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L O
those of W eymouth pine
last thos
of silve
r nb
ald
r
ho
lowly the leaves of oak
l
aves of beech stand pe
enj oy a dense shade
greater than that found in oak o
and sandy soil s
than on loam and clay soil s
low land s than in cloudy mo unt
suitabl e
or normal
to three years
quantity
few words about each of the
will n ot be out of place here
improves the soil in the highes t deg
has a dense cro
decay slowly
r of humu s than wood s
laye
H
does not equal it
giv
s good shade and a h
timber i s o f such inferio
r economic pu r po ses
fo
canopy is compa
r ally
j ustice
gen
cover overhead up to an advanc
r th
nea
m in this
ouglas fir
t
Often capable of preservi
r iod
certain pe
r ot
which p
ct t
ITY AND FO
AL
r fi r and sp r uce
am
lime
and haz
h eir accumulation of h umus i s much
t
time for t
h en the most favourable r esults in respect of
w
quality of humus a
n and yield s a h
eech wood s
approaches beech in t
sh
ds a
r ativ
ly incompl ete
h ave too thin a leaf canopy to do
and
peaking
and
r
spect
othe
h ough t h ey may no t possess a d
because unde
h e soil j ust as well as a thick layer of leav
T V
cotch pine
l decompo se quickly
birch
and s
r hap s half
way
r birch wood s
humus decomposes more quickly
It is also more rapid in warm
a in region s
h e p r ocess may
r e produc
avy c
if undisturbed
h e r species
any o t
avy crop of leaves
r quality that it is rarely planted
h eavy c r op of le a ves
admitting too much sun
to the lo cality
are capable of preserving a dense
d age
r than silver fir
h e fertili
g t
r thei r half s h ade mosses grow
G
T
TI O
and
ust
leaves
thos
eet ch
stnut
but as beech wood s
d
ore important species
r ee
r op of leaves
how a thicker
h is respect
but the leaf
ouglas
pruc
n s
leaf canopy
h e soil for a
y of t
r ian pine
of ash
r e
mo
h e
T
cal
The most
put at two
because it
which
though it
but its
stands
and
s
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