Year (Three-year average) is given as the middle year for example 2001-2003=2002. Starting from 2008 season of inventory is based on the felling season 1/7 -30/6, that could be seen in the notation.

Percentage of approved regeneration area at the last inventory, by region:

• Northern Norrland 87%
• Southern Norrland 80%
• Svealand 74%
• Götaland 80%

All parts of the country have had a positive development since the turn of the millennium until a couple of years ago when the approved area decreased in all parts of the country.

Year (Three-year average) is given as the middle year for example 2001-2003=2002. Starting from 2008 season of inventory is based on the felling season 1/7 -30/6, that could be seen in the notation.

Planting had an approved area of 82 percent at the last inventory. 78 percent of the seeded area was approved, and 64 percent of the naturally regenerated area was approved. Regeneration without any regeneration measure was the worst with 44 percent approved area. However, this area stands for only 2% of the total regeneration area.

Starting with 1999, the figures shown are 3-year average and the category No measures is listed separately in inventory results. For inventories prior to 1999 No measures is included in Natural regeneration. Before 2007 the category Seeded is published together with Planting.

Method of regeneration

Planting is the most common regeneration method and used in the most recent inventory of 87 percent of the harvested area. Planting has increased since the beginning of the 2000s, when about 60 percent of the area was regenerated by planting.

In the past, regeneration with natural regeneration was more common than it is today. About a third of the harvested area was regenerated with natural regeneration in the early 2000s, compared with 7 percent in the last inventory.

Seeded regeneration was almost negligible in the early 2000s but increased in the early 2010s to a maximum of 5 percent in the 2012/13 survey. In the most recent inventory, the proportion of regeneration with sowing was 3 percent.

On about 2 percent of the regeneration harvested area, no regeneration measures are conducted at all. This is a slight decrease since the beginning of the 2000s, when the share was 3-4 percent of the harvested area.

Year (Three-year average) is given as the middle year for example 2001-2003=2002. Starting from 2008 season of inventory is based on the felling season 1/7 -30/6, which could be seen in the notation.

Year (Three-year average) is given as the middle year for example 2001-2003=2002. Southern Norrland is including the county Dalarna and the municipality Torsby in county Värmland. Starting from 2008 season of inventory is based on the felling season 1/7 -30/6, which could be seen in the notation.

Soil scarification

The proportion of scarified regeneration area in the country shows a weak, but steady, increase and is now up to 89 percent.

The proportion of scarified planted regeneration area remains at last year's level across the country, with soil scarification accounting for 92 percent of planted regeneration area. In Norrland, virtually all regeneration area that is planted is scarified, while in Svealand and Götaland the proportion is 93 and 75 percent, respectively.

Soil scarification on naturally regenerated land has decreased and was 53 percent according to the latest inventory. In Northern Norrland, soil scarification decreased to 52 percent and in Southern Norrland it decreased to 57 percent. In Götaland and Svealand, the proportion has fallen to 53 percent in both parts of the country.

Main Plants

The latest results show that there are an average of 2,352 main plants per hectare in the country. In the earlier survey, there were 2,371 main plants per hectare.

The majority of the main plants consist of pine and spruce. Pine has increased slightly in recent years, while spruce has decreased. Pine dominates in Northern Norrland and Southern Norrland. In Sveland, there are about the same number of main spruce and pine seedlings, while spruce dominates in Götaland. In recent years, however, the proportion of pine has increased slightly in Svealand and Götaland.

Birch, which is mainly self-regenerated, is often abundant in regeneration. However, in regrowth monitoring, conifers are always prioritised over deciduous trees as main seedlings, which explains why the number of deciduous trees is relatively low among the main seedlings.

Birch is the most common deciduous tree species, accounting for about 14 percent of the main plants. Lodgepole pine, larch, valuable broadleaf, and other deciduous trees are still of small abundance and there are no clear tendencies that main seedlings of any of these tree species groups are increasing.

Figure 9. Sweden map