气候变化领域集成服务门户(CCPortal): Competition and climate influence growth of black spruce in western boreal forests

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DOI	10.1016/j.foreco.2019.04.017
	Competition and climate influence growth of black spruce in western boreal forests
	Oboite F.O.; Comeau P.G.
发表日期	2019
ISSN	0378-1127
起始页码	84
结束页码	94
卷号	443
英文摘要	The effects of competition and climate on the growth of black spruce (Picea mariana (Mill.) BSP.) were examined using long term measurement data collected across the western Canadian boreal forest. Non-linear mixed effect models were developed and used to examine tree growth responses to competition and climate across the range of upland forest types where black spruce is found in this region including: spruce/fir, deciduous and pine forest types. Basal area of competitor trees larger than the subject tree, and at least one of the following climate variables: frost free period, mean annual precipitation and mean annual temperature, were selected as predictors of diameter and height growth. Spruce/fir competition had a stronger negative effect on the growth of black spruce than pine competition. However, deciduous competition had a positive effect on diameter and height growth of black spruce. Growth was generally sensitive to changes in climate across the three forest types. Increases in temperature (except in pine forest stand) and reductions in precipitation (except in deciduous forest stand) lead to increases in diameter and height growth; however, our model also predicted that increasing temperature when pine stand densities are high will lead to a reduction in growth. These results indicated that forest types and competition will determine the impact of climate on the growth of black spruce trees. Climate sensitive growth functions developed for black spruce in this study will be useful in modeling and managing pure and mixed stands of black spruce across the western boreal forest. © 2019 Elsevier B.V.
英文关键词	Black spruce; Climate; Competition; Forest types; Growth; Mixed model
语种	英语
scopus关键词	Climate models; Competition; Growth (materials); Black spruce; Climate; Forest type; Increasing temperatures; Mean annual precipitation; Mean annual temperatures; Mixed modeling; Picea mariana (mill.) bsp; Forestry; boreal forest; competition (ecology); coniferous forest; coniferous tree; deciduous forest; ecological modeling; forest ecosystem; growth; growth response; precipitation (climatology); temperature effect; Competition; Diameter; Forestry; Growth; Picea Mariana; Pinus; Canada; Picea mariana
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/156009
作者单位	Department of Renewable Resources, University of Alberta, 751 General Services Building, Edmonton, AB T6G 2H1, Canada
推荐引用方式 GB/T 7714	Oboite F.O.,Comeau P.G.. Competition and climate influence growth of black spruce in western boreal forests[J],2019,443.
APA	Oboite F.O.,&Comeau P.G..(2019).Competition and climate influence growth of black spruce in western boreal forests.Forest Ecology and Management,443.
MLA	Oboite F.O.,et al."Competition and climate influence growth of black spruce in western boreal forests".Forest Ecology and Management 443(2019).