Unga granplantor bland vuxna tallar.

Approved regeneration at a continued high and stable level

Nyhet | Statistik - 27 October 2020

The proportion of regeneration areas that meets the requirements of the Forestry Act was 91 percent according to the Swedish Forest Agency's latest inventory. Planting is the regeneration method that gives the highest proportion of approved regeneration.

The Forestry Act requires forest owners to establish new viable forests after felling. Therefore, the Swedish Forest Agency follows up with an inventory of regrowth every year. Results from the latest inventory show that new viable forests in accordance with the Forestry Act were established on 91 percent of the felled area. An approved result requires a both certain number of main plants per hectare and that the level of gaps per hectare is under a specified level.

Svealand and Northern Norrland have the highest level of approved regeneration with 95 and 94 percent approved area respectively, followed by Götaland with 91 percent and Southern Norrland with 88 percent approved area.

Regeneration via planting and sowing have the highest proportion of approved area, 92 and 89 percent respectively. Natural regeneration has a lower proportion of approved area, 83 percent. On fellings without regeneration measures, 55 percent of the area is approved. Areas without regeneration measures, however, make up only 1 percent of the total regeneration area.

Largely unchanged methods of regeneration.

The use of the various regeneration methods has been relatively stable in recent years. Planting has shown a slight increase and now accounts for 85 percent of the regeneration area. Natural regeneration has decreased somewhat in recent years but remains at the same level as last year, with 10 percent.

The largest difference in the use of a specific regeneration method between the different parts of the country is shown by sowing, which has been used on 5 percent of the regeneration area in Norrland but only on 2 and 1 percent respectively in Svealand and Götaland.

Soil scarification is used on nearly 90 percent of regeneration areas

The use of soil scarification shows a slight but steady increase and is now used on 89 percent of the regeneration area. In Norrland, soil scarification is used on virtually all planted regeneration areas, while the proportion of soil scarification for planted areas in Svealand and Götaland is 90 and 74 percent, respectively.

Where natural regeneration has been used as a regeneration method, the proportion with soil scarification is highest in Svealand. Natural regeneration, which accounts for 10 percent of the felled area in Svealand, has a soil scarification share of 79 percent. In Southern Norrland the proportion is 67 percent and in Götaland 61 percent. In Northern Norrland, the proportion is lowest, at 41 percent.

Pine and spruce dominate among the main plants

The number of main plants per hectare remains stable. The latest results show that there are on average 2,466 main plants per hectare, of which 44 percent are pine and 38 percent spruce. The number of main pine plants has increased slightly in recent years, while they have decreased for spruce. Broadleaf main plants make up 15 percent.

The statistics are included in Sweden's official statistics.