@inproceedings{TaklaRaabRaab, author = {Takla, Melanie and Raab, Thomas and Raab, Alexandra}, title = {Standort 4 - Eisenh{\"u}ttenwerk Peitz. Die fr{\"u}hindustrielle K{\"o}hlerei in der J{\"a}nschwalder Heide (Niederlausitz). Eine GIS-basierte Rekonstruktion des Wald- und Landschaftszustandes mithilfe historischer Karten ab dem 18. Jahrhundert}, series = {Tagungsband und Exkursionsf{\"u}hrer, Arbeitskreis Geoarch{\"a}ologie- Jahrestagung 2013, 2.-4.5.2013, BTU Cottbus}, booktitle = {Tagungsband und Exkursionsf{\"u}hrer, Arbeitskreis Geoarch{\"a}ologie- Jahrestagung 2013, 2.-4.5.2013, BTU Cottbus}, editor = {Raab, Thomas and Hirsch, Florian and Raab, Alexandra and Schopper, Franz and Freytag, Klaus}, publisher = {BTU Cottbus}, address = {Cottbus}, pages = {89 -- 97}, abstract = {Die hier vorgestellte Forschungsarbeit besch{\"a}ftigt sich mit der Rekonstruktion der Landschafts- und Umweltgeschichte mithilfe Geographischer Informationssysteme (GIS) und historischer Karten. In einem Modell sollen die r{\"a}umliche Dimension der K{\"o}hlerei, der damit verbundene Holzverbrauch, der Zustand der W{\"a}lder, die vorhandene Infrastruktur etc. errechnet und dargestellt werden. Zeitlicher Schwerpunkt ist die zweite H{\"a}lfte des 18. Jahrhunderts und die Mitte des 19. Jahrhunderts.}, language = {de} } @incollection{TaklaRaabRaab, author = {Takla, Melanie and Raab, Thomas and Raab, Alexandra}, title = {Mit dem GIS zur Landschaftsgeschichte. Datengrundlage und Forschungsansatz zum Modell der fr{\"u}hindustriellen Holzkohleproduktion in der J{\"a}nschwalder Heide}, series = {Ausgrabungen im Niederlausitzer Braunkohlenrevier 2009/2010}, booktitle = {Ausgrabungen im Niederlausitzer Braunkohlenrevier 2009/2010}, editor = {Schopper, Franz}, publisher = {Brandenburgisches Landesamt f{\"u}r Denkmalpflege und Arch{\"a}ologisches Landesmuseum}, address = {W{\"u}nsdorf}, isbn = {978-3-910011-73-1}, pages = {267 -- 273}, language = {de} } @misc{NicolayRaabRaabetal., author = {Nicolay, Alexander and Raab, Alexandra and Raab, Thomas and R{\"o}sler, Horst and B{\"o}nisch, Eberhard and Murray, Andrew S.}, title = {Evidence of (pre-) historic to modern landscape and land use history near J{\"a}nschwalde (Brandenburg, Germany)}, series = {Zeitschrift f{\"u}r Geomorphologie, Suppl.}, volume = {58}, journal = {Zeitschrift f{\"u}r Geomorphologie, Suppl.}, number = {2}, issn = {1864-1687}, doi = {10.1127/0372-8854/2014/S-00162}, pages = {7 -- 31}, abstract = {In the apron of the active lignite opencast pit J{\"a}nschwalde (Brandenburg, Germany), three archaeological survey trenches were investigated in an area where aeolian sand deposits are widespread. The investigated sediment sequences contain evidence of aeolian morphodynamics, soil formation and agricultural land use. To study the age and the causes of sand drifting and surface stabilization, standard soil physical and chemical laboratory analyses as well as optically stimulated luminescence (OSL) and radiocarbon dating (14C) were carried out. Two main sedimentological units were identified: Unit 1 consists of glacio-fluvial and Late Glacial aeolian sands representing the parent material for the native Podsol- Braunerde, while Unit 2 represents the Late Holocene aeolian deposits. Four periods of Late Glacial and Holocene aeolian activity and three phases of geomorphological stability have been identified: (i) Aeolian sedimentation during the Late Glacial, (ii) Mesolithic reactivation of aeolian processes, (iii) soil formation until Late Roman Iron Age settlers intensified the agricultural land use, (iv) intensive drift sand formation during the High Middle Ages due to agricultural expansion, (v) stabilization of the drift sands and weak soil formation, (vi) reactivation of aeolian processes due to the increasing wood consumption and charcoal production from the early 17th until the mid-19th century, (vii) surface stabilization and formation of Regosols since the mid-19th century due to afforestation.}, language = {en} } @misc{SchneiderTaklaNicolayetal., author = {Schneider, Anna and Takla, Melanie and Nicolay, Alexander and Raab, Alexandra and Raab, Thomas}, title = {A Template-matching Approach Combining Morphometric Variables for Automated Mapping of Charcoal Kiln Sites}, series = {Archaeological Prospection}, volume = {22}, journal = {Archaeological Prospection}, number = {1}, issn = {1099-0763}, doi = {10.1002/arp.1497}, pages = {45 -- 62}, abstract = {Analysing the spatial distribution of anthropogenic relief structures can contribute to the understanding of past landuse systems. With automated mapping routines, small relief forms can be detected efficiently from high-resolution digital terrain models (DTMs). In this study, we describe an approach for the automated mapping of charcoal kiln sites from an airborne laser-scanning DTM. The study site is located north of Cottbus, Germany, where an exceptionally large historic charcoal production field has been documented in previous archaeological surveys. The goal of this study was to implement, evaluate and improve an automated GIS-based routine for mapping these features based on the template-matching principle. In addition to the DTM, different morphometric variables were evaluated for their suitability to detect kiln sites. The mapping results were validated against a comprehensive database of kiln sites recorded from archaeological excavations and via manual digitization. The effects of irregular kiln-site geometry and DTM noise were evaluated using synthetic DTMs. The results of the synthetic DTM mapping show that the template-matching results differed depending on the morphometric variable used for the mapping process. In accordance with this observation, a validation of the mapping procedure for the field site suggests that feature mapping can be improved. In particular, the number of false detections can be reduced using a combination of morphometric variables. For the validation area, the kiln sites with diameters of at least 10m were mapped using the automated routine, with detection rates that were close to those of manual digitization. Therefore, the described method can considerably facilitate the mapping and distribution analysis of kiln sites or similar small relief forms that are prominent in a specific landscape.}, language = {en} } @inproceedings{HirschSchneiderRaabetal., author = {Hirsch, Florian and Schneider, Anna and Raab, Alexandra and Raab, Thomas and Buras, Allan and Maaten, Ernst van der and Takla, Melanie and R{\"a}biger, Christin and Cruz-Garc{\´i}a, Roberto and Wilmking, Martin}, title = {Effects of historic charcoal burning on soil properties}, series = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, booktitle = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @inproceedings{SchneiderTaklaRaabetal., author = {Schneider, Anna and Takla, Melanie and Raab, Alexandra and Raab, Thomas and Bonhage, Alexander and Hirsch, Florian and R{\"o}sler, Horst}, title = {Towards an inventory of historic charcoal production fields in Brandenburg, Germany}, series = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, booktitle = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @inproceedings{HirschSchneiderNicolayetal., author = {Hirsch, Florian and Schneider, Anna and Nicolay, Alexander and Błaszkiewicz, Mirosław and Kordowski, Jarosław and Noryskiewicz, Agnieszka M. and Tyszkowski, Sebastian and Raab, Alexandra and Raab, Thomas}, title = {Late Quaternary landscape development at the margin of the Pomeranian phase (MIS 2) near Lake Wygonin (Northern Poland)}, series = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, booktitle = {European Geosciences Union, General Assembly 2015, Vienna, Austria, 13 April - 17 May 2015}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, language = {en} } @inproceedings{NicolayRaabRaabetal., author = {Nicolay, Alexander and Raab, Alexandra and Raab, Thomas and R{\"o}sler, Horst and B{\"o}nisch, Eberhard}, title = {Holocene landscape reconstruction and land use changes in Lower Lusatia (Southern Brandenburg, East Germany) - pedological and geomorphological approaches}, series = {2010 GSA Annual Meeting in Denver Colorado, USA 2010, 31 October - 3 November}, booktitle = {2010 GSA Annual Meeting in Denver Colorado, USA 2010, 31 October - 3 November}, publisher = {Geological Society of America}, address = {Boulder, Colo.}, pages = {S. 419}, abstract = {Modern lignite mining in southern Brandenburg (East Germany) causes the destruction of entire landscapes. To date, research concentrated on the reclamation of areas affected by mining-related activities, but the significance of prehistoric and historic cultures on land use changes is disregarded. Recently, a joint research project was launched for interdisciplinary long-term palaeoenvironmental research and to study anthropogenic landscape change in southern Brandenburg. The project partners are geoscientists from the Brandenburg University of Technology (BTU) Cottbus and archaeologists from the Brandenburgisches Landesamt f{\"u}r Denkmalpflege und Arch{\"a}ologisches Museum (BLDAM), within the scope of this project pedological and geomorphological investigations are carried out to reconstruct Holocene landscape and land use change in the apron of the opencast pit J{\"a}nschwalde (Lower Lusatia), c. 100 southeast of Berlin and c. 15 km northeast of Cottbus. By law large-scale surveys and excavations have to be carried out in the forefield to document all archaeological findings. In combination with the excellent outcrop situation the archaeological investigation offers ideal conditions to study the soil geomorphology on a landscape scale. Fieldwork includes topographical surveying by differential GPS. Soils and sediments are described along cross-sections (up to 140 m long, up to 2 m deep). Field-portable XRF analyzes (FPXRF) is used for a quick characterization of total element concentrations of the substrates. Standard analytical methods (e.g., soil texture, contents of pedogenic oxides) are carried out in the laboratory. To obtain chronological information, radiocarbon and OSL (optically stimulated luminescence) dating are applied on suitable material. Evidence of different land use and land use change in the study area is abundant. For example, at several cross-sections agricultural soil horizons are covered with up to 150 cm thick eolian sands, proving that deforestation and agricultural use induced eolian soil erosion. In addition, remnants of charcoal piles buried under up to 150 cm thick eolian sands indicate remobilization of Quaternary sands as a consequence of clearing for charcoal production. The ongoing investigations will concentrate on fieldwork. Preliminary results are presented.}, language = {en} } @inproceedings{BłaszkiewiczBrademannBraueretal., author = {Błaszkiewicz, Mirosław and Brademann, Brian and Brauer, Achim and Brykała, Dariusz and Deg{\´o}rski, Marek and Froehlich, Wojciech and Gierszewski, Piotr and Hirsch, Florian and Kaczmarek, Halina and Kordowski, Jarosław and Kramkowski, Mateusz and Krzymińska, Jarmila and Lamparski, Piotr and Lutyńska, Monika and Mirosław-Grabowska, Joanna and Nicolay, Alexander and Noryśkiewicz, Agnieszka M. and Noryśkiewicz, Bożena and Obremska, Milena and Ott, Florian and Raab, Alexandra and Raab, Thomas and Schneider, Anna and Schwab, Markus}, title = {Introduction to ICLEA fieldtrips - Stara Kiszewa 2013}, series = {2nd Annual ICLEA Workshop 2013, Dynamics of climate and landscape evolution of cultural landscapes in the Northern Central European Lowlands since the last ice age, Abstract volume \& Excursion guide}, booktitle = {2nd Annual ICLEA Workshop 2013, Dynamics of climate and landscape evolution of cultural landscapes in the Northern Central European Lowlands since the last ice age, Abstract volume \& Excursion guide}, publisher = {Deutsches GeoForschungsZentrum GFZ}, address = {Potsdam}, doi = {10.2312/GFZ.b103-13047}, pages = {53 -- 67}, language = {en} } @incollection{RaabRaab, author = {Raab, Thomas and Raab, Alexandra}, title = {Impacts of Early Land Use and Mining on River Landscapes}, series = {World Heritage and Cultural Diversity}, booktitle = {World Heritage and Cultural Diversity}, editor = {Offenh{\"a}ußer, Dieter and Zimmerli, Walther Ch. and Albert, Marie-Theres}, publisher = {German Commission for UNESCO}, address = {Bonn}, isbn = {978-3-940785-20-6}, pages = {252 -- 259}, language = {en} } @incollection{SchneiderRaabRoesleretal., author = {Schneider, Anna and Raab, Alexandra and R{\"o}sler, Horst and Takla, Melanie and Hirsch, Florian and Ritschl, Bosse and Raab, Thomas}, title = {Geophysikalische Prospektion und Mikrodrohnenbefliegungen zur Dokumentation von Meilerpl{\"a}tzen in der J{\"a}nschwalder Heide}, series = {Ausgrabungen im Niederlausitzer Braunkohlerevier 2013/2014}, booktitle = {Ausgrabungen im Niederlausitzer Braunkohlerevier 2013/2014}, editor = {Schopper, Franz and B{\"o}nisch, Eberhard}, publisher = {Brandenburgisches LAndesamt f{\"u}r Denkmalpflege und Arch{\"a}ologisches Landesmuseum}, address = {Zossen OT W{\"u}nsdorf}, isbn = {978-3-910011-79-3}, pages = {145 -- 154}, language = {de} } @misc{SchneiderHirschWechleretal., author = {Schneider, Anna and Hirsch, Florian and Wechler, Klaus-Peter and Raab, Alexandra and Raab, Thomas}, title = {Reconstruction of a Paleosurface and Archaeological Site Location in an Anthropogenic Drift Sand Area}, series = {Archaeological Prospection}, volume = {24}, journal = {Archaeological Prospection}, number = {4}, issn = {1099-0763}, doi = {10.1002/arp.1571}, pages = {297 -- 310}, abstract = {Knowledge of the position of archaeological remains in the surface relief provides important basic information for archaeological survey design and interpretation. Geomorphological processes in (pre)history may have resulted in a modification of the local relief around archaeological sites, especially in areas that are prone to sediment erosion and relocation, such as sheet sand and dune landscapes. In this study, we reconstructed and analysed the palaeorelief of an archaeological excavation site in an inland dune area in southern Brandenburg, Germany. The remains of two Mesolithic sites were documented in the 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 descriptions along archaeological survey trenches and geophysical prospection with ground penetrating radar supplemented with microdrone photography and photogrammetry, global positioning system (GPS) surveys, and analysis of LiDAR-based elevation models. A digital elevation model of the buried surface was generated and analysed using a geographical information system (GIS). A comparison of the palaeosurface model with the recent surface elevation model shows that sand remobilization resulted in a considerable reshaping of the relief. Further, an analysis of the buried surface model 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. The results affirm the significance of Holocene sediment relocation for the local surface morphology and the importance of considering such relief modifications in archaeological surveys.}, language = {en} } @inproceedings{SchneiderHirschRaabetal., author = {Schneider, Anna and Hirsch, Florian and Raab, Alexandra and Bonhage, Alexander and Raab, Thomas}, title = {Bodenver{\"a}nderungen durch die historische Holzkohleproduktion in Brandenburg}, series = {Abstracts der Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, G{\"o}ttingen, 2017}, booktitle = {Abstracts der Jahrestagung der Deutschen Bodenkundlichen Gesellschaft, G{\"o}ttingen, 2017}, publisher = {DBG}, address = {G{\"o}ttingen}, pages = {1}, language = {de} } @inproceedings{RaabRaabTaklaetal., author = {Raab, Thomas and Raab, Alexandra and Takla, Melanie and Nicolay, Alexander and Hirsch, Florian and Schneider, Anna and R{\"o}sler, Horst}, title = {Integrative Application of Traditional and Cutting-Edge Techniques to Reconstruct Holocene Earth Surface Processes and Landscape Dynamics - A Case Study from the Northern German Lowland}, series = {AGU Joint Assembly, Montreal, 2015, abstracts listing}, booktitle = {AGU Joint Assembly, Montreal, 2015, abstracts listing}, pages = {135 -- 136}, abstract = {This study outlines the opportunities to reconstruct Holocene landscape dynamics in active opencast lignite mines in southern Brandenburg (Germany). Studies on extensive outcrops that address geomorphology, pedology and archaeology provide unique insights into human-induced environmental changes. Our approach uses a variety of traditional and cutting-edge techniques to characterize small-scale landforms (high-resolution DEMs by micro-drone and LiDAR), to analyze soils and substrate properties in the field (GPR, ERT, geomagnetics, Field Portable XRF and XRD) and to provide chronological information (OSL, 14C, tree-ring dating). This approach is combined with a GIS for data integration. We present the most recent results and review important findings from the last several years. Studies conducted in the opencast mines focus on soil development and Late Quaternary geomorphodynamics and as well as past land use and the legacy of agriculture and woodland use. Our results regarding the human-induced geomorphodynamics are similar to those in other regions in Central Europe, but we also observe regional differences caused by the local setting, e.g., intensification of soil erosion coinciding with the expansion of farming of cultivated lands in the Slavic Middle Ages. By analyzing LiDAR data the largest area of historical charcoal production in the Northern European Lowland (NEL) has been revealed. We are clearly only beginning to understand the massive dimensions of charcoal production in the region and the impact on late Holocene geomorphodynamics. The usage of new high-resolution imagery is essential to identify small-scale anthropogenic landforms hidden in the landscape. Future work will consist of developing and improving our integrative approach. However, comprehensive ground truth data provided by the archaeological prospections in the open-cast mines are an excellent basis for GIS-based analyses of high-resolution ALS data and geomorphological research.}, language = {en} } @inproceedings{SchneiderTaklaRaabetal., author = {Schneider, Anna and Takla, Melanie and Raab, Alexandra and Raab, Thomas and Hirsch, Florian and R{\"o}sler, Horst}, title = {Mapping historic charcoal production fields from excavation to landscape scale}, series = {AGU Joint Assembly, Montreal, 2015, abstracts listing}, booktitle = {AGU Joint Assembly, Montreal, 2015, abstracts listing}, pages = {168}, abstract = {In the forefield of the open-cast mine J{\"a}nschwalde (north of Cottbus, Germany), archaeological excavations have revealed one of the largest charcoal production fields described so far. As remains of the historic charcoal kilns, small mounds of sediment rich in charcoal fragments and ash cover the soil surface. We applied a combination of methods for mapping such kiln relicts across a range of scales, in order to analyze the spatial distribution of kiln sites and to improve the understanding of historic forest use systems. In archaeological excavations in the mine forefield, the geometry of kiln relicts could be studied in high detail. We used a microdrone to record high-resolution photographs of excavation sites for the documentation of kiln site ground plans and other traces of historic land use. Based on airborne laser scanning elevation models, kiln site mapping was extended to areas beyond the mine forefield. Manual digitization from shaded relief maps was used for mapping kiln sites in further woodland areas surrounding an historic ironwork north of Cottbus. An automated mapping approach based on template matching was developed to detect charcoal production fields on a larger scale, and was applied for an area of about 1000 km2up to now. In archaeological excavations, about 900 kiln sites have been documented on an approximately 17 km2 large area. Excavation documentations and aerial photographs show variations in the kiln site ground plans. By manual digitization from Shaded Relief Maps, more than 5000 kiln sites with diameters up to 29 m were detected in the 32 km2 area of the royal forest J{\"a}nschwalder Heide north of Cottbus. First results of mapping for larger areas indicate similar densities, but smaller diameters of kiln sites in other charcoal production fields; and show that charcoal production is a so far underestimated component of the land use history in many areas in the Northern European Lowlands.}, language = {en} } @inproceedings{RaabRaabSchneideretal., author = {Raab, Thomas and Raab, Alexandra and Schneider, Anna and Takla, Melanie and Nicolay, Alexander and R{\"o}sler, Horst}, title = {Mapping the legacies of historic charcoal production}, series = {American Geophysical Union, Fall Meeting San Franisco, USA, 2014}, booktitle = {American Geophysical Union, Fall Meeting San Franisco, USA, 2014}, abstract = {The historic production of charcoal is an important component of the late Holocene fire history for many landscapes. Charcoal production can have numerous effects on ecosystems, e.g., through changes in forest area and structure, or through the effects of pyrolysis, charcoal and ash addition to soils. To assess such effects, it is necessary to understand the spatial extent and patterns of historic charcoal production, which has so far hardly been approached for the Northern European Lowlands. In the forefield of the open-cast mine J{\"a}nschwalde (north of Cottbus, Germany), archaeological excavations have revealed one of the largest charcoal production fields described so far. For this area, we applied and evaluated different methods for mapping the spatial distribution of charcoal kiln remains. We present methods and results of our work in this exceptionally well-described charcoal production field and of additional studies on kiln site distribution in regions of the Northern European Lowlands. The large-scale excavations in the mine forefield provide exact information on kiln site geometry. Using airborne laser scanning elevation models, the mapping of kiln sites could be extended to areas beyond the mine forefield. To detect kiln sites for larger areas, an automated GIS based mapping routine, based on a combination of morphometric parameters, was developed and evaluated. By manual digitization from Shaded Relief Maps, more than 5000 kiln sites in an area of 32 km2 were detected in the J{\"a}nschwalde mine forefield, with 1355 kiln sites that are wider than 12 m. These relatively large kiln sites could be mapped with detection rates that are close to those of manual digitization using the automated routine. First results for different study areas indicate that charcoal production is a so far underestimated component of the land use history in many parts of the Northern European Lowlands.}, language = {en} } @misc{RaabHirschOuimetetal., author = {Raab, Thomas and Hirsch, Florian and Ouimet, William and Johnson, Katharine M. and Dethier, David and Raab, Alexandra}, title = {Architecture of relict charcoal hearths in northwestern Connecticut, USA}, series = {Geoarchaeology}, volume = {32}, journal = {Geoarchaeology}, number = {4}, issn = {1520-6548}, doi = {10.1002/gea.21614}, pages = {502 -- 510}, abstract = {Relict charcoal hearths are round or elliptical earthen platforms up to 11 m in diameter and a widespread feature of historical industry that supplied charcoal used in the production of iron in furnaces or smelters. The iron industry dominated Litchfield County, Connecticut, and surrounding areas in the northeastUnited States throughout the 19th century, peaking in ∼1850. The large number of charcoal hearths in this region is a relic of >150 years of widespread iron production. In this study, we describe the architecture and soil stratigraphy of 26 charcoal hearths in Litchfield County. This contribution aims to (1) compare soils that comprise the charcoal hearths with "natural" adjacent soils, (2) measure the thickness of topsoil developed upon the hearths, and (3) characterize the stratigraphy associated with these features. Results indicate that the black topsoils overlying the charcoal hearths contain residual charcoal and are on average 2.6 times thicker than adjacentCambisols. Charcoal hearths display two ormore black, charcoal-rich strata separated by layers of reddish-brown soil low in charcoal content indicating multiple episodes of use.We also find that many charcoal hearths have been stabilized with boulders on the downslope side during construction and repeated use.Overall, the results presented here provide significant information regarding the construction, use, and associated impacts of earthen platforms for charcoal production in the northeastUnited States, with further relevance to other areas where historical charcoal production occurred.}, language = {en} } @inproceedings{SchneiderHirschRaabetal., author = {Schneider, Anna and Hirsch, Florian and Raab, Alexandra and Bonhage, Alexander and Raab, Thomas}, title = {Assessing the legacy effects of historic charcoal production in Brandenburg, Germany}, series = {European Geosciences Union, General Assembly 2017, Vienna, Austria}, booktitle = {European Geosciences Union, General Assembly 2017, Vienna, Austria}, publisher = {European Geophysical Society}, address = {Katlenburg-Lindau}, abstract = {Charcoal produced in kilns or hearths was an important source of energy in many regions of Europe and Northern America until the 19th century, and charcoal production in hearths is still common in many other regions of the world. The remains of charcoal hearths are therefore a widespread legacy of historic land use in forest areas. Soils on charcoal hearth sites are characterized by a technogenic layer rich in charcoal and ash on top of the soil profile, and by a pyrogenic modification of substrates below the former hearth. The aims of our study are to examine how these alterations to the natural soil profiles affect the soil water regime and other soil physical properties, and to assess the relevance of these effects on the landscape scale. We present first results of a mapping of hearth site occurrence in forest areas in the state of Brandenburg, Germany, and of a characterization of the infiltration behaviour on hearth sites as compared with undisturbed forest soils. Results of mapping small-scale relief features from LIDAR-based digital elevation models show that charcoal hearths occur in a high density in many large forest areas throughout Brandenburg. In the areas studied so far, up to almost 3\% of the soil surface were found to be affected by the remains of historic hearths. First analyses of soil physical properties indicate differences in the infiltration characteristics of hearth site soils and undisturbed forest soils: Hood infiltrometer measurements show a very high spatial variability of hydraulic conductivity for hearth site soils, and water-drop-penetration-time tests reflect extremely high hydrophobicity of the technogenic layer on the sites. Results of dye tracer experiment show considerably strong preferential flow and therefore a higher spatial variability of soil wetness below the hearth remains. Overall, our first results therefore indicate that the legacy effects of historic charcoal production might significantly affect overall site conditions in forest areas with a high density of charcoal hearth remains.}, language = {en} } @inproceedings{HirschSchneiderRaabetal., author = {Hirsch, Florian and Schneider, Anna and Raab, Alexandra and Raab, Thomas and Ouimet, William and Dethier, David}, title = {Late Holocene biochar enrichment in soils - implications of an anthropogenic legacy for ecosystems}, series = {ICLEA Final Symposium 2017, Human Impact and Landscape Evolution in the Southern Baltic Lowlands, Abstract Volume \& Excursion Guide}, booktitle = {ICLEA Final Symposium 2017, Human Impact and Landscape Evolution in the Southern Baltic Lowlands, Abstract Volume \& Excursion Guide}, editor = {Schwab, Markus and Błaszkiewicz, Mirek and Raab, Thomas and Wilmking, Martin and Brauer, Achim}, publisher = {GFZ German Research Centre for Geosciences}, address = {Potsdam}, doi = {10.2312/GFZ.b103-17037}, pages = {79 -- 81}, language = {en} } @inproceedings{SchneiderHirschRaabetal., author = {Schneider, Anna and Hirsch, Florian and Raab, Alexandra and Raab, Thomas}, title = {Dye tracer visualization of infiltration patterns in soils on historic charcoal hearth sites}, series = {ICLEA Final Symposium 2017, Human Impact and Landscape Evolution in the Southern Baltic Lowlands, Abstract Volume \& Excursion Guide}, booktitle = {ICLEA Final Symposium 2017, Human Impact and Landscape Evolution in the Southern Baltic Lowlands, Abstract Volume \& Excursion Guide}, editor = {Schwab, Markus and Błaszkiewicz, Mirek and Raab, Thomas and Wilmking, Martin and Brauer, Achim}, publisher = {GFZ German Research Centre for Geosciences}, address = {Potsdam}, doi = {10.2312/GFZ.b103-17037}, pages = {150 -- 151}, language = {en} }