气候变化领域集成服务门户(CCPortal): Few large trees, rather than plant diversity and acomposition, drive the above-ground biomass stock and dynamics of temperate forests in northeast China

CCPortal

DOI	10.1016/j.foreco.2020.118698
	Few large trees, rather than plant diversity and acomposition, drive the above-ground biomass stock and dynamics of temperate forests in northeast China
	Yuan Z.; Ali A.; Sanaei A.; Ruiz-Benito P.; Jucker T.; Fang L.; Bai E.; Ye J.; Lin F.; Fang S.; Hao Z.; Wang X.
发表日期	2021
ISSN	0378-1127
卷号	481
英文摘要	Large trees, as the versatile provider of ecosystem services, are the most susceptible to episodic disturbance regimes such as extreme climate and biotic agents across the globe, and hence, largely determine forest demographic processes. Despite the recognized fundamental ecological significance of large-diameter trees to above-ground biomass (AGB) stock, relatively little is known about their distinctive role, interplaying with abiotic and biotic drivers, in shaping forest AGB dynamics (i.e., gain and loss) at regional or larger extents. Here, we hypothesized that the AGB of few large trees drives AGB stock and dynamics (gain and loss) better than species diversity and trait composition in temperate forests along topography and soil gradients. We analyzed two repeated forest inventories data from 700 plots (including 74,300 adult trees) across 15 plots in temperate forests of northeastern China, including old-growth and disturbed forests. A steady net AGB change increase was found for 13 of the 15 plots. Despite disturbed forests were recovering from post-logging disturbance with a lower density of large-diameter trees and AGB stock than old-growth plots, disturbed forests had higher AGB gain, net AGB change and lower AGB loss than old-growth forests. The largest trees (i.e. top 1% AGB or diameter) were consistently more important for explaining AGB stock, gain and loss compared to plant diversity and trait composition. Besides, the elevation-related topographic factors were more direct determinants of forest AGB accumulation than soil nutrients, and also exerted the indirect impacts via increasing the dominance of resource-conservative trees, stand structural diversity and top 1% large trees. Overall, we highlight the key overruling effect of top 1% large trees on AGB stock and dynamics in response to local environmental factors. This study could improve our understanding of the multiple ecological mechanisms underlying the global change drivers of forest AGB stock and dynamics. © 2020 Elsevier B.V.
英文关键词	Biomass loss; High-biomass trees; Mass ratio effect; Productivity; Soil nutrient; Topography
语种	英语
scopus关键词	Digital storage; Dynamics; Ecosystems; Topography; Above ground biomass; Disturbance regime; Ecological mechanisms; Ecosystem services; Environmental factors; Logging disturbance; Old-growth forest; Structural diversity; Forestry; aboveground biomass; disturbance; forest ecosystem; old-growth forest; soil nutrient; species diversity; temperate forest; tree; Dynamics; Ecosystems; Forestry; Forests; Gain; Growth; Topography; Trees; China
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154806
作者单位	CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China; Department of Forest Resources Management, College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Departamento de Geología, Geografía y Medio Ambiente Universidad de Alcalá, Alcalá de Henares Madrid, 28801, Spain; Grupo de Ecología y Restauración Forestal, Departamento de Ciencias de la Vida, Universidad de Alcalá, Edificio de Ciencias, Campus Universitario, Alcalá de Henares Madrid, 28805, Spain; School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol, BS8 1TQ, United Kingdom; Key Laboratory of Geographical Processes and Ecological Security of Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun, 130024, China; School of Ecology and...
推荐引用方式 GB/T 7714	Yuan Z.,Ali A.,Sanaei A.,et al. Few large trees, rather than plant diversity and acomposition, drive the above-ground biomass stock and dynamics of temperate forests in northeast China[J],2021,481.
APA	Yuan Z..,Ali A..,Sanaei A..,Ruiz-Benito P..,Jucker T..,...&Wang X..(2021).Few large trees, rather than plant diversity and acomposition, drive the above-ground biomass stock and dynamics of temperate forests in northeast China.Forest Ecology and Management,481.
MLA	Yuan Z.,et al."Few large trees, rather than plant diversity and acomposition, drive the above-ground biomass stock and dynamics of temperate forests in northeast China".Forest Ecology and Management 481(2021).