Thünen: Surveys & data & evaluations

Institute of

WO Forest Ecosystems

Surveys / Data / Evaluations

Measurement the throughfall on the forest floor in a pure scots pine stand.

At the Britz intensive monitoring site, we collect data on deep percolation, biodiversity and phenology, and measure stem flow, stand precipitation and climate. All the data collected provides us with information about the diverse interactions in our forest ecosystems.

You can find information on the Britz intensive monitoring area in our app (only in german).

Thünen Institute of Forest Ecology / App Intensive Monitoring Area Britz

Further information and data are available on request.

Surveys / Data / Evaluations

Bioacoustics

We carry out bioacoustic recordings for birds at the Britz intensive monitoring site. These serve to identify and quantify the bird species present in a defined area.

Drones

Drones allow us a unique view of the trial area from above. We use them to assess changes in the canopy.

Phenology

The periodically recurring developments of the trees over the course of the year, e.g. leaf emergence, leaf discolouration and leaf fall, are recorded in the phenology.

Leaf area index

The leaf area index measures the area of leaves and needles per unit of ground area. For deciduous trees, it can be estimated, for example, by analysing the litterfall or by taking special photographs.

Image of a beech tree from below photographed with a dendrometer

Growth

The growth of trees directly reflects the performance of entire forest stands. Forest growth depends on various biotic and abiotic influencing factor.

Deep seepage

Deep infiltration is an important component in the water cycle. It refers to the water that leaves the soil area accessible to plants and after some time joins the groundwater.

Continuously measuring meteorologically station for logging the weather parameters in a pine-beech mixed stand

Forest stand climate

There is a special, cooler climate in the forest. This so-called forest interior or forest stand climate not only humidity and large storms, but also temperature extremes such as excessive cold and heat.

Meteorological measuring field on the Britz intensive monitoring area

(Open land-) climate

Compared to the forest interior climate, the open land climate is characterized by more uneven temperatures, lower relative humidity, higher light intensity, higher wind speeds and higher precipitation.

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Institute of

WO Forest Ecosystems

Surveys / Data / Evaluations

Surveys / Data / Evaluations

Bioacoustics

Drones

Phenology

Leaf area index

Growth

Deep seepage

Forest stand climate

(Open land-) climate

Johann Heinrich von Thünen Institute

Federal Research Institute for Rural Areas, Forestry and Fisheries