Conservation, Bände 3-4American Forestry Association, 1937 |
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Seite 28
... basin storage would be needed . Flood - retarding or detention- basins were a new idea in this coun- try . Nowhere in the world had any- one built such huge basins , and as many basins , as were contemplated for the Miami . Storage dams ...
... basin storage would be needed . Flood - retarding or detention- basins were a new idea in this coun- try . Nowhere in the world had any- one built such huge basins , and as many basins , as were contemplated for the Miami . Storage dams ...
Seite 7
... Basin . The Tennessee Basin problem may be stated numerically - fifty- two inches of rain a year , distrib- uted over 41,000 square miles of territory that varies from mile - high mountains to low flood plains only a few hundred feet ...
... Basin . The Tennessee Basin problem may be stated numerically - fifty- two inches of rain a year , distrib- uted over 41,000 square miles of territory that varies from mile - high mountains to low flood plains only a few hundred feet ...
Seite 18
... basin in particular is well established and set out in detail from the wide experience and scientific research of the profes- sional foresters of the United States Forest Service . These re- ports have been published in re- sponse to ...
... basin in particular is well established and set out in detail from the wide experience and scientific research of the profes- sional foresters of the United States Forest Service . These re- ports have been published in re- sponse to ...
Inhalt
MarchApril 1938 Number | 2 |
CONSERVATION | 3 |
Wild Animal Farms in Russia USSR ECONOMIC SURVEY | 9 |
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acres agencies agriculture American Forestry Association animals anthocyanin basin birds breeding camp canvasback cent cities Condensed cost crops dams deer Department destruction disease drainage drainage basin drought duck Dutch elm disease economic erosion estry farm farmers Federal feet field fire fish flood control grass grazing growth heath hen hunters hunting important inches increase industry interest irrigation Lake living logging ment miles million Missouri River mountain National Park natural resources Navajo North North Dakota OVID BUTLER Peat Moss pine Plains planning plant problem production protection range Reclamation recreation region River salmon sand season servation Service shooting Soil Conservation South species sportsmen square miles streams supply Survey tain things timber tion tional trees ture United Valley waterfowl watershed West wild wild turkeys wilderness wildlife winter wood