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A functional measurement network for Germany's moorland areas is now in place. A total of 155 measuring points have been set up in open land and forests. Today, Thünen researchers are submitting their report on the development phase to the Federal Ministry of Agriculture, Food and Regional Identity.

Drill core from the core drill on the sampling table and documentation in the log.

Federal Minister Alois Rainer visited a demonstration farm belonging to the HumusKlimaNetz in Groß Machnow near Berlin today. Thünen President Prof. Dr Birgit Kleinschmit was also on site. During a field inspection, they saw how humus benefits the soil.

Five persons in a soil pit. One person explains something. In the background are plants.

Hannah Götze et al.: Assessment of Different Methods to Determine NH₃ Emissions from Small Field Plots After Fertilization

The photo shows the measurement setup on a grain field.

Neha Begill, Christopher Poeplau et al.: Different Amounts of Added Litter Do Not Affect Long-Term Carbon Mineralization and Stabilization in Topsoils and Subsoils

Julia Schoof et al.: Impact of different soil erosion levels on gross N transformation processes and gaseous N losses: An incubation study

Laura Sofie Harbo et al.: Towards a quantitative estimate of anthropogenic subsoil compaction in European croplands based on national soil surveys

A figure that shows the estimated change in subsoil bulk density for each annual cropland site and the median estimated change in subsoil bulk density for each region.

Laura E. Skadell, Florian Schneider et al.: Long-term management effects on depth gradients of ¹³C, ¹⁵N and C/N ratio in agricultural soils

The final report for the joint project "Denitrification in Agricultural Soils: Integrated Control and Modeling at Various Scales" (DFG FOR 2337, www.dasim.de) was published in March 2025 in the form of a special volume in the journal Biology and Fertility of Soils .

The meso-plot experiment, with 2 m² undisturbed soil columns from the DASIM fields sites in Rotthalmünster and Fuhrberg during installation.

Many potting soils contain peat. Its degradation releases large amounts of greenhouse gases. That is why the government intends to counteract this with the federal peat reduction strategy. Researchers from the Thünen Institute have now investigated options for phasing out peat in hobby horticulture.

Julia Schoof, Roland Fuß et al.: Regionalized ammonia emission abatement by urease inhibitor treatment of urea for agro-environmental conditions of Western Central Europe