气候变化领域集成服务门户(CCPortal): The effect of tree diversity on the resistance and recovery of forest stands in the French Alps may depend on species differences in hydraulic features

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DOI	10.1016/j.foreco.2019.117486
	The effect of tree diversity on the resistance and recovery of forest stands in the French Alps may depend on species differences in hydraulic features
	Jourdan M.; Lebourgeois F.; Morin X.
发表日期	2019
ISSN	0378-1127
卷号	450
英文摘要	As climate change should lead to an increase in the vulnerability and the sensitivity of forests to extreme climatic events, quantifying and predicting their response to more severe droughts remains a key task for foresters. Furthermore, recent works have suggested that tree diversity may affect forest ecosystem functioning, including their response to extreme events. In this study we aimed at testing whether the growth response of forest stands to stressful climatic events varied between mixed and monospecific stands, under various environmental conditions. We focused on beech-fir forests (Fagus sylvatica [L.] and Abies alba [L.]) and beech-oak forests (F. sylvatica [L.] and Quercus pubescent [L.]) in the French Alps. We used a dendrochronological dataset sampled in forest plots organized by triplets (one mixture and two monospecific stands) distributed in six sites along a latitudinal gradient. We tested (1) whether stand diversity (two-species stands vs monospecific stands) modulates the stands’ response to drought events in terms of productivity, (2) whether species identity may drive the diversity effect on resistance and recovery, and (3) whether this can be explained by interspecific interactions. We found that (1) interspecific differences in response to extreme drought events (possibly due to interspecific differences in hydraulic characteristics) can induce a mixture effect on stand growth, although it appeared (2) to be strongly depending on species identity (positive effect only found for beech-fir mixed stands), while (3) there were no significant non-additive effects of diversity on stand resistance and recovery, except for some specific cases. Overall, our study shows that promoting selected mixed stands management may buffer extreme drought effect on stand productivity. © 2019 Elsevier B.V.
英文关键词	Alps; Climate change; Diversity; Forests; Recovery; Resistance
语种	英语
scopus关键词	Climate change; Drought; Ecosystems; Electric resistance; Mixtures; Productivity; Recovery; Alps; Diversity; Environmental conditions; Forests; Hydraulic characteristic; Interspecific differences; Interspecific interactions; Latitudinal gradients; Forestry; climate change; drought stress; ecosystem function; forest ecosystem; growth response; hydraulic conductivity; mixed forest; species diversity; stand structure; vulnerability; Drought; Ecosystems; Electric Resistance; Mixtures; Productivity; Recovery; Alps; France; Abies; Abies alba; Fagus; Fagus sylvatica; Quercus
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/155796
作者单位	Centre d'Ecologie Fonctionnelle et Evolutive, CNRS, UMR 5175, FORECAST, Montpellier, France; Agence de l'environnement et de la maitrise de l’énergie, ADEME, Angers, France; Université de Lorraine, AgroParisTech, INRA, UMR Silva, 14 rue Girardet, Nancy, F-54000, France
推荐引用方式 GB/T 7714	Jourdan M.,Lebourgeois F.,Morin X.. The effect of tree diversity on the resistance and recovery of forest stands in the French Alps may depend on species differences in hydraulic features[J],2019,450.
APA	Jourdan M.,Lebourgeois F.,&Morin X..(2019).The effect of tree diversity on the resistance and recovery of forest stands in the French Alps may depend on species differences in hydraulic features.Forest Ecology and Management,450.
MLA	Jourdan M.,et al."The effect of tree diversity on the resistance and recovery of forest stands in the French Alps may depend on species differences in hydraulic features".Forest Ecology and Management 450(2019).