气候变化领域集成服务门户(CCPortal): Genetic increases in growth do not lead to trade-offs with ecologically important litter and fine root traits in Norway spruce

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DOI	10.1016/j.foreco.2019.05.021
	Genetic increases in growth do not lead to trade-offs with ecologically important litter and fine root traits in Norway spruce
	Senior J.K.; Iason G.R.; Gundale M.; Whitham T.G.; Axelsson E.P.
发表日期	2019
ISSN	0378-1127
起始页码	54
结束页码	62
卷号	446
英文摘要	The genetic composition of many forests across the world is being altered through the introduction of genetic material selected and bred for superior production qualities. Growth strategy and allocation theories predict that introducing genetic material with faster growth rates into managed forest populations could result in tradeoffs that influence the expression of other traits of ecological importance to the tree and its associated communities and ecosystem processes. We assessed variation in tree traits among ten full-sibling and four open-pollinated progenies of Norway spruce (Picea abies L. Karst.) growing within a 38 year old common garden in Sävar, Sweden; namely fine root and litter carbon, nitrogen, lignin, starch and condensed tannin concentrations as well as the specific leaf area (SLA) and root tissue density (RTD). We first tested whether these traits varied among spruce progenies, and secondly, if they exhibited significant relationships with tree growth expressed as diameter at breast height (DBH). Significant variation was detected in the DBH of progenies, with a three-fold difference between the slowest and fastest growing progenies. Although progenies exhibited significant variation in SLA, RTD, as well as needle litter and fine root condensed tannin concentrations, only SLA exhibited a significant relationship with DBH. These findings suggest that while a shift to faster-growing genetic material in managed forests may not necessarily result in tradeoffs with the expression of other ecologically important traits, the origin of planted genetic material and increased growth itself is likely to impact the quality and quantity of organic matter entering soils. © 2019 Elsevier B.V.
英文关键词	Chemical and morphological traits; Fine root; Intraspecific variation; Litter; Picea abies
语种	英语
scopus关键词	Commerce; Economic and social effects; Ecosystems; Flavonoids; Plants (botany); Population statistics; Tannins; Fine roots; Intraspecific variation; Litter; Morphological traits; Picea abies; Forestry; coniferous tree; fine root; growth; growth rate; intraspecific variation; leaf area; litter; organic matter; trade-off; Commerce; Ecosystems; Flavonoids; Forestry; Picea Abies; Tannins; Sweden; Picea; Picea abies
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/155943
作者单位	Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden; The James Hutton Institute, Aberdeen, Scotland, United Kingdom; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden; Merriam-Powell Center for Environmental Research & Department of Biological Sciences, Northern Arizona University, Flagstaff, AZ, United States
推荐引用方式 GB/T 7714	Senior J.K.,Iason G.R.,Gundale M.,et al. Genetic increases in growth do not lead to trade-offs with ecologically important litter and fine root traits in Norway spruce[J],2019,446.
APA	Senior J.K.,Iason G.R.,Gundale M.,Whitham T.G.,&Axelsson E.P..(2019).Genetic increases in growth do not lead to trade-offs with ecologically important litter and fine root traits in Norway spruce.Forest Ecology and Management,446.
MLA	Senior J.K.,et al."Genetic increases in growth do not lead to trade-offs with ecologically important litter and fine root traits in Norway spruce".Forest Ecology and Management 446(2019).