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Control of nitrous oxide emissions in European beech, Norway spruce and Scots pine forests

Title data

Borken, Werner ; Beese, Friedrich:
Control of nitrous oxide emissions in European beech, Norway spruce and Scots pine forests.
In: Biogeochemistry. Vol. 76 (2005) Issue 1 . - pp. 141-159.
ISSN 1573-515X
DOI: https://doi.org/10.1007/s10533-005-2901-8

Abstract in another language

Elevated nitrogen deposition has increased tree growth, the storage of soil organic matter, and nitrate leaching in many European forests, but little is known about the effect of tree species and nitrogen deposition on nitrous oxide emission. Here we report soil N2O emission from European beech, Scots pine and Norway spruce forests in two study areas of Germany with distinct climate, N deposition and soils. N2O emissions and throughfall input of nitrate and ammonium were measured biweekly during growing season and monthly during dormant season over a 28 months period. Annual N2O emission rates ranged between 0.4 and 1.3 kg N ha−1 year−1 among the stands and were higher in 1998 than in 1999 due to higher precipitation during the growing season of 1998. A 2-way-ANOVA revealed that N2O fluxes were significantly higher (p<0.001) at Solling than at Unterlüß while tree species had no effect on N2O emissions. Soil texture and the amount of throughfall explained together 94% of the variance among the stands, indicating that increasing portions of silt and clay may promote the formation of N2O in wet forest soils. Moreover, cumulative N2O fluxes were significantly correlated (r 2 = 0.60, p<0.001) with cumulative NO 3 − fluxes at 10 cm depth as an indicator of N saturation, however, the slope of the regression curve indicates a rather weak effect of NO 3 − fluxes on N2O emissions. N input by throughfall was not correlated with N2O emissions and only 1.6–3.2% of N input was released as N2O to the atmosphere. Our results suggest that elevated N inputs have little effect on N2O emissions in beech, spruce and pine forests.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER23733
Keywords: N deposition; N saturation; N2O emission; Soil texture; Temperate forests; Tree species
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences > Chair Soil 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: 11 Sep 2015 06:33
Last Modified: 11 Sep 2015 06:33
URI: https://eref.uni-bayreuth.de/id/eprint/19198