、华山松222株、糙皮桦97株，其中，3个种群1~4径级个体数依次占各种群总数量的78%、66%与88%，之后随着径级的增大，各种群数量均呈无规律波动，并缺失较多中大径级林木。2）静态生命表显示，察隅冷杉与糙皮桦的存活曲线趋向于Deevey-Ⅱ型，即不同龄级间的存活率相似；华山松的存活曲线为Deevey-Ⅲ型，说明该种群幼龄阶段存活率较低。3个种群死亡率与消失率曲线均呈现无规律的波浪状态，种群发展状况差。生存分析表明，3个种群均从中龄级开始衰退，龄级结构相对不稳定。建议应进一步加强生境保护，并采取适当的干预措施促进群落内种群稳定发展。
Abstract:
 Taking the natural coniferous and broad-leaved mixed forest in Chayu County,southeast Tibet,as the research object,the community was investigated using the typical sample plot method,and the structural characteristics of each tree population were studied from the aspects of diameter class structure,static life table and survival analysis to reveal the survival status and development trend of the local natural coniferous and broad-leaved mixed forest.The results showed that 1) the main tree species in the community were Abies chayuensis,Pinus armandii and Betula utilis with the number of 240,222,and 97,respectively.Among them,the number of individuals in the 1-4 diameter class of the 3 populations accounted for 78%,66% and 88% of the total number of various populations,respectively.For the diameter classes more than 4,the number of various populations fluctuated irregularly with the increase of the diameter class,and lacking large- and medium-sized trees.2) The static life table showed that the survival curves of A.chayuensis and B.utilis tended to be Deevey-Ⅱ type,i.e.,the survival rates of different age classes were similar.The survival curve of P.armandii was Deevey-Ⅲ type,which indicated that the survival rate of this population at young stage was low.The death rate and disappearance rate curves of the 3 populations showed irregular waves,and the population development was poor.The survival analysis showed that the 3 populations began to decline from the middle age class,and the age class structure was relatively unstable.According to the research results,it is suggested to further strengthen the protection of the habitat and take appropriate intervention measures to promote the stable development of the population in the community.

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备注/Memo

备注/Memo:
 收稿日期：2022-09-21修回日期：2023-01-27
基金项目：中央引导地方项目（XZ202101YD0016C）；西藏高寒植被生态安全重点实验室开放课题（STAQ-2021T-2）。
第一作者：黄迪。研究方向：森林生态学。E-mail:605317885@qq.com
*通信作者：任毅华，博士，副教授。研究方向：森林生态学。E-mail:xz_ryh@163.com
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