Fender, Ann-Catrin

[["dc.bibliographiccitation.firstpage","23"],["dc.bibliographiccitation.journal","Soil Biology and Biochemistry"],["dc.bibliographiccitation.lastpage","32"],["dc.bibliographiccitation.volume","61"],["dc.contributor.author","Cesarz, Simone"],["dc.contributor.author","Fender, Ann-Catrin"],["dc.contributor.author","Beyer, Friderike"],["dc.contributor.author","Valtanen, Kerttu"],["dc.contributor.author","Pfeiffer, Birgit"],["dc.contributor.author","Gansert, Dirk"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Polle, Andrea"],["dc.contributor.author","Daniel, Rolf"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2017-09-07T11:49:12Z"],["dc.date.available","2017-09-07T11:49:12Z"],["dc.date.issued","2013"],["dc.description.abstract","Knowledge about the influence of living roots on decomposition processes in soil is scarce but is needed to understand carbon dynamics in soil. We investigated the effect of dominant deciduous tree species of the Central European forest vegetation, European beech (Fagus sylvatica L.) and European ash (Fraxinus excelsior L.), on soil biota and carbon dynamics differentiating between root- and leaf litter-mediated effects. The influence of beech and ash seedlings on carbon and nitrogen flow was investigated using leaf litter enriched in 13C and 15N in double split-root rhizotrons planted with beech and ash seedlings as well as a mixture of both tree species and a control without plants. Stable isotope and compound-specific fatty acid analysis (13C-PLFA) were used to follow the incorporation of stable isotopes into microorganisms, soil animals and plants. Further, the bacterial community composition was analyzed using pyrosequencing of 16S rRNA gene amplicons. Although beech root biomass was significantly lower than that of ash only beech significantly decreased soil carbon and nitrogen concentrations after 475 days of incubation. In addition, beech significantly decreased microbial carbon use efficiency as indicated by higher specific respiration. Low soil pH probably increased specific respiration of bacteria suggesting that rhizodeposits of beech roots induced increased microbial respiration and therefore carbon loss from soil. Compared to beech δ13C and δ15N signatures of gamasid mites in ash rhizotrons were significantly higher indicating higher amounts of litter-derived carbon and nitrogen to reach higher trophic levels. Similar δ13C signatures of bacteria and fine roots indicate that mainly bacteria incorporated root-derived carbon in beech rhizotrons. The results suggest that beech and ash differentially impact soil processes with beech more strongly affecting the belowground system via root exudates and associated changes in rhizosphere microorganisms and carbon dynamics than ash."],["dc.identifier.doi","10.1016/j.soilbio.2013.02.003"],["dc.identifier.gro","3147219"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/4851"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0038-0717"],["dc.title","Roots from beech (Fagus sylvatica L.) and ash (Fraxinus excelsior L.) differentially affect soil microorganisms and carbon dynamics"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","587"],["dc.bibliographiccitation.journal","Soil Biology and Biochemistry"],["dc.bibliographiccitation.lastpage","597"],["dc.bibliographiccitation.volume","57"],["dc.contributor.author","Fender, Ann-Catrin"],["dc.contributor.author","Gansert, Dirk"],["dc.contributor.author","Jungkunst, Hermann F."],["dc.contributor.author","Fiedler, Sabine"],["dc.contributor.author","Beyer, Friderike"],["dc.contributor.author","Schützenmeister, Klaus"],["dc.contributor.author","Thiele, Björn"],["dc.contributor.author","Valtanen, Kerttu"],["dc.contributor.author","Polle, Andrea"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2017-09-07T11:49:18Z"],["dc.date.available","2017-09-07T11:49:18Z"],["dc.date.issued","2013"],["dc.description.abstract","Through their leaf litter and throughfall water, tree species can have a pronounced influence on soil chemistry. However, there is little knowledge of species-specific root effects on greenhouse gas fluxes between forest soils and the atmosphere. By growing saplings of beech (Fagus sylvatica) and ash (Fraxinus excelsior) in monoculture or mixture at defined atmospheric and soil conditions in rhizotrons, we tested four hypotheses related to potential root-induced tree species effects on the uptake of CH4 and the emission of N2O and CO2 from the soil. This design excluded putative effects of leaf litter mineralisation on trace gas fluxes. Gas fluxes were measured biweekly using the closed chamber technique; the CO2 derived from root respiration was estimated, and the concentration of organic acids in the rhizosphere solution was analysed. Rhizotrons planted with ash took up significantly more CH4 and emitted less N2O than control rhizotrons without plants. CH4 and N2O fluxes from beech rhizotrons did not differ from the root-free control but were significantly smaller (CH4) or higher (N2O) than the fluxes from the ash treatment. While root respiration of ash was higher than of beech, root-induced soil respiration was higher in the rhizosphere of beech roots. The concentration of organic acids tended to be higher in the rhizosphere of beech and also the composition was different from that of ash. We conclude that tree species identity may substantially alter the soil source/sink strength for greenhouse gases through root-related processes."],["dc.identifier.doi","10.1016/j.soilbio.2012.08.004"],["dc.identifier.gro","3147247"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/4880"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0038-0717"],["dc.title","Root-induced tree species effects on the source/sink strength for greenhouse gases (CH4, N2O and CO2) of a temperate deciduous forest soil"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","7"],["dc.bibliographiccitation.journal","European Journal of Soil Biology"],["dc.bibliographiccitation.lastpage","15"],["dc.bibliographiccitation.volume","54"],["dc.contributor.author","Fender, Ann-Catrin"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Schützenmeister, Klaus"],["dc.contributor.author","Gansert, Dirk"],["dc.contributor.author","Jungkunst, Hermann F."],["dc.date.accessioned","2018-10-25T14:19:54Z"],["dc.date.available","2018-10-25T14:19:54Z"],["dc.date.issued","2013"],["dc.description.abstract","Previous research has shown that N2O emissions from forest soils can vary considerably with forest type. It is not yet known whether these variations are mainly reflecting differences between needle-leaved and broad-leaved forests or if there are also flux differences among different broad-leaved tree species. Furthermore, it remains unclear if these differences are merely caused by species-specific leaf litter effects, or whether root-related traits are also influential. We conducted two laboratory experiments with soil from a temperate broad-leaved forest to examine the effects of ash saplings (Fraxinus excelsior L.) on N2O emissions at ambient and high nitrate availability (experiment A), and to compare the effects of ash, beech (Fagus sylvatica L.) and ash/beech mixture on N2O emissions (experiment B). In both experiments, a large reduction in N2O efflux was found for the ash treatments as compared to root-free soil (by 94% at ambient nitrate availability and by 98% after the addition of 200 kg N ha−1 KNO3). The suppressing effect of ash saplings was larger than the stimulating effect of nitrate addition on N2O emissions. Soil planted with beech saplings tended to reduce N2O emissions as well, but the non-significant effect was much smaller than the ash effect. Our study provides evidence that species-specific rhizosphere effects can have a substantial influence on the emission of greenhouse gases from forest soils, which have to be considered in addition to leaf litter effects."],["dc.identifier.doi","10.1016/j.ejsobi.2012.10.010"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16106"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Rhizosphere effects of tree species – Large reduction of N2O emission by saplings of ash, but not of beech, in temperate forest soil"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","621"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Biology and Fertility of Soils"],["dc.bibliographiccitation.lastpage","631"],["dc.bibliographiccitation.volume","48"],["dc.contributor.author","Fender, Ann-Catrin"],["dc.contributor.author","Pfeiffer, Birgit"],["dc.contributor.author","Gansert, Dirk"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Daniel, Rolf"],["dc.contributor.author","Jungkunst, Hermann F."],["dc.date.accessioned","2018-11-07T09:07:49Z"],["dc.date.available","2018-11-07T09:07:49Z"],["dc.date.issued","2012"],["dc.description.abstract","Upland soils are the most important terrestrial sink for the greenhouse gas CH4. The oxidation of CH4 is highly influenced by reactive N which is increasingly added to many ecosystems by atmospheric deposition and thereby also alters the labile C pool in the soils. The interacting effects of soil N availability and the labile C pool on CH4 oxidation are not well understood. We conducted a laboratory experiment with soil columns consisting of homogenised topsoil material from a temperate broad-leaved forest to study the net CH4 flux under the combined or isolated addition of NO (3) (-) and glucose as a labile C source. Addition of NO (3) (-) and glucose reduced the net CH4 uptake of the soil by 86% and 83%, respectively. The combined addition of both agents led to a nearly complete inhibition of CH4 uptake (reduction by 99.4%). Our study demonstrates a close link between the availability of C and N and the rate of CH4 oxidation in temperate forest soils. Continued deposition of NO (3) (-) has the potential to reduce the sink strength of temperate forest soils for CH4."],["dc.description.sponsorship","Ministry of Science and Culture of Lower Saxony; Niedersachsisches Vorab"],["dc.identifier.doi","10.1007/s00374-011-0660-3"],["dc.identifier.isi","000306738900002"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8803"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25889"],["dc.language.iso","en"],["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","The inhibiting effect of nitrate fertilisation on methane uptake of a temperate forest soil is influenced by labile carbon"],["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"]]