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Senate Bill 5228: Senator Simmon's speech

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  • 11 uting itself throughout the valley, washing away the valley surface where the soil is light and the fall greater, and depositing the light sand constituents of the erosion where the fall is less and the valley soil sufficiently firm to resist washing. In the first case the rich soil of the valley is washed away, and in the other it is covered with a sand as dry and lifeless as that of the desert. The secondary effect of this sudden precipitation of water into the mountain streams is the loss of the water supply which, had it entered the soil by absorption, would have been held for weeks and months in reserve, furnishing needed moisture for vegetable life and gradually passing off into the natural drain way, so as to preserve the regularity of the water flow of the streams. The effect of this erosion and these alternating floods, caused by deforestation, upon the navigation of the streams having their headwaters in mountain regions is self-evident. The deposits from this erosion are not confined to the upper sections of these streams, but extend downward throughout its whole length, finally silting up the harbors. The effect of these alternating freshets and droughts upon water power for industrial purposes is equally obvious, for the value of water for motive power depends not so much on the maximum supply as upon reasonable regularity in its flow. In all the Eastern States water power is an important industrial asset. On the streams having their sources in this proposed forest reserve the power already developed represents an annual asset of $2,000,000 to $3,000,000 and operates manufacturing enterprises valued at $30,000,000. The remaining available but undeveloped 1,000,000 horsepower would represent an annual asset of $20,000,000 to $30,000,000 and would operate manufacturing plants valued at $300,000,000. But owing to the absence of lakes and glacial gravels in the Southern Appalachian region the future maintenance of these values is inseparably connected with and dependent upon the preservation of the forests about the headwaters of these streams. This fact is illustrated by recent measurements of two streams in North Carolina; one of them with 90 per cent of its drainage area still forest covered had a greater dry-season flow of water than did the other with six and one-half times the drainage area, of which area only 25 per cent was forest covered and hail only a slightly less rainfall. Until a comparatively recent period the region embraced in the Southern Appalachian Mountains, where it is expected that this reserve will be located, was but sparsely settled, and its settlement was confined almost entirely to the valleys. The advent of railroads in this section has brought about a change in these conditions. The population has greatly increased and is rapidly increasing. The valley lands have nearly all been cleared and brought into cultivation; the farmer and the lumberman have begun to encroach upon the mountain sides in search of more land and timber. It is estimated that now 24 per cent of the lands in this area have been either cleared for agricultural purposes or denuded of timber. As a result of this deforestation already the effects I have before described are beginning to be seen and seriously felt. Last summer I traveled several hundred miles, partly by private conveyance, across these mountains and through these valleys. All along the route, here and there, far up on the moun- 5333
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