TY - GEN A1 - Fischer, Thomas A1 - Veste, Maik A1 - Eisele, Andreas A1 - Bens, Oliver A1 - Spyra, Wolfgang A1 - Hüttl, Reinhard F. T1 - Small Scale Spatial Heterogeneity of Normalized Difference Vegetation Indices (NDVI) and Hot Spots of Photosynthesis in Biological Soil Crusts T2 - Flora N2 - Normalized Difference Vegetation Indices (NDVIs) are typically determined using satellite or airborne remote sensing, or field portable spectrometers, which give an averaged signal on centimetre to metre scale plots. Biological soil crust (BSC) patches may have smaller sizes, and ecophysiological, hydrological as well as pedological processes may be heterogeneously distributed within this level of resolution. A ground-based NDVI imaging procedure using low-cost equipment (Olympus Camedia 5000z digital camera equipped with a Hoya R72 infrared filter) was developed in this study to fill this gap at the level of field research, where carrying costly and bulky equipment to remote locations is often the limiting factor for data collection. Method principle and field data are presented, and the field experiment was deepened comparing NDVI measurements and CO2 turnover of soil crust samples in the laboratory, backing the reliability of the approach. A commercially available colour rendition chart with known red (600–700 nm) and NIR (800–900 nm) reflectances was placed into each scene and used for calibration purposes on a per-image basis. Generation of NDVI images involved (i) determination of red and NIR reflectances from the pixel values of the red and NIR channels, respectively, and (ii) calculation and imaging of the NDVI, where NDVI values of −1 to +1 were mapped to grey values of 0 to 255. The correlation between NDVI values retrieved from these images and NDVI values determined using field spectrometry was close (r2 = 0.91), the 95% confidence interval amounted to 0.10 NDVI units. The pixel resolution was 0.8 mm in the field and 0.2 mm in the laboratory, but can still be improved significantly with closer distance to the crust or with higher camera resolution. NDVI values obtained using the new method were related to the net CO2 uptake of BSCs, where both slope and correlation coefficient of the respective regression function conformed with literature data. Geostatistical analysis revealed that both spatial variability of net CO2 uptake as well as size of individual hot spots of this parameter increased with crust development. The latter never exceeded 4 mm in the investigated crusts, which points to the necessity of high resolution imaging for linking remote sensing with ecophysiology. Perspectively, the new method could be used for field monitoring of both biological soil crusts and vascular vegetation. Y1 - 2012 U6 - https://doi.org/10.1016/j.flora.2012.01.001 VL - 207 IS - 3 SP - 159 EP - 167 ER - TY - GEN A1 - Fischer, Thomas A1 - Veste, Maik A1 - Schaaf, Wolfgang A1 - Dümig, Alexander A1 - Kögel-Knabner, Ingrid A1 - Wiehe, Wolfgang A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Initial pedogenesis in a topsoil crust 3 years after construction of an artificial water catchment in Brandenburg, NE Germany T2 - Biogeochemistry N2 - Cyanobacteria and green algae present in biological soil crusts are able to colonize mineral substrates even under extreme environmental conditions. As pioneer organisms, they play a key role during the first phases of habitat colonization. A characteristic crust was sampled 3 years after installation of the artificial water catchment “Chicken creek”, thus representing an early successional stage of ecosystem development. Mean annual rainfall and temperature were 559 mm and 9.3°C, respectively. We combined scanning electron microscopy (SEM/EDX) and infrared (FTIR) microscopy to study the contact zone of algal and cyanobacterial mucilage with soil minerals in an undisturbed biological soil crust and in the subjacent sandy substrate. The crust was characterized by an approximately 50 μm thick surface layer, where microorganisms resided and where mineral deposition was trapped, and by an approximately 2.5 mm thick lower crust where mineral particles were stabilized by organo-mineral structures. SEM/EDX microscopy was used to determine the spatial distribution of elements, organic compounds and minerals were identified using FTIR microscopy and X-ray diffraction (XRD). The concentration of organic carbon in the crust was about twice as much as in the parent material. Depletion of Fe, Al and Mn in the lower crust and in the subjacent 5 mm compared to the geological substrate was observed. This could be interpreted as the initial phase of podzolization. Existence of bridging structures between mineral particles of the lower crust, containing phyllosilicates, Fe compounds and organic matter (OM), may indicate the formation of organo-mineral associations. pH decreased from 8.1 in the original substrate to 5.1 on the crust surface 3 years after construction, pointing to rapid weathering of carbonates. Weathering of silicates could not be detected. Y1 - 2010 U6 - https://doi.org/10.1007/s10533-010-9464-z SN - 1573-515X VL - 101 IS - 1-3 SP - 165 EP - 176 ER - TY - GEN A1 - Elmer, Michael A1 - Gerwin, Werner A1 - Schaaf, Wolfgang A1 - Zaplata, Markus K. A1 - Hohberg, Karin A1 - Nenov, Rossen A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Dynamics of initial ecosystem development at the artificial catchment Chicken Creek, Lusatia, Germany T2 - Environmental Earth Sciences KW - ecosystem development Y1 - 2013 SN - 1866-6299 VL - 69 IS - 2 SP - 491 EP - 505 ER - TY - GEN A1 - Lucke, Bernhard A1 - Schmidt, Michael A1 - Al-Saad, Ziad A1 - Hüttl, Reinhard F. A1 - Bens, Oliver T1 - The abandonment of the Decapolis region in Northern Jordan - forced by environmental change? T2 - Quaternary International Y1 - 2005 SN - 1040-6182 VL - 135 IS - 1 SP - 65 EP - 81 ER - TY - BOOK A1 - Gerwin, Werner A1 - Schillem, Steffi A1 - Asch, Folkard A1 - Bens, Oliver A1 - Bestajovsky, Jürgen A1 - Bruns, Christian A1 - Gattinger, Andreas A1 - Hattig, Tom A1 - Hoogen, Heiner A1 - Hüttl, Reinhard F. A1 - Raab, Thomas A1 - Rodionov, Andrei A1 - Schaaf, Wolfgang A1 - Schneider, Bernd Uwe A1 - Trimborn, Manfred ED - Hüttl, Reinhard F. ED - Gerwin, Werner T1 - Bodenmelioration und Anbauverfahren für trockenheitsgefährdete Standorte (BAtroS) Y1 - 2011 SN - 978-3-937728-14-8 PB - FZLB CY - Cottbus ER - TY - CHAP A1 - Schaaf, Wolfgang A1 - Gerke, Horst H. A1 - Bens, Oliver T1 - Characteristics of disturbance in terrestrial post-mining ecosystems Y1 - 2003 ER - TY - CHAP A1 - Asch, Folkard A1 - Bens, Oliver A1 - Bestajovsky, Jürgen A1 - Gattinger, Andreas A1 - Gerwin, Werner A1 - Hattig, Tom A1 - Hoogen, Verena A1 - Hüttl, Reinhard F. A1 - Rodionov, Andrei A1 - Schaaf, Wolfgang A1 - Schneider, Bernd Uwe A1 - Trimborn, Manfred A1 - Schillem, Steffi ED - Mahammadzadeh, Mahammad ED - Biebeler, Hendrik ED - Bardt, Hubertus T1 - Bodenmelioration und Anbauverfahren für trockenheitsgefährdete Standorte T2 - Klimaschutz und Anpassung an die Klimafolgen : Strategien, Maßnahmen und Anwendungsbeispiele Y1 - 2009 SN - 978-3-602-14847-9 SP - 287 EP - 294 PB - IW-Medien CY - Köln ER - TY - CHAP A1 - Plieninger, Tobias A1 - Bens, Oliver A1 - Hüttl, Reinhard F. ED - Mander, Ülo ED - Wiggering, Hubert ED - Hekmig, Katharina T1 - Innovations in land-use as response to rural change - a case report from Brandenburg, Germany T2 - Multifunctional Land Use - Meeting Future Demands for Landscape Goods and Services Y1 - 2007 SN - 978-3-540-36762-8 SP - 369 EP - 385 PB - Springer CY - Berlin [u.a.] ER - TY - CHAP A1 - Plieninger, Tobias A1 - Thiel, A. A1 - Bens, Oliver A1 - Hüttl, Reinhard F. ED - Sikor, Thomas T1 - Bioenergy Clusters in Austria and Germany: From Public Goals to Private Action T2 - Public and Private in Natural Resource Governance: A False Dichotomy? Y1 - 2008 SN - 978-1-84407-525-6 SP - 149 EP - 166 PB - Routledge, Taylor & Francis CY - London ER - TY - CHAP A1 - Bens, Oliver A1 - Fettweis, U. J. A1 - Koch, A. A1 - Hüttl, Reinhard F. ED - Hüttl, Reinhard F. ED - Gerwin, Werner T1 - Bedeutung des Umsatzes organischer Substanz für die Bildung von Humusformen und deren Eignung als Indikator für die Entwicklung des Stoffhaushalts gestörter Standorte T2 - Entwicklung und Bewertung gestörter Kulturlandschaften. Fallbeispiel Niederlausitzer Y1 - 2004 SN - 3-937728-01-5 SP - 49 EP - 79 PB - Forschungszentrum Bergbaulandschaften Bergbaufolgelandschaft CY - Cottbus ET - 1. Auflage ER - TY - CHAP A1 - Hüttl, Reinhard F. A1 - Bens, Oliver A1 - Gerwin, Werner T1 - Bodenentwicklung nach forstlicher Rekultivierung im Zuge der nachbergbaulichen Inwertsetzung gestörter Landschaften Y1 - 2004 ER - TY - CHAP A1 - Lemmnitz, Christine A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Charakterisierung oberflächennaher trockenheitsinduzierter bodenhydrologischer und -chemischer Veränderungen in Böden Y1 - 2004 ER - TY - CHAP A1 - Bens, Oliver T1 - Die Initiative `Not- und Hilfsbüchlein´ für Optionen einer zukunftsorientierten Nutzung ländlicher Räume Y1 - 2004 ER - TY - CHAP A1 - Elmer, Michael A1 - Schröder, J. A1 - Bens, Oliver A1 - Kätzel, Ralf ED - Elmer, Michael ED - Kätzel, Ralf ED - Bens, Oliver ED - Bues, Claus-Thomas ED - Sonntag, Herbert ED - Hüttl, Reinhard F. T1 - Synthese und Ausblick T2 - Nachhaltige Bewirtschaftung von Eichen-Kiefern-Mischbeständen Y1 - 2009 SN - 978-3-86581-196-7 SP - 137 EP - 143 PB - oekom Verlag CY - München ER - TY - CHAP A1 - Bens, Oliver A1 - Hüttl, Reinhard F. A1 - Plieninger, Tobias T1 - Zukunftsorientierte Nutzung ländlicher Räume Y1 - 2005 ER - TY - GEN A1 - Schröder, J. A1 - Elmer, Michael A1 - Kätzel, Ralf A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Bewirtschaftung von Eichen-Kiefern-Mischbeständen im Nordostdeutschen Tiefland T2 - AFZ - der Wald Y1 - 2010 IS - 4 SP - 6 EP - 8 ER - TY - CHAP A1 - Schaaf, Wolfgang A1 - Gerke, Horst H. A1 - Bens, Oliver A1 - Schneider, Bernd Uwe A1 - Münzenberger, Babette T1 - Effects of disturbance on the development of water and element cycles of post-mining ecosystems Y1 - 2003 ER - TY - CHAP A1 - Plieninger, Tobias A1 - Bens, Oliver A1 - Hüttl, Reinhard F. ED - Beck, Hans-Peter ED - Buddenberg, J. ED - Meller, E. ED - Salander, C. T1 - Biomassenutzung aus Land- und Forstwirtschaft T2 - Handbuch Energiemanagement : Wirtschaft - Recht - Technik Y1 - 2009 UR - http://handbuch-energiemanagement.de/Produktseite/tabid/171/CategoryID/68/List/1/Level/a/ProductID/229/Default.aspx?SortField=ProductNumber%2cFree1 N1 - Beitrag-Nr. 1410, Erg.-Lfg. 28 PB - EW Medien und Kongresse GmbH CY - Frankfurt am Main ER - TY - CHAP A1 - Bachmann, Ute A1 - Bens, Oliver A1 - Elmer, Michael A1 - Fischer, Thomas A1 - Raab, Thomas A1 - Hüttl, Reinhard F. ED - Elmer, Michael ED - Kätzel, Ralf ED - Bens, Oliver ED - Bues, Claus-Thomas ED - Sonntag, Herbert ED - Hüttl, Reinhard F. T1 - Boden und Standortqualität T2 - Nachhaltige Bewirtschaftung von Eichen-Kiefern-Mischbeständen : im Spannungsfeld von Klimawandel, Waldumbau und internationalem Holzmarkt Y1 - 2009 SN - 978-3-86581-196-7 SP - 31 EP - 44 PB - oekom CY - München ER - TY - CHAP A1 - Plieninger, Tobias A1 - Bens, Oliver A1 - Hüttl, Reinhard F. ED - Köstner, Barbara ED - Vogt, M. ED - Saan-Klein, B. van T1 - Grüne Gentechnik und ländliche Räume - eine Übersicht T2 - Agro-Gentechnik im ländlichen Raum : Potenziale, Konflikte, Perspektiven Y1 - 2007 SN - 978-3-89754-269-3 SP - 11 EP - 20 PB - Röll CY - Dettelbach ER - TY - CHAP A1 - Plieninger, Tobias A1 - Bens, Oliver ED - Pain, J. ED - Schuster, U. ED - Köstler, E. ED - Körner, S. T1 - Die Nutzung von Bioenergie als aktuelle Herausforderung der Kulturlandschaftsentwicklung T2 - Die Zukunft der Kulturlandschaft - Entwicklungsräume und Handlungsfelder Y1 - 2008 SN - 978-3-931175-85-6 SP - 74 EP - 80 PB - Bayerische Akademie für Naturschutz und Landschaftspflege CY - Laufen ER - TY - CHAP A1 - Plieninger, Tobias A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Innovative Landnutzungssysteme zur Bereitstellung von Bioenergie und Biomaterialien T2 - Berichte und Abhandlungen Y1 - 2007 SN - 978-3-05-004425-5 SP - 61 EP - 74 PB - Akademie Verlag CY - Berlin ER - TY - CHAP A1 - Fettweis, U. J. A1 - Bens, Oliver A1 - Koch, A. A1 - Hüttl, Reinhard F. ED - Peschel, Tim T1 - Untersuchungen zur Pedogenese an Rekultivierungsstandorten unter forstlicher Nutzung (Pinus spec.) im Niederlausitzer Braunkohlerevier T2 - Landschaft im Wandel - Ökologie im Wandel Y1 - 2002 SN - 3-89533-379-4 PB - Verl. Die Werkstatt CY - Göttingen ER - TY - CHAP A1 - Fischer, H. A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Humusformenwandel und Kohlenstoffumsatz als bodenökologische Kenngrößen in der Folge von Waldumbaumaßnahmen Y1 - 2002 ER - TY - CHAP A1 - Bens, Oliver T1 - Die Rekultivierung von Bergbaufolgestandorten - Zur Bedeutung der organischen Bodensubstanz Y1 - 2001 ER - TY - CHAP A1 - Bens, Oliver T1 - Einsatz und Möglichkeiten natürlicher Immissionsschutzmaßnahmen Y1 - 2002 ER - TY - CHAP A1 - Hüttl, Reinhard F. A1 - Bens, Oliver T1 - Boden Y1 - 2001 ER - TY - GEN A1 - Chabrillat, Sabine A1 - Kaufmann, H. A1 - Merz, Bruno A1 - Müller, Andreas A1 - Bens, Oliver A1 - Lemmnitz, Christine T1 - Development of relationships between reflectance and erosion modelling: Test site preliminary field spectral analysis N2 - Verlagsort: Herrsching Y1 - 2003 ER - TY - GEN A1 - Plieninger, Tobias A1 - Bens, Oliver T1 - Produktivismus versus Post-Produktivismus: Prozesse der Umnutzung ländlicher Räume in Nordostdeutschland T2 - Berichte zur deutschen Landeskunde Y1 - 2007 SN - 0005-9099 IS - 8 SP - 313 EP - 328 ER - TY - GEN A1 - Plieninger, Tobias A1 - Bens, Oliver T1 - Biologische Vielfalt und globale Schutzgebietsnetze T2 - Aus Politik und Zeitgeschichte Y1 - 2008 SN - 0479-611X VL - 58 IS - 3 SP - 16 EP - 23 ER - TY - CHAP A1 - Bens, Oliver A1 - Fettweis, U. J. A1 - Koch, A. T1 - Soil organic matter formation and root functioning in lignite-rich mine soils in Lusatia, Germany Y1 - 2002 ER - TY - RPRT A1 - Bens, Oliver A1 - Grünewald, Holger A1 - Schneider, Bernd Uwe A1 - Hüttl, Reinhard F. T1 - Versorgung von Biomassekraftwerken mit biogenen Energieträgern unter besonderer Berücksichtigung von holzartigen Bioenergieträgern aus Kurzumtribplantagen Y1 - 2002 N1 - Gutachten ER - TY - CHAP A1 - Krümmelbein, Julia A1 - Raab, Thomas A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Soil physical parameters on a recently established agricultrural recultivation site in Eastern Germany T2 - ISTRO 18th Triennial Conference Proceedings, June 15-19, 2009, Izmir, Turkey Y1 - 2009 UR - http://iworx5.webxtra.net/~istroorg/download/ISTRO%202009%20Proceedings.zip SP - T4-028-01 EP - T4-028-04 ER - TY - CHAP A1 - Grünewald, Holger A1 - Brandt, B. F. A1 - Bens, Oliver T1 - Production of biomass for energy transformation purposes in agroforestry systems Y1 - 2004 ER - TY - CHAP A1 - Krümmelbein, Julia A1 - Raab, Thomas A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Development of soil physical parameters on initial landforms - An example from a post-mining recultuivation site in Lusatia, East Germany T2 - AGU Fall Meeting Suppl. N2 - Recultivation efforts in mining areas attempt to regenerate soils and landscapes for various land use options and create initial conditions which are beneficial for the development of the future ecosystems. On very young landforms physical and chemical properties of soils play a major role for the further evolution of the developing ecosystem as well as the landforms itself. Less is known about the very first alterations of physical parameters in accordance to different land uses and recultivation practices. Our study deals with the agricultural recultivation of post lignite mining areas in Lusatia, East Germany. The sandy substrate used for recultivation stems from depths of several meters and is therefore free of recent soil organic matter. The substrate itself is unstructured. After it has been excavated and transported on conveyor belts to the recultivation site, it is piled up to dams of a height of 1-4 m and levelled off with heavy crawlers. During these processes the substrate is subjected to strong mechanical stresses. This practice induces compaction which causes decreasing yields of agricultural crops to a certain extent. In this context we are investigating the effect of different organic soil additives in combination with different recultivation crop rotations on the development of soil structure for improved agricultural land use. Our experimental site has recently been heaped up and levelled off. On the 25 experimental sub areas 2175 undisturbed soil samples were taken out of three soil depths to characterize initial physical properties before any recultivation measures have been applied,. We present laboratory results of this status-quo sampling. The results indicate that the site is very heterogeneous in terms of mechanical stability, bulk density, total pore volume, saturated hydraulic conductivity and air permeability. Moreover, our results show that bulk density is not an appropriate parameter to derive soil functions, e.g. permeability or stability. Additionally we found that even in areas of bulk densities > 1.8 g/cm3 and with an inclination < 2 % impressive run-off and gully erosion developed during heavy rainfall events. We conclude that initial processes altering soil physical parameters play a major role for the landform evolution within the first 12 months after dumping. Further studies should reveal the mid-term impact of organic additives on the soils after 7 yrs. Y1 - 2009 SP - EP31B-0593 ER - TY - CHAP A1 - Rodionov, Andrei A1 - Bens, Oliver A1 - Trimborn, Manfred A1 - Wagner, S. A1 - Schneider, Bernd Uwe A1 - Raab, Thomas A1 - Hüttl, Reinhard F. T1 - Use of commercial soil amendments in initial soils (I) - Impact on yield and basic soil characteristics T2 - EGU General Assembly 2009, Vienna, Austria, 19 – 24 April 2009 Y1 - 2009 N1 - EGU2009-12080 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - JOUR A1 - Schäfer, B. A1 - Buczko, Uwe A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Einfluss differenzierter forstlicher Bewirtschaftungsweisen auf die Wasserspeicherfähigkeit sandiger Böden NO-Brandenburgs Y1 - 2001 ER - TY - JOUR A1 - Bens, Oliver A1 - Buczko, Uwe A1 - Schäfer, B. T1 - Markoporosität und Infiltrationseigenschaften von Ackerböden unter differenzierten Bewirtschaftungsweisen Y1 - 2001 ER - TY - CHAP A1 - Fischer, Thomas A1 - Veste, Maik A1 - Eisele, Andreas A1 - Bens, Oliver A1 - Spyra, Wolfgang A1 - Hüttl, Reinhard F. T1 - High resolution mapping of Normalized Difference Vegetation Indices (NDVI) of biological soil crusts T2 - EGU General Assembly 2012, held 22-27 April, 2012 in Vienna Y1 - 2012 N1 - EGU2012-7052 PB - European Geophysical Society CY - Katlenburg-Lindau ER - TY - JOUR A1 - Morgenroth, Gerhard A1 - Kretschmer, Wolfgang A1 - Scharf, Andreas A1 - Uhl, Thomas A1 - Fettweis, Ulrich A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - 14C measurement of soil in post-mining landscapes. Y1 - 2004 U6 - https://doi.org/10.1016/j.nimb.2004.04.105 ER - TY - JOUR A1 - Rumberger, M. D. A1 - Münzenberger, Babette A1 - Bens, Oliver T1 - Changes in diversity and storage function of ectomycorrhiza and soil organoprofile dynamics after introduction of beech into Scots pine forests Y1 - 2004 ER - TY - JOUR A1 - Buczko, Uwe A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Variabilty of soil water repellency in sandy forest soils with different stand structure under Scots pine (Pinus sylvestris) and beech (Fagus sylvatica) Y1 - 2005 ER - TY - JOUR A1 - Wahl, Niels Arne A1 - Bens, Oliver A1 - Buczko, Uwe T1 - Effects of conventional and conservation tillage on soil hydraulic properties of a silty-loamy soil Y1 - 2004 ER - TY - JOUR A1 - Wahl, Niels Arne A1 - Bens, Oliver A1 - Schäfer, B. T1 - Impact of changes in land-use management on soil hydraulic properties: Hydraulic conductivity, water repellency and water retention Y1 - 2003 ER - TY - JOUR A1 - Wahl, Niels Arne A1 - Buczko, Uwe A1 - Bens, Oliver T1 - Infiltration capacity and macroporosity of a silty-loamy soil under different tillage systems Y1 - 2003 ER - TY - JOUR A1 - Hüttl, Reinhard F. A1 - Bens, Oliver A1 - Gerwin, Werner T1 - Wiederherstellung von Kulturlandschaften nach Störung - Eine Zukunftsaufgabe Y1 - 2004 ER - TY - JOUR A1 - Bens, Oliver T1 - Plant litter - decomposition, humus formation and carbon sequestration : a book review Y1 - 2004 ER - TY - JOUR A1 - Wahl, Niels Arne A1 - Bens, Oliver A1 - Hüttl, Reinhard F. T1 - Veränderung pedo-hydrologischer Eigenschaften als Folge differenzierter Bewirtschaftung von Waldböden Y1 - 2002 ER - TY - JOUR A1 - Buczko, Uwe A1 - Bens, Oliver A1 - Hangen, Edzard T1 - Infiltration patterns and macroporosity of silt loam soils under two different tillage systems Y1 - 2003 ER - TY - JOUR A1 - Schäfer, B. A1 - Bens, Oliver A1 - Wahl, Niels Arne T1 - Einfluss von Waldumbaumaßnahmen auf die Infiltrationseigenschaften differenziert bestockter Forststandorte Y1 - 2002 ER -