Senbayram, Mehmet

[["dc.bibliographiccitation.firstpage","69"],["dc.bibliographiccitation.journal","Science of The Total Environment"],["dc.bibliographiccitation.lastpage","79"],["dc.bibliographiccitation.volume","660"],["dc.contributor.author","Senbayram, Mehmet"],["dc.contributor.author","Saygan, Ebru Pinar"],["dc.contributor.author","Chen, Ruirui"],["dc.contributor.author","Aydemir, Salih"],["dc.contributor.author","Kaya, Cengiz"],["dc.contributor.author","Wu, Di"],["dc.contributor.author","Bladogatskaya, Evgenia"],["dc.date.accessioned","2020-12-10T15:21:14Z"],["dc.date.available","2020-12-10T15:21:14Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1016/j.scitotenv.2018.12.300"],["dc.identifier.issn","0048-9697"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72956"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Effect of biochar origin and soil type on the greenhouse gas emission and the bacterial community structure in N fertilised acidic sandy and alkaline clay soil"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","221"],["dc.bibliographiccitation.journal","Biomass and Bioenergy"],["dc.bibliographiccitation.lastpage","229"],["dc.bibliographiccitation.volume","45"],["dc.contributor.author","Chen, Ruirui"],["dc.contributor.author","Blagodatskaya, Evgenia"],["dc.contributor.author","Senbayram, Mehmet"],["dc.contributor.author","Blagodatsky, Sergey A."],["dc.contributor.author","Myachina, Olga"],["dc.contributor.author","Dittert, Klaus"],["dc.contributor.author","Kuzyakov, Yakov"],["dc.date.accessioned","2018-11-07T09:05:19Z"],["dc.date.available","2018-11-07T09:05:19Z"],["dc.date.issued","2012"],["dc.description.abstract","The rapid development of biogas production will result in increased use of biogas residues as organic fertilizers. However, control of microbial activity by organic fertilizers remains a challenge for modern land use, especially with respect to mitigating greenhouse effects and increasing C sequestration in soil. To address this issue, we compared CO2 emissions, microbial growth and extracellular enzyme activities in agricultural soil amended with biogas residues (BGR) versus maize straw (MST). Over a 21 day incubation period, 6.4% of organic C added was mineralised and evolved as CO2 with BGR and 30% with MST. As shown by the substrate-induced growth respiration approach, BGR and MST significantly decreased the specific microbial growth rate (mu) and increased the microbial biomass C in the soil, indicating a clear shift in the microbial community to slower-growing microorganisms. Because of the reduced availability of C associated with the less labile C and more lignin in biogas residues, observed mu values and microbial biomass C were lower after BGR application than after MST application. After 21 days incubation, BGR had no effect on the activity of three extracellular enzymes: beta-glucosidase and cellobiohydrolase, both of which are involved in cellulose decomposition; and xylanase, which is involved in hemicellulose decomposition. In contrast, MST significantly increased the activity of these three enzymes. The application of biogas residues in short-term experiment leads to a 34% increase in soil C content and slower C turnover as compared to common maize residues. (c) 2012 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.biombioe.2012.06.014"],["dc.identifier.isi","000308384500024"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25289"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","0961-9534"],["dc.title","Decomposition of biogas residues in soil and their effects on microbial growth kinetics and enzyme activities"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2356"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Global Change Biology"],["dc.bibliographiccitation.lastpage","2367"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Chen, Ruirui"],["dc.contributor.author","Senbayram, Mehmet"],["dc.contributor.author","Blagodatsky, Sergey A."],["dc.contributor.author","Myachina, Olga"],["dc.contributor.author","Dittert, Klaus"],["dc.contributor.author","Lin, Xiangui"],["dc.contributor.author","Blagodatskaya, Evgenia"],["dc.contributor.author","Kuzyakov, Yakov"],["dc.date.accessioned","2018-11-07T09:38:28Z"],["dc.date.available","2018-11-07T09:38:28Z"],["dc.date.issued","2014"],["dc.description.abstract","The increasing input of anthropogenically derived nitrogen (N) to ecosystems raises a crucial question: how does available N modify the decomposer community and thus affects the mineralization of soil organic matter (SOM). Moreover, N input modifies the priming effect (PE), that is, the effect of fresh organics on the microbial decomposition of SOM. We studied the interactive effects of C and N on SOM mineralization (by natural C-13 labelling adding C-4-sucrose or C-4-maize straw to C-3-soil) in relation to microbial growth kinetics and to the activities of five hydrolytic enzymes. This encompasses the groups of parameters governing two mechanisms of priming effects -microbial N mining and stoichiometric decomposition theories. In sole C treatments, positive PE was accompanied by a decrease in specific microbial growth rates, confirming a greater contribution of K-strategists to the decomposition of native SOM. Sucrose addition with N significantly accelerated mineralization of native SOM, whereas mineral N added with plant residues accelerated decomposition of plant residues. This supports the microbial mining theory in terms of N limitation. Sucrose addition with N was accompanied by accelerated microbial growth, increased activities of beta-glucosidase and cellobiohydrolase, and decreased activities of xylanase and leucine amino peptidase. This indicated an increased contribution of r-strategists to the PE and to decomposition of cellulose but the decreased hemicellulolytic and proteolytic activities. Thus, the acceleration of the C cycle was primed by exogenous organic C and was controlled by N. This confirms the stoichiometric decomposition theory. Both K-and r-strategists were beneficial for priming effects, with an increasing contribution of K-selected species under N limitation. Thus, the priming phenomenon described in 'microbial N mining' theory can be ascribed to K-strategists. In contrast, 'stoichiometric decomposition' theory, that is, accelerated OM mineralization due to balanced microbial growth, is explained by domination of r-strategists."],["dc.identifier.doi","10.1111/gcb.12475"],["dc.identifier.isi","000337680700029"],["dc.identifier.pmid","24273056"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33072"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.relation.issn","1365-2486"],["dc.relation.issn","1354-1013"],["dc.title","Soil C and N availability determine the priming effect: microbial N mining and stoichiometric decomposition theories"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1223"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","BioEnergy Research"],["dc.bibliographiccitation.lastpage","1236"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Senbayram, Mehmet"],["dc.contributor.author","Chen, Ruirui"],["dc.contributor.author","Wienforth, Babette"],["dc.contributor.author","Herrmann, Antje"],["dc.contributor.author","Kage, Henning"],["dc.contributor.author","Muehling, Karl Hermann"],["dc.contributor.author","Dittert, Klaus"],["dc.date.accessioned","2018-11-07T09:32:10Z"],["dc.date.available","2018-11-07T09:32:10Z"],["dc.date.issued","2014"],["dc.description.abstract","There is a growing concern that greenhouse gas (GHG) emissions during agricultural energy crop production might negate GHG emission savings which was not intended when promoting the use of renewable energy. Nitrous oxide (N2O) is a major GHG, and in addition, it is the most powerful ozone-depleting compound that is emitted by human activity. The use of N fertilizers and animal manures is the main anthropogenic source of N2O emissions. In spite of their high relevance, we still have limited understanding of the complex underlying microbial processes that consume or produce N2O and their interactions with soil types, fertilizers (rate and types), plants, and other environmental variables. In a 2-year field experiment, we compared two important biogas crops in two different agro-ecological regions of northern Germany for their productivity and GHG emissions, using the closed-chamber technique and high time-resolution sampling. Silage maize, which is currently the most widespread crop grown for biogas fermentation purposes in Germany, was compared with an alternative bioenergy crop at each site. The three forms of nitrogen fertilizers/manures were given: calcium ammonium nitrate, cattle/pig slurry, and biogas residue. The greatest N2O flux activity occurred in the period of May-July in all crops and at both sites. Flux patterns indicated pronounced effects of soil moisture-soil mineral-N interactions which were also seen as causation of the higher N2O fluxes in the bioenergy crop maize compared to the other tested energy crops. However, the N2O emission per unit methane production (specific N2O emission) was clearly lower in soils planted with maize due to significantly higher methane hectare yield of maize. Our data suggest a linear relationship between increasing N input and increases in N2O emission in both years at site with sandy loam texture where highest N2O fluxes were measured. At sandy loam site, the percentage of applied N being emitted as N2O was 1.9 and 1.1 % in soils cropped with maize and 0.9 and 0.8 % in soils cropped with wheat during the investigation period 2007-2008 and 2008-2009, respectively. In contrast, at site with sandy soil texture, the percentage of applied N emitted as N2O was only 0.6 and 0.7 % in maize soils and 0.4 and 0.3 % in grassland during 2007-2008 and 2008-2009 period, respectively. Higher daily and annual N2O emissions at the sandy loam site were attributed to the finer soil texture and higher denitrification activity. The present study provides a very good basis for the assessment of direct emissions of greenhouse gases from relevant biogas crops in North-West Europe."],["dc.description.sponsorship","Schleswig-Holstein State Ministry of Economy and Science"],["dc.identifier.doi","10.1007/s12155-014-9456-2"],["dc.identifier.isi","000345584500015"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31689"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1939-1242"],["dc.relation.issn","1939-1234"],["dc.title","Emission of N2O from Biogas Crop Production Systems in Northern Germany"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]