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Absence of soil frost affects plant-soil interactions in temperate grasslands

Title data

Schürings, Jan ; Beierkuhnlein, Carl ; Grant, Kerstin ; Jentsch, Anke ; Malyshev, Andrey ; Peñuelas, Josep ; Sardans, Jordi ; Kreyling, Jürgen:
Absence of soil frost affects plant-soil interactions in temperate grasslands.
In: Plant and Soil. Vol. 371 (2013) Issue 1/2 . - pp. 559-572.
ISSN 1573-5036
DOI: https://doi.org/10.1007/s11104-013-1724-y

Abstract in another language

Background and aimsIntermittently frozen ground in winter is expected to disappear over large areas in the temperate zone due to ongoing climate warming. The lack of soil frost influences plant soil interactions and needs to be studied in more detail.MethodsWinter soil frost was avoided by belowground heating wires in a field experiment over two subsequent winters in temperate grassland. Soil respiration, soil nitrogen availability and plant performance (aboveground biomass, root length at two depth levels, greenness, nutrient content) were compared between “no-frost” and reference plots which underwent repeated freeze-thaw cycles in both winters.ResultsSoil respiration increased in the “no-frost” treatment during the warming phase (+291 %). N-availability in the upper 10 cm of the soil profile was not affected, possibly due to increased plant N accumulation during winter (+163%), increased plant N concentration (+18%) and increased biomass production (+31.5%) in the growing season. Translocation of roots into deeper soil layers without changes in total root length in response to the “no-frost” treatment, however, may be a sign of nutrient leaching.ConclusionsThe cumulative effect on carbon cycling due to warmer soils therefore depends on the balance between increased winter carbon loss due to higher soil biotic activity and enhanced plant productivity with higher nutrient accumulation in the growing season.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER115292
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Biogeography
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Biogeography > Chair Biogeography - Univ.-Prof. Dr. Carl Beierkuhnlein
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Professorship Disturbance Ecology
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 29 Apr 2015 15:41
Last Modified: 11 Jan 2018 11:11
URI: https://eref.uni-bayreuth.de/id/eprint/11620