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A 3-year continuous record of nitrogen trace gas fluxes from untreated and limed soil of a N-saturated spruce and beech forest ecosystem in Germany: 2. NO and NO₂ fluxes

Gasche, Rainer 1; Papen, Hans 1
1 Forschungszentrum Karlsruhe (FZKA)

For 3 years we followed the complete annual cycles of NO and NO$_{2}$ flux rates from soil of a spruce control site, a limed spruce site, and a beech site at the Höglwald Forest, Bavaria, Germany, with high temporal resolution in order to gain detailed information about (1) the impacts of forest type, liming, and atmospheric N input by wet deposition on the magnitude of NO and NO$_{2}$ flux rates and (2) the microbial processes involved in NO production and emission. In addition to identification of seasonal variations of flux rates the huge database allowed calculation of annual mean NO and NO$_{2}$ fluxes with high accuracy and identification of interannual variations of fluxes. The long-term annual mean NO$_{X}$ emission was 61.7 $\mu$g NO$_{X}$ N m$^{-2}$ h$^{-1}$ for the spruce control site, 17.3 $\mu$g NO$_{X}$ N m$^{-^2}$ h${^-1}$ for the limed spruce site, and 4.0 $\mu$g NO$_{X}$ N m$^{-2}$ h$^{-1}$ for the beech site. These extremely high soil NO$_{X}$ emissions from a temperate forest most likely reflect the status of N saturation of the Höglwald Forest as a consequence of year-long heavy atmospheric N input. Multiple regression analyses revealed the following sequence of importance of environmental factors on NO flux: soil temperature to waterfilled pore space to soil NO$^{-}_{3}$ concentrations to soil NH$^{+}_{4}$ concentrations. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000097870
Veröffentlicht am 30.08.2019
DOI: 10.1029/1999JD900294
Zitationen: 98
Web of Science
Zitationen: 90
Zitationen: 103
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 08.1999
Sprache Englisch
Identifikator ISSN: 0148-0227, 2156-2202, 2169-897X, 2169-8996
KITopen-ID: 1000097870
HGF-Programm 12.02.01 (POF III, LK 01) Effects of land use and climate change
Weitere HGF-Programme 12.02.01 (POF III, LK 01) Effects of land use and climate change
Erschienen in Journal of geophysical research / D
Verlag John Wiley and Sons
Band 104
Heft D15
Seiten 18505–18520
Vorab online veröffentlicht am 01.08.1999
Nachgewiesen in Dimensions
Web of Science
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