Symposium on Forestry and the Public Welfare: Papers Read Before the American Philosophical Society, Autumn General Meeting November 17, 1944American philosophical society, 1945 - 90 pages |
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Page 413
... land , to carve farms out of a former dense forest . After logging , the land was stocked with many large trees that would not pay logging costs , by reason of defect or of inferior quality of wood . Besides , a heavy cover of slash lay ...
... land , to carve farms out of a former dense forest . After logging , the land was stocked with many large trees that would not pay logging costs , by reason of defect or of inferior quality of wood . Besides , a heavy cover of slash lay ...
Page 416
... land , important as that is . The area possible of cultivation in economic farming enterprises is 4 billion acres , or 2 acres per capita of the present world population . Land in man- aged forests would need to be greater by 20 to 30 ...
... land , important as that is . The area possible of cultivation in economic farming enterprises is 4 billion acres , or 2 acres per capita of the present world population . Land in man- aged forests would need to be greater by 20 to 30 ...
Page 417
... land , that is , land requiring no special conservation measures under cultivation , is 71,808,000 acres , or 6.81 per cent , out of a total of 1,054,053,000 acres of land in farms . Of this total , an additional 418,762,000 acres of ...
... land , that is , land requiring no special conservation measures under cultivation , is 71,808,000 acres , or 6.81 per cent , out of a total of 1,054,053,000 acres of land in farms . Of this total , an additional 418,762,000 acres of ...
Contents
Forests in Relation to Soil and Water | 399 |
Worldwide Needs of Woods as a Land Conservation Crop | 408 |
Americas Role in Meeting World Timber Needs | 418 |
3 other sections not shown
Common terms and phrases
agricultural American forest American Philosophical Society André François André Michaux ashes billion burning cedar cent century clearing climate cooperation corn crop cubic feet cultivation deforestation destruction developed district economic especially Europe European farm felled fence fire forest conservation forest industries forest land forest owners forest products Forest Service Forests and Parks fuel Government ground growing growth Humphrey Marshall hundred important improvement cutting increase JEREMY BELKNAP John Bartram John Evelyn labor Lebanon less logs lumber lumber industry manufacture mast measures ment Michaux mountains nature needs November 17 operation ownership paper pasture Pennsylvania Philadelphia pine plants pot ashes present problem protection public ownership pulp pulpwood raw materials region Regulation settlements settlers ship slopes soil stands stumps supply surface runoff timber timber products timberland tion tracts Travels trees United Virginia wind wood products wood pulp woodland woodlot