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The Natural Durability of Timber schaft Vol 12 No 1012
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acres afforestation Africa agricultural annual Association British British Columbia Burma Canada cent climate Colonial conifers considerable coppice Corsican pine cost cover crop cubic feet cultivation Douglas fir dunes economic Empire Forestry Conference erosion estimated Eucalyptus experience exploitation export felling Fifth Empire fire forest area Forest Department forest officers forest policy Forest Products forest reserves Forest Service Forestry Commission Government grazing growth hardwood important inches increased India industry interest land logs maps ment methods mill natural regeneration Nigeria Northern Rhodesia Norway spruce nursery operations paper period pine plantations planting plots plywood possible practical present problem protection province pulp region sawmill Scots pine seed seedlings silvicultural softwood soil conservation South species spruce square miles staff stands supply survey teak thinning timber tion trees tropical Uganda utilization vegetation volume wood woodland yield Zealand