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Faculty of Biology, Chemistry & Earth Sciences

Professorship of Ecological Services (PES) – Prof. Dr. Thomas Koellner

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Former Members

Dr. Gisele AlarconHide
Gisele Alarcon, Ehemalige Mitarbeiterin an der Universität Bayreuth

Gisele worked as a guest scientist in our group in 2012.

Dr. Sebastian Arnhold  †Hide
Dr. Sebastian Arnhold, ehemaliger Mitarbeiter an der Universität Bayreuth

Nachruf – Dr. Sebastian Arnhold – † Nov. 2017

Curriculum vitae:

  • Since 2014: Senior scientist at the Professorship of Ecological Services, University of Bayreuth

  • 2013-2014: Postdoctoral research associate at the Department of Soil Physics, University of Bayreuth

  • 2009-2013: Doctoral student in the International Research Training Group TERRECO, University of Bayreuth

  • 2002-2008: Diploma student at the Technical University of Freiberg


Agricultural intensification and international trade of agricultural products have increased the production and availability of food but caused substantial degradation of soil and water resources in many regions worldwide with dramatic consequences for the livelihood of local communities and the environment.

Sebastian is investigating the linkages between global markets and policies, local land use and management decisions, and their ecological consequences in regional human-environment systems. Major focus of his research is the development of a spatial modeling framework to predict the impacts of agricultural production on other ecosystem services such as water supply and soil fertility within a global economic context.

A better understanding of the relationship between global economic drivers and the social and ecological interactions within regional human-environment systems can help us to develop more sustainable land use policies and counteract further degradation of soil and water resources in the future.


Articles in peer-reviewed journals

  • Choi, K., Arnhold, S., Huwe, B., Reineking, B., 2017. Daily based Morgan-Morgan-Finney (DMMF) model: A spatially distributed conceptual soil erosion model to simulate complex soil surface configurations. Water 9, 278.

  • Maharjan, G., Ruidisch, M., Shope, C. L., Choi, K., Huwe, B., Kim, S. J., Tenhunen, J., Arnhold, S., 2016. Assessing the effectiveness of split fertilization and cover crop cultivation in order to conserve soil and water resources and improve crop productivity. Agricultural Water Management 163, 305-318.

  • Otieno, D., Ondier, J., Arnhold, S., Okach, D., Ruidisch, R., Lee, B., Kolb, A., Onyango, J., Huwe, B., 2015. Patterns of CO2 exchange and productivity of the herbaceous vegetation and trees in a humid savanna in western Kenya. Plant Ecology 216, 1441-1456.

  • Arnhold, S., Otieno, D., Onyango, J., Koellner, T., Huwe, B., Tenhunen, J., 2015. Soil properties along a gradient from hillslopes to the savanna plains in the Lambwe Valley, Kenya. Soil and Tillage Research 154, 75-83.

  • Lindner, S., Otieno, D., Lee, B., Xue, W., Arnhold, S., Kwon, H., Huwe, B., Tenhunen, J., 2014. Carbon dioxide exchange and its regulation in the main agro-ecosystems of Haean catchment in South Korea. Agriculture, Ecosystems and Environment 199, 132-145.

  • Arnhold, S., Lindner, S., Lee, B., Martin, E., Kettering, J., Nguyen, T. T., Koellner, T., Ok, Y., Huwe, B., 2014. Conventional and organic farming: Soil erosion and conservation potential for row crop cultivation. Geoderma 219-220, 89-105.

  • Shope, C. L., Maharjan, G., Tenhunen, J., Seo, B., Kim, K., Riley, J., Arnhold, S., Koellner, T., Ok, Y., Peiffer, S., Kim, B., Park, J., Huwe, B., 2014. Using the SWAT model to improve process descriptions and define hydrologic partitioning in South Korea. Hydrology and Earth System Sciences 18, 539-557.

  • Bartsch, S., Peiffer, S., Shope, C. L., Arnhold, S., Jeong, J., Park, J., Eum, J., Kim, B., Fleckenstein, J. H., 2013. Monsoonal-type climate or land-use management: Understanding their role in the mobilization of nitrate and DOC in a mountainous catchment. Journal of Hydrology 507, 149-162.

  • Ruidisch, M., Arnhold, S., Huwe, B., Bogner, C., 2013. Is ridge cultivation sustainable? A case study from the Haean catchment, South Korea. Applied and Environmental Soil Science, Article ID 679467, 11 pages.

  • Arnhold, S., Ruidisch, M., Bartsch, S., Shope, C. L., Huwe, B., 2013. Simulation of runoff patterns and soil erosion on mountainous farmland with and without plastic-covered ridge-furrow cultivation in South Korea. Transactions of the ASABE 56, 667-679.

  • Ruidisch, M., Kettering, J., Arnhold, S., Huwe, B., 2013. Modeling water flow in a plastic mulched ridge cultivation system on hillslopes affected by South Korean summer monsoon. Agricultural Water Management 116, 204-217.


  • Arnhold, S., 2013. Soil erosion and conservation potential of row crop farming in mountainous landscapes of South Korea. Dissertation thesis, University of Bayreuth, Germany.

  • Arnhold, S., 2008. Estimation of particulate phosphorus transport into the Pöhl reservoir using the soil erosion simulation model EROSION 3D. Diploma thesis, Technical University of Freiberg, Germany (in German).


  • Arnhold, S., McLachlan, N., Koellner, T., 2016. Potential leakage effects of EU agri-environmental policies on global ecosystem services. European Ecosystem Services Conference, September 19-23, Antwerp, Belgium.

  • Arnhold, S., Kim, I., Ahn, S., Ruidisch, M., Kim, S., Koellner, T., 2015. Land use and land cover change in mountainous watersheds: Consequences for ecosystem services of water yield and water quality. International Soil and Water Assessment Tool Conference, June 24-26, Pula, Italy.

  • Arnhold, S., Otieno, D., Huwe, B., 2014. Impact of land use on soil properties of the Lambwe Valley. Consortium for Research in East African Tropical Ecosystems Workshop, February 19, Maseno, Kenya.

  • Arnhold, S., Lindner, S., Lee, B., Martin, E., Kettering, J., Ruidisch, M., Stöckler, E., Bartsch, S., Eum, J., 2013. Land management, erosion, and sediment transport in a mountainous landscape. Ecosystem Change and Society Workshop, January 14-20, Bayreuth, Germany.

  • Arnhold, S., 2012. Soil erosion and conservation - Examples of erosion research in South Korea. Land Use Systems Research Group Seminar, December 18, Maseno, Kenya.

  • Arnhold, S., Stöckler, E., Huwe, B., 2012. Strategies to develop and evaluate soil conservation measures for complex mountainous farmland in South Korea. EGU General Assembly, April 22-27, Vienna, Austria.

  • Arnhold, S., 2011. Soil erosion and management measures in mountainous watersheds of Korea. TERRECO Science Conference, October 2-7, Garmisch-Partenkirchen, Germany.

  • Arnhold, S., Shope, C. L., Huwe, B., 2011. Plastic covered cropping systems: Runoff patterns and soil erosion rates. International Symposium on Soil Erosion and Landscape Evolution, September 18-21, Anchorage, USA.

  • Arnhold, S., Ruidisch, M., Glaser, B., Huwe, B., Kettering, J., Ok, Y., Tenhunen, J., 2009. Soil erosion and management measures in the Haean catchment of Korea. AGU Fall Meeting, December 14-18, San Francisco, USA.

Dr. Yohannes AyanuHide
Yohannes Ayanu, ehemaliger Mitarbeiter an der Universität Bayreuth

Yohannes finished his PhD-Studies "Remote sensing-based analysis of land cover detrimental for ecosystem services in fragile lands of Ethiopia" in 2015.

Dr. Laura de BaanHide
Laura de Baan, ehemaliger Mitarbeiterin an der Universität Bayreuth

Laura was external PhD student and teacher on Life Cycle Assessment in our group.

    Dr. Andrea Früh-MüllerHide
    Andrea Früh-Müller, Universität Bayreuth
    • 02/2017-08/2018: Project SUSALPS - Sustainable use of alpine and pre- alpine grassland soils in a changing climate
    • Since 02/2017: Research associate at the Professorship of Ecological Services, University of Bayreuth
    • 2015-2017: Project ZA-NExUS - Zukunftsfähige Agrarpolitik – Natur erhalten, Umwelt sichern; Funded by the German Federal Agency for Nature Conservation
    • Since 2013: Doctoral student at the Department of Animal Ecology and Institute of Landscape Ecology and Resource Management, Justus-Liebig University Gießen
    • 2013-2015: Project JAGUAR – Sustainable futures for cultural landscapes of Japan and Germany – biodiversity and ecosystem services as unifying concepts for the management of agricultural regions
    • 2012 – 2013: Research associate at the Coordination Center for sustainable Development, Nürtingen-Geislingen University
    • 2009 – 2012: Master student Global Change Ecology (M.Sc) at the University of Bayreuth
    • 2008 – 2009: Landscape Architect, TEAM 4 in Nuremberg, Germany
    • 2004 – 2008: Diploma student Landscape Architecture and Environmental Planning (Dipl.-Ing.); University Ostwestfalen-Lippe, Höxter
    Yohannes KidaneHide
    Yohannes Kidane, ehemaliger Mitarbeiter der Universität Bayreuth

    Yohannes was working as Coordinator of M.Sc. study programme Global Change Ecology (GCE) from 10/2011 to 3/2012.

    Dr. Ilkwon KimHide
    Ilkwon Kim, ehemaliger Mitarbeiter an der Universität Bayreuth

    Ilkwon was working in the TERRECO project between 2012 and 2016 and was PhD student in the group.

    Daniela KretzHide
    Daniela Kretz, ehemaliger Mitarbeiterin an der Universität Bayreuth

    Daniela was working as Coordinator of M.Sc. study programme Global Change Ecology from 2012 to 2013.

    ​Irmgard LauterbachHide
    Irmgard Lauterbach, ehemalige Mitarbeiterin an der Universität Bayreuth

    Irmgard Lauterbach was working as Secretary for the Professorship of Ecological Services from 2009 to 2014.

    Dr. Saem LeeHide
    Saem Lee, ehemalige Mitarbeiterin an der Universität Bayreuth

    Contact data:

    Saem was PhD student in our group and was working in the TERRECO project between 2011 and 2015.

      Dr. Danielle Maia SouzaHide
      Dr. Danielle Maia Souza, ehemaliger Mitarbeiterin der Universität Bayreuth

      Subsequent to her staff membership from 11/2010 to 04/2011, Danielle started working at the Joint Research Centre (JRC) of the European Commission.

      ​Dr. Bunafsha MislimshoevaHide
      Bunafsha Mislimshoeva, ehemaliger Mitarbeiterin der Universität Bayreuth

      Bunafsha was PhD student in our group between 2011 and 2015.

        PD Dr. Trung Thanh NguyenHide
        Dr. Trung Thanh Nguyen, ehemaliger Mitarbeiter der Universität Bayreuth

        Trung worked as a senior researcher at the Bayreuth Center of Ecology and Environmental Research (BayCEER) at the University of Bayreuth and associated to o. After that he joined the University of Hannover, Institute for Environmental Economics and World Trade.

        Dr. Patrick PoppenborgHide
        Dr. Patrick Poppenborg, Universität Bayreuth

        Curriculum vitae:

        • 2009-2018: PhD student at the Professorship of Ecological Services, University of Bayreuth
        • 2007/2008: Freelance work at the Federal Research Institute for Rural Areas, Forestry and Fisheries (vTI), University of Hamburg
        • 2007: Scientific assisstant at the Research Center Landscape Development and Mining Landscapes, Brandenburg University of Technology Cottbus
        • 2007: Internship at the Vattenfall Europe Mining AG, Cottbus
        • 2007: Master of Science with a major in Tropical and International Forestry, University of Goettingen
        • 2006: Master's thesis data collection at STORMA, CeTSAF, Sulawesi, Indonesia
        • 2005: Study project at the GTZ Mekong River Commission (MRC), Vientiane, Laos
        • 2005: Graduate assisstant at the Institute of Silviculture, University of Goettingen
        • 2005: Bachelor of Science at the Faculty of Forest Sciences and Forest Ecology, University of Goettingen
        • 2002/2003: Internship and freelance work at forest management Graf von Kanitz, Cappenberg
        ​Dr. Christoph Schroeter-SchlaackHide
        Christoph Schroeter-Schlaack, ehemaliger Mitarbeiter der Universität Bayreuth

        After his staff membership from 7/2011 to 12/2011, Christoph continued working for the UFZ.

        Leila Schuh Hide

        Leila worked as student research assistant in the group in 2016.

        ​Paul SchumacherHide
        Paul Schumacher, ehemaliger Mitarbeiter der Universität Bayreuth

        Paul was student research assisstant in our group in 2014. He is now working with GIZ.

        Laura SommerHide
        Laura Sommer, ehemalige Mitarbeiterin der Universität Bayreuth

        Laura was student research assisstant in 2014. Now she is working as PhD Candidate at the Department of Psychology (Norwegian University of Science and Technology, NTNU)​

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