Paul, Shanty

[["dc.bibliographiccitation.firstpage","123"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Hydrological Processes"],["dc.bibliographiccitation.lastpage","132"],["dc.bibliographiccitation.volume","21"],["dc.contributor.author","Lischeid, G."],["dc.contributor.author","Kolb, A. K."],["dc.contributor.author","Alewell, C."],["dc.contributor.author","Paul, S."],["dc.date.accessioned","2018-11-07T11:06:40Z"],["dc.date.available","2018-11-07T11:06:40Z"],["dc.date.issued","2007"],["dc.description.abstract","Biologically mediated redox processes in the riparian zone, like denitrification, can have Substantially beneficial impacts on stream water quality. The extent of these effects, however. depends greatly oil the hydrological boundary conditions. The impact of hydrological processes oil a wetland's nitrogen sink capacity was investigated in a forested riparian fen which is drained by a first-order perennial stream. Here, we analysed the frequency distributions and time-series of pH and nitrogen, silica, organic carbon and oxygen concentrations in throughfall, soil solution, groundwater and stream water, and the groundwater levels and stream discharges from a 3-year period. During baseflow conditions, the stream was fed by discharging shallow, anoxic groundwater and by deep, oxic groundwater. Whereas the latter delivered considerable amounts of nitrogen (similar to 0-37 mg l(-1)) to the stream, the former was almost entirely depleted of nitrogen. During stormflow, near-surface runoff in the upper 30 cut soil layer bypassed the denitrifying zone and added significant amounts to the nitrogen load of the stream. Nitrate-nitro-en was close to 100% of deep groundwater and stream-water nitrogen concentration. Stream-water baseflow concentrations of nitrate, dissolved carbon and silica were about 1.6 mg l(-1), 4 mg l(-1) and 7.5 mg l(-1) respectively, and > 3 mg l(-1), > 10 mg l(-1) and < 4 mg l(-1) respectively during discharge peaks. In addition to that macroscale bypassing effect, there was evidence for a corresponding microscale effect: Shallow groundwater sampled by soil suction CLIPS indicated complete denitrification and lacked any seasonal signal Of Solute concentration, which was in contrast to piezometer samples from the same depth. Moreover, mean solute concentration in the piezometer samples resembled more that of suction-cup samples from shallower depth than that of the same depth. We conclude that the soil Solution CLIPS sampled to a large extent the immobile soil-water fraction. In contrast, the mobile fraction that was sampled by the piezometers exhibited substantially shorter residence time, thus being less exposed to denitrification, but predominating discharge of that layer to the stream. Consequently, assessing the nitrogen budget based on suction-cup data tended to overestimate the nitrogen consumption in the riparian wetland. These effects are likely to become more important with the increased frequency and intensity of rainstorms that are expected due to climate change. Copyright (c) 2006 John Wiley & Sons, Ltd."],["dc.identifier.doi","10.1002/hyp.6227"],["dc.identifier.isi","000243539500011"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/52370"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","John Wiley & Sons Ltd"],["dc.relation.issn","0885-6087"],["dc.title","Impact of redox and transport processes in a riparian wetland on stream water quality in the Fichtelgebirge region, southern Germany"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","154"],["dc.bibliographiccitation.issue","3-4"],["dc.bibliographiccitation.journal","CYTOGENETICS AND CELL GENETICS"],["dc.bibliographiccitation.lastpage","155"],["dc.bibliographiccitation.volume","89"],["dc.contributor.author","Looft, C."],["dc.contributor.author","Paul, S."],["dc.contributor.author","Thomsen, P. D."],["dc.contributor.author","Yerle, M."],["dc.contributor.author","Brenig, Bertram"],["dc.contributor.author","Kalm, E."],["dc.date.accessioned","2018-11-07T11:03:26Z"],["dc.date.available","2018-11-07T11:03:26Z"],["dc.date.issued","2000"],["dc.identifier.doi","10.1159/000015599"],["dc.identifier.isi","000088901600006"],["dc.identifier.pmid","10965109"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51620"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Karger"],["dc.relation.issn","0301-0171"],["dc.title","Isolation and assignment of the UDP-glucose pyrophosphorylase gene (UGP2) to porcine chromosome 3q21 -> q22 by FISH and by analysis of somatic cell and radiation hybrid panels"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","263"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Annals of Neurology"],["dc.bibliographiccitation.lastpage","267"],["dc.bibliographiccitation.volume","54"],["dc.contributor.author","Wiltfang, J."],["dc.contributor.author","Esselmann, Herrmann"],["dc.contributor.author","Smirnov, Alexey"],["dc.contributor.author","Bibl, Mirko"],["dc.contributor.author","Cepek, L."],["dc.contributor.author","Steinacker, Petra"],["dc.contributor.author","Mollenhauer, Brit"],["dc.contributor.author","Buerger, Katharina"],["dc.contributor.author","Hampel, Harald"],["dc.contributor.author","Paul, S."],["dc.contributor.author","Neumann, M."],["dc.contributor.author","Maler, M."],["dc.contributor.author","Zerr, I."],["dc.contributor.author","Kornhuber, Johannes"],["dc.contributor.author","Kretzschmar, Hans A."],["dc.contributor.author","Poser, Sigrid"],["dc.contributor.author","Otto, Markus"],["dc.date.accessioned","2018-11-07T10:37:04Z"],["dc.date.available","2018-11-07T10:37:04Z"],["dc.date.issued","2003"],["dc.description.abstract","Decreased levels of beta-amyloid peptide 1-42 (Abeta1-42) in cerebrospinal fluid (CSF) are a characteristic feature of Alzheimer's disease (AD) but recently were also observed in Creutzfeldt-Jakob disease (CJD). We analyzed the CSF of patients with CJD, and AD and nondemented controls using a quantitative urea-based Abeta sodium dodecyl sulfate polyacrylamide gel electrophoresis immunoblot. Like in AD and nondemented controls, we found a highly conserved pattern of carboxyterminally truncated Abeta1-37/38/39 in addition to Abeta1-40/42 also in CJD patients. By the introduction of the ratio Abeta1-39 to Abeta1-42, CJD and AD can effectively be differentiated. We conclude that the immunoblot shows disease-specific CSF Abeta peptide patterns in CJD and AD and suppose that measurement of the Abeta peptide pattern seems to be a promising diagnostic tool in the differential diagnosis of dementias."],["dc.identifier.doi","10.1002/ana.10661"],["dc.identifier.isi","000184352700021"],["dc.identifier.pmid","12891683"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/45476"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-liss"],["dc.relation.issn","0364-5134"],["dc.title","beta-Amyloid peptides in cerebrospinal fluid of patients with Creutzfeldt-Jakob disease"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Neurobiology of Aging"],["dc.bibliographiccitation.volume","23"],["dc.contributor.author","Esselmann, Herrmann"],["dc.contributor.author","Kunz, N."],["dc.contributor.author","Smirnov, Alexey"],["dc.contributor.author","Paul, S."],["dc.contributor.author","Dombek, M."],["dc.contributor.author","Ruether, Eckhart"],["dc.contributor.author","Wiltfang, J."],["dc.contributor.author","Maler, M."],["dc.contributor.author","Kornhuber, Johannes"],["dc.contributor.author","Otto, Markus"],["dc.contributor.author","Hampel, Harald"],["dc.contributor.author","Buerger, Katharina"],["dc.date.accessioned","2018-11-07T10:23:03Z"],["dc.date.available","2018-11-07T10:23:03Z"],["dc.date.issued","2002"],["dc.format.extent","S17"],["dc.identifier.isi","000177465300067"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42384"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.publisher.place","New york"],["dc.relation.issn","0197-4580"],["dc.title","Primary cell culture of chicken telencephalon: A model to study the catabolic processing of endogenous amyloid precursor protein and abeta peptides"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Pharmacopsychiatry"],["dc.bibliographiccitation.volume","38"],["dc.contributor.author","Maler, Juan Manuel"],["dc.contributor.author","Esselmann, Herrmann"],["dc.contributor.author","Dyrks, T."],["dc.contributor.author","Klafki, H."],["dc.contributor.author","Fiszer, M."],["dc.contributor.author","Paul, S."],["dc.contributor.author","Reulbach, Udo"],["dc.contributor.author","Lewczuk, Piotr"],["dc.contributor.author","Ruther, Eckart"],["dc.contributor.author","Kornhuber, Johannes"],["dc.contributor.author","Wiltfang, J."],["dc.date.accessioned","2018-11-07T10:56:36Z"],["dc.date.available","2018-11-07T10:56:36Z"],["dc.date.issued","2005"],["dc.format.extent","262"],["dc.identifier.isi","000232591900164"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50051"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Georg Thieme Verlag Kg"],["dc.publisher.place","Stuttgart"],["dc.relation.conference","24th Symposium of the Arbeitsgemeinschaft-fur-Neuropsychopharmakologie-und-Pharmakopsychiatrie (AGNP)"],["dc.relation.eventlocation","Munich, GERMANY"],["dc.relation.issn","0176-3679"],["dc.title","Specific inhibition of beta-amyloid peptide secretion by ZK808762 mimicks the effect of non-steroidal antiinflammatory drugs"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Neurobiology of Aging"],["dc.bibliographiccitation.volume","23"],["dc.contributor.author","Wiltfang, J."],["dc.contributor.author","Esselmann, Herrmann"],["dc.contributor.author","Bibl, Mirko"],["dc.contributor.author","Smirnov, Alexey"],["dc.contributor.author","Paul, S."],["dc.contributor.author","Ruether, Eckhart"],["dc.contributor.author","Otto, Markus"],["dc.contributor.author","Schmidt, B."],["dc.contributor.author","Klafki, H. W."],["dc.contributor.author","Maler, M."],["dc.contributor.author","Kornhuber, Johannes"],["dc.contributor.author","Dyrks, T."],["dc.contributor.author","Bienert, M."],["dc.contributor.author","Beyermann, M."],["dc.date.accessioned","2018-11-07T10:23:20Z"],["dc.date.available","2018-11-07T10:23:20Z"],["dc.date.issued","2002"],["dc.format.extent","S275"],["dc.identifier.isi","000177465301009"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42438"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Inc"],["dc.publisher.place","New york"],["dc.relation.issn","0197-4580"],["dc.title","Highly conserved and disease-specific patterns of carboxyterminally truncated abeta peptides 1-37/38/39 in addition to 1-40/42 in Alzheimer's disease and in patients with chronic neuroinflammation"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","236"],["dc.bibliographiccitation.issue","4-5"],["dc.bibliographiccitation.journal","Neurodegenerative Diseases"],["dc.bibliographiccitation.lastpage","241"],["dc.bibliographiccitation.volume","1"],["dc.contributor.author","Esselmann, Hermann"],["dc.contributor.author","Maler, J. M."],["dc.contributor.author","Kunz, N."],["dc.contributor.author","Otto, Markus"],["dc.contributor.author","Paul, S."],["dc.contributor.author","Lewczuk, Piotr"],["dc.contributor.author","Rüther, Eckart"],["dc.contributor.author","Kornhuber, Johannes"],["dc.contributor.author","Wiltfang, Jens"],["dc.date.accessioned","2017-09-07T11:44:27Z"],["dc.date.available","2017-09-07T11:44:27Z"],["dc.date.issued","2004"],["dc.description.abstract","We studied endogenous amyloid precursor protein (APP) processing and amyloid beta (Aβ) peptide formation in primary chicken telencephalic neurons, because their Aβ peptide sequence is identical to humans. As detected by quantitative Aβ-SDS-PAGE/immunoblot, Aβ peptides 1–40/42 and three additional C-truncated species, namely Aβ1–37/38/39 were regularly released into the supernatant. The highly conserved Aβ quintet strongly resembles the pattern of Aβ peptides found in human cerebrospinal fluid. Furthermore, the C-terminally shorter Aβ peptides 1–33/34 could be readily detected. Recent evidence indicates that lithium specifically inhibits secretion of the amyloidogenic Aβ1–42 peptide in cultured permanent cells transfected with human APP. We therefore investigated the effect of lithium on Aβ peptide secretion as well as intracellular Aβ peptides in our untransfected primary cell culture system. Our data shows that lithium leads to a dose-dependent reduction of Aβ1–37/38/39/40/42 secretion. Surprisingly, intracellular analysis revealed that lithium specifically increases a band comigrating with synthetic Aβ1–38 while Aβ1–40 and Aβ1–42 remained almost unaffected. These results demonstrate for the first time that lithium treatment decreases Aβ peptide secretion in primary chicken neuronal cells but specifically elevates intracellular Aβ1–38. Therefore, we conclude that there are two independent mechanisms of lithium in intra- and extracellular Aβ peptide production."],["dc.identifier.doi","10.1159/000080992"],["dc.identifier.gro","3151670"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/8488"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","chake"],["dc.relation.issn","1660-2854"],["dc.title","Lithium Decreases Secretion of Aβ1–42 and C-Truncated Species Aβ1–37/38/39/40 in Chicken Telencephalic Cultures but Specifically Increases Intracellular Aβ1–38"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","335"],["dc.bibliographiccitation.issue","2-3"],["dc.bibliographiccitation.journal","The Science of The Total Environment"],["dc.bibliographiccitation.lastpage","342"],["dc.bibliographiccitation.volume","404"],["dc.contributor.author","Alewell, C."],["dc.contributor.author","Paul, S."],["dc.contributor.author","Lischeid, G."],["dc.contributor.author","Storck, F. R."],["dc.date.accessioned","2018-11-07T11:10:03Z"],["dc.date.available","2018-11-07T11:10:03Z"],["dc.date.issued","2008"],["dc.description.abstract","Wetlands have important filter functions in landscapes but are considered to be the biggest unknowns regarding their element dynamics under global climate change. Information on sink and source function of sulphur, nitrogen, organic matter and acidity in wetlands is crucial for freshwater regeneration. Recent results indicate that redox processes are not completely controlled by the sequential reduction chain (that is electron acceptor availability) but that electron donor availability may be an important regulator. Our hypothesis was that only sites which are limited in their electron donor availability low concentrations of dissolved organic carbon (DOC)) follow the concept of the sequential reduction chain. We compared the results of two freshwater wetland systems: 1) three forested fens within a boreal spruce catchment in a low mountain range in southern Germany (high DOC regime) and 2) three floodplain soils within a groundwater enrichment area in the Rhein valley in northwest Switzerland (low DOC regime). Micro scale investigations (a few cm) with dialyse chambers as well as soil solution and groundwater concentrations at the forested fens (high DOC regime) indicated simultaneous consumption of nitrate and sulphate with release of iron, manganese and methane (CH4) as well as an enrichment in stable sulphur isotopes indicating a co-existence of processes attributed to different redox gradients. Soil and aquifer gas measurements down to 4.6 m at the groundwater enrichment site (low DOC regime and carbon limitation) showed extreme high rates of metabolism with carbon dioxide (CO2), dinitrous oxide (N2O) and CH4 concentrations reaching fifty, thirty and three times atmospheric concentrations, respectively. Simultaneously, groundwater oxygen (O-2) saturation was between 50 and 95%. We concluded that independent of DOC regime the sequential reduction chain was not a suitable concept in our systems. Instead of electron acceptor or donor availability micro site variability might explain the co-existence of redox processes within our sites. (C) 2007 Elsevier B.V. All rights reserved."],["dc.identifier.doi","10.1016/j.scitotenv.2007.11.001"],["dc.identifier.isi","000260701900015"],["dc.identifier.pmid","18054998"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/53132"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.publisher.place","Amsterdam"],["dc.relation.conference","5th International Symposium on Ecosystem Behavior"],["dc.relation.eventlocation","Univ Calf Santa Cruz, Santa Cruz, CA"],["dc.relation.issn","0048-9697"],["dc.title","Co-regulation of redox processes in freshwater wetlands as a function of organic matter availability?"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","320"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Tree Physiology"],["dc.bibliographiccitation.lastpage","339"],["dc.bibliographiccitation.volume","38"],["dc.contributor.author","Wildhagen, Henning"],["dc.contributor.author","Paul, Shanty"],["dc.contributor.author","Allwright, Mike"],["dc.contributor.author","Smith, Hazel K."],["dc.contributor.author","Malinowska, Marta"],["dc.contributor.author","Schnabel, Sabine K."],["dc.contributor.author","Paulo, M. João"],["dc.contributor.author","Cattonaro, Federica"],["dc.contributor.author","Vendramin, Vera"],["dc.contributor.author","Scalabrin, Simone"],["dc.contributor.author","Janz, Dennis"],["dc.contributor.author","Douthe, Cyril"],["dc.contributor.author","Brendel, Oliver"],["dc.contributor.author","Buré, Cyril"],["dc.contributor.author","Cohen, David"],["dc.contributor.author","Hummel, Irène"],["dc.contributor.author","Le Thiec, Didier"],["dc.contributor.author","van Eeuwijk, Fred"],["dc.contributor.author","Keurentjes, Joost J. B."],["dc.contributor.author","Flexas, Jaume"],["dc.contributor.author","Morgante, Michele"],["dc.contributor.author","Robson, Paul"],["dc.contributor.author","Bogeat-Triboulot, Marie-Béatrice"],["dc.contributor.author","Taylor, Gail"],["dc.contributor.author","Polle, Andrea"],["dc.date.accessioned","2018-02-22T11:05:35Z"],["dc.date.available","2018-02-22T11:05:35Z"],["dc.date.issued","2018"],["dc.description.abstract","Wood is a renewable resource that can be employed for the production of second generation biofuels by enzymatic saccharification and subsequent fermentation. Knowledge on how the saccharification potential is affected by genotype-related variation of wood traits and drought is scarce. Here, we used three Populus nigra L. genotypes from habitats differing in water availability to (i) investigate the relationships between wood anatomy, lignin content and saccharification and (ii) identify genes and co-expressed gene clusters related to genotype and drought-induced variation in wood traits and saccharification potential. The three poplar genotypes differed in wood anatomy, lignin content and saccharification potential. Drought resulted in reduced cambial activity, decreased vessel and fiber lumina, and increased the saccharification potential. The saccharification potential was unrelated to lignin content as well as to most wood anatomical traits. RNA sequencing of the developing xylem revealed that 1.5% of the analyzed genes were differentially expressed in response to drought, while 67% differed among the genotypes. Weighted gene correlation network analysis identified modules of co-expressed genes correlated with saccharification potential. These modules were enriched in gene ontology terms related to cell wall polysaccharide biosynthesis and modification and vesicle transport, but not to lignin biosynthesis. Among the most strongly saccharification-correlated genes, those with regulatory functions, especially kinases, were prominent. We further identified transcription factors whose transcript abundances differed among genotypes, and which were co-regulated with genes for biosynthesis and modifications of hemicelluloses and pectin. Overall, our study suggests that the regulation of pectin and hemicellulose metabolism is a promising target for improving wood quality of second generation bioenergy crops. The causal relationship of the identified genes and pathways with saccharification potential needs to be validated in further experiments."],["dc.identifier.doi","10.1093/treephys/tpx054"],["dc.identifier.pmid","28541580"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12424"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.eissn","1758-4469"],["dc.title","Genes and gene clusters related to genotype and drought-induced variation in saccharification potential, lignin content and wood anatomical traits in Populus nigra†"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","359"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","European Journal of Soil Science"],["dc.bibliographiccitation.lastpage","371"],["dc.bibliographiccitation.volume","59"],["dc.contributor.author","Paul, S."],["dc.contributor.author","Veldkamp, Edzo"],["dc.contributor.author","Flessa, H."],["dc.date.accessioned","2017-09-07T11:43:36Z"],["dc.date.available","2017-09-07T11:43:36Z"],["dc.date.issued","2008"],["dc.description.abstract","Our knowledge of effects of land use changes and soil types on the storage and stability of different soil organic carbon (SOC) fractions in the tropics is limited. We analysed the effect of land use (natural forest, pasture, secondary forest) on SOC storage (depth 0–0.1 m) in density fractions of soils developed on marine Tertiary sediments and on volcanic ashes in the humid tropics of northwest Ecuador. The origin of organic carbon stored in free light (< 1.6 g cm−3) fractions, and in two light fractions (LF) occluded within aggregates of different stability, was determined by means of δ13C natural abundance. Light occluded organic matter was isolated in a first step after aggregate disruption by shaking aggregates with glass pearls (occluded I LF) and in a subsequent step by manual destruction of the most stable microaggregates that survived the first step (occluded II LF). SOC storage in LFs was greater in volcanic ash soils (7.6 ± 0.6 Mg C ha−1) than in sedimentary soils (4.3 ± 0.3 Mg C ha−1). The contribution of the LFs to SOC storage was greater in natural forest (19.2 ± 1.2%) and secondary forest (16.6 ± 1.0%) than in pasture soils (12.8 ± 1.0%), independent of soil parent material. The amount of SOC stored in the occluded I LF material increased with increasing silt + clay content (sedimentary soils, r = 0.73; volcanic ash soils, r = 0.58) and aggregation (sedimentary soils, r = 0.52; volcanic ash soils, r = 0.45). SOC associated with occluded I LF, had the smallest proportion of new, pasture-derived carbon, indicating the stabilizing effect of aggregation. Fast turnover of the occluded II LF material, which was separated from highly stable microaggregates, strongly suggested that this fraction is important in the initial process of aggregate formation. No pasture-derived carbon could be detected in any density fractions of volcanic ash soils under secondary forest, indicating fast turnover of these fractions in tropical volcanic ash soils."],["dc.identifier.doi","10.1111/j.1365-2389.2007.01010.x"],["dc.identifier.gro","3150190"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6927"],["dc.language.iso","en"],["dc.notes.status","public"],["dc.relation.issn","1351-0754"],["dc.title","Soil organic carbon in density fractions of tropical soils under forest – pasture – secondary forest land use changes"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]