Stange, Claus Florian

[["dc.bibliographiccitation.firstpage","483"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Biology and Fertility of Soils"],["dc.bibliographiccitation.lastpage","494"],["dc.bibliographiccitation.volume","47"],["dc.contributor.author","Jaeger, Nadine"],["dc.contributor.author","Stange, Claus Florian"],["dc.contributor.author","Ludwig, Bernard"],["dc.contributor.author","Flessa, Heiner"],["dc.date.accessioned","2018-11-07T08:54:37Z"],["dc.date.available","2018-11-07T08:54:37Z"],["dc.date.issued","2011"],["dc.description.abstract","Increasing organic matter stocks in soils reduce atmospheric carbon dioxide (CO2), but they may also promote emissions of nitrous oxide (N2O) by providing substrates for nitrification and denitrification and by increasing microbial O-2 consumption. The objectives of this study were to determine the effects of fertilization history, which had resulted in different soil organic matter stocks on (1) the emission rates of N2O and CO2 at a constant soil moisture content of 60% water-holding capacity, (2) the short-term fluxes of N2O and CO2 following the application of different fertilizers (KNO3 vs. farmyard manure from cattle) and (3) the response to a simulated heavy rainfall event, which increased soil moisture to field capacity. Soil samples from different treatments of three long-term fertilization experiments in Germany (Methau, Sproda and Bad Lauchstadt) were incubated in a laboratory experiment with continuous determination of N2O and CO2 emissions and a monitoring of soil mineral N. The long-term fertilization treatments included application of mineral N (Methau and Sproda), farmyard manure + mineral N (Methau and Sproda), farmyard manure deposition in excess (Bad Lauchstadt) and nil fertilization (Bad Lauchstadt). Long-term addition of farmyard manure increased the soil organic C (SOC) content by 55% at Methau (silt loam), by 17% at Sproda (sandy loam) and by 88% at Bad Lauchstadt (silt loam; extreme treatment which does not represent common agricultural management). Increased soil organic matter stocks induced by long-term application of farmyard manure at Methau and Sproda resulted in slightly increased N2O emissions at a soil moisture content of 60% water-holding capacity. However, the effect of fertilization history and SOC content on N2O emissions was small compared to the short-term effects induced by the current fertilizer application. At Bad Lauchstadt, high N2O emissions from the treatment without fertilization for 25 years indicate the importance of a sustainable soil organic matter management to maintain soil structure and soil aeration. Emissions of N2O following the application of nitrate and farmyard manure differed because of their specific effects on soil nitrate availability and microbial oxygen consumption. At a soil moisture content of 60% waterholding capacity, fertilizer-induced emissions were higher for farmyard manure than for nitrate. At field capacity, nitrate application induced the highest emissions. Our results indicate that feedback mechanisms of soil C sequestration on N2O emissions have to be considered when discussing options to increase soil C stocks."],["dc.description.sponsorship","German Research Association (Deutsche Forschungsgemeinschaft, DFG)"],["dc.identifier.doi","10.1007/s00374-011-0553-5"],["dc.identifier.isi","000292972400001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6608"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22711"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0178-2762"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Emission rates of N2O and CO2 from soils with different organic matter content from three long-term fertilization experiments-a laboratory study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","6077"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Analytical Chemistry"],["dc.bibliographiccitation.lastpage","6082"],["dc.bibliographiccitation.volume","89"],["dc.contributor.author","Eschenbach, Wolfram"],["dc.contributor.author","Lewicka-Szczebak, Dominika"],["dc.contributor.author","Stange, Claus Florian"],["dc.contributor.author","Dyckmans, Jens"],["dc.contributor.author","Well, Reinhard"],["dc.date.accessioned","2018-11-07T10:22:49Z"],["dc.date.available","2018-11-07T10:22:49Z"],["dc.date.issued","2017"],["dc.description.abstract","An automated sample preparation unit for inorganic nitrogen (SPIN) coupled to a membrane inlet quadrupole mass spectrometer (MIMS) was developed for automated and sensitive determination of the N-15 abundances and concentrations of nitrate, nitrite, and ammonium in aqueous solutions without any sample preparation. The minimum N concentration for an accurate determination of the N-15 abundance is 7 mu mol/L for nitrite and nitrate, with a relative standard deviation (RSD) of repeated measurements of <1%, and 70 mu mol/L with an RSD < 0.4% in the case of ammonium. The SPIN-MIMS system provides a wide dynamic range (up to 3500 mu mol/L) for all three N species for both isotope abundance and concentration measurements. The comparison of parallel measurements of N-15-labeled NH4+ and NO3- from soil extracts with the denitrifier method and the SPIN-MIMS system shows a good agreement between both methods."],["dc.description.sponsorship","Thunen-Institut; German Research Foundation [DY 81/5-1]"],["dc.identifier.doi","10.1021/acs.analchem.7b00724"],["dc.identifier.isi","000403036800059"],["dc.identifier.pmid","28481532"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42345"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Amer Chemical Soc"],["dc.relation.issn","1520-6882"],["dc.relation.issn","0003-2700"],["dc.title","Measuring N-15 Abundance and Concentration of Aqueous Nitrate, Nitrite, and Ammonium by Membrane Inlet Quadrupole Mass Spectrometry"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","67"],["dc.bibliographiccitation.journal","Atmospheric Environment"],["dc.bibliographiccitation.lastpage","78"],["dc.bibliographiccitation.volume","143"],["dc.contributor.author","Meurer, Katharina H. E."],["dc.contributor.author","Franko, Uwe"],["dc.contributor.author","Spott, Oliver"],["dc.contributor.author","Stange, Claus Florian"],["dc.contributor.author","Jungkunst, Hermann F."],["dc.date.accessioned","2018-11-07T10:08:07Z"],["dc.date.available","2018-11-07T10:08:07Z"],["dc.date.issued","2016"],["dc.description.abstract","Process-oriented models have become important tools in terms of quantification of environmental changes, for filling measurement gaps, and building of future scenarios. It is especially important to couple model application directly with measurements for remote areas, such as Southern Amazonia, where direct measurements are difficult to perform continuously throughout the year. Processes and resulting matter fluxes may show combinations of steady and sudden reactions to external changes. The potent greenhouse gas nitrous oxide (N2O) is known for its sensitivity to e.g. precipitation events, resulting in intense but short-term peak events (hot moments). These peaks have to be captured for sound balancing. However, prediction of the effect of rainfall events on N2O peaks is not trivial, even for areas under distinct wet and dry seasons. In this study, we used process-oriented models in both a pre- and post-measurement manner in order to (a) determine important periods for N2O-N emissions under Amazonian conditions and (b) calibrate the models to Brazilian pastures based on measured data of environment conditions (soil moisture and C-org) and measured N2O-N fluxes. During the measurement period (early wet season), observed emissions from three cattle pastures did not react to precipitation events, as proposed by the models. Here both process understanding and models have to be improved by long-term data in high resolution in order to prove or disprove a lacking of N2O-N peaks. We strongly recommend the application of models as planning tools for field campaigns, but we still suggest model combinations and simultaneous usage. (C) 2016 Elsevier Ltd. All rights reserved."],["dc.description.sponsorship","Federal Ministry for Education and Research (BMBF) [01LL0902F]"],["dc.identifier.doi","10.1016/j.atmosenv.2016.08.047"],["dc.identifier.isi","000383932400007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39410"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","1873-2844"],["dc.relation.issn","1352-2310"],["dc.title","Model testing for nitrous oxide (N2O) fluxes from Amazonian cattle pastures"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","409"],["dc.bibliographiccitation.issue","1-3"],["dc.bibliographiccitation.journal","Biogeochemistry"],["dc.bibliographiccitation.lastpage","422"],["dc.bibliographiccitation.volume","107"],["dc.contributor.author","Doerr, Nicole"],["dc.contributor.author","Kaiser, Klaus"],["dc.contributor.author","Sauheitl, Leopold"],["dc.contributor.author","Lamersdorf, Norbert P."],["dc.contributor.author","Stange, Claus Florian"],["dc.contributor.author","Guggenberger, Georg"],["dc.date.accessioned","2018-11-07T09:14:03Z"],["dc.date.available","2018-11-07T09:14:03Z"],["dc.date.issued","2012"],["dc.description.abstract","In the last decades, in particular forest ecosystems became increasingly N saturated due to elevated atmospheric N deposition, resulting from anthropogenic N emission. This led to serious consequences for the environment such as N leaching to the groundwater. Recent efforts to reduce N emissions raise the question if, and over what timescale, ecosystems recover to previous conditions. In order to study the effects on N distribution and N transformation processes under the lowered N deposition treatment, we investigated the fate of deposited NH4 (+)-N-15 in soil of a N-saturated Norway spruce forest (current N deposition: 34 kg ha(-1) year(-1); critical N load: 14 kg ha(-1) year(-1)), where N deposition has been reduced to 11.5 kg ha(-1) year(-1) since 14.5 years. We traced the deposited N-15 in needle litter, bulk soil, and amino acids, microbial biomass and inorganic N in soil. Under reduced N deposition, 123 +/- A 23% of the deposited N was retained in bulk soil, while this was only 72 +/- A 15% under ambient deposition. We presume that with reduced deposition the amount of deposited N was small enough to become completely immobilized in plant and soil and no leaching losses occurred. Trees receiving reduced N deposition showed a decline in N content as well as in N-15 incorporation into needle litter, indicating reduced N plant uptake. In contrast, the distribution of N-15 within the soil over active microbial biomass, microbial residues and inorganic N was not affected by the reduced N deposition. We conclude that the reduction in N deposition impacted only plant uptake and drainage losses, while microbial N transformation processes were not influenced. We assume changes in the biological N turnover to start with the onset of the decomposition of the new, N-depleted litter."],["dc.description.sponsorship","German Research Foundation [PAK 12, GU 406/14-1]"],["dc.identifier.doi","10.1007/s10533-010-9561-z"],["dc.identifier.isi","000298226700025"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7710"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27309"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0168-2563"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Fate of ammonium N-15 in a Norway spruce forest under long-term reduction in atmospheric N deposition"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]