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Swiss chestnut forests contain a genetic diversity that is unique in Europe, indicates a new study. Many chestnut forests consist of grafted trees.


For one month, tree-ring scientists braved the harsh conditions of Northern Siberia to find old wood. Patrick Fonti is taking us along on the trip.


Andreas Rigling's photo taken in Siberia has received a distinction in the scientific image competition of the National Science Foundation.


Researchers from the Universities of Bonn and Zurich as well as WSL studied the 100-year development of plant diversity in the canton of Zurich.


Light, landscape and people lift the spirits of SLF doctoral student Amy Macfarlane, who has to stay in the Arctic for a while longer. More on the blog.


Yann Vitasse painted the buds of saplings for an experiment on leaf emergence in spring. He explains why in the blog.


Urban gardens help with psychological restoration. A WSL study shows that allotments are more restorative on average than domestic gardens.



Even the MOSAiC expedition has felt the effects of the coronavirus pandemic. Another challenge is that the ice floe breaks into smaller pieces.


Das Swiss Polar Institute präsentiert ein neues Online-Lehrmittel: Die enthält Videos, Podcasts und Lesestoff über die Pole.


During the 2018 summer drought, beech trees dropped their fruit early. WSL researchers were now able to document this response in forest trees.


Wie kann man mit der Abgeschiedenheit umgehen? Davon berichtet unter anderem SLF-Forscher David Wagner, der monatelang auf einer Polarexpedition war.


Numerous projects in applied research and two "Forum for Knowledge": At WSL, 2019 was all about knowledge transfer.


Since 1991, the Confederation has had a "Forest Biodiversity Strategy", under which natural forest reserves are promoted. WSL is responsible for monitoring.


Did the warm winter 2019/20 harm forest trees? An experiment at the WSL investigates this question.


The ETH Board is strengthening the biodiversity research of WSL and Eawag in order to find answers to the challenges of species loss as quickly as possible.


Over 1000 pages on the botanical diversity in the canton of Zurich. Edited by WSL researchers Thomas Wohlgemuth and Michael Nobis.


Summer School FORMON (Long-term Forest Monitoring)

The Summer School FORMON for PhD, postdocs and master students will take place in Davos from 23 to 29 August. Apply by May 1st.


Climate change affects the water conditions in the atmosphere, increasing trees' water stress. WSL researchers are investigating the phenomenon.


Take a look behind the scenes of our work. What does forest protection mean in practice?

Video with subtitles in various languages.


In 2019, bark beetle damage reached 1.4 million m3 of spruce wood. This is the second highest level ever recorded apart from the year 2003.