Deadwood
Deadwood refers to dead trees or tree parts that are standing or lying. Deadwood is a very important component of the forest ecosystem because it promotes biodiversity. In addition, deadwood can protect against rockfalls or serve as a seed bed for tree seed.
good
positive
- Database
- National forest inventory
The volume of deadwood has increased over the last decade to 32 cubic meters per hectare across Switzerland. Thus, this forestry policy goal has been achieved in most regions, justifiying an assessment of the state as positive. However, in the Central Plateau, there is less than 20 cubic meters of deadwood per hectare in some regions.
For international comparisons, the corresponding threshold values for forest surveys must be taken into consideration. Based on the data from the State of Europe’s Forests, Switzerland is one of the countries that is rich in deadwood (volume per hectare of forest).
The data on deadwood are provided by aerial images, the continuous sample survey carried out in forests and subsequent modelling. All dead trees and shrubs (standing and lying) with a diameter at breast height (DBH) of 12 cm and more are considered. Reference area: accessible forest without scrub forest. Network: 1.4 km network (in NFI5: 1.4 km network, sub-networks 1-5).
| Targeted trend | Initial value | Final value | Variation in % | Observed trend | Assessment |
|---|---|---|---|---|---|
| Growth | 1993/95 (IFN2) | 2018/22 (LFI5) | 523.53% | Growth | positive |
| Basis: Volume by producing region Ø Switzerland | |||||
Further information
