Information and Advisory Note Number 138 Back to menu
1.1 In an unaltered state, woodland would cover much of Scotland, except the
Western and Northern Isles, mires where the ground is too waterlogged for tree
growth, and mountains and coastal margins where exposure imposes altitudinal and
latitudinal limits.
1.2 Over millennia, woodland clearance and the suppression of regeneration by
heavy grazing have greatly reduced Scotland's native tree cover.
1.3 in recent decades, plantation forestry has greatly increased the proportion
of Scotland covered, by trees.
1.4 Although most native Scottish tree species are broadleaves (Scots pine and
juniper being the only native conifers), commercial plantations are typically
composed of a few species of rapidly growing, exotic conifers. Notable among
these are Sitka spruce, lodgepole pine, Japanese larch and Norway spruce. Scots
pine is also widely planted, but non-native varieties are often used.
1.5 Non-native broadleaves, such as beech (native to southern England) and
sycamore (native to mainland Europe) have also been widely grown. Broadleaved
planting was widespread in the lowland estates of the 18th and 19th centuries.
1.6 In the 1990s, most broadleaved planting was of native species, particularly
in the Highlands. Beech and other exotic
broadleaves continued to be planted in the lowlands.
1.7 Young commercial plantations, whether of conifers or broadleaves, tend to
have low natural heritage value, due to the dense planting which prevents light
reaching the forest floor and inhibits the development of a ground-layer.
1.8 However, many older plantations have developed a more interesting ground
flora, particularly in glades or rides, and some support rare and endangered
bird species, including goshawk, Scottish crossbill, crested tit and
capercaillie. Clear-felled and early growth stages can provide habitats for
nightjar and other species.
2.1 1924 to the 1980s
2.1.1 1924
According to the first Forestry Commission survey, 5.6% of Scotland's land area
was covered by trees.
Broadleaves covered 2.3% of the country (1,830 kmē), and conifers covered 3.2%
(2,527 kmē).
2.1.2 1947
Despite heavy felling during the Second World War, the Forestry Commission
census of 1947 showed that woodland cover had increased to 6.8%.

2.1.3 1980
By 1980, the total area of Scotland covered by trees had increased to 11.8%.
This was due to the rapid expansion of plantations after the Second World War,
particularly in the Uplands on moorland and peatlands. The area of conifers
increased to cover 10.7% of Scotland (8,381 kmē).
Many broadleaved and native pinewood sites were replaced or underplanted by
conifer plantation. Broadleaved cover had declined to 1.1% of the land area (829
kmē) (Figure 2).

2.1.4 By the late 1980s, interest in the natural heritage value of woodland had
increased. The Forestry Commission's Broadleaves Policy of 1985 recognised that
broadieaved woodland should be maintained and enhanced. The new Broadleaved
Woodland Grant Scheme awarded higher rates of grant than were available for
planting conifers.
2.1.5 Tax benefits, which had driven the growth of private sector conifer
plantation in previous decades, were discontinued in 1988. In their place, a new
Woodland Grant Scheme was introduced, with enhanced grants for planting
broadleaves and native pine.
2.2 Trends from 1988 to 1997
2.2.1 1988-1991
Under the first Woodland Grant Scheme (WGS1), broadleaved planting increased
gradually and the planting of exotic conifers dropped sharply.
2.2.2 1992-1994
A revised WGS (WGS2) introduced management grants, and a 'Better Land
Supplement'. The latter encouraged planting on arable and improved agricultural
land, and therefore increased planting in the lowlands. Broadleaved planting
increased sharply and, in 1994, exceeded conifers for the first time.
2.2.3 1994-1997
Reduced funding for planting and managing small woods (WGS3) was reflected in a
slight drop in broadleaved planting. Nevertheless, in 1997 the rate of
broadleaved planting was almost double that of exotic conifers.
Changes in grants for natural regeneration led to a decrease in the area of
woodland established in this way, and a proportional increase in planting of
native woodland (Figure 3).
Between 1988 and 1997 the planting of broadleaves by Forest Enterprise (FE)
remained relatively stable. However, conifer planting decreased. By 1997,
broadleaves comprised 13% of new FE planting, compared with 6% in 1988.
Overall, 569 kmē of broadleaved woodland was planted through WGS funding and
planting on FE land between 1987 and 1997.
By 1995, broadleaves covered 2,180 km2 (2.8% of Scotland), whilst conifers,
including Scots pine, covered 10,641 km2 (13.6% of Scotland).

3.1 Trends from 1924 to 2000 were derived from the Forestry Commission's National Inventory of Woodland and Trees and previous censuses. Trends from 1988 to 2000 were derived from the Forestry Commission's WGS database and FE planting records.
Further detailed information on Natural Heritage Trends: Forest and Woodland can be found in Information & Advisory Note No. 137.
To obtain further information about any of the issues raised in this l&A Note,
please contact
Ms Jeanette Hall (Author) or Mr Ed Mackey
Environmental Audit Group
Chief Scientist's Unit
Scottish Natural Heritage
2 Anderson Place
EDINBURGH EH6 5NP
Tel; 0131-446 2457
Fax: 0131-446 2405
E-mail: jeanette.hall@snh.gov.uk