The biological drought and growth indicator network

Welcome to

We turn automatically measured stem radius changes of trees (in a micrometer resolution!) into growth patterns and drought stress indicators of forests in Switzerland and elsewhere.

Watch trees in your region growing, live! Did you know that tree stems shrink during the day and expand during the night and that trees grow mainly at night?

-> TreeNet – Daten und Analysen der ersten fünf Messjahre. Download the report (in German)

-> Visit our beech site in the Sihlwald (near Zurich) via a virtual tour. 

TreeNet News

TV-Report in RTS 1

TreeNet report – First results

TreeNet in the News

Drought 2018

Browse the latest data

Are there growth trends since 2011?

We are moving

Are trees able to grow in periods of stem shrinkage?

If you have comments or would like to join TreeNet, please contact us.