Pamphlets on Conservation of Natural Resources, Volumen18U.S. Government Printing Office, 1909 |
Dentro del libro
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Página 233
... continuing growth of plant and animal life and for the protection of watersheds and waterways . The ultimate aim of conservation is to leave our earth as rich and productive as we found it . William Dean Howells said : " A nation is ...
... continuing growth of plant and animal life and for the protection of watersheds and waterways . The ultimate aim of conservation is to leave our earth as rich and productive as we found it . William Dean Howells said : " A nation is ...
Página 234
... continuing pursuit of progress , too often he cannot avoid changing radically the world of nature . As we clear forests , plow the prairie , plant fields , domesticate animals , do battle with insects and bacteria , build highways and ...
... continuing pursuit of progress , too often he cannot avoid changing radically the world of nature . As we clear forests , plow the prairie , plant fields , domesticate animals , do battle with insects and bacteria , build highways and ...
Página 249
TWO Agricultural Lands The basic dependence of our national economy , continuing prosperity , and indeed of our daily living upon productive soils should be so evident that no extended discussion of this should be required . Not only do ...
TWO Agricultural Lands The basic dependence of our national economy , continuing prosperity , and indeed of our daily living upon productive soils should be so evident that no extended discussion of this should be required . Not only do ...
Página 250
... continuing research does give approxi- mate measurements . It should be emphasized that the figures below are only general estimates and could be significantly affected by future con- ditions and new factors which are not currently in ...
... continuing research does give approxi- mate measurements . It should be emphasized that the figures below are only general estimates and could be significantly affected by future con- ditions and new factors which are not currently in ...
Página 267
... continuing inroads on habitat . Can we have both sets of values for long ? READING LIST Ira N. Gabrielson . Wildlife Management . New York , Macmillan , 1951. 274 pp . See chapters 1 , 4 , 11 . Guy - Harold Smith , editor . Conservation ...
... continuing inroads on habitat . Can we have both sets of values for long ? READING LIST Ira N. Gabrielson . Wildlife Management . New York , Macmillan , 1951. 274 pp . See chapters 1 , 4 , 11 . Guy - Harold Smith , editor . Conservation ...
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Términos y frases comunes
acres agencies Agriculture annual areas bill boys Bureau CAGNEY camp Chairman Civilian Conservation Corps Commission committee Congress conservation movement Construction cooperation coordination cost Council delinquency Department Douglas-fir economic enrollees existing facilities Federal Government fire Forest Fire forest land FOREST PROTECTION Forest Service forestry Gifford Pinchot Governor habitat important improvements increase industry Insect and Disease interest Interior January 26 juvenile Kalamazoo River labor legislation Maintenance Management and administration ment miles million acres mineral national forests national-forest natural resources organization parks percent plans planting population present President problems production proposed recommendations recreation Reforestation regional resource development Resource Management Resources and Conservation responsibility river roads and trails Senator CLARK Senator Humphrey SENATOR MURRAY Senator RANDOLPH Silviculture statement streams surveys Theodore Roosevelt Timber purchasers tion U.S. Senate United utilization Washington watershed welfare wildlife young Youth Conservation Corps