气候变化领域集成服务门户(CCPortal): Elevation-Dependent Natural Regeneration of Abies georgei var. smithii Forest in Southeastern Tibet

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DOI	10.3390/f15010142
	Elevation-Dependent Natural Regeneration of Abies georgei var. smithii Forest in Southeastern Tibet
	Wang, Ruihong; Hu, Ronggui; Wu, Yupeng; Shaaban, Muhammad; Zhang, Tao; Pan, Gang; Lu, Jie; Jiang, Yanbin
发表日期	2024
EISSN	1999-4907
卷号	15 期号:1
英文摘要	The comprehensive impacts of biotic and abiotic factors on the natural regeneration of Abies georgei var. smithii (Abies) forests in Tibet are not thoroughly understood. To address this gap, our study focused on the regeneration densities of Abies seedlings, saplings, and small trees across 21 plots (each 20 m x 20 m) along an elevation gradient from 3730 m to 4330 m in the Sygera Mountains of Southeastern Tibet. We meticulously measured a suite of 11 variables that describe stand structures and ecological conditions. Through analyses using Spearman's correlation analysis, hierarchical partitioning, and multiple linear regression, we identified key ecological drivers for successful Abies regeneration. Our results highlighted a peak in the abundance of seedlings, saplings, and small trees at an elevation of 3930 m. As the elevation rose from 3730 m to 4330 m, we observed an initial increase followed by a decrease in canopy cover (canopy), mother tree density (MotherT), 1000-seed weight (SeedW), litter thickness (LitterT), moss cover (MossC), moss thickness (MossT), soil moisture (SM), and soil bulk density, while mean annual temperature and soil depth to permafrost consistently decreased. The critical ecological drivers for Abies natural regeneration were identified as follows: MossT was pivotal for seedling density; canopy and MossC were influential for sapling density, and MotherT was the main factor affecting the density of small trees. This study suggests that a high density of mother trees and a thick and highly covered layer of moss are conducive to the natural regeneration of Abies in the Sygera Mountains. Understanding the current status of regeneration is vital for informing conservation and management strategies for Abies forests in Tibet.
关键词	ecological factor elevation forest stand natural regeneration moss Tibet
英文关键词	SEEDLING EMERGENCE; SPECIES-DIVERSITY; BRYOPHYTES; DYNAMICS; LITTER; ESTABLISHMENT; TOPOGRAPHY; VEGETATION; SURVIVAL; GROWTH
WOS研究方向	Forestry
WOS记录号	WOS:001151772400001
来源期刊	FORESTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282555
作者单位	Huazhong Agricultural University; Tibet Agriculture & Animal Husbandry University; Tibet Agriculture & Animal Husbandry University; Henan University of Science & Technology; Shenyang Agricultural University
推荐引用方式 GB/T 7714	Wang, Ruihong,Hu, Ronggui,Wu, Yupeng,et al. Elevation-Dependent Natural Regeneration of Abies georgei var. smithii Forest in Southeastern Tibet[J],2024,15(1).
APA	Wang, Ruihong.,Hu, Ronggui.,Wu, Yupeng.,Shaaban, Muhammad.,Zhang, Tao.,...&Jiang, Yanbin.(2024).Elevation-Dependent Natural Regeneration of Abies georgei var. smithii Forest in Southeastern Tibet.FORESTS,15(1).
MLA	Wang, Ruihong,et al."Elevation-Dependent Natural Regeneration of Abies georgei var. smithii Forest in Southeastern Tibet".FORESTS 15.1(2024).