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Contact

Markus Steffens
(Dr. rer. nat)

Department of Soil Sciences
Head of Climate
FiBL
Ackerstrasse 113
CH-5070 Frick

Phone +41 (0)62 865-0418
Fax +41 (0)62 865-7273
markus.steffens(at)fibl.org 

Organic farming and climate change

Steffens Markus

Activity areas

  • Climate and agriculture

Training / professional career

  • Since 2017 Head of Climate and Agriculture at FIBL, Switzerland
  • 2009 - 2017 Assistant professor Chair of Soil Science, Technical University of Munich
  • 2004 - 2009 Research associate, Chair of Soil Science, Technical University of Munich (PhD)
  • 1998 - 2004 Applied Environmental Sciences, Trier University (Diploma)

Publications

Publications in the Organic Eprints archive

Publications that are not in the Organic Eprints archive

Submitted/under revision

  • Hobley, E., Bauke, S., Steffens, M., Amelung, W., Kögel-Knabner, I.: Hyperspectral imaging spectroscopy reveals subsoil hotspots of organic carbon. Submitted to Scientific Reports.

Journals with peer-review

2017

  • Leifeld, J., Alewell, C., Bader, C., Krüger, J.P., Müller, C.W., Sommer, M., Steffens, M., Szidat, S. (2017): Pyrogenic carbon contributes substantially to carbon storage in intact and degraded northern peatlands. Land degradation and development, DOI: 10.1002/ldr.2812; IF: 8.145
  • Lehtinen, T., Lair, G.J., van Leeuwen, J.P., Gísladóttir, G., Bloem, J., Ragnarsdóttir, K.V., Steffens, M., Blum, W.E.H. (2017): Soil aggregation and soil organic matter in conventionally and organically farmed Austrian Chernozems. Die Bodenkultur 68: 41-55; IF: 0.18
  • Mueller, C.W., Hoeschen, C., Steffens, M., Buddenbaum, H., Hinkel, K., Bockheim, J.G., Kao-Kniffin, J. (2017): Microscale soil structures foster organic matter stabilization in permafrost soils. Geoderma, 293: 44-53; IF: 4.036

2016

  • Burud, I., Moni, C., Flo, A., Futsaether, C., Steffens, M., Rasse, D.P. (2016): Qualitative and quantitative mapping of biochar in a soil profile using hyperspectral imaging. Soil and Tillage Research 155: 523-531; IF: 2.622
  • Hoffmann, C., Giese, M., Dickhoefer, U., Wan, H., Bai, Y., Steffens, M., Liu, C., Butterbach-Bahl, K., Han, X. (2016): Effects of grazing and climate variability on grassland ecosystem functions in Inner Mongolia: Synthesis of a 6-year grazing experiment. Journal of Arid Environments 135: 50-63; IF: 1.641
  • Mouazen, A.M., Steffens, M., Borisover, M. (2016): Reflectance and fluorescence spectroscopy in soil science – Current and future research and developments. Soil and Tillage Research 155: 448-449; IF: 2.622
  • Zak, D.R., Freedman, Z.B., Upchurch, R., Steffens, M., Kögel-Knabner, I. (2016): Anthropogenic N deposition increases soil organic matter accumulation without altering its biochemical composition. Global Change Biology 23(2): 933-944; IF: 8.502

2015

  • Schreiner, S., Buddenbaum, H., Emmerling, C., Steffens, M. (2015): Vis/NIR/SWIR Laboratory imaging spectroscopy for wall-to-wall mapping of elemental concentrations in soil cores. Photogrammetrie, Fernerkundung, Geoinformation 2015/6: 423-435; IF: 0.733
  • Christophel, D., Höllerl, S., Prietzel, J., Steffens, M. (2015): Long-term development of soil organic carbon and nitrogen stocks after shelterwood- and clear-cutting in a mountain forest in the Bavarian Limestone Alps. European Journal of Forest Research 134: 623-640; IF: 2.095
  • Lehtinen, T., Gísladóttir, G., Lair, G.J., van Leeuwen, J.P., Blum, W.E.H., Bloem, J., Steffens, M., Ragnarsdótt, K.V. (2015): Aggregation and organic matter in subarctic Andosols under different grassland management. Acta Agriculturae Scandinavica, Section B — Soil & Plant Science 65(3): 246-263; IF: 0.646
  • Wiesmeier, M., Munro, S., Barthold, F., Steffens, M., Schad, P., Kögel-Knabner, I. (2015): Carbon storage capacity of semi-arid grassland soils and sequestration potentials in Northern China. Global Change Biology 21(10): 3836-3845; IF: 8.502

2014

  • Regan, K.M., Nunan, N., Boeddinghaus, R.S., Baumgartner, V., Berner, D., Boch, S., Oelmann, Y., Overmann, J., Prati, D., Schloter, M., Schmitt, B., Sorkau, E., Steffens, M., Kandeler, E., Marhan, S. (2014): Seasonal controls on grassland microbial biogeography: are they governed by plants, abiotic properties or both? Soil Biology and Biochemistry 71: 21-30; IF: 3.932
  • Rennert, T., Händel, M., Höschen, C., Lugmeier, J., Steffens, M., Totsche, K.U. (2014): A NanoSIMS study on the distribution of soil organic matter, Fe and Mn in a nodule from a Stagnosol. European Journal of Soil Science 65(5): 684-692; IF: 2.649
  • Steffens, M., Kohlpaintner, M., Buddenbaum, H. (2014): Fine spatial resolution mapping of soil organic matter quality in a Histosol profile. European Journal of Soil Science 65(6): 827-839; IF: 2.649

2013

  • Baumann, K., Sanaullah, M., Chabbi, A., Dignac, M.-F., Bardoux, G., Steffens, M., Kögel-Knabner, I., Rumpel, C. (2013): Changes of litter chemistry and soil lignin signature during decomposition and stabilisation of 13C labelled wheat roots in three soil horizons. Soil Biology and Biochemistry 67: 55-61; IF: 3.932
  • Baumann, K., Dignac, M.-F., Rumpel, C., Bardoux, G., Sarr, A., Steffens, M., Maron, P.-A. (2013): Soil microbial diversity affects soil organic matter decomposition in a silty grassland soil. Biogeochemistry 114(1-3): 201-212; IF: 3.488
  • Giese, M., Brueck, H., Gao, Y.Z., Lin, S., Steffens, M., Kögel-Knabner, I., Glindemann, T., Susenbeth, A., Taube, F., Butterbach-Bahl, K., Hoffmann, C., Bai, Y.F., Han, X.G. (2013): N balance and cycle of Inner Mongolia typical steppe: a comprehensive case study of grazing effects. Ecological monographs 83(2): 195-219; IF: 7.107
  • Neculman, R., Rumpel, C., Matusa, F., Godoy, R., Steffens, M., de la Luz Mora, M. (2013): Organic matter stabilisation in two Andisols of contrasting age under temperate rain forest. Biology and Fertility of Soils 49(6): 681-689; IF: 3.398
  • O’Toole, A., Knoth de Zarruk, K., Steffens, M., Rasse, D.P. (2013): Characterization, stability, and plant effects of kiln-produced wheat straw biochar. Journal of Environmental Quality 42(2): 429-436; IF: 2.652
  • Steffens, M., Buddenbaum, H. (2013): Laboratory imaging spectroscopy of a stagnic Luvisol profile - High resolution soil characterisation, classification and mapping of elemental concentrations. Geoderma 195-196: 122-132; IF: 4.036

2012

  • Buddenbaum, H., Steffens, M. (2012): The effects of spectral pretreatments on chemometric analyses of soil profiles using laboratory imaging spectroscopy. Applied and Environmental Soil Science, DOI 10.1155/2012/274903
  • Buddenbaum, H., Steffens, M. (2012): Mapping the distribution of chemical properties in soil profiles using laboratory imaging spectroscopy, SVM and PLS regression. EARSeL eProceedings 11(1): 25-32
  • Dümig, A., Häusler, W., Steffens, M., Kögel-Knabner, I. (2012): Clay fractions from a soil chronosequence after glacier retreat reveal the initial evolution of organo–mineral associations. Geochimica and Cosmochimica Acta 85: 1-18; IF: 4.331
  • Leifeld, J., Steffens, M., Galego-Sala, A. (2012): Sensitivity of peatland carbon loss to organic matter quality. Geophysical Research Letters 39; IF: 4.196
  • Wiesmeier, M., Steffens, M., Mueller, C.W., Kölbl, A., Reskowska, A., Peth, S., Horn, R., Kögel-Knabner, I. (2012): Aggregate stability and physical protection of soil organic carbon in semi-arid steppe soils. European Journal of Soil Science 63: 22-31; IF: 2.649
  • Wiesmeier, M., Kreyling, O., Steffens, M., Schoenbach, P., Wan, H., Gierus, M., Taube, F., Kölbl, A., Kögel-Knabner, I. (2012): Short-term degradation of semiarid grasslands—results from a controlled-grazing experiment in Northern China. Journal of Plant Nutrition and Soil Science, 175(3): 434-442; IF: 1.459
  • Wu, H., Wiesmeier, M., Yu, Q., Steffens, M., Han, X., Kögel-Knabner, I. (2012): Labile organic C and N mineralization of soil aggregate size classes in semiarid grasslands as affected by grazing management. Biology and Fertility of soils 48(3): 305-313; IF: 3.398

2011

  • Buddenbaum, H., Steffens, M. (2011): Laboratory Imaging Spectroscopy of Soil Profiles. Journal of Spectral Imaging, DOI: 10.1255/jsi.2011.a2
  • Kölbl, A., Steffens, M., Wiesmeier, M., Hoffmann, C., Funk, R., Krümmelbein, J., Zhao, Y., Peth, S., Horn, R., Giese, M., Kögel-Knabner, I. (2011): Grazing-induced changes of topsoil properties and their interaction on different spatial scales in a semiarid grassland ecosystem in Inner Mongolia, P.R. China. Plant and Soil 340(1-2): 35-58; IF: 2.952
  • Leopold, M., Völkel, J., Dethier, D., Huber, J., Steffens, M. (2011): Characteristics of a paleosol and its implication for the Critical Zone development, Rocky Mountain Front Range of Colorado, USA. Applied Geochemistry 26(Supplement): S72-S75; IF: 2.268
  • Schneider, K., Leopold, U., Gerschlauer, F., Barthold, F., Giese, M., Steffens, M., Hoffmann, C., Frede, H.-G., Breuer, L. (2011): Spatial and temporal variation of soil moisture in dependence of multiple environmental parameters in semi-arid grasslands. Plant and soil 340(1-2): 73-88; IF: 2.952
  • Steffens, M., Kölbl, A., Schörk, E., Gschrey, B., Kögel-Knabner, I. (2011): Distribution of soil organic matter in fractions and aggregate size classes in grazed semiarid steppe soils. Plant and soil 338(1-2): 63-81; IF: 2.952

2009

  • Abe, S. S, Mueller, C. W., Steffens, M., Kölbl, A., Knicker, H., Kögel-Knabner, I. (2009): Effects of land-use change on chemical composition of soil organic matter in tropical lowland Bolivia. Grassland Science 55: 104-109; IF: 0.627
  • Steffens, M., Kölbl A., Kögel-Knabner I. (2009): Alteration of soil organic matter pools and aggregation in semiarid steppe topsoils as driven by OM input. European Journal of Soil Science 60(2): 198-212; IF: 2.649
  • Steffens, M., Kölbl, A., Giese, M., Hoffmann, C., Totsche, K.U., Breuer, L., Kögel-Knabner, I. (2009): Spatial variability of topsoils and vegetation in a grazed steppe ecosystem in Inner Mongolia (P.R. China). Journal of Plant Nutrition and Soil Science 172(1): 78-90; IF: 1.459
  • Wiesmeier, M., Steffens, M., Kölbl, A., Kögel-Knabner, I. (2009): Degradation and small-scale spatial homogenization of topsoils in intensively grazed steppes of Northern China. Soil and Tillage Research 104: 299-310; IF: 2.622

2005 - 2008

  • Steffens, M., Kölbl, A., Totsche, K.U., Kögel-Knabner, I. (2008): Grazing effects on soil chemical and physical properties in a semiarid steppe of Inner Mongolia (P.R. China). Geoderma 143(1-2): 63-72; IF: 4.036 2007
  • Zhao, Y., Peth, S., Krümmelbein, J., Horn, R., Wang, Z., Steffens, M., Hoffmann, C., Peng, X. (2007): Spatial variability of soil properties affected by grazing intensity in Inner Mongolia grassland. Ecological Modelling 205: 241-254; IF: 2.321
  • Hertweck, G., Wehrmann, A., Liebezeit, G., Steffens, M. (2005): Ichnofabric zonation in modern tidal flats: palaeoenvironmental and palaeotrophic implications. Senckenbergiana maritima (now Marine Biodiversity)35(2): 189-201; IF: 1.104
  • Wolters, A., Steffens, M. (2005): Photodegradation of Antibiotics on Soil Surfaces: Laboratory Studies on Sulfadiazine in an Ozone-Controlled Environment. Environmental Science & Technology 39(16): 6071-6078; IF: 5.330

Journals without peer-review

2009

  • Steppenböden als Klimaretter? TUM-Bodenkundler entzaubern eine Umweltschützer-Hoffnung. Press release of the Technische Universität München, 14.05.2009 (http://www.wzw.tum.de/index.php?id=185&tx_ttnews[tt_news]=106&cHash=5581651a9733b167a21c0cf9e1e65670)

Book chapters

  • Muller, A., Meier, M., Steffens, M., Gattinger, A., Schader, C., 2018, Measuring and improving the environmental impact of organic farming, in: Köpke, U., Improving organic crop cultivation. Cambridge, UK: Burleigh Dodds Science Publishing Limited

Oral presentations

Invited talks

  • Steffens, M.: Identification of distinct functional microstructural domains controlling C storage in soil. Agroscope Reckenholz, Progress seminars of the vanderHeijden, Vogelgsang and Widmer groups in Zürich, Switzerland, 17.01.2018
  • Steffens, M.: Climate and Agriculture. Annual meeting of the climate group of the Swiss Church Aid (HEKS/EPER) in Zürich, Switzerland, 10.01.2018
  • Steffens, M., Zeh, L., Buddenbaum, H., Rogge, D.R.: Quantitative mapping of particulate organic matter in soil profiles. 10th EARSeL Imaging Spectrometry Workshop in Zürich, Switzerland, 19.04.-21.04.2017
  • Steffens, M.: Few recurring types of microdomains define smallest units of soil functioning. Jahrestagung der Bodenkundlichen Gesellschaft der Schweiz in Bern, 09.02.-10.02.2017
  • Steffens, M.: Imaging spectroscopy in soil science. Oral lecture at the Bodenkundliches Seminar at the Universität Bern, Switzerland, 24.05.2016
  • Steffens, M., Buddenbaum, H.: Soil imVisIR – High resolution qualitative and quantitative mapping of soil properties on the pedon scale. Invited talk at the Inaugural Global Workshop of the IUSS working group on Digital Soil Morphometrics in Madison, USA, 01.06.-04.06.2015
  • Steffens, M., Rogge, D., Hoeschen, C., Mueller, C.W.: A novel approach to evaluate the spatial complexity of soil aggregates using NanoSIMS. Solicited talk at the General Assembly of the European Geosciences Union in Vienna, Austria, 12.04.-17.04.2015
  • Steffens, M., Buddenbaum, H.: imVisIR – a new tool for high resolution soil characterization. Oral lecture at Bioforsk - Norwegian Institute for Agricultural and Environmental Research, Ås, Norway, 30.06.2014
  • Steffens, M.: imVisIR – a new tool for high resolution soil characterization. Oral lecture at the Institute of Soil Science and Land Evaluation at the Universität Hohenheim, Germany, 19.05.2014
  • Steffens, M., Buddenbaum, H.: imVisIR – a new tool for high resolution soil characterisation. Solicited presentation at the General Assembly of the European Geosciences Union in Vienna, Austria, 27.04.-02.05.2014
  • Steffens, M.: Unsupervised mapping of soil organic matter quality in a Histosol profile. Oral lecture at the German Remote Sensing Data Center of the German aeronautics and space research center (DLR) in Oberpfaffenhofen, Germany, 26.06.2013
  • Steffens, M.: Grazing cessation changes quantity, quality and distribution of soil organic matter and (micro-)aggregates in a semiarid steppe ecosystem in Inner Mongolia. Invited talk at the Fall meeting of the American Geophysical Union in San Francisco, USA, 03.12.-07.12.2012
  • Steffens, M.: Laboratory imaging spectroscopy of a stagnic luvisol: Qualitative and quantitative mapping of organic and inorganic soil properties. Oral lecture at the Soil Biogeochemistry School of Natural Sciences at the University of California, Merced, USA, 30.11.2012
  • Steffens, M.: Biogeochemistry of grazed semiarid steppe ecosystems: Effects of grazing cessation on quantity, quality and distribution of soil organic matter and aggregation during 25 years. Oral lecture at the Institute of Botany at the Chinese Academy of Science, China, 08.08.2012
  • Steffens, M.: Soils of a semiarid shortgrass steppe in Inner Mongolia: Organic matter composition and distribution as affected by sheep grazing. Oral lecture at the Institute of Grassland Science at the ETH Zürich, Switzerland, 06.03.2012
  • Steffens, M.: Imaging spectroscopy in soil science. Oral lecture at the Institute of Soil Science and Land Evaluation at the Universität Hohenheim, Germany, 23.01.2012
  • Steffens, M.: SOM in future grassland research - approaches and techniques. Oral lecture at the Grassnet workshop “Prospects 2050 – will the grass be greener? - Lessons from future to develop concepts and methods for grassland research” at the Universität Hohenheim, Germany, 06.12.-08.12.2011
  • Steffens, M.: Effects of grazing cessation on the soil organic matter of a semiarid steppe ecosystem in Inner Mongolia, P.R. China. Oral presentation at the BfN and UNEP-WCMC International Workshop “Ecosystem climate relevance beyond forests and peatlands” at the Isle of Vilm, Germany, 26.10.- 29.10.2011
  • Steffens, M.: Soil Organic Matter - Relevance for climate change studies in grassland ecosystems. Oral lecture at the GrassNet Summerschool 2010: The flux matters - Concepts and methods for a cross continental analysis of grassland ecosystems vulnerable to climate change at the Universität Hohenheim, Germany, 06.09.-16.09.2010
  • Steffens, M.: Spatial behaviour of environmental parameters - Geostatistics. Oral lecture at the GrassNet Summerschool 2009 at the Universität Hohenheim, Germany, 24.09.-08.10.2009

Talks

  • Hobley, E., Bauke, S., Steffens, M., Amelung, W., Kögel-Knabner, I.: Hyperspectral imaging of soil cores reveals greatest C storage in subsoil biopores. General Assembly of the European Geosciences Union in Vienna, Austria, 08.04.-13.04.2018
  • Steffens, M., Rogge, D.M., Höschen, C., Lugmeier, J., Mueller, C.W., Kögel-Knabner, I.: Few recurring types of microdomains define smallest units of soil functioning. General Assembly of the European Geosciences Union in Vienna, Austria, 08.04.-13.04.2018
  • Mayer, S., Steffens, M., Schwindt, D., Völkel, J., Kögel-Knabner, I.: Zwischen Hang und Aue - Kohlenstoffdynamik im Einzugsgebiet des Otterbach. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Göttingen, Germany, 02.09.-07.09.2015
  • Pihlap, E., Steffens, M., Kögel-Knabner, I.: Initial development of soil structure and soil organic matter in an agriculturally managed chronosequence on recultivated loess. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Göttingen, Germany, 02.09.-07.09.2015
  • Steffens, M., Buddenbaum, H., Zeh, L., Rogge, D.: Quantitative mapping of particulate organic matter in soil profiles. 6th International Symposium on Soil Organic Matter in Harpenden, United Kingdom, 03.09.–07.09.2017
  • Hobley, E., Kriegs, S., Steffens, M.: Hyperspectral imaging to investigate the distribution of organic matter and iron down the soil profile. General Assembly of the European Geosciences Union in Vienna, Austria, 23.04.-28.04.2017
  • Hirmas, D., Steffens, M., Sullivan, P., Zhang, C., Giménez, D.: Coupling multistripe laser triangulation with hyperspectral imaging VisNIR spectroscopy to elucidate the feedbacks between soil structure, hydrology, and organic matter. General Assembly of the European Geosciences Union in Vienna, Austria, 17.04.-22.04.2016
  • Leifeld, J, Bader, C., Giger, R., Müller, M., Wüst, C., Mössinger, E., Krüger, J.P., Steffens, M., Müller, C.W., Gubler, L., Szidat, S., Sommer, M.: The underappreciated role of organic soils in the terrestrial C and N cycle. Annual meeting of the Bodenkundliche Gesellschaft der Schweiz in Geneva, Switzerland, 04.02.-05.02.2016
  • Mueller, C.W., Höschen, T., McLean, H., Doetterl, S., Steffens, M., Buddenbaum, H., van Oost, K., Lugmeier, J., Höschen, C.: NanoSIMS vs. soil complexity – testing new approaches to account for topography and spatial heterogeneity. 5th NanoSIMS International Workshop in Manchester, United Kingdom, 12.10.-13.10.2015
  • Kriegs, S., Buddenbaum, H., Rogge, D., Steffens, M.: imVisIR: Hochaufgelöste Klassifikation und Elementkartierung der Pseudovergleyung in Parabraunerdeprofilen. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in München, Germany, 05.09.-10.09.2015
  • Mueller, C.W., Höschen, C., Angst, G., Heinrich, L., Dottl, A., Kölbl, A., Steffens, M., Buddenbaum, H.: Strukturen und Prozesse auf der Mikroskala - NanoSIMS in der Bodenkunde. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in München, Germany, 05.09.-10.09.2015
  • Tenzer, S., Steffens, M., Rennert, T.: Qualitätsparameter für organische Bodensubstanz mittels DRIFT-und Festkörper-13C-NMR-Spektroskopie. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in München, Germany, 05.09.-10.09.2015
  • Wiesmeier, M., Munro, S., Barthold, F., Steffens, M., Schad, P., Kögel-Knabner, I.: Carbon storage capacity of semi-arid grassland soils and sequestration potentials in Northern China. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in München, Germany, 05.09.-10.09.2015
  • Zeh, L., Rogge, D., Buddenbaum, H., Steffens, M.: Imaging VNIR-SWIR-spectroscopy - POM enrichment in longterm ungrazed soil profiles. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in München, Germany, 05.09.-10.09.2015
  • Wetterlind, J., Viscarra Rossel, R., Steffens, M.: Using vis-NIR spectroscopy to estimate soil carbon fractions identified by solid state 13C NMR spectroscopy. 4th Global Workshop on Proximal Soil Sensing in Hangzhou, China, 12.05.-15.05.2015
  • Kirkels, F., Cammeraat, E., Kalbitz, K., van Oost, K., Ellerbrock, R., Follain, S., Fuchslueger, L., Gerke, H., Heckrath, G., Kögel-Knabner, I., Kuhn, N., van Loon, E., Quinton, J., Richter, A., Salvador-Blanes, S., Sommer, M., Steffens, M.: Turnover of eroded soil organic carbon after deposition in terrestrial and aquatic environments. General Assembly of the European Geosciences Union in Vienna, Austria, 12.04.-17.04.2015
  • Kriegs, S., Buddenbaum, H., Rogge, D., Steffens, M.: Digital soil classification and elemental mapping using imaging Vis-NIR spectroscopy: How to explicitly quantify stagnic properties of a Luvisol under Norway spruce. General Assembly of the European Geosciences Union in Vienna, Austria, 12.04.-17.04.2015
  • Steffens, M., Zeh, L., Rogge, D., Buddenbaum, H.: Soil imVisIR – Quantification of soil organic matter pools in undisturbed soil profiles. 9th EARSeL Imaging Spectrometry Workshop in Luxembourg, Luxembourg, 14.04.-16.04.2015
  • Wiesmeier, M., Munro, S., Barthold, F., Steffens, M., Schad, P., Kögel-Knabner, I.: Carbon storage capacity of semi-arid grassland soils and sequestration potentials in Northern China. General Assembly of the European Geosciences Union in Vienna, Austria, 12.04.-17.04.2015
  • Steffens, M., Buddenbaum, H.: imVisIR – a new tool for high resolution soil characterisation. International annual meeting of the Soil Science Society of America in Long Beach, USA, 02.11.-05.11.14
  • Lair, G.J., Schiefer, J., Wild, E.M., Steffens, M., Blum, W.: Impact of Time and Land Use on Vertical carbon distribution and soil structure in chernozems of central europe. 20th World Congress of Soil Science in Jeju, Korea, 08.06.-13.06.2014
  • Mueller, C.W., Hoeschen, C., Lugmeier, J., Vogel, C., Werner, F., Kölbl, A., Prietzel, J., Steffens, M., Kögel-Knabner, I.: Organic matter at the micro-scale – using NanoSIMS in soil science. 6th international workshop on Soil and Sedimentary Organic Matter Stabilization and Destabilization in Kiawah Island, USA, 05.10.-09.10.2014
  • Fritzsche, A., Ritschel, T., Schröder, C., Wieczorek, A.K., Müller, C.W., Händel, M., Steffens, M., Pagels, B., Totsche, K.U.: How redox gradients determine the concentrations of mobile arsenic and proteins in soils. Interdisciplinary workshop of the German Soil Science Society (kommissionsübergreifende Sitzung der Kommissionen II, III und VII der Deutschen Bodenkundlichen Gesellschaft) in Freising, Germany, 04.05.-06.05.2014
  • Steffens, M., Kohlpaintner, M., Buddenbaum, H.: imVisIR – spatially explicit characterisation of soil organic matter quality on the pedon scale. General Assembly of the European Geosciences Union in Vienna, Austria, 27.04.-02.05.2014
  • Zeh, L., Buddenbaum, H., Steffens, M.: Imaging Vis-NIR spectroscopy - mapping SOM quality and quantity in undisturbed soil profiles of semiarid steppe in Inner Mongolia. General Assembly of the European Geosciences Union in Vienna, Austria, 27.04.-02.05.2014
  • Steffens, M., Kohlpaintner, M., Buddenbaum, H.: Kartierung der Kohlenstoffqualität in einer Tangelrendzina mittels bildgebender Vis-NIR-Spektroskopie. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Rostock, Germany, 07.09.-12.09.2013
  • Rennert, T., Höschen C., Steffens, M.: Nanoskalige Speziierung von Cu und Co in einem Technosol. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Rostock, Germany, 07.09.-12.09.2013
  • Regan, K., Steffens, M., Prati, D., Berner, D., Boeddinghaus, R., Schmitt, B., Boch, S., Stempfhuber, B., Schloter, M., Kandeler, E., Marhan, S.: Soil microbial communities in grasslands – spatial and temporal patterns at the local scale. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Rostock, Germany, 07.09.-12.09.2013
  • Müller, C., Steffens, M., Buddenbaum, H., Höschen, C., Kao-Kniffin, J., Bockheim, J.: Mikroskalige Heterogenität in Permafrostböden – Kombination von Vis-NIR Spektroskopie und NanoSIMS. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Rostock, Germany, 07.09.-12.09.2013
  • Regan, K., Steffens, M., Prati, D., Berner, D., Boeddinghaus, R., Schmitt, B., Boch, S., Stempfhuber, B., Schloter, M., Kandeler, E., Marhan, S.: Soil microbial communities in grasslands – spatial and temporal patterns at the local scale. Annual meeting of the Ecological Society of America in Minneapolis, USA, 04.08.-09.08.2013
  • Steffens, M., Höschen, C., Buddenbaum, H., Mueller, C.W.: VIS-NIR imaging spectroscopy enables upscaling of µm-scaled SEM- and NanoSIMS information to soil horizons. 8th EARSeL Imaging Spectrometry Workshop in Nantes, France, 08.04.-10.04.2013
  • Fritzsche, A., Ritschel, T., Steffens, M., Händel, M., Schröder, C., Wieczorek, A., Totsche K. U.: Temporal variability of DOM from soils and its effect on ferrihydrite aggregation. Iron Biogeochemistry - From Molecular Processes to Global Cycles. Conference in Ascona, Switzerland, 03.03.-08.03.2013
  • Müller, C.W., Steffens, M., Buddenbaum, H., Höschen, C., Kao-Kniffin, J., Bockheim, J.: Combined VIS-NIR imaging spectroscopy and NanoSIMS analyses of intact cores of permafrost affected soils. 4th international congress of the European Confederation of Soil Science Societies “Eurosoil 2012” in Bari, Italy, 02.07.-06.07.2012
  • Baumann, K., Dignac M.-F., Maron. P.-A., Chabbi, A., Bardoux, G., Steffens, M., Sarr, A., Ranjard, L., Mathieu, O., Leveque, J., Rumpel, C.: Soil microbial diversity affects organic matter decomposition. 4th international congress of the European Confederation of Soil Science Societies “Eurosoil 2012” in Bari, Italy, 02.07.-06.07.2012
  • Glombitza, C., Bernard, S., Mangelsdorf, K., Schreiber, A., Steffens, M., Kögel-Knabner, I.: New insights into gas shale fabrics using selective chemical degradation combined with STXM. 3rd EAGE Shale Workshop in Barcelona, Spain, 23.01.-25.01. 2012
  • Steffens, M., Buddenbaum, H.: Räumlich hochaufgelöste Erfassung der C-, N , Al-, Fe- und Mn-Gehalte in einem Pseudogleyprofil mittels abbildender Spektroskopie. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Berlin, Germany, 03.09.-09.09.2011
  • Baumann, K., Dignac, M.-F., Maron, P.-A., Chabbi, A., Bardoux, G., Steffens, M., Sarr, A., Ranjard, L., Mathieu, O.,  Leveque, J., Rumpel, C.: Mikrobielle Diversität beeinflusst den Abbau organischer Substanz im Boden. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Berlin, Germany, 03.09.-09.09.2011
  • Steffens, M., Buddenbaum, H.: Laboratory imaging spectroscopy of a stagnic luvisol profile. EARSeL 7th SIG-Imaging Spectroscopy Workshop in Edinburgh, Scotland, 11.04.-13.04.2011
  • Steffens, M., Buddenbaum, H.: Laboratory imaging spectroscopy of a stagnic luvisol profile. General Assembly of the European Geosciences Union in Vienna, Austria, 03.04.-08.04.2011
  • Steffens, M., Buddenbaum, H.: Hyperspectral assessment of the three-dimensional variability of various soil properties in a stagnic Luvisol. General Assembly of the European Geosciences Union in Vienna, Austria, 02.05.-07.05.2010
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Stabilisierung frischer organischer Bodensubstanz in Gesamtprofilen nordchinesischer Steppenböden nach einem Beweidungsstopp. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Bonn, Germany, 05.09.-13.09.2009
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Stabilisation of soil organic matter in complete soil profiles of semiarid steppe soils after grazing cessation. International Symposium on Soil Organic Matter Dynamics: Land Use, Management and Global Change in Colorado Springs, USA, 06.07.-09.07.2009
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Solid-state 13C NMR experiments reveal effects of aggregate size on the chemical composition of particulate organic matter in grazed steppe soils. General Assembly of the European Geosciences Union in Vienna, Austria, 19.04--24.04.2009
  • Mueller, C. W., Pechenkina, N., Grünz, G., Kölbl, A., Steffens, M., Heister, K., Kögel-Knabner, I.: Fate of small charred particles in soils - importance of aggregation. General Assembly of the European Geosciences Union in Vienna, Austria, 19.04.-24.04.2009
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: New Insights Into Carbon Sequestration of Steppe Soils - Composition and Turnover of Soil Organic Matter Fractions and Aggregation. Fall Meeting of the American Geophysical Union in San Francisco, USA, 15.12.-19.12.2008
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Composition and turnover of soil organic matter fractions and aggregation in semiarid steppe topsoils as driven by organic matter input. 3rd international congress of the European Confederation of Soil Science Societies “Eurosoil 2008” in Vienna, Austria, 25.08.-29.08.2008
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Ausgewählte Oberbodenparameter unter verschiedenen Beweidungsintensitäten in einem Steppe-Ökosystem. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Marburg, Germany, 05.09.-13.09.2005

Poster presentations

  • Pihlap, E., Steffens, M., Kögel-Knabner, I.: Development of SOM and aggregation in an agriculturally managed re-cultivated loess. General Assembly of the European Geosciences Union in Vienna, Austria, 08.04.-13.04.2018
  • Steffens, M., Rogge, D., Kölbl, A., Hoeschen, C., Lugmeier, J., Mueller, C.W., Kögel-Knabner, I.: Digital image processing and NanoSIMS: Aggregates are built by few recurring types of functional microdomains. 6th International Symposium on Soil Organic Matter in Harpenden, United Kingdom, 03.09.–07.09.2017
  • Näthe, K., Michalzik, B., Levia, D., Steffens, M.: Ground-fire effects on the composition of dissolved and total organic matter in forest floor and soil solutions from Scots pine forests in Germany:  new insights from solid state 13C NMR analysis. General Assembly of the European Geosciences Union in Vienna, Austria, 17.04.-22.04.2016
  • Steffens, M., Buddenbaum, H.: imVisIR – a new tool for high resolution soil characterization. Swiss Soil science congress in Geneva, Switzerland, 04.02.-05.02.2016
  • Steffens, M., Rogge, D., Hoeschen, C., Müller, C.W.: Elucidating aggregate microstructure with NanoSIMS and digital image processing. 5th International Symposium on Soil Organic Matter in Göttingen, Germany, 20.09.-24.09.2015 (Best poster award)
  • Kriegs, S., Buddenbaum, H., Rogge, D., Steffens, M.: Digital soil classification and elemental mapping using imaging Vis-NIR spectroscopy: Quantification of stagnic properties in Luvisol profiles under Norway Spruce and European Beech. 9th EARSeL Imaging Spectrometry Workshop in Luxembourg, Luxembourg, 14.04.-16.04.2015
  • Kriegs, S., Spohn, M., Buddenbaum, H., Steffens, M.: Imaging Vis-NIR-SWIR spectroscopy and soil zymography – Spatially explicit quantification of enzyme activity and chemical hot spot characterisation. Soil processes – is the whole system regulated at ‘hot spots’? From micro-scales to the pedon. Interdisciplinary workshop of the German Soil Science Society (kommissionsübergreifende Sitzung der Kommissionen II, III und VII der Deutschen Bodenkundlichen Gesellschaft) in Freising, Germany, 04.05.-06.05.2014
  • Kirkels, F., Cammeraat, E., Kalbitz, K., Van Oost, K., Ellerbrock, R., Follain, S., Gerke, H., Heckrath, G., Kögel-Knabner, I., Kuhn, N., Quinton, J., Salvador-Blanes, S., Sommer, M., Steffens, M.: The fate of eroded soil organic carbon along a European transect - controls after deposition in terrestrial and aquatic systems. General Assembly of the European Geosciences Union in Vienna, Austria, 27.04.-02.05.2014
  • Liang, C., Steffens, M., Jastrow, J., Zhang, X., Antonopoulos, D., Kögel-Knabner, I.: Decoupled connection between soil microbial community and organic geochemical composition: a case study in Arctic tundra. Fall meeting of the American Geophysical Union in San Francisco, USA, 09.12.-13.12.2013
  • Steffens, M., Kohlpaintner, M., Buddenbaum, H.: Unsupervised mapping of SOM quality in a Histosol profile using PCA-transformed hyperspectral data. 5th International Workshop on Soil and Sedimentary Organic Matter Stabilization and Destabilization in Ascona, Switzerland, 07.10.-11.10.2012
  • Regan, K., Steffens, M., Berner, D., Boeddinghaus, R., Schmitt, B., Boch, S., Prati, D., Kandeler, E., Marhan, S.: Soil microbial communities in grasslands - spatial and temporal patterns at the local scale. 14th International Symposium on Microbial Ecology “The Power of the Small” in Copenhagen, Denmark, 19.08.-24.08.2012
  • Steffens, M., Kohlpaintner, M., Buddenbaum, H.: High resolution mapping of soil organic matter quality in a Histosol profile with imaging spectroscopy. 4th international congress of the European Confederation of Soil Science Societies “Eurosoil 2012” in Bari, Italy, 02.07.-06.07.2012
  • Regan, K., Steffens, M., Berner, D., Boeddinghaus, R., Prati, D., Schmitt, B., Boch, S., Marhan, S., Kandeler, E.: Soil microbial communities in grasslands – biogeography and seasonal variation. 4th international congress of the European Confederation of Soil Science Societies “Eurosoil 2012” in Bari, Italy, 02.07.-06.07.2012
  • Leopold, M., Völkel, J., Dethier, D., Huber, J., Steffens, M.: Characteristics of a paleosol and its implication for the Critical Zone development, Rocky Mountain Front Range of Colorado, USA. 9th International Symposium on Geochemistry of the Earth’s Surface in Boulder, USA, 03.06.-07.06.2011
  • Buddenbaum, H., Steffens, M.: Three Dimensional Distribution of Chemical Properties in Soil Profiles Using Laboratory Imaging Spectroscopy, SVM and PLS Regression. EARSeL 7th SIG-Imaging Spectroscopy Workshop in Edinburgh, Austria, 11.04.-13.04.2011 (Best poster award)
  • Wiesmeier, M., Steffens, M., Kölbl, A., Kögel-Knabner, I.: Carbon sequestration in degraded semi-arid grasslands of Northern China. General Assembly of the European Geosciences Union in Vienna, Austria, 03.04.-08.04.2011
  • Steffens, M., Buddenbaum, H.: Hyperspectral assessment of the three-dimensional variability of various soil properties in a stagnic Luvisol. 4th international conference on organic matter stabilization and ecosystem functions in Presqu'île de Giens, France, 19.09.-23.09.2010
  • Lavaud, A., Croué, J.P., Berwick, L., Steffens, M., Chabbi, A.: Structural properties of dissolved organic carbon in deep horizons of an arable soil. General Assembly of the European Geosciences Union in Vienna, Austria, 02.05.-07.05.2010
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Stabilisation of soil organic matter by aggregation in a grazed semiarid steppe (NE-China). 3rd International Conference on Mechanisms of Organic Matter Stabilisation and Destabilisation in Soils and Sediments in Adelaide, Australia, 23.09.-26.09.2007
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Bedeutung der Aggregierung für die Stabilisierung der organischen Bodensubstanz in beweideten semiariden Steppegebieten NO-Chinas. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Dresden, Germany, 02.09.-09.09.2007
  • Kölbl, A., Steffens, M., Kögel-Knabner, I.: Charakteristische Eigenschaften der mineralassoziierten organischen Substanz in Steppeböden: Störung der biologisch-chemischen Prozesskette der Humusstabilisierung durch intensive Beweidung. Annual meeting of the Deutsche Bodenkundliche Gesellschaft in Dresden, Germany, 02.09.-09.09.2007
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Sheep grazing changes quantity and quality of SOM and (micro-)aggregates in a semiarid steppe ecosystem of northeastern China. Symposium on Soil organic matter in agro-ecosystems in Poitiers, France, 16.07.-19.07.2007 (Best poster award)
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Composition of particulate organic matter in a grazed steppe ecosystem in Inner Mongolia (China). 3rd European symposium on NMR spectroscopy in Soil, Geo and Environmental Sciences in Freising, Germany, 06.08.-09.08.2006
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Destabilization of SOM following overgrazing and aggregate deterioration in a steppe ecosystem in Inner Mongolia (China). 18th World Congress of Soil Science in Philadelphia, USA, 09.07.-15.07.2006
  • Steffens, M., Kölbl, A., Kögel-Knabner, I.: Destabilization of SOM following overgrazing and aggregate deterioration in a steppe ecosystem in Inner Mongolia (China). 2nd International Conference on Mechanisms of Organic Matter Stabilization and Destabilization in Soils in Monterey, USA, 09.10.-13.10.2005
  • Wolters, A., Steffens, M.: Photodegradation and volatilization of antibiotics: laboratory studies on the impact of different surfaces and environmental factors on the fate of sulfadiazine. SETAC Europe 14th Annual Meeting in Praque, Czech Republic, 18.04.-22.04.2004

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