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Ralf Kiese

Independent

Karlsruhe Institute of Technology

SCHOLARLY PAPERS

9

DOWNLOADS

508

TOTAL CITATIONS

1

Scholarly Papers (9)

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1.

Managing the dynamic cycling of organic nitrogen pools in agricultural soil-plant systems under the pressure of global change

Number of pages: 25 Posted: 06 May 2025
Steffen A. Schweizer, Julia Kepp, Ralf Kiese, Narda L. Pacay-Barrientos, Elisabeth Ramm, Michael Schloter, Stefanie Schulz and Michael Dannenmann
Technische Universität München (TUM), Karlsruhe Institute for Technology, Independent, Technische Universität München (TUM), Karlsruhe Institute for Technology, Technical University Munich, German Research Center for Environmental Health - Helmholtz Center Munich and Karlsruhe Institute of Technology
Downloads 96 (715,072)

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2.

Elevated In-Stream CO2 Concentration Stimulates Net-N2O Production from Global Fluvial Ecosystems

Number of pages: 39 Posted: 18 Mar 2025
Ricky Mwangada Mwanake, Gretchen M. Gettel, Elizabeth Gachibu Wangari, George Macharia, Ruben Martinez-Cuesta, Stefanie Schulz, Michael Schloter, Klaus Butterbach-Bahl and Ralf Kiese
Karlsruhe Institute of Technology, Aarhus University, Independent, Independent, Technical University Munich, German Research Center for Environmental Health - Helmholtz Center Munich, Technical University Munich, Aarhus University and Independent
Downloads 73 (852,604)

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Nitrification, Denitrification, Climate feedback, Anthropogenic influence, Carbon and Nitrogen cycling, Rivers, Greenhouse gases

3.

Natural abundance sediment δ¹⁵N as a proxy for long-term gross N-turnover processes, GHG emissions, and denitrification hotspots within fluvial ecosystems

Number of pages: 36 Posted: 08 Oct 2025
Ricky Mwangada Mwanake, Elizabeth Gachibu Wangari, Hanna-Marie Kikowatz, Matti Allgaier, Allison Kolar and Ralf Kiese
Karlsruhe Institute of Technology, Independent, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN and Independent
Downloads 57 (989,921)

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Carbon dioxide, methane, Nitrous oxide, headwater streams, isotopic pool dilution, gross nitrification rates, gross ammonification rates

4.

Long-Term Changes of Δ15n Natural Abundance in 72 Temperate Grassland Soils are Small and Indicate Management Rather than Climate and Biodiversity

Number of pages: 26 Posted: 10 Apr 2025
Julia Kepp, Ralf Kiese, Valentin H. Klaus, Till Kleinebecker, Narda L. Pacay-Barrientos, Rudi Schäufele, Michael Schloter, Ingo Schöning, Marion Schrumpf, Stefanie Schulz, Theresa Schwärzler, Steffen A. Schweizer and Michael Dannenmann
Karlsruhe Institute for Technology, Independent, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Technical University Munich, Max Planck Institute for Biogeochemistry, Max Planck Institute for Biogeochemistry, German Research Center for Environmental Health - Helmholtz Center Munich, affiliation not provided to SSRN, Technische Universität München (TUM) and Karlsruhe Institute of Technology
Downloads 54 (1,020,567)

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15N natural abundance, Fertilisation, grazing, Nitrogen cycling

5.

The Role of Agricultural Intensification on Fluvial GHG Fluxes from Tropical and Temperate Catchments

Number of pages: 24 Posted: 05 Feb 2025
Ricky Mwangada Mwanake, Gretchen M. Gettel, Elizabeth Gachibu Wangari, Klaus Butterbach-Bahl and Ralf Kiese
Karlsruhe Institute of Technology, Aarhus University, Independent, Aarhus University and Independent
Downloads 49 (1,074,648)

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carbon dioxide, methane, Nitrous oxide, Source partitioning

6.

From Data to Insights: Upscaling Riverine GHG Fluxes in Germany with Machine Learning

Number of pages: 39 Posted: 07 Sep 2024
Ricky Mwangada Mwanake, Elizabeth Gachibu Wangari, Karina Winkler, Gretchen M. Gettel, Klaus Butterbach-Bahl and Ralf Kiese
Karlsruhe Institute of Technology, Independent, affiliation not provided to SSRN, Aarhus University, Aarhus University and Independent
Downloads 47 (1,097,529)
Citation 1

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Carbon dioxide, methane, nitrous oxide, streams, vegetation indices, remote sensing

7.

Increasing grassland productivity and reducing environmental N losses – multiple benefits of advanced cattle slurry separation

Number of pages: 47 Posted: 14 Oct 2025
Jincheng Han, Rainer Gasche, Benjamin Wolf, Steffen A. Schweizer, Noelia Garcia-Franco, Martin Wiesmeier, Ralf Kiese, Ulrike Ostler, Diana Andrade-Linares, Michael Schloter, Marcus Schlingmann, Heinz Rennenberg and Michael Dannenmann
Karlsruhe Institute of Technology, Karlsruhe Institute of Technology, Karlsruhe Institute of Technology, Technische Universität München (TUM), Technische Universität München (TUM) - TUM School of Life Sciences Weihenstephan, Technische Universität München (TUM), Independent, Karlsruhe Institute of Technology, German Research Center for Environmental Health - Helmholtz Center Munich, Technical University Munich, affiliation not provided to SSRN, Southwest University and Karlsruhe Institute of Technology
Downloads 46 (1,109,210)

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Grassland Nitrogen, 15N tracing, Slurry Fertilization, Slurry Separation

8.

Biomass Production of Grasslands: Spatial Distribution of Biomass Production and Feed Demand in Two Contrasting Regions of Bavaria, Germany

Number of pages: 22 Posted: 21 Jul 2025
Sylvia Helena Annuth, Thomas Schmitt, Carolin Boos, Sophie Reinermann, Lisa Hülsmann, Ralf Kiese and Thomas Koellner
University of Bayreuth, Karlsruhe Institute of Technology, affiliation not provided to SSRN, affiliation not provided to SSRN, University of Bayreuth, Independent and University of Bayreuth - Professorship of Ecological Services (PES)
Downloads 46 (1,109,210)

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Agriculture, grassland, Fodder, Biomass production, Supply and demand, Spatial Analysis

9.

Rising Global Riverine Deoxygenation Rates and GHG Emissions Driven by the Synergistic Effects of Warming and Anthropogenic Land Use Expansion

Number of pages: 38 Posted: 24 Sep 2025
Ricky Mwangada Mwanake, Elizabeth Gachibu Wangari, Ralf Kiese and Sneak Peek Administrator
Karlsruhe Institute of Technology, Independent, Independent and Independent
Downloads 40 (1,183,237)

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Carbon dioxide, Methane, Nitrous oxide, Random forest model, Water quality