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a s far as tree
r
quired
b
ilviculture
r
alde
maple
thrive generally better in moist than in dry air
fact that
pruce appear s naturally over exten siv
high situations and near the sea shores of northern
that i s to say
hr ive s but indi
while it t
r y air
with a d
ove
extensive tracts in continental dry climates
same tim e flourishes in the moi st insular climate of
ritain and Ireland
part from the fact that trees take up m oisture through
r o r gan s above ground
thei
h
hig
st importance
the roots of the trees
h e trees
t
The degree of tr
tion of the air and the temperature
causes rapid tran spiration
air becomes satu
r ns the rapidity with which fresh water
turn
gove
with raw material s
r t from inundation or ground water
pa
water from the atmosphe
dew
rain
snow
hygroscopic nature
di
erent clim
inches a year
the air b ecomes saturated
increase in the
tion
activ
r e
tu
t
are concerned
r e t
fo
ey can be of g
It is kno wn that some
ash
and next to these
in lo calities with a compa
The
cotch pine
for the following reasons
a nspiration depend s on the d
r ated
is taken up by the roots
hail
and a certain amo unt by means of its
The quantities di
a tes and localities
Pr ecipitation cannot take place unless
r elative humidity
vaporation and a
h e one h and
I
T UR
M O
a nd further investigation i s
erently in continental situations
on t
h e atmospheric moisture is of the
t
whence it is taken up by
while the l
T he d
gree of transpiration
r e
the shape of precipitation s
from almost nothing to over
The phenomen
and thereby ind uce satura
evaporation causes a
neral practical use in
h a s spruce
pecies
suc
silver fir and beech
r atively moist air
h e other hand
gree of satura
h
nce
relatively d
a tter c
as
the soil receives
er enormously in
a which favou r an
r
duction of t
r
It is also a
areas in
urope
appears
and at the
G re a t
r y a ir
s wh
n the
in its
charged
as
r a
mpe
duction of
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