Pamphlets on Conservation of Natural Resources, Volumen18U.S. Government Printing Office, 1909 |
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Página 252
... tion Service in July , 1948 ( available from the Service ) , will indicate clearly the distribution and severity of erosion throughout the country . In a sense it is a strategic map of a huge battleground indicating our physical strong ...
... tion Service in July , 1948 ( available from the Service ) , will indicate clearly the distribution and severity of erosion throughout the country . In a sense it is a strategic map of a huge battleground indicating our physical strong ...
Página 254
... tion , climate , marketing facilities , and prices require consideration when state and Federal agencies and private farm organizations undertake long - range planning at the national , regional , and grass - roots levels . Regulation ...
... tion , climate , marketing facilities , and prices require consideration when state and Federal agencies and private farm organizations undertake long - range planning at the national , regional , and grass - roots levels . Regulation ...
Página 258
... tion and other pressures will diminish the none - too - ample forest land . Forest fires , man - made and caused by lightning , still destroy millions of acres of forest each year . Insect pests and tree diseases cause even greater ...
... tion and other pressures will diminish the none - too - ample forest land . Forest fires , man - made and caused by lightning , still destroy millions of acres of forest each year . Insect pests and tree diseases cause even greater ...
Página 265
... tion has been greatly exaggerated . An interesting question for discussion is that of the comparative values involved when we consider the uses of wildlife in the shifting ecological balance . The fact is that the economic worth of ...
... tion has been greatly exaggerated . An interesting question for discussion is that of the comparative values involved when we consider the uses of wildlife in the shifting ecological balance . The fact is that the economic worth of ...
Página 271
... tion of the Department of the Interior . Washington , D. C. , Government Printing Office , 1949. 94 pp . 304 . 2 ) In view of the tremendous importance to our nation of preserving our natural resources , and the fact that an informed ...
... tion of the Department of the Interior . Washington , D. C. , Government Printing Office , 1949. 94 pp . 304 . 2 ) In view of the tremendous importance to our nation of preserving our natural resources , and the fact that an informed ...
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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