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Articles by Ralf Kiese
Elevated CO 2 and warming intensify plant reliance on soil nitrogen reserves despite intensive fertilization
Abstract Understanding how ecosystems sustain plant nitrogen (N) supply under climate change is critical, yet whether increasing plant N demand is met by external inputs or mobilization of soil N reserves remains unresolved. Here we show that climate change increases plant reliance on soil N reserves despite intensive fertilization.
Rising Global Riverine Deoxygenation Rates and GHG Emissions Driven by the Synergistic Effects of Warming and Anthropogenic Land Use Expansion
1 Introduction Rising greenhouse gas (GHG) emissions and deoxygenation in streams and rivers have emerged as critical environmental concerns, driving global climate change and threatening freshwater habitats (Lauerwald et al. 2023; Zhi et al. 2023). Fluvial ecosystems are substantial contributors to global GHG budgets, emitting ~5 Pg (3.5–8.0) of CO2-equivalent emissions annually (Lauerwald et al. 2023).
Soil nitrous oxide and methane emissions in contrasting land use of the West African Sudanian savanna - Scientific Reports
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Abstract Changes in land use and land management can have significant effects on the global emissions budget, influencing the climate through biogeochemical processes. However, their impacts on major soil greenhouse gas (GHG) emissions in West Africa remain poorly documented and understood. This study provides the assessment of soil GHG emissions in the Sudanian savanna region of West Africa using a chamber-based experimental setup.
By Francis E. Oussou, Ralf Kiese, Souleymane Diam SY, Jan Bliefernicht, Samuel Guug, Emmanuel Quansah, Patrick Davies, Windmanagda Sawadogo, Christiana F. Olusegun, Leonard K. Amekudzi, Kehinde O. Ogunjobi, Harald Kunstmann, Ines Spangenberg, Anja Schäfler-Schmid, Rainer Steinbrecher, Frank Neidl, Michael Ayamba, Luitpold Hingerl, Alex Frempong, Ricky. M. Mwanake, Nicaise Yalo, Yinusa A. Asiwaju-Bello, Moussa Boukari
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Nature
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Advancing sustainable agricultural transformation through the synergy of automated experimental platforms and living labs - Nature Communications
Transforming agricultural landscapes to be more sustainable and resilient requires integrated and multidisciplinary approaches. Linking automated experimental platforms with living labs can accelerate knowledge gain, enhance interdisciplinary collaboration, and support real-world change by addressing key challenges in current agricultural systems.
Fifteen Years of Integrated Terrestrial Environmental Observatories (TERENO) in Germany: Functions, Services, and Lessons Learned
1 Introduction Global environmental change and it's continued acceleration has dramatic impact on all natural systems and human societies. Recent data show that 2023 was the hottest year on record (Copernicus, 2023). The resultant challenges for science to address are immense, which includes the need for improved understandings, predictions, and adaptation solutions.
A redistribution of nitrogen fertiliser across global croplands can help achieve food security within environmental boundaries - Communications Earth & Environment
Abstract A major societal challenge is to produce sufficient food for a growing global population while simultaneously reducing agricultural nitrogen pollution to within safe environmental boundaries. Here we use spatially-resolved, process-based simulations of cereal cropping systems (at 0.5° resolution) to show how redistribution of nitrogen fertiliser usage could meet this challenge on a global scale.
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