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  • 1
    Language: English
    In: PLoS ONE, 01 January 2015, Vol.10(4), p.e0122539
    Description: Soil microbial communities play an important role in forest ecosystem functioning, but how climate change will affect the community composition and consequently bacterial functions is poorly understood. We assessed the effects of reduced precipitation with the aim of simulating realistic future...
    Keywords: Sciences (General)
    E-ISSN: 1932-6203
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  • 2
    Language: English
    In: Annals of Forest Science, 2018, Vol.75(1), pp.1-18
    Description: Key message Understory plant communities are essential for the recruitment of trees making up future forests. Independent of plant diversity, the understory across different forest ecosystems shows considerable physiological acclimation and structural stability towards drought events, which are expected to occur more frequently in future. Context Understory plant communities are essential for the recruitment of trees making up the future forest. It is so far poorly understood how climate change will affect understory in beech and conifer forests managed at different intensity levels. Aims We hypothesized that drought would affect transpiration and carbon isotope discrimination but not species richness and diversity. Moreover, we assumed that forest management intensity will modify the responses to drought of the understory community. Methods We set up roofs in forests with a gradient of management intensities (unmanaged beech—managed beech—intensively managed conifer forests) in three regions across Germany. A drought event close to the 2003 drought was imposed in two consecutive years. Results After 2 years, the realized precipitation reduction was between 27% and 34%. The averaged water content in the top 20 cm of the soil under the roof was reduced by 2% to 8% compared with the control. In the 1st year, leaf level transpiration was reduced for different functional groups, which scaled to community transpiration modified by additional effects of drought on functional group leaf area. Acclimation effects in most functional groups were observed in the 2nd year. Conclusion Forest understory shows high plasticity at the leaf and community level, and high structural stability to changing climate conditions with drought events.
    Keywords: Climate change ; Herb layer ; Stable carbon isotope ; Functional traits ; Diversity
    ISSN: 1286-4560
    E-ISSN: 1297-966X
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  • 3
    Language: English
    In: Annals of Forest Science, 2019, Vol.76(2), pp.1-9
    Description: Key message The NFIWADS database contains aggregated results for the German National Forest Inventory (NFI) plots based on process-based water balance simulations. More than 150 water budget, soil moisture, and drought stress indicators were derived for mature, closed-canopy beech and spruce stands, and provide a basis for the assessment of forest productivity and risks. Dataset is available in the Open Agrar repository (Schmidt-Walter et al 2018) athttps://www.openagrar.de/receive/openagrar_mods_00044576. Associated metadata is available athttps://metadata-afs.nancy.inra.fr/geonetwork/srv/fre/catalog.search#/metadata/2f09d81c-b663-48a0-8b84-0b247bba6d35.
    Keywords: Forest inventory ; Soil water availability ; Water balance ; Drought stress ; Climate change
    ISSN: 1286-4560
    E-ISSN: 1297-966X
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