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FOREST USE
Użytkowanie lasu, fot. Archiwum Nadleśnictwa Krosno
Użytkowanie lasu, fot. Archiwum Nadleśnictwa Krosno
Użytkowanie lasu, fot. Archiwum Nadleśnictwa Krosno
Forest use means usage of its resources – timber harvesting, forest ground cover harvesting, plants harvesting in whole or partly for pharmaceutical industry, obtaining young conifers, exploitation of minerals, but also significant participation of forests in restricting global warming effect. The foresters enable the society to use forest crops in a manner ensuring its continuity and sustainability.
The quantity of wood logging is determined by so called Annual Allowable Cut (AAC) covered in each forest management plan. It is the timber quantity possible to cut off in certain forest stands on the specified forest area within 10 years, that the given forest management plan covers.
Thanks to the fact, that the cut is lower than the stand increment during the same period of time, there takes place the constant growth of "standing timber" (in Poland there is obtained about 55 % of the stand increment). It is estimated, that affluence of Polish forests currently equals 2,049 cubic billion of wood.
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SILVICULTURE
SILVICULTURE
Hodowla lasu, fot. Archiwum Nadleśnictwa Krosno
Hodowla lasu, fot. Archiwum Nadleśnictwa Krosno
Hodowla lasu, fot. Archiwum Nadleśnictwa Krosno
The basic task of silviculture is preservation of existing forests (renewal), as well creating new ones (afforestation), with respecting nature conditions and natural processes. Within its range silviculture includes such issues as: collecting and storing tree seeds seeding, tree saplings production in the tree nursery, creation and nursery, as well as protection of forest cultivations and forest stands.
The forest, if it hadn't come into existence naturally, then it would be planted by the foresters. The saplings are cultivated in tree sapling nurseries. The cultivations are taken under nursing and protective treatments. They are to create optimum conditions for trees' growth of the most desirable ones in species composition of the growing forest stand. The last component of silviculture is forest old stand logging, due to make forest renewal possible in the optimum way for the growing tree species requirements.
