气候变化领域集成服务门户(CCPortal): Production ecology and reverse growth dominance in an old-growth ponderosa pine forest

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DOI	10.1016/j.foreco.2020.117891
	Production ecology and reverse growth dominance in an old-growth ponderosa pine forest
	Fernández-Tschieder E.; Binkley D.; Bauerle W.
发表日期	2020
ISSN	0378-1127
卷号	460
英文摘要	The growth of a stand is the sum of the growth of individual trees. Growth of individual trees can be explained by the amount of resources captured and how efficiently those resources are used (production ecology). The relationship between the contribution of a tree to stand growth relative to the contribution to stand biomass is expressed by the growth dominance. Patterns of growth dominance vary among tree species and stand age, suggesting that differences in production ecology underlie the observed patterns of growth dominance within stands. We explored the production ecology in an old-growth ponderosa pine forest. Growth dominance was strongly negative (−0.22) and was the outcome of a less-than-proportional increase of tree growth as a function of tree size. Dominant trees were almost 5 times larger than suppressed trees (1024 vs. 211 kg tree−1) but grew only about 2 times more than suppressed trees (4.3 vs. 1.9 kg tree−1 year−1). Dominant trees captured a less-than-proportional amount of light relative to their size (90.4 vs. 20.9 GJ year−1 tree−1) and light use efficiency declined with tree size. Suppressed trees were twice as efficient as dominant trees (0.11 vs. 0.05 kg[wood] GJ[PAR]−1). Our results highlight the link between growth dominance, competition for resources, and the pattern of light use efficiency among large versus small trees. © 2020 Elsevier B.V.
关键词	Efficiency Forestry Growth dominance coefficients Individual tree Light use efficiency Ponderosa pine forest Resource competitions Resource use Size growths Suppressed trees Ecology competition (ecology)coniferous forest dominance light use efficiency old-growth forest stand structure Ecology Efficiency Forestry Growth Light Patterns Resources Trees
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133003
推荐引用方式 GB/T 7714	Fernández-Tschieder E.,Binkley D.,Bauerle W.. Production ecology and reverse growth dominance in an old-growth ponderosa pine forest[J]. Forest Ecology and Management,2020,460.
APA	Fernández-Tschieder E.,Binkley D.,&Bauerle W..(2020).Production ecology and reverse growth dominance in an old-growth ponderosa pine forest.,460.
MLA	Fernández-Tschieder E.,et al."Production ecology and reverse growth dominance in an old-growth ponderosa pine forest".460(2020).