Population structure and dynamic characteristics of three endemic Chinese Abies species in southeastern Tibet, China

IntroductionIn the face of escalating climate change, conserving fir forests in southeastern Tibet is paramount. These forests uphold Tibetan biodiversity and support crucial ecological services.MethodsThis study used the typical plot method to investigate the survival status and development trends...

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Main Authors: Di Huang, Yihua Ren, Shouzhi Yang, Yingxia Zhao, Guoqing Zhao
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-12-01
Series:Frontiers in Ecology and Evolution
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fevo.2024.1487984/full
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author Di Huang
Di Huang
Di Huang
Di Huang
Di Huang
Yihua Ren
Yihua Ren
Yihua Ren
Yihua Ren
Yihua Ren
Shouzhi Yang
Shouzhi Yang
Shouzhi Yang
Shouzhi Yang
Shouzhi Yang
Yingxia Zhao
Yingxia Zhao
Yingxia Zhao
Yingxia Zhao
Yingxia Zhao
Guoqing Zhao
Guoqing Zhao
Guoqing Zhao
Guoqing Zhao
Guoqing Zhao
author_facet Di Huang
Di Huang
Di Huang
Di Huang
Di Huang
Yihua Ren
Yihua Ren
Yihua Ren
Yihua Ren
Yihua Ren
Shouzhi Yang
Shouzhi Yang
Shouzhi Yang
Shouzhi Yang
Shouzhi Yang
Yingxia Zhao
Yingxia Zhao
Yingxia Zhao
Yingxia Zhao
Yingxia Zhao
Guoqing Zhao
Guoqing Zhao
Guoqing Zhao
Guoqing Zhao
Guoqing Zhao
author_sort Di Huang
collection DOAJ
description IntroductionIn the face of escalating climate change, conserving fir forests in southeastern Tibet is paramount. These forests uphold Tibetan biodiversity and support crucial ecological services.MethodsThis study used the typical plot method to investigate the survival status and development trends of three Chinese endemic Abies species, namely, Abies georgei var. smithii, Abies chayuensis, and Abies delavayi var. motuoensis, from the diameter structure, static life table, and survival curve.ResultsThe results revealed that 1) the density of Abies georgei var. smithii, Abies chayuensis, and Abies delavayi var. motuoensis in the community is 408, 320, and 103 trees per hectare, respectively. The structure of the diameter class of the three species of fir trees is a pyramid shape. As the diameter class increases, the number of each population fluctuates to varying degrees, and there is a lack of many medium- and large-diameter trees. 2) The survival curve of Abies georgei var. smithii tends to be similar to the Deevey type II curves, whereas the survival curves of Abies chayuensis and Abies delavayi var. motuoensis tend to be similar to the Deevey type III curves. Various population structures are growth-oriented but highly sensitive to external random disturbances, with mortality and disappearance rates multiple times, indicating poor population development. Survival analysis reveals that all populations begin to decline after the middle age range and that the age structure is relatively unstable.DiscussionThe results of this study contribute to revealing the structural characteristics and dynamic patterns of various spruce populations, providing a theoretical basis for the management and sustainable utilization of fir forests in southeastern Tibet.
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spelling doaj-art-a780b9ae5dd540ec8aebd72938a5a20f2025-08-20T02:38:25ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2024-12-011210.3389/fevo.2024.14879841487984Population structure and dynamic characteristics of three endemic Chinese Abies species in southeastern Tibet, ChinaDi Huang0Di Huang1Di Huang2Di Huang3Di Huang4Yihua Ren5Yihua Ren6Yihua Ren7Yihua Ren8Yihua Ren9Shouzhi Yang10Shouzhi Yang11Shouzhi Yang12Shouzhi Yang13Shouzhi Yang14Yingxia Zhao15Yingxia Zhao16Yingxia Zhao17Yingxia Zhao18Yingxia Zhao19Guoqing Zhao20Guoqing Zhao21Guoqing Zhao22Guoqing Zhao23Guoqing Zhao24Institute of Tibet Plateau Ecology, Tibet Agricultural and Animal Husbandry University, Nyingchi, ChinaNational Forest Ecosystem Observation and Research Station of Tibet, Nyingchi, ChinaKey Laboratory of Forest Ecology in Tibet Plateau, Ministry of Education, Nyingchi, ChinaKey Laboratory of Alpine Vegetation Ecological Security in Tibet, Nyingchi, ChinaNyingchi Ecological Monitoring Station, Nyingchi, ChinaInstitute of Tibet Plateau Ecology, Tibet Agricultural and Animal Husbandry University, Nyingchi, ChinaNational Forest Ecosystem Observation and Research Station of Tibet, Nyingchi, ChinaKey Laboratory of Forest Ecology in Tibet Plateau, Ministry of Education, Nyingchi, ChinaKey Laboratory of Alpine Vegetation Ecological Security in Tibet, Nyingchi, ChinaNyingchi Ecological Monitoring Station, Nyingchi, ChinaInstitute of Tibet Plateau Ecology, Tibet Agricultural and Animal Husbandry University, Nyingchi, ChinaNational Forest Ecosystem Observation and Research Station of Tibet, Nyingchi, ChinaKey Laboratory of Forest Ecology in Tibet Plateau, Ministry of Education, Nyingchi, ChinaKey Laboratory of Alpine Vegetation Ecological Security in Tibet, Nyingchi, ChinaNyingchi Ecological Monitoring Station, Nyingchi, ChinaInstitute of Tibet Plateau Ecology, Tibet Agricultural and Animal Husbandry University, Nyingchi, ChinaNational Forest Ecosystem Observation and Research Station of Tibet, Nyingchi, ChinaKey Laboratory of Forest Ecology in Tibet Plateau, Ministry of Education, Nyingchi, ChinaKey Laboratory of Alpine Vegetation Ecological Security in Tibet, Nyingchi, ChinaNyingchi Ecological Monitoring Station, Nyingchi, ChinaNational Forest Ecosystem Observation and Research Station of Tibet, Nyingchi, ChinaKey Laboratory of Forest Ecology in Tibet Plateau, Ministry of Education, Nyingchi, ChinaKey Laboratory of Alpine Vegetation Ecological Security in Tibet, Nyingchi, ChinaNyingchi Ecological Monitoring Station, Nyingchi, ChinaAnimal Science College, Tibet Agriculture and Animal Husbandry University, Nyingchi, ChinaIntroductionIn the face of escalating climate change, conserving fir forests in southeastern Tibet is paramount. These forests uphold Tibetan biodiversity and support crucial ecological services.MethodsThis study used the typical plot method to investigate the survival status and development trends of three Chinese endemic Abies species, namely, Abies georgei var. smithii, Abies chayuensis, and Abies delavayi var. motuoensis, from the diameter structure, static life table, and survival curve.ResultsThe results revealed that 1) the density of Abies georgei var. smithii, Abies chayuensis, and Abies delavayi var. motuoensis in the community is 408, 320, and 103 trees per hectare, respectively. The structure of the diameter class of the three species of fir trees is a pyramid shape. As the diameter class increases, the number of each population fluctuates to varying degrees, and there is a lack of many medium- and large-diameter trees. 2) The survival curve of Abies georgei var. smithii tends to be similar to the Deevey type II curves, whereas the survival curves of Abies chayuensis and Abies delavayi var. motuoensis tend to be similar to the Deevey type III curves. Various population structures are growth-oriented but highly sensitive to external random disturbances, with mortality and disappearance rates multiple times, indicating poor population development. Survival analysis reveals that all populations begin to decline after the middle age range and that the age structure is relatively unstable.DiscussionThe results of this study contribute to revealing the structural characteristics and dynamic patterns of various spruce populations, providing a theoretical basis for the management and sustainable utilization of fir forests in southeastern Tibet.https://www.frontiersin.org/articles/10.3389/fevo.2024.1487984/fulltypical plot methoddiameter structurestatic life tablefir forestsSoutheastern Tibet
spellingShingle Di Huang
Di Huang
Di Huang
Di Huang
Di Huang
Yihua Ren
Yihua Ren
Yihua Ren
Yihua Ren
Yihua Ren
Shouzhi Yang
Shouzhi Yang
Shouzhi Yang
Shouzhi Yang
Shouzhi Yang
Yingxia Zhao
Yingxia Zhao
Yingxia Zhao
Yingxia Zhao
Yingxia Zhao
Guoqing Zhao
Guoqing Zhao
Guoqing Zhao
Guoqing Zhao
Guoqing Zhao
Population structure and dynamic characteristics of three endemic Chinese Abies species in southeastern Tibet, China
Frontiers in Ecology and Evolution
typical plot method
diameter structure
static life table
fir forests
Southeastern Tibet
title Population structure and dynamic characteristics of three endemic Chinese Abies species in southeastern Tibet, China
title_full Population structure and dynamic characteristics of three endemic Chinese Abies species in southeastern Tibet, China
title_fullStr Population structure and dynamic characteristics of three endemic Chinese Abies species in southeastern Tibet, China
title_full_unstemmed Population structure and dynamic characteristics of three endemic Chinese Abies species in southeastern Tibet, China
title_short Population structure and dynamic characteristics of three endemic Chinese Abies species in southeastern Tibet, China
title_sort population structure and dynamic characteristics of three endemic chinese abies species in southeastern tibet china
topic typical plot method
diameter structure
static life table
fir forests
Southeastern Tibet
url https://www.frontiersin.org/articles/10.3389/fevo.2024.1487984/full
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