气候变化领域集成服务门户(CCPortal): A dendrochronological reconstruction of sugar maple growth and mortality dynamics in partially cut northern hardwood forests

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DOI	10.1016/j.foreco.2019.01.031
	A dendrochronological reconstruction of sugar maple growth and mortality dynamics in partially cut northern hardwood forests
	Moreau G.; Achim A.; Pothier D.
发表日期	2019
ISSN	0378-1127
起始页码	17
结束页码	26
卷号	437
英文摘要	We investigated the growth and mortality dynamics of 22 northern hardwood stands with well-known disturbance histories in southern Quebec, Canada. The main objective of this study was to evaluate the effect of short- and long-term growth trends on both the probability of mortality and the radial growth response of trees following partial cutting. This was first achieved by identifying growth release episodes and characterizing growth patterns prior to tree death from entire tree-ring series of 86 live and 26 dead sugar maple (Acer saccharum Marsh.) trees. Using mixed-effects logistic regression, we quantified the effects of short- and long-term growth trends, as well as external variables such as neighbourhood competition and tree vigour status on the probability of mortality and growth release events. Results showed that long periods of continuous growth decline or long periods of slow radial growth after a severe decrease occurred in 88% of dead trees. These growth patterns were associated with a progressive decline in tree vigour that was mostly initiated by drought and insect defoliations during the 1980s, thereby supporting the relevance of studying long-term tree-ring chronologies to deduce causes of post-harvest mortality. Our model showed that predictions of post-cut mortality events could be significantly improved by considering long-term radial growth trends (25 years before cutting) in individual trees. In terms of growth response, 24% of live trees had a release event occurring after the selection cut, which is slightly lower than the response induced by natural disturbance in previous decades. None of the tested long-term growth variables were significantly related to the occurrence of growth release events. Consequently, suppressed sugar maple trees appear to maintain their capacity to respond positively to gap creation, regardless of the length of the suppression period. We conclude that while decreasing trends in long-term radial growth increase mortality probabilities, the growth release potential of trees is negatively impacted by the presence of defects affecting tree vigour (e.g. fungal infections and cambial necroses) and positively related to the removal of neighbouring trees, rather than to prior growth trends. © 2019
英文关键词	Boundary-line release criteria; Growth release; Sugar maple; Tree selection; Tree vigour status
语种	英语
scopus关键词	Hardwoods; Probability; Growth release; Release criteria; Sugar maple; Tree selection; Tree vigour status; Forestry; deciduous tree; dendrochronology; disturbance; drought; forest ecosystem; growth response; mortality; population decline; reconstruction; tree; tree ring; Acer Saccharum; Forestry; Growth; Hardwoods; Mortality; Probability; Release; Trees; Canada; Quebec [Canada]; Acer; Acer saccharum; Hexapoda
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/156162
作者单位	Centre de recherche sur les matériaux renouvelables, Département des sciences du bois et de la forêt, Pavillon Abitibi-Price, 2405 rue de la Terrasse, Université Laval, Québec, QC G1V 0A6, Canada; Centre d’étude de la forêt, Département des sciences du bois et de la forêt, Pavillon Abitibi-Price, 2405 rue de la Terrasse, Université Laval, Québec, QC G1V 0A6, Canada
推荐引用方式 GB/T 7714	Moreau G.,Achim A.,Pothier D.. A dendrochronological reconstruction of sugar maple growth and mortality dynamics in partially cut northern hardwood forests[J],2019,437.
APA	Moreau G.,Achim A.,&Pothier D..(2019).A dendrochronological reconstruction of sugar maple growth and mortality dynamics in partially cut northern hardwood forests.Forest Ecology and Management,437.
MLA	Moreau G.,et al."A dendrochronological reconstruction of sugar maple growth and mortality dynamics in partially cut northern hardwood forests".Forest Ecology and Management 437(2019).