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Overview

In the Thünen topic “Soils”, we have three main fields of research:

  • We analyze the state of soils throughout Germany. Currently we are preparing repeat inventories for agricultural and forest soils. We are also setting up a monitoring system for peatland soil.
  • We are developing concepts for improved soil protection. Our main focus is on preventing soil compaction.
  • We are investigating how soil functions can be preserved and improved. Here, our main focus is on carbon storage (humus), the reduction of nutrient pollution, and soil fertility.

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BZE Agriculture Profile Viewer
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Monitoring: National Soil Surveys in Forests and Agricultural Land

Soils provide plants with nutrients and water, they are a habitat for a variety of organisms and affect our climate. Only those who know the condition of their soils can use them sustainably and protect their diverse functions. The status of soils in ...

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Ein Hubschrauber fliegt über ein Waldgebiet und verstreut Kalk.
Against acid soil: What forest liming does

Since the early 1980s, more than 3.2 million hectares of forest have been limed in Germany. This was intended to counteract further area-wide soil acidification and loss of soil quality. As the findings of the second forest soil condition survey ...

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Zwei Hände sind zusammengelegt und halten wie in einer Schale mehrere Regenwürmer mit ein bisschen Erde
Soil organisms: The universe under our feet

What role do soil organisms play in healthy, fertile soils? What measures promote these organisms and how can farmers make use of them? This is what we are researching at the Thünen Institute.

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Fusariose an Weizen
Soil animals decimate harmful fungi and toxins

The aim of our research is to understand and analyse ecologically significant processes that soil animals control through their activity in laboratory and field experiments. With the knowledge gained, we can evaluate the services of soil animals for ...

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Computeranimierte Darstellung
Exploring the soil metagenome

We want to understand how microbial diversity and ecosystem functions are linked and change through agriculture. That is why we are studying the genetic material (DNA) of the soil, the so-called metagenome.

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Monitoring
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Ein Bild von einem Getreidefeld überlagert von einer Grafik, die andeutet was alles im Boden sein kann: u.a. Kleidung, Reifen, Plastikflaschen, Müllbeutel
Plastic in soil

To what extent is plastic in soil? And how does it act there? Because little research has been done on the topic in the past, these questions remain largely unanswered.

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Ein Symbolbild, die Erde liegt in einer schwarzen Plastiktüte
Plastic in the environment – a research topic at the Thünen Institute

At the Thünen Institute, research is being conducted at several specialised institutes on the topic of "Plastics in the Environment". This involves the analysis of microplastics in soils, transport processes from soils via rivers into the sea and ...

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BZE Agriculture Profile Viewer
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Three different floor profiles next to each other.
Thematic focus soil

Germany's soils are under pressure: they are burdened by drought and high nitrogen inputs, increasing compaction, and the loss of humus. The condition of Germany's soils is regularly analysed at the Thünen Institute. Our current thematic focus ...

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Vogelperspektive: Mehrer Personen nehmen an vier Stellen auf einem Feld Proben aus Löchern im Boden.
The soil is thirsty

The Thünen Institute not only monitors the development of forests and oceans over long periods of time, but also of agricultural and forest soils. The third National Soil Inventory (BZE) is currently underway on behalf of the Federal Ministry of ...

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A field being worked with a tractor and agricultural equipment. Trees can be seen in the background, the sky is blue with a few clouds.
Protecting soils through sustainable management

Soils are the foundation of agriculture and forestry - and at the same time their most important factor of production. In ecosystems, soils serve as important filters and storages for water and nutrients. Farmers have a responsibility to preserve the ...

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Tractor working the soil with a disc harrow, creating a huge yellow cloud of dust.
Erosion protection – so that the soil remains fertile

Heavy rainfall or wind can erode fertile soils - with consequences for farming and surrounding water bodies. However, farmers can take countermeasures. For example, by keeping the soil covered as much as possible and by diverse land use patterns ...

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Die Teams der Bodenzustandserhebung Landwirtschaft entnehmen deutschlandweit alle acht Kilometer Bodenproben von Äckern und Weiden.
Humus makes the soil strong

Humus is a true all-rounder: it stores water and nutrients, protects against erosion, promotes soil life—and is even good for the climate. The soil condition survey shows the state of Germany's humus reserves and which approaches to humus formation ...

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