气候变化领域集成服务门户(CCPortal): Toposequence variability in tree growth associated with leaf traits for Larix gmelinii

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DOI	10.1016/j.foreco.2020.118611
	Toposequence variability in tree growth associated with leaf traits for Larix gmelinii
	Li Z.; Wang C.; Luo D.; Zhang Q.; Jin Y.
发表日期	2021
ISSN	0378-1127
卷号	479
英文摘要	Intraspecific variations in leaf traits and tree growth along environmental gradients are crucial for survival and distribution of the tree species, but they are substantially less quantified than interspecific counterparts. Here, we examined the intraspecific variations in leaf hydraulics and economics traits and growth of Larix gmelinii Rupr. – the predominant tree species in the Eurasian boreal forests with a toposequence approach. The toposequence included three replicated 1000-m transects of the larch plantation (31-year-old), each of which consisted of three plots located at the toe-, mid-, and top-slope, respectively. We found that the leaf hydraulics traits showed a “high-low-high” pattern along the toposequence, while the leaf economics traits, total biomass (TB) and TB increment (TBI) displayed an opposite trend, largely consistent with changes in site conditions especially soil nitrogen concentration. This suggests that the intraspecific variation in tree growth is coupled with leaf traits and site conditions. Leaf mass per area explained 21.9% of the variability in TB, while and the ability of drought tolerance explained 22.5% of that in TBI; and the interactions of hydraulic and economic variables explained additional 23.1–26.2% of that in TB or TBI. This result indicates that leaf traits interactively affect TB and TBI, but the hydraulics and economics play major roles in the short-term growth rate and relatively long-term biomass stock, respectively. Together, our findings demonstrate that the larch trees acclimate the leaf traits and growth/biomass accumulation to site conditions, and provide insights into the mechanistic understanding of forest production. © 2020 Elsevier B.V.
英文关键词	Biomass; Growth; Intraspecific variation; Leaf economics; Leaf hydraulics; Site condition
语种	英语
scopus关键词	Agronomy; Forestry; Hydraulics; Drought tolerances; Economic variables; Environmental gradient; Forest production; Intraspecific variation; Larch plantations; Leaf mass per area; Short-term growth; Ecology; boreal forest; coniferous tree; environmental gradient; growth; growth rate; intraspecific variation; leaf area; microclimate; plantation; soil nitrogen; toposequence; Agronomy; Biomass; Ecology; Economics; Forestry; Growth Rate; Hydraulics; Trees; Eurasia; Larix; Larix gmelinii
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/154905
作者单位	Center for Ecological Research, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, China; Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin, 150040, China
推荐引用方式 GB/T 7714	Li Z.,Wang C.,Luo D.,et al. Toposequence variability in tree growth associated with leaf traits for Larix gmelinii[J],2021,479.
APA	Li Z.,Wang C.,Luo D.,Zhang Q.,&Jin Y..(2021).Toposequence variability in tree growth associated with leaf traits for Larix gmelinii.Forest Ecology and Management,479.
MLA	Li Z.,et al."Toposequence variability in tree growth associated with leaf traits for Larix gmelinii".Forest Ecology and Management 479(2021).