A Brief History of Forestry.: In Europe, the United States and Other CountriesFernow, B. E. (Bernhard Eduard)
History
A Brief History of Forestry.: In Europe, the United States and Other Countries
Fernow, B. E. (Bernhard Eduard)
Forests and forestry -- History
It appears, then, that quite sane notions of silviculture existed,
albeit they may not have been very generally and very strictly carried
out. Especially during the 16th century, the maladministration of the
royal domain brought with it a decadence of the practice in the woods;
the area of the coppice increased by clear cutting at the expense of the
timber forest, and, by Colbert’s time, all forestry knowledge had
wellnigh become forgotten.
The forest ordinance of 1669 attempted to reform not only the
administrative abuses but to improve the method of exploitation hitherto
practised; at least it put in writing, codified as it were, the best
usage of the time. A commission of 21 was instituted to make working
plans and prescribe the practice.
The prescriptions had reference both to management and silvicultural
practice. A felling budget (_état d’assiette_) was prescribed annually
by the _grand maître_ for each _garderie_ (district), and felling areas
were also, sometimes, but not always, definitely located. Besides,
extraordinary fellings might be ordered.
The _garderies_ were divided into _triages_ (now called _cantons_),
management classes or site classes under different rotations, and the
fellings proceeded in each _triage_ in sequence.
In each felling area, as had supposedly been the practice, at least 8
seed trees per acre, and generally 16, besides those under the diameter
limit, were to be left--the method _à tire et aire_.
Intermediary fellings--thinnings--were avoided and frowned down upon,
probably because of the abuses to which they had given rise. Meanwhile
their need grew more and more, especially in those places where the
felling method did not produce satisfactory regeneration, and softwoods
impeded the development of the better kinds. To improve the chances for
valuable regeneration and to keep the softwoods down, the foresters
proposed the reduction of rotations from 100 to 50 and even 40 years,
and, as with each felling the number of reserve trees had to be left,
the forest assumed a form resembling the coppice under standards.
In the coniferous woods of the mountains (fir), which in Colbert’s time
appear almost like a new discovery to his reformers, the selection
forest with a diameter limit (e.g., 6 inch at the small end of the
21-foot log) was the method most generally in vogue, and is still to a
large extent the method in use, but somewhat better regulated and
modified, sometimes with improvement fellings added. In some parts,
especially in Lorraine, for a time, artificial regeneration and a strip
system were tried, and even a group selection with a regeneration period
of probably 25 to 30 years and an exploitable age of 100 years, was
practised in the 18th century.
Public-domain text, read in full here on John Shaqi.
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