TY - GEN A1 - Bonhage, Alexander A1 - Hirsch, Florian A1 - Raab, Thomas A1 - Schneider, Anna A1 - Raab, Alexandra A1 - Ouimet, William T1 - Characteristics of small anthropogenic landforms resulting from historical charcoal production in western Connecticut, USA T2 - Catena Y1 - 2020 U6 - https://doi.org/10.1016/j.catena.2020.104896 SN - 0341-8162 VL - 195 ER - TY - GEN A1 - Hirsch, Florian A1 - Schneider, Anna A1 - Bonhage, Alexander A1 - Raab, Alexandra A1 - Drohan, Patrick J. A1 - Raab, Thomas T1 - An initiative for a morphologic‐genetic catalog of relict charcoal hearths from Central Europe T2 - Geoarchaeology Y1 - 2020 U6 - https://doi.org/10.1002/gea.21799 SN - 1520-6548 SN - 0883-6353 VL - 35 IS - 6 SP - 974 EP - 983 ER - TY - GEN A1 - Schneider, Anna A1 - Hirsch, Florian A1 - Bonhage, Alexander A1 - Raab, Alexandra A1 - Raab, Thomas T1 - The soil moisture regime of charcoal-enriched land use legacy sites T2 - Geoderma Y1 - 2020 U6 - https://doi.org/10.1016/j.geoderma.2020.114241 SN - 0016-7061 VL - 366 ER - TY - GEN A1 - Schneider, Anna A1 - Bonhage, Alexander A1 - Hirsch, Florian A1 - Raab, Alexandra A1 - Raab, Thomas T1 - Hot spots and hot zones of soil organic matter in forests as a legacy of historical charcoal production T2 - Forest Ecology and Management N2 - Human land use often leads to distinct modifications of soils within small, clearly delimited areas. Legacy effects of past land use are also abundant in recent forest areas, but are hardly considered in ecosystem assessment and soil mapping. The soils on relict charcoal hearths (RCHs) are a widespread example for such land use legacy soils in forests. Soils on RCHs differ clearly from surrounding forest soils in their stratigraphy and properties, and are most prominently characterized by a technogenic substrate layer with high contents of charcoal and thus soil organic matter (SOM). Although RCH soils can clearly contribute to the SOM stocks of forest soils, their relevance on the landscape scale has hardly been quantified. In this paper we analyze and discuss the distribution and effects of RCH soils across scales for forests in the state of Brandenburg, Germany, with a focus on SOM stocks. Our analysis is based on a large-scale mapping of RCHs from digital elevation models (DEMs), combined with a linear regression model of SOM stocks in RCH soils. The spatial distribution of RCH soils in the study region has a scale dependent heterogeneity. The large-scale variation in site densities is related to the concentration of charcoal production to specific forest areas while the small-scale variation is related to the irregular distribution of single RCHs within the charcoal production fields. Up to 1.5 % of the surface are covered by RCH soils in the forest areas within the study region. The results also show that RCHs can significantly contribute to the SOM stocks of forests, even where they cover only a small fraction of the soil surface, with up to 18 % additional SOM for forest areas. Because of the heterogeneous distribution of RCHs, the SOM stock additions depend on the scale of observation. Our results suggest that RCH SOM additions can be overestimated when sites in small areas (< 1 km²) are analyzed; and that characteristic spatial concentration patterns of RCHs are even observable when values are aggregated to large areas (25 km² and more). Aggregating effects to irregularly-sized forest administrative units resulted in maps that well represent the spatial distribution of RCH soils and SOM. The study highlights that considering land use legacy effects can be relevant for the results of soil mapping and inventories; and that prospecting and mapping land use legacies from DEMs can contribute to improving such approaches. KW - Anthropogenic soils KW - relict charcoal hearths KW - soil organic matter KW - pyrogenic carbon KW - GIS Y1 - 2022 U6 - https://doi.org/10.1016/j.foreco.2021.119846 SN - 1872-7042 VL - 504 ER - TY - GEN A1 - Bonhage, Alexander A1 - Raab, Thomas A1 - Schneider, Anna A1 - Fischer, Thomas A1 - Ramezany, Shaghayegh A1 - Ouimet, William A1 - Raab, Alexandra A1 - Hirsch, Florian T1 - Vertical SOC distribution and aromatic carbon in centuries old charcoal-rich Technosols T2 - European Journal of Soil Science N2 - 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. Y1 - 2022 UR - https://bsssjournals.onlinelibrary.wiley.com/doi/10.1111/ejss.13293 U6 - https://doi.org/10.1111/ejss.13293 VL - 73 IS - 4 SP - 1 EP - 16 ER - TY - CHAP A1 - Schneider, Anna A1 - Raab, Alexandra A1 - Bonhage, Alexander A1 - Hirsch, Florian A1 - Raab, Thomas T1 - Legacies of historic charcoal production in Brandenburg, Germany T2 - Conference booklet, 5th International Landscape Archaeology Conference, 17th-20th September 2018 Newcastle and Durham, UK Y1 - 2018 UR - https://www.ncl.ac.uk/media/wwwnclacuk/mccordcentre/files/LAC2018_ConferenceBooklet.pdf SP - S. 214 ER - TY - GEN A1 - Hirsch, Florian A1 - Schneider, Anna A1 - Nicolay, Alexander A1 - Blaszkiewicz, Miroslaw A1 - Kordowski, Jarosław A1 - Noryskiewicz, Agnieszka M. A1 - Tyszkowski, Sebastian A1 - Raab, Alexandra A1 - Raab, Thomas T1 - Late Quaternary landscape development at the margin of the Pomeranian phase (MIS 2) near Lake Wygonin (Northern Poland) T2 - Catena N2 - In Central Europe, Late Quaternary landscapes experienced multiple phases of geomorphologic activity. In this study,we used a combined geomorphological, pedological, sedimentological and palynological approach to characterize landscape development after the Last Glacial Maximum (LGM) near Lake Wygonin in Northern Poland. The pedostratigraphical findings from soil pits and drillings were extrapolated using ground-penetrating radar (GPR) and electric resistivity tomography (ERT). During the Pomeranian phase, glacial and fluvioglacial processes dominated the landscape near Lake Wygonin. At the end of the glacial period, periglacial processes became relevant and caused the formation of ventifacts and coversands containing coated sand grains. At approximately 15,290–14,800 cal yr BP, a small pond formed in a kettle hole (profile BWI2). The lacustrine sediments lack eolian sand components and therefore indicate the decline of eolian processes during that time. The increase of Juniperus and rock-rose (Helianthemum) in the pollen diagram is a prominent marker of the Younger Dryas. At the end of the Younger Dryas, a partial reshaping of the landscape is indicated by abundant charcoal fragments in disturbed lake sediments. No geomorphologic activity since the beginning of the Holocene is documented in the terrestrial and wetland archives. The anthropogenic impact is reflected in the pollen diagram by the occurrence of rye pollen grains (Secale cereale) and translocated soil sediments dated to 1560–1410 cal yr BP, proving agricultural use of the immediate vicinity. With the onset of land use, gully incision and the accumulation of colluvial fans reshaped the landscape locally. Since 540–460 cal yr BP, further gully incision in the steep forest tracks has been associated with the intensification of forestry. Outside of the gully catchments, the weakly podzolized Rubic Brunic Arenosols show no features of Holocene soil erosion. Y1 - 2015 U6 - https://doi.org/10.1016/j.catena.2014.08.018 SN - 0341-8162 VL - 124 SP - 28 EP - 44 ER - TY - CHAP A1 - Schneider, Anna A1 - Raab, Alexandra A1 - Bonhage, Alexander A1 - Hirsch, Florian A1 - Raab, Thomas ED - Berg, Stefanie ED - Eckmeier, Eileen ED - Linzen, Sven ED - Werther, Lukas ED - Zielhofer, Christoph T1 - Relikte der historischen Köhlerei in Brandenburg T2 - Jahrestagung des Arbeitskreises Geoarchäologie, München, 2018 Y1 - 2018 U6 - https://doi.org/10.22032/dbt.34521 SP - S. 28 PB - Friedrich-Schiller-Universität Jena [u.a.] CY - Jena [u.a.] ER - TY - CHAP A1 - Bonhage, Alexander A1 - Hirsch, Florian A1 - Schneider, Anna A1 - Raab, Alexandra A1 - Raab, Thomas T1 - Multiproxy analysis of a relict charcoal hearth field in Brandenburg (Germany) T2 - European Geosciences Union, General Assembly 2018, Vienna, Austria Y1 - 2018 UR - https://meetingorganizer.copernicus.org/EGU2018/EGU2018-7065.pdf N1 - EGU2018-7065 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Schneider, Anna A1 - Raab, Alexandra A1 - Bonhage, Alexander A1 - Hirsch, Florian A1 - Raab, Thomas T1 - Legacies of historic charcoal production in Brandenburg, Germany T2 - European Geosciences Union, General Assembly 2018, Vienna, Austria Y1 - 2018 UR - https://meetingorganizer.copernicus.org/EGU2018/EGU2018-10089.pdf N1 - EGU2018-10089 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Bonhage, Alexander A1 - Hirsch, Florian A1 - Schneider, Anna A1 - Raab, Alexandra A1 - Raab, Thomas ED - Berg, Stefanie ED - Eckmeier, Eileen ED - Linzen, Sven ED - Werther, Lukas ED - Zielhofer, Christoph T1 - Multiproxy analysis of a relict charcoal hearth field in Brandenburg (Germany) T2 - Jahrestagung des Arbeitskreises Geoarchäologie, München, 2018 Y1 - 2018 U6 - https://doi.org/10.22032/dbt.34521 SP - S. 27 PB - Friedrich-Schiller-Universität Jena [u.a.] CY - Jena [u.a.] ER - TY - CHAP A1 - Schneider, Anna A1 - Bonhage, Alexander A1 - Hirsch, Florian A1 - Raab, Alexandra A1 - Raab, Thomas T1 - Spatial and temporal variability of soil physical properties on legacies of historic charcoal production T2 - European Geosciences Union, General Assembly 2018, Vienna, Austria N2 - The spatial variability of soil physical properties on the landscape scale is often increased by anthropogenic land occupation, not only by current land use but also through the legacies of past land use systems. The remains of historic charcoal hearts are an example for such a disturbance of the soil landscape by former forestry. Such relict charcoal hearths (RCH) exhibit a clearly altered soil stratigraphy, most prominently characterized by a technogenic substrate layer on the soil surface, and their soil physical properties can considerably differ from those of surrounding forest soils. The aim of our study is to characterize the soil water and temperature regime on RHC in a pre-industrial charcoal production area in Brandenburg, Germany, as compared with the surrounding sandy forest soils. Soil properties were analyzed in profiles on and around hearth sites and are monitored in a sensor transect equipped with soil moisture sensors and pF-meters. Results of soil sample analyses show differences in density and porosity between the RCH soils and surrounding forest soils, not only in the technogenic layer but also in the buried soil layers on hearth sites. The soil water characteristic curves determined in the laboratory indicate a modified pore size distribution and lower plant available water contents in the RCH soils. Preliminary results of the ongoing soil water monitoring, however, show increased soil wetness in the RCH soils, along with lower soil moisture tensions. Furthermore, the measurements show higher variations of soil temperature in RCH soils. The results affirm that the legacies of historic charcoal production can increase the spatial variability of soil physical properties and therefore also of ecological site conditions in forest areas. The results of soil moisture monitoring suggest that a determination of soil physical parameters in the laboratory is not sufficient to characterize the spatio-temporal variations of the soil water regime. Y1 - 2018 UR - https://meetingorganizer.copernicus.org/EGU2018/EGU2018-10115.pdf N1 - EGU2018-10115 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Hirsch, Florian A1 - Bonhage, Alexander A1 - Bauriegel, Albrecht A1 - Schneider, Anna A1 - Raab, Alexandra A1 - Raab, Thomas A1 - Gypser, Stella T1 - Occurrence, soil parameters and genesis of Rhodic Arenosols (‘Fuchserden’) in northeastern Germany T2 - European Geosciences Union, General Assembly 2018, Vienna, Austria Y1 - 2018 UR - https://meetingorganizer.copernicus.org/EGU2018/EGU2018-6205-1.pdf N1 - EGU2018-6205-01 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Hirsch, Florian A1 - Schneider, Anna A1 - Bauriegel, Albrecht A1 - Raab, Alexandra A1 - Raab, Thomas T1 - Formation, classification and properties of soils at two relict charcoal hearth sites in Brandenburg, Germany T2 - European Geosciences Union, General Assembly 2018, Vienna, Austria Y1 - 2018 UR - https://meetingorganizer.copernicus.org/EGU2018/EGU2018-6091.pdf N1 - EGU2018-6091 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - BOOK A1 - Raab, Alexandra A1 - Raab, Thomas A1 - Bonhage, Alexander A1 - Schneider, Anna A1 - Hirsch, Florian A1 - Aghte, Markus A1 - Pommerenke, Alf ED - Raab, Thomas T1 - Historische Köhlerei in Südbrandenburg - Begleitband zum Köhlerpfad Waldschule Kleinsee KW - Archäologie KW - Holzkohlemeiler KW - Lausitz KW - Tauerscher Forst KW - Umweltwissenschaften Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-opus4-54883 SN - 2196-4122 PB - Brandenburgische Technische Universität Cottbus - Senftenberg, Fachgebiet Geopedologie und Landschaftsentwicklung CY - Cottbus ER - TY - GEN A1 - Raab, Thomas A1 - Hirsch, Florian A1 - Raab, Alexandra A1 - Schneider, Anna A1 - Bonhage, Alexander A1 - Bönisch, Eberhard T1 - Böden historischer Landnutzung in der Niederlausitz - Wölbäcker und Kohlemeiler T2 - Brandenburgische Geowissenschaftliche Beiträge N2 - In der Niederlausitz finden sich - meist unter Kiefern- und Eichenforsten versteckt - zahlreiche Relikte der historischen Landnutzung, die bisher kaum bekannt sind. Zu den auffälligsten Formen zählen Wölbäcker und Plätze ehemaliger Kohlemeiler. In einigen Regionen der Niederlausitz ist die Verbreitung der Landnutzungsrelikte so groß bzw. ihre Dichte so hoch, dass sie prägend für die Bodenlandschaft werden. Dieser Beitrag zeigt an repräsentativen Beispielen die charakteristischen Merkmale und Eigenschaften der Böden auf Wölbäckern und Relikten von Holzkohlenmeilern (HKM). Y1 - 2019 SN - 0947-1995 VL - 26 IS - 1/2 SP - 5 EP - 14 ER - TY - CHAP A1 - Raab, Thomas A1 - Schneider, Anna A1 - Raab, Alexandra A1 - Hirsch, Florian A1 - Bonhage, Alexander ED - Holzheu, Stefan ED - Thies, Birgit T1 - The geomorphic legacy of historic charcoal production in Brandenburg, Germany T2 - 4th Central European Geomorphology Conference, Bayreuth, October 9th-13th 2017 Y1 - 2017 SP - 117 EP - 118 CY - Bayreuth ER - TY - CHAP A1 - Raab, Thomas A1 - Raab, Alexandra A1 - Hirsch, Florian A1 - Schneider, Anna A1 - Bonhage, Alexander ED - Schwab, Markus ED - Błaszkiewicz, Mirek ED - Raab, Thomas ED - Wilmking, Martin ED - Brauer, Achim T1 - Late Quaternary landscape development and legacies of human‐induced land use changes in Lower Lusatia, South Brandenburg, Germany T2 - ICLEA Final Symposium 2017, Human Impact and Landscape Evolution in the Southern Baltic Lowlands, Abstract Volume & Excursion Guide Y1 - 2017 UR - http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:2215927 U6 - https://doi.org/10.2312/GFZ.b103-17037 SP - 182 EP - 198 PB - GFZ German Research Centre for Geosciences CY - Potsdam ER - TY - CHAP A1 - Schneider, Anna A1 - Hirsch, Florian A1 - Wechler, Klaus-Peter A1 - Raab, Alexandra A1 - Raab, Thomas T1 - Mapping a paleosurface and archaeological site location in an inland dune area in Brandenburg, Germany T2 - European Geosciences Union, General Assembly 2017, Vienna, Austria N2 - Mapping and visualizing the position of archaeological remains in the surface relief provides important basic information for archaeological survey design and interpretation. Geomorphological processes in (pre)history can have resulted in a modification of the local relief around archaeological sites, especially in areas that are prone to sediment erosion and relocation, so that models of past surfaces are necessary for a correct interpretation of archaeological survey results. In this study, we combined terrestrial survey and remote sensing methods to reconstruct the palaeorelief around two archaeological excavation sites in an inland dune area in southern Brandenburg, Germany. Remains from two Mesolithic hunter-gatherer camps were documented in archaeological excavations and found to be associated with a buried soil horizon. To gather information on the relief of the buried soil surface, we used a combination of sedimentological and pedological profile description of archaeological survey trenches and geophysical prospection with Ground-Penetrating Radar; supplemented by microdrone photography and photogrammetry, GPS surveys and analysis of LIDAR-based elevation models. A digital elevation model of the buried surface was created by combining point data from these sources. The buried surface morphology and the position of the archeological remains within the reconstructed landscape were analyzed in GIS. The comparison of the generated paleosurface model with the recent surface elevation model shows that sand remobilization resulted in a considerable reshaping of the relief. Analysis of the buried surface model further shows that the relief position of the two archaeological sites in the study area was considerably more prominent in relation to the corresponding buried soil surface than in relation to the recent surface morphology. Results affirm the importance of considering Holocene relief modifications in archaeological surveys. Y1 - 2017 UR - http://meetingorganizer.copernicus.org/EGU2017/EGU2017-6066-1.pdf N1 - EGU2017-6066-1 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - CHAP A1 - Raab, Alexandra A1 - Schneider, Anna A1 - Bonhage, Alexander A1 - Raab, Thomas A1 - Hirsch, Florian T1 - Extensive historical charcoal production in Brandenburg (Germany) – identification of potential areas by GIS analysis T2 - European Geosciences Union, General Assembly 2017, Vienna, Austria N2 - We used a GIS analysis of environmental and historical data to identify potential areas of extensive charcoal production in Brandenburg. The analysis was based on three assumptions (i to iii). Large charcoal kiln fields can be found in areas that i) are close to historical industrial sites, ii) are close to bog iron ore deposits, and iii) have been continuously covered by forest during the last centuries. Information on theses parameters was gathered in an archive and literature study and from historical and recent maps. Areas with a high probability of kiln site occurrence were then determined using a simple binary additive model. In the last step, shaded-relief maps (SRMs) were visually checked for clearly visible kiln sites and soil properties were analysed in the determined areas. In total, eight areas with a high probability of kiln site occurrence are identified for the state of Brandenburg. By visual interpretation of SRMs, high kiln site densities in these areas are confirmed. The analysis of soil maps shows that kiln fields are predominantly located on sandy soils with a low yield potential. Although further parameters and study areas need to be considered in the model in order to explain the spatial distribution patterns of charcoal production, the results indicate correlations between the location of bog iron ore deposits, historic ironworks and charcoal kiln fields. Y1 - 2017 UR - http://meetingorganizer.copernicus.org/EGU2017/EGU2017-2976.pdf N1 - EGU2017-2976 PB - European Geophysical Society CY - Katlenburg-Lindau ER -