VALUE OF LAND UNDER A CROP
OF WOOD. LAYING OUT OF GROUND FOR NEW PLANTATIONS. FENCING AND INCLOSING
OF GROUND FOR YOUNG TREES. PREPARING OF GROUND FOR YOUNG TREES DRAINING
OF GROUND FOR YOUNG TREES. LAYING OUT OF ROADS IN NEW PLANTATIONS.
SECTION 1. VALUE OF
LAND UNDER A CROP OF WOOD
The value of land, as
generally found under a crop of wood, varies according to the nature of
the land planted, and, at the same time, according as the locality may
or may not be conveniently situated as regards a ready market for the
sale of timber. A plantation of trees, of whatever species it may be
composed, is always of more value to the grower when in the
neighbourhood of a thriving sea-port, than the same plantation would be
in a far inland district. The reason of this is obvious; for in the
neighbourhood of a ready market for timber, the distance for cartage is
not necessarily much calculated upon by the purchaser, consequently he
is enabled to give a fair price to the seller. For example:—were I to
purchase good ash timber from a proprietor whose plantations were within
two miles of a shipping port, I would he enabled, upon consideration of
the short distance, to give him 2s. 3d. per cubic foot: in this case I
would calculate upon selling the same wood at 2s. 6d. per foot, allowing
the 3d. which I would receive extra, for the expenses of cartage and my
own profit. Again, were I to buy the same quality of ash timber from a
proprietor whose plantations were thirty miles from a shipping port, I
could not give in this instance more than Is. 6d. per cubic foot;
because I would have to calculate, that although I got 2s. 6d. for this
wood, it would take Is. per foot to cover my expenses of conveying the
timber to market, and at the same time to have a little profit for my
own trouble. And thus it is in all cases, that for every mile of
distance from the market, the purchaser of wood is obliged to give less
to the seller; and this because he has to meet the extra expenses
incurred in each mile of cartage, previous to getting it brought to
market.
However, I may here state, as a general rule, which I have verified from
my own experience, both in the lowlands and highlands of Scotland, that
land, under wood, will at the end of sixty years, under good management,
pay the proprietor nearly three times the sum of money that he would
have received from any other crop upon the same piece of ground.
This assertion, I am aware, will he considered extravagant by many
proprietors; but to those who may consider what I have here said as
beyond the truth, I beg to say that although it may be in reality beyond
what they have themselves experienced as to profits from their
plantations, yet I must say, that where good management has been
introduced, what I have said will be found a practical truth; and in
order to illustrate the point, I shall here give two examples, derived
from my own experience in the felling of wood upon gentlemen’s estates,
both in the highlands and lowlands of Scotland.
Upon the estate of Craigston, in Aberdeenshire, where the plantations
are, for the most, of larch, Scots, and spruce fir, I have thinned them
at all stages, from that of sixteen years old up to that of sixty, when
they were cut down as ripe; and, having taken a valuation of the trees
as taken from an acre of plantation ground, at all the different stages
when thinning was required among the different plantations between
sixteen and sixty years, I make the value of an acre of land, as found
under mixed fir-wood, in the district of country mentioned, L.190. The
annual rent of the land upon which those plantations grow was reckoned
at 10s. an acre, as compared with land of the same description held by
farmers in the neighbourhood ; and had tins land been occupied by a
farmer, the proprietor would have received only L.30 for an acre during
sixty years ; but as occupied by plantations, we see that he received by
the end of sixty years, when the crop of wood was cleared olf, no less
than L.3, 3s. for each year of the period the land was under a erop of
wood ; and upon deducting original outlay, in the form of fencing and
planting, as well as labour in keeping good the plantation and in
cutting down the trees for sale, and also compound interest upon the
original outlay and rent progressively, during the periods no return was
received, it will be found that such land occupied by wood will pay
three times the amount of money, at the end of sixty years, that it
could do under the hands of a farmer.
Again, upon the estate of Arniston, in MidLothian, where the plantations
are hard wood of general sorts, with a mixture of firs to act as nurses,
I have calculated upon the same principle as that above mentioned, and
find the medium value of an acre of land as under wood upon this estate
to be, at the end of seventy years, L.570.
The land in the same neighbourhood lets at 30s. for farm cropping. Now,
dividing this L.570 by seventy, the number of years the ground lay under
wood, we have, instead of 30s., L.7, 8s. as the rent of the same land
under a crop of wood; and even after deducting all necessary expenses,
as well as compound interest progressively, the proprietor has about
three times the income from his land as under wood, that he would
receive from the same had it been in the hands of a farmer.
These examples I consider quite sufficient for the present purpose. And
further upon the same point, I beg to say, that it is not alone the
simple value of the timber that makes plantations of so important a
nature upon a gentlemen’s property. There is the shelter that they
afford to all agricultural purposes: for where no plantations are, there
is invariably an inferior crop of grain upon the fields, as well as an
ill-fed live stock, which should all be taken into account; and in doing
so, lam of opinion that upon any landed property, well managed
plantations are incalculably of more value than land three times their
extent in the hands of a farmer, but without trees to give shelter; and
it is well known by every proprietor of land, that he receives by far
the highest rent for those parts of his lands which are most sheltered
by his best plantations; and further, of whatever value land may be in
the hands of a farmer, without plantations to give shelter to the same,
it is of very much greater value when properly sheltered by them.
SECTION II.—LAYING OUT
OF GROUND FOR NEW PLANTATIONS.
It is admitted by every
person of a refined taste, that no object is so ornamental upon a
gentleman’s estate as an extensive healthy plantation, situated upon a
well chosen spot, and having a well defined tastefully bending outline;
and this being a point of the first importance in arboricultural
architecture it ought to be well considered by all who would wish to
excel in the profession. I am aware that many think, and indeed say,
that forest trees will grow as well in an untastefully defined
plantation, as they will do in one laid out upon the first principles of
refined taste, provided that the soil be good enough,—which is a false
estimate of what good taste is capable of doing : and in order to
contradict this erroneous opinion, I do assert, that a young plantation
laid out according to scientific principles, combined with good taste,
will succeed much better than one laid out in a careless manner, as will
be shown by and by, under the present head.
As the future welfare of a plantation is considerably affected by the
manner in which it is laid out, no man ought to attempt the laying out
of ground for one, who is not naturally possessed of good taste for that
sort of landscape scenery which is based upon the laws of nature, which
will enable him to lay out the proposed plantation in such a manner as
to give the greatest possible effect in ornamenting the neighbouring
country. It is also necessary that the person who would lay out ground
for a new plantation, should be possessed of a knowledge of the nature
of the growth of each sort of tree when planted upon any given soil or
situation ; which knowledge will enable him to judge rightly as to the
effects that certain trees will have when planted in any given spot; and
he will also be enabled from such knowledge to say truly, whether or not
trees will grow well in the situation chosen for a new plantation. And
it is further necessary that the party, in the laying out of a new
plantation, should be acquainted with, or at least have in view, any
local peculiarities of the district, relative to cold and destructive
winds from certain points. From such knowledge he will be able to lay
out the proposed plantation in such a manner, that it shall have the
greatest possible effect in giving shelter to the surrounding fields,
which is the principal end a proprietor aims at in having woods upon his
estate.
The larger that any piece of plantation is, the sooner will the trees
therein come to useful size, and answer the desired end; and the smaller
it is, the more likely are the hopes of the planter to be disappointed.
And the reason of this is obvious:— for the young trees growing in an
extensive plantation, as soon as they rise a little above the surface of
the grass or heath, begin to shelter one another; whereas, if the
plantation be narrow, the young trees can hardly be said ever to come
the length of sheltering one another — for every breeze of wind blowing
through the whole breadth, acts upon every single tree almost as
powerfully as if each tree stood singly and alone. Therefore, it is most
profitable for proprietors always to plant in large masses.
Trees planted in a mass of one hundred acres extent, will be more
healthy, and come sooner to profitable size, both as affording timber
and shelter, than they would if planted in a mass of ten acres. From
this it follows, that if a proprietor wishes to plant one hundred acres
upon his estate, he will raise more healthy timber by planting in one
mass, than he would do by planting the same extent in four masses of
twenty-five acres each.
No young plantation, upon an exposed situation, should be less than one
hundred yards broad at any given point; and, where the soil is of a
light, thin, mossy nature, and not apt to raise trees to good size, one
hundred yards may even be too little for breadth. If there be much mossy
ground upon the site intended for a new plantation, or if there be much
of it consisting of poor, thin, gravelly heights, as is often the case
in unimproved districts, a narrow or small plantation will not succeed
profitably. A small plantation may succeed upon a good loamy soil in a
sheltered situation; but upon a bad soil, and an exposed situation, I
would advise not to plant at all, unless it be done in large masses.
Almost every gentleman’s estate lies in a manner peculiar to itself; the
wind that might prove hurtful to one estate, might not do so to another
marching with it: therefore it is, that the particular winds which prove
most hurtful to an estate, should always be taken into consideration in
the laying out of a plantation upon it.
I have already said above, that the welfare of a young plantation
depends in a great measure upon the manner in which it is laid out. I
also said, that a plantation laid out according to scientific rules,
combined with good taste, will succeed much better than one laid out in
a careless unscientific manner. The following are the rules by which I
generally guide myself in the laying out of a new plantation :—
First.—In laying out its boundary line, avoid all straight lines upon
the exposed sides, and, if possible, make no straight lines at all upon
any side. They are disagreeable to the eye of taste, and are without
meaning when applied to natural objects : in nature there are no
straight lines, and that for a wise end, for they are without strength
to resist outward pressure.
Second.—The greatest extent of a new plantation should be laid off
against the prevailing wind of the district, and at the same time, the
greatest extent should be kept along the highest part of the ground to
be planted.
Third.—The best possible form of boundary line which can be thrown out
against the wind, upon the most exposed side of a plantation, is the
convex. Such a form of boundary line weakens the strength of the wind
when it hits upon it: the strength of the storm is, as it were, divided,
when it hits upon the projecting bend of a well defined convex.
Fourth.—Upon the most sheltered sides of a plantation, the boundary line
may be made to bend one way or another, as good taste may direct; but in
all cases, making a concave bend only where there is a good breadth of
planting immediately behind it.
Fifth.—The highest parts in a neighbourhood ought to be chosen for the
site of a plantation. By choosing such a situation, the greatest
possible shelter is likely to be attained for the neighbouring fields;
and, at the same time, a plantation situated upon a height always forms
a prominent and a pleasing object to the proprietor. A bare height
always carries along with it the idea of barrenness, but when planted
with trees, it forms one of the most pleasing objects in the landscape
of a gentleman’s estate.
Sixth.—In the laying out of a new plantation, intended for the
protection of live stock, there ought to be several rather deep
sinuosities upon the most sheltered sides. These sinuosities ought to be
upon a bold wide scale, so as not to cause any weak point to project
from the body of the plantation; for, if this he the case, such weak
points would not thrive, and consequently always have a mean appearance.
Seventh.—If in the general arrangement of the boundary line, it should
be found necessary to make a bend having its concavity to the storm
side, care should be taken to construct such a bend in a hollow part of
the ground, or, at least, as low as possible, and it should be backed by
a good breadth of planting behind.
In the laying out of a new plantation, there is much room for the
display of good taste. Every person is pleased with the effect of well
arranged figures upon grass in a flower garden; and the several
plantations upon a gentleman’s estate ought, in like manner, to be well
laid out figures upon a large scale. Many have told me, when speaking
upon this point, that it is superfluous to lay out a piece of plantation
with as much view to taste as is necessary in garden and pleasure-ground
scenery; but I have always maintained, that taste is as necessary in the
one case as in the other, and that any proprietor has a right to
tasteful arrangements, and is pleased therewith when surveying Ins
farms, as much as with the other, when surveying his pleasure grounds.
If, in the general arrangement of a young plantation, a display of taste
were to be injurious to the welfare of the same, then I would say, let
taste have nothing to do in the matter; but the truth is quite the
reverse of this. All true taste is based upon the works of nature:
therefore, when we make the bendings and turnings of the boundary line
of a plantation in conformity with the securing natural strength to
resist the storm, we at the same time give the most pleasing effect to
the mind of the person who looks upon it.
The bendings in the outline of a plantation should always be made to
follow the natural rising and falling of the ground; that is, where any
lateral heights may project from the main body of the ground laid out
for a plantation, make the fence line take a bold convex turn in the
same direction, and that just so far as may be considered necessary for
the extent in view; and where a hollow of the ground occurs, make a
fence line take a bold concave turn there, coming up again in the form
of the convex where the ground begins to rise. In the laying out of a
new plantation, if it is at all to be seen from tlio windows of the
proprietor’s mansion, or from any part of his pleasure grounds, great
care should be taken to make it have the most pleasing effect when
viewed from such points; for if it should be badly laid off it will
prove a continual eye-sore, and if well laid off it will prove a
constant source of pleasure.
The method of laying out plantations in the form of strips, so often to
be met with in Scotland, gives a poor and mean appearance to a
gentleman’s estate, particularly when found about the home grounds. The
form in which they have generally been made is in straight lines, from
twenty to thirty yards broad. In such narrow belts of wood the trees are
very seldom found in good health; and, upon a little consideration of
the matter, this is not to be wondered at—because, from the narrowness
of such strips, the proprietors were always afraid to thin them, wishing
to keep them in a thick state, in order to give as much shelter as
possible, and the natural consequence is, from being left too thick, the
one tree soon kills the other. And even where such strips have been well
managed, it cannot be expected that they could produce either good
healthy timber or make a good shelter; for, being so narrow, the trees
never come to shelter one another. But it is a happy circumstance in the
history of arboriculture, that few such strips are now planted :
gentlemen are now beginning to see the impropriety of such a method of
raising plantations; and now, almost in all cases of good management, we
see the old-fashioned narrow strip giving place to the well defined,
extensive plantation, which is, indeed, the only profitable way of
rearing trees for any useful purpose.
SECTION III. FENCING
AND INCLOSING OF GROUND FOR YOUNG TREES.
It is absolutely
necessary that every piece of ground laid out for a plantation should be
fenced in some way or other, previous to its being planted. A fence not
only prevents the inroads of sheep and cattle, but it at the same time
tends very much to shelter the young trees, and to bring them on
rapidly. It is, indeed, surprising to observe the difference that a very
low fence makes upon the growth of young trees, as compared with those
which are not protected by one. Any proprietor, or forester, upon
looking through his several plantations, will observe that, in all young
plantations, the most rapid growing, and at the same time the most
healthy trees in it, are to be found immediately behind the outer fence;
and, upon the other hand, in all older plantations, the best grown, and
at the same time the most healthy trees, are to be found in the centre
of the same, or, at least, a considerable distance back from the fence.
Now, it may be asked, what is the reason that the best wood is found in
the inner parts of old plantations, while the most rapid growing trees
are to be found, when young, behind the boundary fence? The reason, as
proved from experience, is this:—
During the first eight or ten years of the age of any young plantation,
the boundary fence is the only shelter that the young trees have; and it
is evident, that those trees which grow immediately behind the fence
will receive most of the benefit of its shelter; consequently, from the
circumstance of their receiving more shelter than their neighbours
further off, they must grow more rapidly, until such time as their tops
begin to rise above the level of the fence, when they are considerably
checked by the cold winds. At this stage, they begin to grow thick and
bushy, rather than advance in height, and, immediately upon their
becoming so, they begin to shelter all their neighbours inside, which,
again, begin to have double the advantage of their neighbours outside;
for the trees upon the outside had shelter only so long as they were
below the level of the top of the fence, whereas those inside have now a
shelter which every year increases upon them for their advantage, in
height as well as in thickness. All this comes in to prove that a fence
is a great mean of furthering the healthy development of a young
plantation, independent of its protecting from the inroads of cattle at
the same time. I always calculate, that a plantation with a good fence
is ten years in advance of one without such protection.
Many different methods of fencing have been adopted for the inclosing of
young plantations upon gentlemen’s estates, and, no doubt, different
methods will still continue to be adopted, according to the different
sorts of materials to be had in abundance in the neighbourhood of the
plantation to be constructed.
Under the present head, it will be enough for me to enumerate the
principal sorts of fences, as in common use in Scotland; and, giving an
idea of the cost of raising these in each case, I shall leave it to the
discretion of the parties planting to judge for themselves which sort of
fence they may adopt, which, of course, must be in most cases determined
according to the kind of material most conveniently to be had.
The first is the thorn hedge, which is a fence well known throughout all
Britain. This sort of fence is very much improved by having one-third of
beech plants mixed among the thorns in planting, particularly upon high
situations with a light soil. There the thorns are apt to die early, but
when mixed with beech plants, which thrive well in a light soil, the
fence is much improved, both in health and appearance.
The hedge is a fence well adapted for all situations where a neat,
cultivated, and clothed appearance is the object, but is not to be
recommended for a soil of a mossy or sandy nature upon a high exposure.
In such a situation, and under such circumstances, it will not live
long; but upon a clay soil, or loam, it will survive well, and have a
very ornamental appearance.
The cost of planting a thorn hedge, including a ditch four feet wide by
two deep, where the ground is of a wet nature, including plants from a
nurseryman, will average about one shilling and eightpence per rood of
six yards; and where the ground is dry and does not require a ditch, the
same work may probably be got done for one shilling per rood.
Second.—The most extensively used fence, in the high inland districts of
Scotland, is the Dry-stone Dyke. From the nature of the country in those
high districts, stones are plentiful, and, of course, easily attainable,
from which circumstance it is a fence much in use for all purposes.
Stone dykes have the effect of affording considerable shelter to young
plantations as soon as they are put up for that purpose; as also giving
shelter to cattle in the adjoining fields, which, of course, is not the
case with a young hedge fence. The dry-stone dyke used to be built
entirely without the addition of any lime or mortar to bind it, and
consequently it was always apt to be broken down by cattle, or any other
strong pressure coming in contact with it; but within ten years past, a
great improvement has been effected in the building of them, by having
the top, or cope stones, all put on and bedded in lime, which keeps the
dyke altogether in a more firm and compact state than that built upon
the old principle.
The dry-stone dykes are generally built, including the cope, about five
feet high, thirty inches broad at bottom, and tapering regularly upon
each side to about twelve inches thick at top of building, which is four
feet high. They receive the addition of fully another foot in height by
having the cope and cobble placed on the top of the regularly built
part.
The price of erecting a stone dyke depends entirely upon the conveniency
of getting stones for the purpose. If stones are to be carted far for
the line of fence, the expense becomes considerable; but the stones
being laid down, it is generally got done for 2s. 6d. per rood of six
yards, including the cope and cobble well put on with lime. This is the
price generally paid in Mid-Lothian, but in many other districts, where
lime is more expensive, 3s. per rood may not be an over-estimate. The
stone dykes make a very desirable fence upon high districts, where, upon
account of their immediate height, they at once give shelter to young
trees in a new plantation, but they are certainly not to be recommended
as an ornamental fence; therefore, they should be excluded from any
gentleman’s home grounds, for in such a situation they always give a
stranger a mean idea of the place.
Third.—In many high-lying parts of Scotland, where stones are not easily
got at, and where, upon account of the nature of the soil, it would not
be advisable to plant hedges, a very neat and good fence is often put up
for the purpose of inclosing young plantations, termed the Turf Dyke. I
have seen these turf dykes answer the purpose extremely well, both in
the lowlands and highlands of Scotland. In building them, the turfs are
cut from the surface soil, upon each side of the line of fence, which
turfs are generally cut about five inches thick, or less, according as
the surface will or will not admit of that thickness. The turfs being
cut, they are built the one above the other to the desired height, which
is generally about thirty inches, and all firmly packed together.
The turf dyke is generally made about thirty inches broad at the bottom,
and tapering regularly upon each side to fourteen inches at top. The
body of the dyke is built with the turfs grass side under, but the top
turf has the grass side uppermost.
In order to prevent sheep or cattle of any description from getting over
the turf dyke into the young plantations, which they are meant to
protect, one or two bars of paling are generally put along the top,
which are nailed to stobs, driven into the dyke, so deep as to go
through the dyke into the solid ground under it. This makes a very good
fence where stone dykes are not easily attainable, from the want of
materials, and can be put up, including paling and stobs, and men’s time
putting in the same, for fourpence per yard.
Fourth.—The common wooden paling—that is, the fence consisting of wood
stobs driven into the ground at regular distances, with bars of wood,
sawn for the purpose, nailed horizontally upon them—is very much used as
a fence for all purposes, and is so well known throughout Britain as to
need no explanation from me here. However, I may say, that, owing to the
open nature of such a fence, it is not at all adapted for the protecting
of young plantations upon high grounds, and ought to be used only in
rather sheltered situations, for the subdividing of fields, and
protecting young hedges. The cost of erecting a wooden paling, with
three horizontal bars, is about sixpence per yard, including workmanship
and nails.
Fifth.—The wire fence, upon wooden posts, has often been recommended as
a substitute for other materials where those are scarce ; but I can by
no means agree with those who recommend wire fences for young
plantations, upon a high and exposed situation. The wire fence is most
admirably adapted, by its invisibility, for all purposes upon a
gentleman’s home domains; but as a fence where shelter is an object, it
is by no means to be recommended.
I am not aware that any practical planter has as yet come forward,
presuming to recommend the wire fence for his purposes upon high
grounds. The wire merchant, who has the material for sale, is the only
person who has yet ventured to recommend wire fences for all purposes;
but I here beg to state, that proprietors in general will do well to be
cautious as to how far they introduce wire fences upon high and exposed
parts of their estates. No fence is more ornamental for a gentleman’s
home grounds ; but at the same time it must be remembered that no fence
gives less shelter. The price of erecting wire fences upon wooden posts,
for the purpose of protecting from sheep and cattle, is about Is. 6d.
per yard.
The above are the kinds of fences most generally in use for the
protection of young plantations. The proprietor who plants extensively
must judge for himself how far he is with propriety to adopt one fence
in preference to another—and that, of course, must always be decided by
the nature of the soil and situation, and the convenience as regards
materials: observing in all cases to erect a fence that will combine
shelter with durability upon high and exposed situations; and where the
situation is low and naturally sheltered, the taste may more reasonably
be consulted. In all cases of fencing for the protection of young
plantations, the work should he particularly well executed; for if it be
badly done, and a part of the fence be broken down by any slight
accident, cattle may get in, and do more damage in one night than could
be well recovered in the course of some years. This I have experienced
so frequently, that I here beg to advise all proprietors to be most
strict in the executing of such a piece of work, where, in fact, the
wealth of their estates is at stake. If the fencing should be set by
contract, as is often the case, the contractor should be bound to keep
his work good for three years after it is finished; under this
engagement, he will, for his own sake, be anxious to do his work well.
SECTION IV. PREPARING
OF GROUND FOR YOUNG TREES.
Some practical foresters
have maintained that all ground, previous to its being planted with
young forest trees, ought to undergo a course of preparation by
trenching or ploughing, and by having lime or manure in some way or
other applied to the land. Such a course of preparation as cither of the
above may be very proper in some cases, but is by no means always either
necessary or profitable in the end. As I have very often been questioned
by proprietors relative to the utility of trenching, ploughing, or
manuring of land previous to its being put under a crop of young forest
trees, I shall here state very briefly my mind upon the matter.
First, then, trenching has frequently been recommended as a proper
preparation of the soil for the reception of young forest trees. The
expenses necessary to be incurred in the act of trenching ground for
forest trees is the most prominent point that occurs to the mind; and,
indeed, it is a very formidable point to get over. It is evident that,
however much good might arise to trees from the trenching of the ground
upon which they might be planted, it could not in practice be carried to
any useful or great extent. In ordinary cases, land cannot be got
trenched under eight pounds an acre; and where trees have been formerly,
and huge roots have to be taken out of the ground, even fifteen pounds
would not be too much for the trenching of an acre in such a condition.
Therefore, in general practice, it is entirely out of the question.
The trenching of ground, as a preparation for young trees, may be very
proper, and even necessary, upon a small scale—near or about a
proprietor’s policy grounds in a sheltered situation— particularly where
large trees may have been newly taken down, and where it is desirable to
have old roots taken out previous to replanting; but it is only in such
a case that trenching, in my opinion, ought to be recommended in the
cultivation of forest trees, and even then only if the subsoil he
naturally good. There is no advantage gained by trenching ground for
forest trees -which is not decidedly better attained by a well conducted
system of drainage.
Many practical foresters have argued, that all land newly cleared of a
crop of old wood should be trenched, and the old roots taken out
previous to being replanted with another crop of forest trees; and I do
confess, that at the first glance, such a proposition appears feasible.
Those who argue for this pitch of refinement in the cultivation of
forest trees, wish to cultivate them much in the same manner as we at
present cultivate corn; but such a system of forestry is, in my opinion,
altogether superfluous, and nature points out the same tiling to us if
we will but observe her manner of proceeding in this work.
In all parts of the world corn can be had good only by carefully
cultivating it—at least I am not aware that corn of any sort can be
found in a state of nature nearly so good as it is found under the hands
of the husbandman; which points out to us, from nature herself, that in
order to have corn good and in sufficient abundance to answer our wants,
we must cultivate it, and that carefully; and, accordingly, we in this
case proceed in the manner pointed out to us by nature. Upon the other
hand, I beg to ask those who contend for the trenching and taking out of
all old roots of trees from any piece of ground previous to having it
replanted with other trees, where do we find the best crop of timber
trees—in the natural forest or in the cultivated one? We have only to
compare our home plantations with the natural forests of America or
Norway, and we at once find an answer for ourselves. It is a fact well
ascertained, that the natural forests upon the continents of Europe and
America have, for ages past, produced in succession many crops of heavy
timber, and yet we know well that there was no trenching of ground
there. Let us cultivate as we will, by trenching or otherwise, we have
not yet produced trees in our home woods equal to those in a state of
nature; and the simple reason is, that in the growing of trees in our
artificial forests, we are continually aiming too much at what we term
cultivation. We are always anxious to improve upon nature. This may,
indeed, do in many things; but unless we shall follow the direct path
which nature points out to us for the growing of forest trees, we most
assuredly never will succeed.
In the natural forest we never find two successive crops of the same
species of tree upon the same soil; by attending to which principle in
nature relative to forest trees, a great part of our success in
cultivating them in our home woods depends. All that nature requires of
us, in order to produce a second crop of wood upon the same piece of
ground, is to change the crop—for this is always done when nature is
left to herself. Therefore, in conclusion, upon the head of trenching, I
have to say, that it must be, and has indeed been found to be, an
unnecessary operation. I could, from my own experience, point out many
instances where it has done more harm than good to young trees;
therefore it is that I cannot approve of it. All that is necessary, in
order to grow trees upon any soil, is to drain; and if a crop of wood
have been upon the same soil formerly, and is but newly cleared off,
change the species of tree for a crop, and success will be the ultimate
result.
Second.—The ploughing of land has been much recommended as a preparation
of the ground for young forest trees. In my opinion, where the soil is
naturally good, there is no necessity for the ploughing of it previous
to its being planted; but where the upper stratum of soil is naturally
poor and thin, with moorhond-pan under, a deep ploughing is absolutely
necessary in order to break the pan and mix a portion of the subsoil
with the upper. The fact is, that a soil of the nature of moorbond-pan
is naturally unfit for the growing of forest trees ; but where the
proprietor of such a soil, in the general arrangement of his
improvements upon his estate, may wish to plant such a piece of ground
with forest trees, the trench-plough must first be used, in order to
open up the soil and break the pan. I am not aware that ploughing is
advantageous to tlie growth of forest trees in any other case. I am
aware that fir-trees, planted and growing upon land which has been
frequently ploughed previously, seldom live long, or attain to any
considerable size free from disease, which at once points out that
nature wishes no interference of such a kind. Generally speaking, trees
for a few years grow faster upon ploughed land than upon the natural
undisturbed soil, but do not live nearly so long; therefore I again beg
to recommend that all artificial cultivation of the soil ought to be
avoided when healthy timber is an object.
Third.—Liming, and otherwise manuring of . the soil for young trees, has
beeii recommended by some, and disapproved of by others : in my opinion,
and I speak from experience, all artificial excitement of a young tree
by the application of manure is ultimately injurious to it. I have seen
small plantations grown upon the system of trenching, liming, and
otherwise manuring; and in such cases I have generally had occasion to
observe, that the trees grew rapidly for a few years at first, but, as
soon as the exciting influence of the manure had begun to fail, the
trees fell into a bad state of health, and seldom attained that
confirmed state of maturity which is the case when nature has her own
way. However, I cannot say as to what state of perfection trees might
grow were manure added to their roots at stated intervals ; nor do I
think it necessary that we should know the results of such a system of
training, because it could be of no real use to grow trees upon such an
expensive system.
SECTION V.—DRAINING OF
GROUND FOR YOUNG TREES.
There is no preparation
of the soil so advantageous to the welfare of young forest trees as that
of draining. Draining not only dries the soil from all superfluous
moisture, but it also cleanses it of many bad ingredients which might
otherwise prove injurious to the health of trees, and prevent their full
development. To the want of draining may be attributed the greater part
of cases of unhealthiness in plantations for forty years past. The
disease in the larch, which has been so prevalent in Scotland for some
years past, may be almost entirely attributed to the neglect of this
precaution, as shall be particularly explained when I come to treat upon
that subject in this treatise. I have, within these last ten years, seen
very many plantations in Scotland fast going back from the want of
draining; and having been often called upon to give my opinion relative
to the unhealthy state of such plantations, I have, in almost all cases,
found damp to be the principal cause, and therefore recommended an
efficient course of open draining as the only means by -which they could
be recovered; and wherever my plan for the recovery of the health of
such plantations has been put into operation, a recovery has been the
result, excepting in some cases where the trees were too old and stunted
to indulge any hope of their recovery. Since I came to be forester at
Arniston, I have, by draining alone, brought several young plantations
into health, which, before that operation was done, were fast going
back; and from experience I find, that if the constitution of trees
under twenty years old be not too much injured by the effects of
dampness, they will show signs of recovery the second year after the
ground is drained about them,—that is to say, as soon as the young roots
begin to draw nourishment from the dry and improved soil.
Draining is quite as necessary for the profitable rearing of young
trees, as it is found advantageous in the profitable growing of corn,
which we now see so much improved every where by that most excellent
art. Such as our corn fields were fifty years ago, such are the most of
our plantations of the present day.
Twenty years ago, it was considered a piece of superfluous work to drain
land where young trees were to be put in; therefore it is not to be
wondered at that we have at the present time so many unhealthy young
plantations. During my apprenticeship I have planted young trees in
ground where, when I made a pit for a young tree, I had to plant it
immediately, for fear of the pit filling with water; and yet the person
who had the management did not appear to think that draining was
necessary. And such was the case with foresters generally at that time.
However, the foresters of that period are not to be blamed for not
draining their ground previous to its being planted, any more than
farmers were to blame for the same neglect before they became aware of
the advantages of draining. But the case is altogether different now.
Every farmer and forester is now aware of the advantages of draining
land, whether it may be for the growing of corn or of trees ; and yet we
have often occasion to see this knowledge taken no advantage of, both
among farmers and foresters.
Any farmer who now sows his fields without first draining them, is, by
his more intelligent neighbours, considered unworthy of holding his land
; so, in like manner, the forester who would attempt planting a piece of
ground naturally wet, and not first have it thoroughly drained, would
certainly be unworthy of holding a situation as forester in any
gentleman’s establishment.
The land intended for a new plantation being all well fenced, the next
important step to be taken, in order to fit it for the reception of
young trees, is the draining it, which draining must be executed in such
a manner as to free the land from all super-flous moisture, and to keep
it in a free open healthy state. I may here remark, that all drains made
in plantations among trees, whether these may be old or young, ought to
be left open. To cover drains, where the roots of trees have access to
them, is the most effectual way of ultimately rendering them useless.
They might, indeed, answer the purpose for a very few years; but as soon
as the roots of the tree began to spread themselves firmly into the
soil, they would collect about the drains more than any other part, and
the consequence would be, that in a very short time covered drains would
be entirely choked up with the roots, and rendered useless.
It is seldom found necessary to drain every part of the ground that may
be laid out for a new plantation. There are, it is most reasonable to
suppose, many spots quite dry enough for the rearing of healthy timber
trees, in almost every district of any considerable extent—which spots
the experienced eye can at once detect by the general appearance of the
plants growing upon the surface; but for the guidance of those who may
not have had experience enough for this purpose, it may be necessary
here to lay down something like a rule, by which they may distinguish
land in want of draining from land not requiring it. Attend, then, to
the following hints:—At certain distances throughout the whole of the
intended plantation, say at twenty yards, cast pits rather more than
twelve inches deep; and if, in those pits, water should appear to gather
within ten hours after being made, the land there is unfit for the
growing of healthy trees without being drained; and where no water
appears in the pits, the land there may be reckoned dry, and may be
safely planted with forest trees without being drained.
The distance at which drains should be put on the ground, depends
entirely upon the nature of the soil to be dried: that is, if the soil
be a stiff clay, or a retentive moss, the drains may require to be laid
on as close as fifteen feet apart; and if, upon the contrary, the soil
to be dried be of an open sand or gravel, through which the water can
pass freely, thirty feet distant may not be too far separate. In all
cases where I drain for the planting of forest trees, of whatever nature
the soil may be, I never put on drains closer than fifteen feet, nor
wider than forty, if the soil require draining at all. If the soil for a
plantation of trees be drained more frequently than at fifteen feet, the
trees are very apt to be blown up by the roots when they come to be
heavy topped, particularly if the drains are not kept in a clean state ;
and if land requires draining at all for the growing of trees, it is my
opinion that forty feet should be the greatest distance, for beyond that
distance between drains, land cannot be said to be drained efficiently.
The depth and general size of the drains must in a great measure be
regulated by the nature of the soil to be dried. In a heavy clay soil, I
have found that wood drains should be at least twenty inches deep, and
upon a light friable soil, fourteen inches may be quite deep enough; and
according as the soil may be inclined to be light or heavy, any
intermediate depth between the two extremes above specified may be fixed
upon—always observing, that the more the soil is inclined to clay, the
deeper the drains should be made.
The breadth of all such drains, at the surface ot the ground, must of
course vary according to the depth required. The rule which I have laid
down for my own practice as regards this is, to make all open forest
drains one-third wider at the top than the depth intended: that is, if
the depth of a drain be fixed upon as fifteen inches, the breadth of the
opening at top will require to be twenty inches, and so on with any
other depth. The breadth of all forest drains at bottom ought to be
sufficient to allow a common spade free room to pass along for the
purpose of cleaning.
The cost of making such drains as have been above specified, must always
be regulated by the nature of the soil, and the price of labour in the
neighbourhood where the work is to be done. In Mid-Lothian, I have got
drams fourteen inches deep, and requiring to be picked in the
under-half, done for one farthing per yard; and drains twenty inches
deep, requiring extra picking, for two farthings per yard. A particular
point to attend to in the draining of moor or waste land, for the
planting of young forest trees, is the manner of laying on the drains
upon the ground; they must be laid on in that position which is found to
be the best adapted for drawing off and intercepting the superfluous
water in its natural descent. I have seen several plantations of late,
and those of considerable extent, drained in a very inefficient manner,
the drains not having been properly laid down upon the ground. To those
who may be unacquainted with the art of making open drains upon moor or
waste land, the following hints may be useful:—Upon level ground — that
is to say, upon ground not having any perceptible fall for a
considerable distance, great caution must be used, in order to produce
artificially a fall or descent for the water that may collect in drains
made upon such a level. The manner of going to "work in such a case is
as follows:—look for the lowest part of the ground, which, if it cannot
be detected by the eye, may be determined by the spirit-level, which
every drainer ought to possess; and having found the lowest part of the
ground requiring drainage, ascertain by the spirit-level how deep a main
drain can be made there, in order to have, at the same time, a proper
descent to carry off the water from it; having fixed this point, cut a
main drain along the lowest part of the ground, at least three feet
deep, and endeavour to give it as good a descent as possible. The main
drain being made, say three feet and a half deep, and five feet wide at
the top, lay off your smaller or common drains at proper distances, and
at right angles to the main drain; and in making the common drains, say
that you wish to have them twenty inches deep, make them of that depth
at the top, or the end farthest from the main drain, and proportionally
deeper, as you approach it; and when you finish the small drains into
the main one, you can have at least one foot and half of descent between
the two ends of your drains, which is quite enough for a drain of any
ordinary length. If this main drain have to receive water from a
considerable number of small ones, as will be the case if it is of any
considerable length, and if it have to receive water from drains laid
off upon each side of it, great care must be taken to make it large
enough. In many cases it may be found necessary to make a main drain
even larger than the dimensions I have specified above; but this must in
all cases be regulated according to the number of drains that may have
to be emptied into it, and much also depends upon the length of the
small drains themselves—for if these are of great length, and put in
pretty close upon the ground, they will, during a flood, pour a great
quantity of water into the main drain : but to avoid the consequences of
too much water falling into any main drain, it is a better plan not to
allow any small drain to run above one hundred yards without falling
into a main, or at least a sub-main one, which again empties itself into
a main drain.
In putting open drains upon land having a natural declivity, they should
be run nearly at right angles with the descent of the ground; but at the
same time, care must be taken to make every drain with a slight fall
downwards; for if they have not at least one foot in a hundred of
descent, they will be apt to become choked up with mud and other
vegetable matter, which is sure to accumulate, if not carried away by a
brisk run of the water in the drains. All drains made upon what is
generally termed a dead-level, soon become useless; therefore, the great
point to attend to for the keeping of drains in a clear state is, to
give them a good brisk run for the water, as it issues from the sides.
However, caution is necessary lest this should be overdone ; for if the
ground be sandy or gravelly, a rapid descent would prove dangerous by
undermining the sides of the drains: consequently, it should always be
observed, that where the soil is light and sandy, just so much descent
should be given to the drains as will carry the water briskly along, and
prevent stagnation; and where the soil is stiff, a quicker descent may
be given, if thought necessary.
All main drains should be made in the lowest parts of the ground to be
dried, and they should increase in size, according to the quantity of
water they may have to contain. All sub-main drains should be made in a
position between the main drains and the smaller ones; and as they are
intended to collect the water from the smaller drains, and convey it to
the main ones, they should be of a convenient size between the two. All
open drains in a wood ought to be examined and cleaned once in two
years; for if they are not attended to in this manner, they are apt to
choke by vegetable matter lodging in them.
SECTION VI. LAYING OUT
ROADS IN NEW PLANTATIONS
In all plantations of any
considerable extent, it is absolutely necessary to have vacant tracts
left through them unplanted, in the form of roads; and in laying these
off in a new plantation, care should be taken to see that no part of the
wood should be above one hundred and fifty yards distant from some one
of such roads. The necessity of this precaution will appear evident,
when it is taken into consideration that the trees, when grown to any
considerable size, will have all to be carried from the interior to some
one of such roads, in order to have them taken away in carts; and when
the trees become large, and require to be carried a considerable
distance, much valuable labour must be wasted before they can be laid
down cart-free by the men.
The roads in a plantation need not be made more than fifteen feet wide.
In all cases, however, they ought to be so broad as to allow two carts
to pass one another with freedom, when laden with wood.
When the roads are marked off, which of course ought to be done previous
to the ground being planted, they ought to be divided from the rest of
the ground by a drain of sixteen inches deep, running along each side of
them, throughout their whole extent, whether the ground may be wet or
not. The drains are meant not only to keep those roads in a dry, firm
state, but to give them an appearance distinct from the rest of the
plantation; and being thus drained on each side, they are not apt to be
cut or damaged, by a cart or any other wheeled carriage passing along
them; and when thus kept dry, they form a fine ornamental green ride,
for the proprietor and his friends at all times, as well as answer the
purposes of accommodation in wood operations.
If there be any particularly romantic-looking spot within the bounds of
the plantation, the road should be made to take a turn in that
direction; or if there be any particular height from which a distinct
view of the surrounding country may be had, make a road to pass by it,
with a narrow foot-path leading to such a height. In short, in making
roads through a plantation, as well as in making walks through pleasure
grounds, good taste and ornament should be kept in view; and it is as
easy to do any piece of work well, as otherwise. |