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  <doc>
    <id>19926</id>
    <completedYear/>
    <publishedYear>2017</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>European Geophysical Society</publisherName>
    <publisherPlace>Katlenburg-Lindau</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation>University of Connecticut, Department of Geography and Center for Integrative Geosciences, Williams College, Department of Geosciences</contributingCorporation>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2017-05-03</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Soils on historic charcoal hearths – chemical properties and terminology</title>
    <abstract language="eng">Charcoal hearths are a unique archive for the long term interaction between biochar, soil development and plant&#13;
growth. Charcoal as raw material was crucial for the production of iron in iron works and hence numerous charcoal&#13;
hearths can be found in the forests near historic iron works in Europe as well as the Eastern United States. Charcoal&#13;
hearths are round to elliptical forms often around 10 m in diameter, and consisting of a several decimeter thick layer containing charcoal fragments, ash, and burnt soil. We studied the soil chemistry of 24 charcoal hearths and&#13;
compared them to the surrounding ‘natural’ soils in  Litchfield County, Connecticut. The thickness of the organic&#13;
rich horizons on the charcoal hearths and their carbon content is remarkably higher than in the surrounding topsoils. The wide distribution of charcoal hearths, their usually high quantity, and their occurrence in different ecosystems underlines their importance for further pedological research.</abstract>
    <parentTitle language="eng">European Geosciences Union, General Assembly 2017, Vienna, Austria</parentTitle>
    <identifier type="urn">http://meetingorganizer.copernicus.org/EGU2017/EGU2017-4009-1.pdf</identifier>
    <note>EGU2017-4009-1</note>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <enrichment key="UBICOseries">Geophysical Research Abstracts ; 19</enrichment>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <submitter>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </submitter>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <author>
      <firstName>David</firstName>
      <lastName>Dethier</lastName>
    </author>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
  </doc>
  <doc>
    <id>20028</id>
    <completedYear/>
    <publishedYear>2017</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>79</pageFirst>
    <pageLast>81</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>GFZ German Research Centre for Geosciences</publisherName>
    <publisherPlace>Potsdam</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2017-06-01</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Late Holocene biochar enrichment in soils ‐ implications of an anthropogenic legacy for ecosystems</title>
    <parentTitle language="eng">ICLEA Final Symposium 2017, Human Impact and Landscape Evolution in the Southern Baltic Lowlands, Abstract Volume &amp; Excursion Guide</parentTitle>
    <identifier type="url">http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:2215927</identifier>
    <identifier type="doi">10.2312/GFZ.b103-17037</identifier>
    <enrichment key="UBICOseries">Scientific Technical Report STR ; 17,03</enrichment>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <submitter>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </submitter>
    <editor>
      <firstName>Markus</firstName>
      <lastName>Schwab</lastName>
    </editor>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <editor>
      <firstName>Mirek</firstName>
      <lastName>Błaszkiewicz</lastName>
    </editor>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <editor>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </editor>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <editor>
      <firstName>Martin</firstName>
      <lastName>Wilmking</lastName>
    </editor>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <editor>
      <firstName>Achim</firstName>
      <lastName>Brauer</lastName>
    </editor>
    <author>
      <firstName>David</firstName>
      <lastName>Dethier</lastName>
    </author>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
  </doc>
  <doc>
    <id>20205</id>
    <completedYear/>
    <publishedYear>2017</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1427</pageFirst>
    <pageLast>1435</pageLast>
    <pageNumber/>
    <edition/>
    <issue>6</issue>
    <volume>81</volume>
    <type>articler</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation>University of Connecticut, Department of Geography and Center for Integrative Geosciences, Storrs, Connecticut; Williams College, Geosciences Department, Williamstown, Massachusetts</contributingCorporation>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2017-08-05</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Soils on historic charcoal hearths - terminology and chemical properties</title>
    <abstract language="eng">Historic charcoal hearth remains provide a unique archive of the long term interaction between biochar, soil development and plant growth. Charcoal as raw material was crucial for production of iron in iron works and hence numerous charcoal hearths can be found in the forests near historic iron works in Europe as well as the Eastern United States. Charcoal hearths are round to elliptical forms often around 10 m in diameter, and consist of several decimeter thick layers that contain charcoal fragments, ash, and burnt soil. We studied the soil chemistry of 24 charcoal hearths and compared them to the surrounding ‘natural’ soils in the northern Appalachians of northwestern Connecticut. The thickness of the topsoils on the charcoal hearths and their carbon content are remarkably higher than in the surrounding topsoils. The presence of residual products from charcoal production classifies the soils as Anthropic Udorthents (US Soil Taxonomy) or Spolic Technosols (Humic) according to the World Reference Base for Soil Resources. The widespread occurrence of charcoal hearth remains and their high spatial density in different ecosystems underlines their importance for further pedological research.</abstract>
    <parentTitle language="eng">Soil Science Society of America Journal : SSSAJ</parentTitle>
    <identifier type="issn">1435-0661</identifier>
    <identifier type="issn">0361-5995</identifier>
    <identifier type="doi">10.2136/sssaj2017.02.0067</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <submitter>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </submitter>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <author>
      <firstName>David</firstName>
      <lastName>Dethier</lastName>
    </author>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>biochar</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>pedogenesis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>land use</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>carbon sink</value>
    </subject>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
  </doc>
  <doc>
    <id>23506</id>
    <completedYear/>
    <publishedYear>2019</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject_noref</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2019-02-13</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Soils on Historic Charcoal Hearths: Terminology and Chemical Properties</title>
    <parentTitle language="eng">Soil Science Society of America, International Soils Meeting, Soils Across Latitudes, San Diego 2019</parentTitle>
    <identifier type="url">https://scisoc.confex.com/scisoc/2019sssa/meetingapp.cgi/Paper/114844</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <submitter>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </submitter>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <author>
      <firstName>David</firstName>
      <lastName>Dethier</lastName>
    </author>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
  </doc>
  <doc>
    <id>23507</id>
    <completedYear/>
    <publishedYear>2019</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject_noref</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2019-02-13</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Effects of Historical Charcoal Burning on Soil Landscapes in West Connecticut, USA</title>
    <parentTitle language="eng">Soil Science Society of America, International Soils Meeting, Soils Across Latitudes, San Diego 2019</parentTitle>
    <identifier type="url">https://scisoc.confex.com/scisoc/2019sssa/meetingapp.cgi/Paper/114845</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <author>
      <firstName>Alexander</firstName>
      <lastName>Bonhage</lastName>
    </author>
    <submitter>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </submitter>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <author>
      <firstName>Patrick J.</firstName>
      <lastName>Drohan</lastName>
    </author>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
  </doc>
  <doc>
    <id>23988</id>
    <completedYear/>
    <publishedYear>2019</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject_noref</type>
    <publisherName/>
    <publisherPlace>Katlenburg-Lindau</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2019-04-25</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Effects of historical charcoal burning on soil landscapes in West Connecticut - Quantifying pyrogenic and organic soil carbon content of Technosols by FTIR analysis</title>
    <parentTitle language="eng">European Geosciences Union, General Assembly 2019, Vienna, Austria,  7–12 April 2019</parentTitle>
    <identifier type="url">https://meetingorganizer.copernicus.org/EGU2019/EGU2019-3115.pdf</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <enrichment key="Artikelnummer">EGU2019-3115</enrichment>
    <enrichment key="UBICOseries">Geophysical Research Abstracts ; 21</enrichment>
    <author>
      <firstName>Alexander</firstName>
      <lastName>Bonhage</lastName>
    </author>
    <submitter>
      <firstName>Ulrike</firstName>
      <lastName>Schwarz</lastName>
    </submitter>
    <author>
      <firstName>Larysa</firstName>
      <lastName>Mykhailova</lastName>
    </author>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Fischer</lastName>
    </author>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>Sally</firstName>
      <lastName>Donovan</lastName>
    </author>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
  </doc>
  <doc>
    <id>25092</id>
    <completedYear/>
    <publishedYear>2019</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>S. 198</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject_noref</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2020-01-17</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">FTIR-based inquiry on carbon in forest soil substrate enriched by aged biochar, West Connecticut, USA</title>
    <abstract language="deu">Relict charcoal hearths (RCHs) are sites of former charcoal production that are an increasingly well documented anthropogenic feature in forests of the temperate climate zone. However, the type and extent of a possible legacy effect from RCHs on soil physical and chemical properties is still largely unknown. In the Litchfield Hills in west Connecticut, RCH sites are located mainly on slopes and therefore differ in their architecture from lowland sites found in Europe. One of the striking characteristics of a RCH site regardless of its architecture is the enrichment of the soil with charcoal in varying particle sizes. In this study, we use chemical digestion coupled with a PLSR-model to quantify organic carbon and pyrogenic carbon in RCH substrate by MIR-DRIFT measurements. Furthermore, we analyse the quality of carbon compounds by MIR-DRIFT measurements on multiple grain size fractions to assess the post-burn enrichment of soil organic matter. Preliminary results show a markedly increase in organic and pyrogenic carbon in RCH substrates in relation to the natural forest soil. Also, our first results suggest that the enrichment of organic carbon is favoured on RCHsites. However, the causality between the enrichment of soil organic matter and site features remains open. Experiments using chemical extraction techniques on our samples hint at an increase of labile organic compounds and/or microbial biomass. This legacy effect of RCHs is however evident and further studies need to focus on how to address them.</abstract>
    <parentTitle language="deu">Jahrestagung der Bodenkundlichen Gesellschaft der Schweiz und der Deutschen Bodenkundlichen Gesellschaft, Abstract-Band 2019</parentTitle>
    <identifier type="url">https://www.dbges.de/de/system/files/Bern2019/Programmheft/abstractband.dbg2019_2.pdf</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <author>
      <firstName>Alexander</firstName>
      <lastName>Bonhage</lastName>
    </author>
    <submitter>
      <firstName>Ulrike</firstName>
      <lastName>Schwarz</lastName>
    </submitter>
    <author>
      <firstName>Larysa</firstName>
      <lastName>Mykhailova</lastName>
    </author>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
  </doc>
  <doc>
    <id>26320</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>14</pageNumber>
    <edition/>
    <issue/>
    <volume>195</volume>
    <type>articler</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2020-11-12</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Characteristics of small anthropogenic landforms resulting from historical charcoal production in western Connecticut, USA</title>
    <parentTitle language="eng">Catena</parentTitle>
    <identifier type="doi">10.1016/j.catena.2020.104896</identifier>
    <identifier type="issn">0341-8162</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <enrichment key="Artikelnummer">104896</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">false</enrichment>
    <enrichment key="Fprofil">3 Globaler Wandel und Transformationsprozesse / Global Change and Transformation Processes</enrichment>
    <enrichment key="Fprofil">4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology</enrichment>
    <author>
      <firstName>Alexander</firstName>
      <lastName>Bonhage</lastName>
    </author>
    <submitter>
      <firstName>Alexander</firstName>
      <lastName>Bonhage</lastName>
    </submitter>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
  </doc>
  <doc>
    <id>26330</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>29</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject_noref</type>
    <publisherName/>
    <publisherPlace>Cottbus</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation>BTU Cottbus-Senftenberg</contributingCorporation>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2020-11-12</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Stratigraphy and shape of relict charcoal hearths in Connecticut, USA</title>
    <parentTitle language="eng">Anthropogenetische Geomorphologie - Geomorophologie im Anthropozän : Virtuelle Jahrestagung des Arbeitskreises für Geomorphologie 2020, 28./29. September 2020, BTU Cottbus - Senftenberg</parentTitle>
    <identifier type="doi">10.26127/BTUOpen-5363</identifier>
    <identifier type="issn">2196-4122</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <enrichment key="UBICOseries">Geopedology and Landscape Development Research Series ; 9</enrichment>
    <enrichment key="Fprofil">3 Globaler Wandel und Transformationsprozesse / Global Change and Transformation Processes</enrichment>
    <enrichment key="Fprofil">4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology</enrichment>
    <author>
      <firstName>Alexander</firstName>
      <lastName>Bonhage</lastName>
    </author>
    <submitter>
      <firstName>Alexander</firstName>
      <lastName>Bonhage</lastName>
    </submitter>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Anthropogenetische Geomorphologie; Anthropozän; BTU; Geopedologie Anthropocene; Anthropogenic geomorphology; Geopedology</value>
    </subject>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
  </doc>
  <doc>
    <id>29223</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>16</pageLast>
    <pageNumber/>
    <edition/>
    <issue>4</issue>
    <volume>73</volume>
    <type>articler</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2022-08-15</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Vertical SOC distribution and aromatic carbon in centuries old charcoal-rich Technosols</title>
    <abstract language="eng">Charcoal-rich Technosols on century-old relict charcoal hearths (RCHs) are the subject of ongoing research regarding potential legacy effects that result from historic charcoal production and subsequent charcoal amendments on forest soil properties and forest ecosystems today. RCHs consist mostly of Auh horizons that are substantially enriched in soil organic carbon (SOC), of which the largest part seems to be of pyrogenic origin (PyC). However, the reported range of SOC and PyC contents in RCH soil also suggests that they are enriched in nonpyrogenic SOC. RCH soils are discussed as potential benchmarks for the long-term influence of biochar amendment and the post-wildfire influences on soil properties. In this study, we utilised a large soil sample dataset (n = 1245) from 52 RCH sites in north-western Connecticut, USA, to quantify SOC contents by total element analysis. The contents of condensed highly aromatic carbon as a proxy for black carbon (BC) were predicted by using a modified benzene polycarboxylated acid (BPCA) marker method in combination with diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy-based partial least square regression (r2 = 0.89). A high vertical spatial sampling resolution allowed the identification of soil organic matter (SOM) enrichment and translocation processes. The results show an average 75% and 1862% increase in TOC and BPCA-derived carbon, respectively, for technogenic Auh horizons compared to reference soils. In addition to an increase in aromatic properties, increased carboxylic properties of the RCH SOC suggest self-humification effects of degrading charcoal and thereby the continuing formation of leachable aromatic carbon compounds, which could have effects on pedogenic processes in buried soils. Indeed, we show BPCA-derived carbon concentrations in intermediate technogenic Cu horizons and buried top/subsoils that suggest vertical translocation of highly aromatic carbon originating in RCH Auh horizons. Topmost Auh horizons showed a gradual decrease in total organic carbon (TOC) contents with increasing depth, suggesting accumulation of recent, non-pyrogenic SOM. Lower aliphatic absorptions in RCH soil spectra suggest different SOM turnover dynamics compared to reference soils. Furthermore, studied RCH soils featured additional TOC enrichment, which cannot be fully explained now.</abstract>
    <parentTitle language="eng">European Journal of Soil Science</parentTitle>
    <identifier type="url">https://bsssjournals.onlinelibrary.wiley.com/doi/10.1111/ejss.13293</identifier>
    <identifier type="doi">10.1111/ejss.13293</identifier>
    <enrichment key="BTU">an der BTU erstellt / created at BTU</enrichment>
    <enrichment key="Artikelnummer">e13293</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="Fprofil">2 Gesundheit und Lifes Sciences / Health and Life Sciences</enrichment>
    <enrichment key="Fprofil">3 Globaler Wandel und Transformationsprozesse / Global Change and Transformation Processes</enrichment>
    <enrichment key="Fprofil">4 Künstliche Intelligenz und Sensorik / Artificial Intelligence and Sensor Technology</enrichment>
    <author>
      <firstName>Alexander</firstName>
      <lastName>Bonhage</lastName>
    </author>
    <submitter>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </submitter>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>Anna</firstName>
      <lastName>Schneider</lastName>
    </author>
    <author>
      <firstName>Thomas</firstName>
      <lastName>Fischer</lastName>
    </author>
    <author>
      <firstName>Shaghayegh</firstName>
      <lastName>Ramezany</lastName>
    </author>
    <author>
      <firstName>William</firstName>
      <lastName>Ouimet</lastName>
    </author>
    <author>
      <firstName>Alexandra</firstName>
      <lastName>Raab</lastName>
    </author>
    <author>
      <firstName>Florian</firstName>
      <lastName>Hirsch</lastName>
    </author>
    <collection role="institutes" number="2404">FG Geopedologie und Landschaftsentwicklung</collection>
    <collection role="institutes" number="2051">Zentrale Analytik der BTU Cottbus-Senftenberg (ZA-BTU) / Zentrales Analytisches Labor</collection>
  </doc>
</export-example>
