This video from Scotland says about itself:
From Wildlife Extra:
Scotland’s native Caledonian pine forest to be doubled in size
April 2014: One hundred thousand trees, including birch, aspen, two species of willow and alders, are to be planted … [at] Abernethy forest nature reserve in Speyside, which will almost double the total size of the woodland, and join it up with the fragmented surrounding remnants.
Abernethy hosts some of the rarest and most iconic species in the UK, with around 12 percent of the population of capercaillie, as well as Scottish crossbills, crested tits, wildcats, pine martens, black grouse, golden eagles and many rare mosses, fungi and plants including twinflower.
Managing and reducing the grazing pressure on the reserve from deer over the past quarter century has already enabled the Scots pine trees of Abernethy forest to expand by self-seeded natural regeneration, with more than 800 hectares of new pine saplings now established. However, although the main component of Caledonian pine forest is the native Scots pine, a critical element of ancient pine forests include a broader range of native shrub and broadleaved tree species – such as juniper, birch, rowan, alder and willows – and whilst recovery of the pine element at Abernethy has been successful, some of these other species remain extremely scarce of [sic; or] localised.
Over the next ten years, with the help of schoolchildren in Strathspey, volunteers from across Scotland and local contractors, the conservation charity will plant close to 100,000 trees at the reserve, including birch, aspen, two species of willow and alders. It is hoped that at least 40,000 of the planted saplings will survive grazing pressure from hares and other herbivores to reach maturity, leaving the full range of species and ensuring the forest’s continuity.
Jeremy Roberts, the Senior Site Manager at Abernethy, said: “We have conducted some of the most comprehensive surveys of regeneration in Britain, and this has shown that the recovery of broadleaves has been extremely slow and localised compared to the pine element at Abernethy. Few broadleaves remain to provide the vital seed source, and of those that do are highly immobile and restricted.
“To give the forest a helping hand we are restoring these species, with the welcome help of local schools and volunteers to assist with the planting of these under-represented broadleaved trees. As these small groups mature they will themselves provide the seed source, inoculating the forest edge and providing a locus for these species to regenerate more widely, and restoring the forest to its diverse and species-rich former glory.
“It may well be that the children and grandchildren of the school children who have been assisting with the planting will be the ones who see the difference rather than us. However, it is enormously satisfying to know that this is this generation that is creating this legacy.”