The ecological studies which Prof. J. F. Franklin and his colleagues were engaged, in at Andrews Experimental Forest located in Oregon, USA, and the new forestry theory proposed by them are reviewed. The theory focuses on: ① Integration of the ecological functons of a forest (including species preservation and environment protection) with wood production, in order to coordinate forestry development. ② Traditional forestry only concerns itself with the regeneration of trees,whereas new forestry emphasises bi...
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