When do trees grow (2)?
Tree species have their specific climatic niches in which they grow. Norway spruce at the subalpine site Seehornwald Davos grows best at temperatures around 12°C whereas Scotts pine shows optimal…
When do trees grow (1)?
Radial stem growth of trees is limited to a relatively short time period of the year in spring and summer. The timing of the growth period depends on site and…
Radial stem variations in PCE
Radial stem variations – a source of tree physiological information not fully exploited yet by Roman Zweifel (Plant, Cell and Environment, 2015, doi: 10.1111/pce.12613) Link to the Journal pdf of…
Hitzewelle in der Schweiz
Trotz grosser Hitze zeigen die Schweizer Wälder noch keinen generellen Trockenstress. Die Bandbreite des biologischen Trockenstressindikators TWD (‘tree water deficit’) ist allerdings sehr gross und variiert stark mit Standort und…
TreeNet in Swiss Newspapers
Tierwelt, 4. Juni 2015: Forscher schauen 300 Bäumen beim Wachsen zu (Martina Huber) Südostschweiz, 22. Juni 2015: Dem Wachstum auf der Spur (Martina Huber)
Eleven new TreeNet sites in Switzerland
In collaboration with the research unit Forest Soils and Biogeochemistry of WSL Birmensdorf, TreeNet greatly increases the number of its Swiss sites. The joint sites link the soil research activities…
Publication in BioGeoSciences
Zielis S, Etzold S, Zweifel R, Eugster W, Haeni M, Buchmann N. 2014. NEP of a Swiss subalpine forest is significantly driven not only by current but also by previous…
Publication in New Phytologist
Zweifel R., Eugster W., Etzold S., Dobbertin M., Buchmann N. and Häsler R. 2010. Link between continuous stem radius changes and net ecosystem productivity of a subalpine Norway spruce forest…