Advertisement
adj oining land s
r m r egular wav
of sand fo
h e same dir
t
sands are most p
inland
In
r ming consid
capable of fo
a h
ight of
B efore such areas can be brought under wood
to fix them
r manently
the soil pe
long the sea coast
which
after drying
r idges
a series of
n ecessarily
steadily forwa
up by the sea
according to ci
is said to be about
r a long period of time
on fo
millions of ac
r og r
p
ss of t
recent times by operation s whic
h is place
in t
measures which must be taken are
utting
ixing
planting
G ro
ing a c
M aintaining pe r man
r st of these four m easures is based on the fact that
fi
r cu rr ents a r e capable of moving the sand along
al though ai
lev
l and gently
r tain h
c
ight
PR
L
If the supply i s kept up
ction as that of t
r evalent alo
r case
ithe
feet and and even more
so as to allo w trees to spring up and lay
is car
valleys
parallel to the sea shore
r d
being r
T he rate of progress varies considerably
r cumstances
fe
r es has become covered with sand
h e evil has be
r t h
a fu
sand tempora
r op of trees and bushes
h e sand
fix t
ping g
H
nc
it i s nec
I M I NARY
ORK
r oceed at a c
s which p
h e p r evailing wind
g sea shores
but
sp
cially near
r able accumula
wav
s constantly t
r i
d inland by ai
in many cases
placed behind by f
the west coast of
t a year
but as the process
an enormous area comp
h ecked o nly in compa r atively
n c
h it is useful to desc r ibe s
r supply of sand from the
r ily
ntly a crop of trees and sh
r ound
they cannot lift it above a
ssary
these shifting m as se s
rtain
but also occu
ions of sand
which
called
it is necessa
h r o
r currents
These sand hills move
r esh sand t hr own
so as to a
lo w sowing o r
which will per
r at
at a mode
r ate in
hifting
r
h ey a r e
t
reaching
r y
h old of
up sand
r ming
fo
h not
tho ug
rance it
gon
r ising
r t h e r
fu
r tly
o
r ubs
distanc
Advertisement
