Does excess nitrogen supply increase the drought sensitivity of European beech (Fagus sylvatica L.) seedlings?

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Does excess nitrogen supply increase the drought sensitivity of European beech (Fagus sylvatica L.) seedlings? / Dziedek, Christoph; von Oheimb, Goddert; Calvo, Leonor et al.

in: Plant Ecology, Jahrgang 217, Nr. 4, 01.04.2016, S. 393-405.

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

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Dziedek C, von Oheimb G, Calvo L, Fichtner A, Kriebitzsch W-U, Marcos E et al. Does excess nitrogen supply increase the drought sensitivity of European beech (Fagus sylvatica L.) seedlings? Plant Ecology. 2016 Apr 1;217(4):393-405. Epub 2016 Feb 22. doi: 10.1007/s11258-016-0581-1

Bibtex

@article{0610ae1f0b754472a4c26d9b602cfb75,
title = "Does excess nitrogen supply increase the drought sensitivity of European beech (Fagus sylvatica L.) seedlings?",
abstract = "Climate change and atmospheric deposition of nitrogen affect biodiversity patterns and functions of forest ecosystems worldwide. Many studies have quantified tree growth responses to single global change drivers, but less is known about the interaction effects of these drivers at the plant and ecosystem level. In the present study, we conducted a full-factorial greenhouse experiment to analyse single and combined effects of nitrogen fertilization (N treatment) and drought (D treatment) on 16 morphological and chemical response variables (including tissue δ13C signatures) of one-year-old Fagus sylvatica seedlings originating from eight different seed families from the Cantabrian Mountains (NW Spain). Drought exerted the strongest effect on response variables, reflected by decreasing biomass production and increasing tissue δ13C signatures. However, D and N treatments interacted for some of the response variables, indicating that N fertilization has the potential to strengthen the negative effects of drought (with both antagonistic and amplifying interactions). For example, combined effects of N and D treatments caused a sevenfold increase of necrotic leaf biomass. We hypothesize that increasing drought sensitivity was mainly attributable to a significant reduction of the root biomass in combined N and D treatments, limiting the plants{\textquoteright} capability to satisfy their water demands. Significant seed family effects and interactions of seed family with N and D treatments across response variables suggest a high within-population genetic variability. In conclusion, our findings indicated a high drought sensitivity of Cantabrian beech populations, but also interaction effects of N and D on growth responses of beech seedlings.",
keywords = "Sustainability Science, Cantabrian mountains, Global change, Interaction effects, Tissue δ13C signature, Ecosystems Research, Cantabrian mountains, Global change, Interaction effects, Spain, Tissue δ13C signature",
author = "Christoph Dziedek and {von Oheimb}, Goddert and Leonor Calvo and Andreas Fichtner and Wolf-Ulrich Kriebitzsch and Elena Marcos and Werner H{\"a}rdtle and Witja Pitz",
year = "2016",
month = apr,
day = "1",
doi = "10.1007/s11258-016-0581-1",
language = "English",
volume = "217",
pages = "393--405",
journal = "Plant Ecology",
issn = "1385-0237",
publisher = "Springer Netherlands",
number = "4",

}

RIS

TY - JOUR

T1 - Does excess nitrogen supply increase the drought sensitivity of European beech (Fagus sylvatica L.) seedlings?

AU - Dziedek, Christoph

AU - von Oheimb, Goddert

AU - Calvo, Leonor

AU - Fichtner, Andreas

AU - Kriebitzsch, Wolf-Ulrich

AU - Marcos, Elena

AU - Härdtle, Werner

AU - Pitz, Witja

PY - 2016/4/1

Y1 - 2016/4/1

N2 - Climate change and atmospheric deposition of nitrogen affect biodiversity patterns and functions of forest ecosystems worldwide. Many studies have quantified tree growth responses to single global change drivers, but less is known about the interaction effects of these drivers at the plant and ecosystem level. In the present study, we conducted a full-factorial greenhouse experiment to analyse single and combined effects of nitrogen fertilization (N treatment) and drought (D treatment) on 16 morphological and chemical response variables (including tissue δ13C signatures) of one-year-old Fagus sylvatica seedlings originating from eight different seed families from the Cantabrian Mountains (NW Spain). Drought exerted the strongest effect on response variables, reflected by decreasing biomass production and increasing tissue δ13C signatures. However, D and N treatments interacted for some of the response variables, indicating that N fertilization has the potential to strengthen the negative effects of drought (with both antagonistic and amplifying interactions). For example, combined effects of N and D treatments caused a sevenfold increase of necrotic leaf biomass. We hypothesize that increasing drought sensitivity was mainly attributable to a significant reduction of the root biomass in combined N and D treatments, limiting the plants’ capability to satisfy their water demands. Significant seed family effects and interactions of seed family with N and D treatments across response variables suggest a high within-population genetic variability. In conclusion, our findings indicated a high drought sensitivity of Cantabrian beech populations, but also interaction effects of N and D on growth responses of beech seedlings.

AB - Climate change and atmospheric deposition of nitrogen affect biodiversity patterns and functions of forest ecosystems worldwide. Many studies have quantified tree growth responses to single global change drivers, but less is known about the interaction effects of these drivers at the plant and ecosystem level. In the present study, we conducted a full-factorial greenhouse experiment to analyse single and combined effects of nitrogen fertilization (N treatment) and drought (D treatment) on 16 morphological and chemical response variables (including tissue δ13C signatures) of one-year-old Fagus sylvatica seedlings originating from eight different seed families from the Cantabrian Mountains (NW Spain). Drought exerted the strongest effect on response variables, reflected by decreasing biomass production and increasing tissue δ13C signatures. However, D and N treatments interacted for some of the response variables, indicating that N fertilization has the potential to strengthen the negative effects of drought (with both antagonistic and amplifying interactions). For example, combined effects of N and D treatments caused a sevenfold increase of necrotic leaf biomass. We hypothesize that increasing drought sensitivity was mainly attributable to a significant reduction of the root biomass in combined N and D treatments, limiting the plants’ capability to satisfy their water demands. Significant seed family effects and interactions of seed family with N and D treatments across response variables suggest a high within-population genetic variability. In conclusion, our findings indicated a high drought sensitivity of Cantabrian beech populations, but also interaction effects of N and D on growth responses of beech seedlings.

KW - Sustainability Science

KW - Cantabrian mountains

KW - Global change

KW - Interaction effects

KW - Tissue δ13C signature

KW - Ecosystems Research

KW - Cantabrian mountains

KW - Global change

KW - Interaction effects

KW - Spain

KW - Tissue δ13C signature

UR - http://www.scopus.com/inward/record.url?scp=84959154481&partnerID=8YFLogxK

U2 - 10.1007/s11258-016-0581-1

DO - 10.1007/s11258-016-0581-1

M3 - Journal articles

VL - 217

SP - 393

EP - 405

JO - Plant Ecology

JF - Plant Ecology

SN - 1385-0237

IS - 4

ER -

DOI