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Fluxes of NO and N₂O from temperate forest soils: impact of forest type, N deposition and of liming on the NO and N₂O emissions

Butterbach-Bahl, K.; Gasche, R.; Breuer, L.; Papen, H.

Annual cycles of NO, NO$_{2}$ and N$_{2}$O emission rates from soil were determined with high temporal resolution at a spruce (control and limed plot) and beech forest site (“Höglwald”) in Southern Germany (Bavaria) by use of fully automated measuring systems. The fully automated measuring system used for the determination of NO and NO$_{2}$ flux rates is described in detail. In addition, NO, NO$_{2}$ and N$_{2}$O emission rates from soils of different pine forest ecosystems of Northeastern Germany (Brandenburg) were determined during 2 measuring campaigns in 1995. Mean monthly NO and N$_{2}$O emission rates (July 1994–June 1995) of the untreated spruce plot at the Höglwald site were in the range of 20–130 $\mu$g NO-N m$^{-2}$ h$^{-1}$ and 3.5–16.4 $\mu$g N2O-N m$^{-2}$ h$^{-1}$, respectively. Generally, NO emission exceeded N$_{2}$O emission. Liming of a spruce plot resulted in a reduction of NO emission rates (monthly means: 15–140 $\mu$g NO-N m$^{-2}$ h$^{-1}$) by 25-30% as compared to the control spruce plot. On the other hand, liming of a spruce plot significantly enhanced over the entire observation period N$_{2}$O emission rates (monthly means: 6.2–22.1 $\mu$g N$_{2}$O-N m$^{-2}$ h$^{-1}$). ... mehr

DOI: 10.1023/A:1009785521107
Web of Science
Zitationen: 169
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 1997
Sprache Englisch
Identifikator ISSN: 1385-1314
KITopen-ID: 1000097891
Erschienen in Nutrient cycling in agroecosystems
Verlag Springer
Band 48
Heft 1/2
Seiten 79–90
Schlagwörter acid rain, beech, denitrification, liming, N cycle, N deposition, nitric oxide, nitrification, nitrous oxide, NO-, NO2-, N2O-emission, NO/N2O emission ratio, pine, spruce, temperate forest soils
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