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1 引言加拿大国土的大部分覆盖着森林,这一森林景观的持续发展具有全球性的意义。随着社会需要、公众态度等的变化,过去认为是正确的森林管理实践,现在已变成了不能接
1 INTRODUCTION Much of Canada’s territory is covered with forests, and the sustainable development of this forest landscape is of global significance. With the changes in social needs and public attitudes, the forest management practices that used to be considered as correct have now become unmanaged