- Tytuł:
-
Wpływ zagęszczenia na wzrost i jakość hodowlaną sosny w odnowieniach naturalnych
Effect of density on growth and silvicultural value of Scots pine in natural regeneration - Autorzy:
-
Tarasiuk, S.
Kopeć, K.
Drozdowski, S. - Powiązania:
- https://bibliotekanauki.pl/articles/973324.pdf
- Data publikacji:
- 2015
- Wydawca:
- Polskie Towarzystwo Leśne
- Tematy:
-
hodowla lasu
odnowienia naturalne
naloty
sosna zwyczajna
Pinus sylvestris
leśnictwo
młodniki
wzrost roślin
zagęszczenie drzew
przyrost wysokości
jakość hodowlana
scots pine
natural regeneration
stand tending
tree height
silvicultural quality
biotic and abiotic damage - Opis:
- The paper was aimed at determination of the effect of different tree density in the naturally regenerated monotypic and even aged young Scots pine stands growing in the fresh coniferous or mixed fresh coniferous forest sites on their further development. Research was carried out in Nowa Dęba Forest District (south−eastern Poland). A total of 12 research plots (160×40 m) were established in the selected stands. Plots were divided into 4 equal square pieces (40×40 m), where different methods of tending were applied (variant A – control, variant B – thinned, leaving 16 thousand trees/ha, variant C – thinned, leaving 10 thousand trees/ha, variant D – thinned, leaving 6 thousand trees/ha). The thinning was carried out in April 2007. In subsequent years (2007−2010), selected elements of stand structure like: height, height increment, density and damage resulting from abiotic and biotic factors were determined. Tree density significantly influenced both height increment and qualitative (tree shape) characteristics of naturally regenerated young pine trees. In the course of early thinnings, the number of trees needs to be reduced approximately down to the 10−16 th. stems/ha in the first stage of growth (seedlings), and further down to about 6 th./ha in the coppice stage. Such density enhances the chance of good growth and silvicultural quality of the stand. Noteworthy, even the heavy thinning does not significantly impact the actual proportion of both biotic (e.g. ungulate browsing) and abiotic (e.g. heavy snow) damage in the young naturally regenerated Scots pine forest stands.
- Źródło:
-
Sylwan; 2015, 159, 12; 989-996
0039-7660 - Pojawia się w:
- Sylwan
- Dostawca treści:
- Biblioteka Nauki
Artykuł