Brumme, Rainer

[["dc.bibliographiccitation.firstpage","7079"],["dc.bibliographiccitation.issue","D6"],["dc.bibliographiccitation.journal","JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES"],["dc.bibliographiccitation.lastpage","7088"],["dc.bibliographiccitation.volume","105"],["dc.contributor.author","Borken, W."],["dc.contributor.author","Brumme, Rainer"],["dc.contributor.author","Xu, Y. J."],["dc.date.accessioned","2018-11-07T08:37:40Z"],["dc.date.available","2018-11-07T08:37:40Z"],["dc.date.issued","2000"],["dc.description.abstract","Our objective was to determine potential impacts of changes in rainfall amount and distribution on soil CH4 oxidation in a temperate forest ecosystem. We constructed a roof below the canopy of a 65-year-old Norway spruce forest (Picea abies (L.) Karst.) and simulated two climate change scenarios: (1) an extensively prolonged summer drought of 172 days followed by a rewetting period of 19 days in 1993 and (2) a less intensive summer drought of 108 days followed by a rewetting period of 33 days in 1994. CH4 oxidation, soil matric potential, and soil temperature were measured hourly to daily over a a-year period. The results showed that annual CH4 oxidation in the drought experiment increased by 102% for the climate change scenario 1 and by 41% for the climate change scenario 2, compared to those of the ambient plot (1.33 kg CH4 ha(-1) in 1993 and 1.65 kg CH4 ha(-1) in 1994). We tested the relationships between CH4 oxidation rates, water-filled pore space (WFPS), soil matric potential, gas diffusivity, and soil temperature. Temporal variability in the CH4 oxidation Fates corresponded most closely to soil matric potential. Employing soil matric potential and soil temperature, we developed a nonlinear model for estimating CH4 oxidation rates. Modeled results were in strong agreement with the measured CH4 oxidation for the ambient (r(2) = 0.80) and drought plots (r(2) = 0.89) over two experimental years, suggesting that soil matric potential is a highly reliable parameter for modeling CH4 oxidation rate."],["dc.identifier.doi","10.1029/1999JD901170"],["dc.identifier.isi","000086095000002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18591"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Geophysical Union"],["dc.relation.issn","2169-897X"],["dc.title","Effects of prolonged soil drought on CH4 oxidation in a temperate spruce forest"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","999"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Global Biogeochemical Cycles"],["dc.bibliographiccitation.lastpage","1019"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Del Grosso, S. J."],["dc.contributor.author","Parton, W. J."],["dc.contributor.author","Mosier, A. R."],["dc.contributor.author","Ojima, D. S."],["dc.contributor.author","Potter, C. S."],["dc.contributor.author","Borken, W."],["dc.contributor.author","Brumme, Rainer"],["dc.contributor.author","Butterbach-Bahl, K."],["dc.contributor.author","Crill, P. M."],["dc.contributor.author","Dobbie, K."],["dc.contributor.author","Smith, K. A."],["dc.date.accessioned","2018-11-07T10:37:51Z"],["dc.date.available","2018-11-07T10:37:51Z"],["dc.date.issued","2000"],["dc.description.abstract","Fluxes of methane from field observations of native and cropped grassland soils in Colorado and Nebraska were used to model CH4 oxidation as a function of soil water content, temperature, porosity, and field capacity (FC). A beta function is used to characterize the effect of soil water on the physical limitation of gas diffusivity when water is high and biological limitation when water is low. Optimum soil volumetric water content (W-opt) increases with FC. The site specific maximum CH4 oxidation rate (CH4max) varies directly with soil gas diffusivity (D) as a function of soil bulk density and FC. Although soil water content and physical pro are the primary controls on CH4 uptake, the potential for soil temperature to affect CH4 uptake rates increases as soils become less limited by gas diffusivity. Daily CH4 oxidation rate is calculated as the product of CH4max, the normalized (0-100%) beta function to account for water effects, a temperature multiplier, and an adjustment factor to account for the effects of agriculture on methane flux. The model developed with grassland soils also worked well in coniferous and tropical forest soils. However, soil gas diffusivity as a function of field capacity, and bulk density did not reliably predict maximum CH4 oxidation rates in deciduous forest soils, so a submodel for these systems was developed assuming that CH4max is a function of mineral soil bulk density. The overall model performed well with the data used for model development (r(2) = 0.76) and with independent data from grasslands, cultivated lands, and coniferous, deciduous, and tropical forests (r(2) = 0.73, mean error < 6%)."],["dc.identifier.isi","000166341000002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/45667"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Geophysical Union"],["dc.relation.issn","0886-6236"],["dc.title","General CH4 oxidation model and comparisons of CH4 oxidation in natural and managed systems"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","791"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Global Change Biology"],["dc.bibliographiccitation.lastpage","803"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Smith, K. A."],["dc.contributor.author","Dobbie, K. E."],["dc.contributor.author","Ball, B. C."],["dc.contributor.author","Bakken, L. R."],["dc.contributor.author","Sitaula, B. K."],["dc.contributor.author","Hansen, S."],["dc.contributor.author","Brumme, Rainer"],["dc.contributor.author","Borken, W."],["dc.contributor.author","Christensen, S."],["dc.contributor.author","Prieme, A."],["dc.contributor.author","Fowler, D."],["dc.contributor.author","Macdonald, J. A."],["dc.contributor.author","Skiba, U."],["dc.contributor.author","Klemedtsson, L."],["dc.contributor.author","Kasimir-Klemedtsson, A."],["dc.contributor.author","Degorska, A."],["dc.contributor.author","Orlanski, P."],["dc.date.accessioned","2018-11-07T09:34:20Z"],["dc.date.available","2018-11-07T09:34:20Z"],["dc.date.issued","2000"],["dc.description.abstract","This paper reports the range and statistical distribution of oxidation rates of atmospheric CH(4) in soils found in Northern Europe in an international study, and compares them with published data for various other ecosystems. It reassesses the size, and the uncertainty in, the global terrestrial CH(4) sink, and examines the effect of land-use change and other factors on the oxidation rate. Only soils with a very high water table were sources of CH(4); all others were sinks. Oxidation rates varied from 1 to nearly 200 mu g CH(4) m(-2) h(-1); annual rates for sites measured for greater than or equal to 1 y were 0.1-9.1 kg CH(4) ha(-1) y(-1), with a log-normal distribution (log-mean approximate to 1.6 kg CH(4) ha(-1) y(-1)). Conversion of natural soils to agriculture reduced oxidation rates by two-thirds - closely similar to results reported for other regions. N inputs also decreased oxidation rates. Full recovery of rates after these disturbances takes > 100 y. Soil bulk density, water content and gas diffusivity had major impacts on oxidation rates. Trends were similar to those derived from other published work. Increasing acidity reduced oxidation, partially but not wholly explained by poor diffusion through litter layers which did not themselves contribute to the oxidation. The effect of temperature was small, attributed to substrate limitation and low atmospheric concentration. Analysis of all available data for CH(4) oxidation rates in situ showed similar log-normal distributions to those obtained for our results, with generally little difference between different natural ecosystems, or between short-and longer-term studies. The overall global terrestrial sink was estimated at 29 Tg CH(4) y(-1), close to the current IPCC assessment, but with a much wider uncertainty range (7 to > 100 Tg CH(4) y(-1)). Little or no information is available for many major ecosystems; these should receive high priority in future research."],["dc.identifier.doi","10.1046/j.1365-2486.2000.00356.x"],["dc.identifier.isi","000089931300007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32150"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1354-1013"],["dc.title","Oxidation of atmospheric methane in Northern European soils, comparison with other ecosystems, and uncertainties in the global terrestrial sink"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","PII S0038-0717(02)00171-2"],["dc.bibliographiccitation.firstpage","1815"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Soil Biology and Biochemistry"],["dc.bibliographiccitation.lastpage","1819"],["dc.bibliographiccitation.volume","34"],["dc.contributor.author","Borken, W."],["dc.contributor.author","Beese, F."],["dc.contributor.author","Brumme, Rainer"],["dc.contributor.author","Lamersdorf, Norbert P."],["dc.date.accessioned","2018-11-07T09:54:43Z"],["dc.date.available","2018-11-07T09:54:43Z"],["dc.date.issued","2002"],["dc.description.abstract","Since 1991, polluted and 'cleaned' (to produce natural, unpolluted solution) throughfall has been applied to soil under roofed plots of the 70-year-old Norway spruce plantation at Solling, Germany. From January 1993 to January 1994 and from April 2000 to April 2001, methane (CH(4)) and nitrous oxide (N(2)O) fluxes were measured weekly or biweekly from roofed plots receiving unaltered rain or clean rain, and from an adjacent, ambient unroofed plot. No significant differences in either CH4 uptake or N(2)O emission rates were found after 7 years of treatments. From 2000 to 2001, cumulative CH(4) uptake rates were 1.67, 1.79 and 1.07 kg CH(4) ha(-1) yr(-1) in the clean rain, the control and the ambient plot, respectively. The cumulative N(2)O emissions were low and in the range of 0.25-0.41 kg N(2)O-N ha(-1) yr(-1) for all plots. Our results suggest (1) that the soil CH(4) sink was not reduced by high atmospheric nitrogen and acid deposition in the past, or alternatively, (2) recovery of degraded forest soils by methanotrophs may take some decades, (3) soil acidification and nitrogen eutrophication have a negligible effect on N(2)O emissions of temperate spruce forests. (C) 2002 Elsevier Science Ltd. All rights reserved."],["dc.identifier.doi","10.1016/S0038-0717(02)00171-2"],["dc.identifier.isi","000179996900031"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36600"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0038-0717"],["dc.title","Long-term reduction in nitrogen and proton inputs did not affect atmospheric methane uptake and nitrous oxide emission from a German spruce forest soil"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]