| УДК |
Аннотация: The available observations upon the behavior of streams in USA and abroad have established the following facts: 1.The total discharge of large rivers depends upon climate, precipitation, and evaporation. 2. The regularity of flow of rivers and streams throughout the year depends upon the storage capacity of the watershed, which feeds the stored water to the streams during the summer through underground seepage and by springs. In winter the rivers are fed directly by precipitation, which reaches them chiefly as surface run-off. 3. The forests play an important part, especially on impermeable soils, of forest cover on the watersheds.4. Floods which are produced by exceptional meteorological conditions can not be prevented by forests, but without their mitigating influence the floods are more servere and destructive
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