Canada’s forests cover about 34 per cent of Canada’s total land area. This immense forest cover is essential for maintaining biodiversity; it provides invaluable ecological goods and services, such as clean air, clean water, carbon sequestration, and flood control. Canada’s forests also provide habitat for two-thirds of Canada’s wildlife and contain 180 tree species native to Canada.1
Canada ranked 14th out of 17 peer countries for forest cover change over 2000 to 2005 and received a “B” grade for performance. Canada’s forest cover and wooded area has remained fairly constant over the past decade.2 Belgium and Germany also maintained their total forest cover and received “B” grades for performance.
But over half of Canada’s peer countries increased their total forest cover over the same period and received “A”s. Japan and Australia, which both saw a decrease in forest cover, received “D”s.
An increase in forest cover can happen through either afforestation or natural expansion of forests. Afforestation occurs when trees are planted on land that was not previously forested. Natural expansion of forests refers to an expansion of forest through natural succession onto previously non-forested lands, usually abandoned agricultural land.
Reduction of forest cover is caused by deforestation or natural disasters. Deforestation implies that forests are cleared by people. The land is then converted to another use, such as agriculture or infrastructure. Natural disasters may also destroy forests. When the area is incapable of regenerating naturally and no efforts are made to replant it, it reverts to other land.
Where part of a forest is cut down but replanted (reforestation), or where the forest grows back on its own within a relatively short period (natural regeneration), there is no change in forest area.
In Canada, 143 million hectares of forests are managed for timber, representing 46 per cent of Canadian forests. Only 1 million hectares of forests, however, are harvested annually for timber production. The provinces manage timber harvesting and the annual allowable cut (AAC). The AAC is revised every 5 to 10 years and has remained stable since 1992. This has allowed Canada to maintain its forest cover on managed forested land. Reforestation (that is, when a forest is cut down but replanted) and natural regeneration have also played a role in maintaining Canada’s forest cover.
Most peer countries that have ranked ahead of Canada are in Europe. Forest area and growing stock have been increasing year by year in Europe because of decreased demand for wood as a domestic fuel source and the replanting of forests.3 Afforestation, however, remains a priority in Europe, as a result of overharvesting and intensive forestry practices in the past.
Ireland, the best performer recently, achieved a near 10 per cent increase in forest cover from 2000 to 2005. Unlike Canada, Ireland witnessed centuries of forest exploitation, leaving less than 10 per cent of its land as forest cover by the end of the 20th century. In 1996, a strategic plan set an afforestation target of 25,000 hectares per year up to the year 2000, and 20,000 hectares per year from 2001 onwards.4 Although the targets are not being met, government incentives have encouraged private landowners to contribute to afforestation. In recent years, the Irish government has set a target of increasing forest cover to 17 per cent of total land mass by 2030.
Scandinavian countries introduced forestry legislation about 100 years ago limiting the amount of timber that could be harvested while imposing an obligation on woodlot owners to replant after felling. Since then, forest resources in these countries have doubled.5
For the most part, a higher proportion of forests in European countries are privately owned. In Norway, 86 per cent are privately owned; in Sweden, it’s 80 per cent; and in Denmark, 72 per cent of forests are under private ownership.6 The majority of the private ownership is in the hands of individuals and families, with only a small proportion owned by private institutions and forest industries. Private owners in these countries are required through policy and legislation to practice sustainable forest management—reforestation followed by harvesting. These practices have contributed to the increase in forest cover in these countries.
1 OECD, Environmental Performance Reviews: Canada (Paris: Author, 2004), p. 85.
2 OECD, OECD Environmental Data 2004 (Paris: Author, 2004), p. 117.
3 Faculty of Forestry and the Forest Environment, Lakehead University, Sweden—Forests and Forestry, [online, cited August 20, 2008].
4 Ireland Department of Agriculture, Food and Forestry, Growing for the Future: A Strategic Plan for the Development of the Forestry Sector in Ireland (Dublin: Author, 1996).
5 Faculty of Forestry and the Forest Environment, Lakehead University, Forest Management in Scandinavia, [online, cited August 20, 2008].
6 Andreas Schuck, "Forest Resources in Finland, Iceland, Norway, Sweden and the United Kingdom—a Background Note," Working Papers of the Finnish Forest Research Institute 38: 7–13, Proceedings of ELAV seminar, March 23-24, 2006, Koli, Finland.