气候变化领域集成服务门户(CCPortal): Neighbourhood species richness and drought-tolerance traits modulate tree growth and δ13C responses to drought

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DOI	10.1111/plb.13611
	Neighbourhood species richness and drought-tolerance traits modulate tree growth and δ13C responses to drought
	Schnabel, F.; Barry, K. E.; Eckhardt, S.; Guillemot, J.; Geilmann, H.; Kahl, A.; Moossen, H.; Bauhus, J.; Wirth, C.
发表日期	2024
ISSN	1435-8603
EISSN	1438-8677
起始页码	26
结束页码	2
卷号	26 期号:2
英文摘要	Mixed-species forests are promoted as a forest management strategy for climate change adaptation, but whether they are more resistant to drought than monospecific forests remains contested. In particular, the trait-based mechanisms driving the role of tree diversity under drought remain elusive. Using tree cores from a large-scale biodiversity experiment, we investigated tree growth and physiological stress responses (i.e. increase in wood carbon isotopic ratio; delta C-13) to changes in climate-induced water availability (wet to dry years) along gradients in neighbourhood tree species richness and drought-tolerance traits. We hypothesized that neighbourhood species richness increases growth and decreases delta C-13 and that these relationships are modulated by the abiotic (i.e. climatic conditions) and the biotic context. We characterised the biotic context using drought-tolerance traits of focal trees and their neighbours. These traits are related to cavitation resistance versus resource acquisition and stomatal control.Tree growth increased with neighbourhood species richness. However, we did not observe a universal relief of water stress in species-rich neighbourhoods. The effects of neighbourhood species richness and climate on growth and delta C-13 were modulated by the traits of focal trees and the traits of their neighbours. At either end of each drought-tolerance gradient, species responded in opposing directions during dry and wet years.We show that species' drought-tolerance traits can explain the strength and nature of biodiversity-ecosystem functioning relationships in experimental tree communities experiencing drought. Mixing tree species can increase growth but may not universally relieve drought stress.
英文关键词	biodiversity-ecosystem functioning; carbon isotopes; climate change; functional traits; mixed-species forest; plant-plant interactions; tree rings
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001138951000001
来源期刊	PLANT BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289435
作者单位	Leipzig University; University of Freiburg; Utrecht University; CIRAD; INRAE; Universite de Montpellier; Institut Agro; Montpellier SupAgro; CIRAD; Institut de Recherche pour le Developpement (IRD); Universidade de Sao Paulo; Max Planck Society; University of Freiburg
推荐引用方式 GB/T 7714	Schnabel, F.,Barry, K. E.,Eckhardt, S.,et al. Neighbourhood species richness and drought-tolerance traits modulate tree growth and δ13C responses to drought[J],2024,26(2).
APA	Schnabel, F..,Barry, K. E..,Eckhardt, S..,Guillemot, J..,Geilmann, H..,...&Wirth, C..(2024).Neighbourhood species richness and drought-tolerance traits modulate tree growth and δ13C responses to drought.PLANT BIOLOGY,26(2).
MLA	Schnabel, F.,et al."Neighbourhood species richness and drought-tolerance traits modulate tree growth and δ13C responses to drought".PLANT BIOLOGY 26.2(2024).