The Anderson intelligencer. [volume] (Anderson Court House, S.C.) 1860-1914, 1906-07-18

summer, and since they part with [
their heat siowly, they do not become
very cold in winter.
This fact exerts o greater influence
on the depth to which the frost o1-
tends downward into the soil. II the |
snow, which is q non.conductor of |
heat, falls before the frost penetrates
the ground TO any great extent, it will |
act as covering to prevent the earth
from losing heat. The frost will,
therefore be prevented from entering
very deep into the ground. In the
early spring, when the thaws come,
the water derived from the melting OF
the snow can then soak quietly into
the ground and fills the resivoirs CT
the springs.
If, however, the forests are re-
moved the ground easily loses it's heat
and freezes before tho first snow falls.
The snow then shuts out the heat, and
the ground remains frozen long after
the snow is melted. The water from
the melting snow then drains rapidly
off and often GAUGES foods.
Forests exert marked influence on
the climate Of country especially at
the time Of the year when the crops
are to suffer injury from late and ear.
ly frosts.
Tyndall has shown that the power
of the air to absorb heat both from tho
sun AID from the earth depends upon
the amount Of water vapor present in
the air. Over forest area, the air is
moistsr, and consequently, better able
to absorb the hest. The difference of
| even fraction Of degree often deter
minesthe occurrence or non.occurrenoe
of frost. The destruction Of q forest
therefore may be the cause OF late
| frost in On agricultural or fruit grow
ing section which may destroy mil
lions Of dollars worth OK property in q
eingle night. In the same manner,
also the forests prevent the occurrence
OF early srosts in sutumn.
Generally, the sir OF the forest is
cooler and damper in summer than
that Of the open fields 10 The same dis.
| triet, because the cir OF the forssts Ia
| shielded from the direct rays OF the
sun and because it is chilled by evspor-
etion fsom the moister ground.
A greater frequency Of hail storms
is another phenomeps accompanying
the destruction Of the forests. The
exact causes Of hail are not definitely
known, but on5 off the conditions n66os-
sary for it's occurrence appears to be
the rapid mixture Of very warm aud
very cold moist air. As has already
been shown, tbs forests medL'7 or
normalise the temperature, and hence
tend to prevent such extreme changes,
while over bare regions such changes
arc exactly what We would expect. 'Tis
said that over the Saraha desert the
temperature often falls 80 degrees or
more in one night. It has been actu-
ally observed in parts Of the world
from which the forests have been re-
mo7sa tbs. he asGshe.> es he;!ato.ms
has undoubtedly increased. The de-
struotive ohafaoter Of hail storms 10
known to every one. a single hail
storm in France caused loss,to the
agricultural districts amounting TO ono
million pouudd5. - ."..''-'' .1't !.
Again the forest serve as protee.
tion against the wind. tits generally
recognised n the western part Of the
United States that when trees ARE
planted in tho plots on the side Of or
around farm farm !:ss=3ass :ss=3ass, ttAe protection thna
afforded the rest OF the land against
the winds is greater in actual money
value than the rent OF the lands oocu.
pied by such forests. They exert 8
sheltering influence by keeping the
land to; the leeward warmer than that
toward the windward IN the time of
fro1ts. They thua screen NOT only
the land Immediately on the. lssward
side, but etrtendE this protecting In.
auenoee. Ia g. much greater distance
than might, be : expected beyond che
immediate neighborhood Of tho forest.
The Winds Of countries bordering
on deserts 10 often ladened with sand
Whenever suoh q land 10 covered BY
extensive forests on tho afndsw5ai,1rtda & siaas,
the greater part ,Sof; the sand is deposi.
ted on the edge Of the forest. I When,
however, the forests on sueh asl area
are destroyed, the sands sweep evar
- - Sttl' ;