Biological Productivity of Renewable Resources Used as Industrial Materials (1976) / Chapter Skim
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SUMMARY OF PART I
SUMMARY OF PART I
Pages 63-70
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From page 63... ...
Our general conclusion, therefore, is that the biological productivity of the commercial forest lands of the United States is such that, where economic and social conditions permit, the net realizable growth of these forests could be doubled within half a century by the widespread application of proven silvicultural practices. Following our own lines of evidence and reasoning, we confirm the findings of others who have reached similar conclusions.
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From page 64... ...
Although considerable specific information exists on the biological and technical aspects of the various approaches to timber production under intensive management, substantial research is needed to predict the impact of such programs on site improvement, forest type conversion, reforestation, genetic improvement, weedings and thinnings of the area that can and should be involved, the results that can be expected, and the predicted cost-benefit relations. Large gains can also be expected from improved techniques for protecting forests from insects and diseases.
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From page 65... ...
Still another area requiring research is the socioeconomic aspect of forestry. We have speculated at length about the motives of small woodland owners and the environmentally oriented groups toward intensive forestry; yet we know far too little about the impacts of these groups on future timber growing and on wood supplies.
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From page 66... ...
Relations between western white pine site index and tree height of several associated species. United States Department of Agriculture, Forest Service, Research Paper INT-22.
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From page 67... ...
United States Department of Agriculture, Forest Service Research Paper PHW-152.
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From page 68... ...
Biological potential for and biological constraints on timber yield. United States Department of Agriculture, Forest Service, draft ms.
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From page 69... ...
Stratification of forest land for timber management planning on the western National Forests. United States Department of Agriculture, Forest Service Research Paper INT-108.
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