Wszystkie pola: mountain conditions - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Dynamika wzrostu jodly olbrzymiej [Abies grandis Lindl.] roznych pochodzen w warunkach gorskich Beskidu Sadeckiego
The growth dynamics of various provenances of grand fir [Abies grandis Lindl.] under mountain conditions of the Beskid Sadecki
Autorzy:: Kulej, M.
Powiązania:: https://bibliotekanauki.pl/articles/45732.pdf
Data publikacji:: 2008
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: wzrost roslin
proweniencje
hodowla lasu
wysokosc drzew
dynamika wzrostu
lesnictwo
Abies grandis
jodla olbrzymia
LZD Krynica
Beskid Sadecki
drzewa lesne
Źródło:: Leśne Prace Badawcze; 2008, 69, 4; 299-307
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: The growth and biodiversity of spruce stands in variable climate conditions - Radziejowa case study
Autorzy:: Grodzki, W.
Ambrozy, S.
Gil, W.
Powiązania:: https://bibliotekanauki.pl/articles/38388.pdf
Data publikacji:: 2013
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: plant growth
biodiversity
spruce stand
climate condition
climate change
forest
radial increment
altitudinal variation
Radziejowa mountain
Opis:: In the experiment eight populations of Picea abies were chosen at 100 m intervals between 500 m and 1200 m altitude a.s.l.. In each population wood core samples were collected from 14–19 trees (126 cores total), and measured using a Corim Maxi device. At four of the eight sites (every 200 m in elevation between 500 m and 1100 m a.s.l.), the diversity of ground vegetation was evaluated, and temperature was recorded at every 100 m of altitude. The highest average radial increment of spruce occurred between the altitudes 800–1000 m a.s.l., which is probably the optimum for spruce. The larger increment indices observed at higher altitudes may signify a high growth potential of spruce. It may also suggest a recent upward shift of the optimum growth zone for this tree species. In 15 phytosociological records, the presence of 148 plant species forming plant associations: Dentario glandulosae- Fagetum typicum (sub-mountainous and mountainous form) and Abieti-Piceetum, and community Abies alba-Rubus hirtus, was documented. No relationship was found between ground vegetation species diversity (expressed by Shannon-Wiener index) and levels of stand diversity. The vegetation species diversity varied with the elevation above sea level: the highest plant diversity was found at 500 m a.s.l., and decreased with increasing altitude. The potential increase in air temperatures may result in changes to the altitudinal range of many plant species including trees, and consequently in an upward shift of the boundaries of plant zones; in this case the sub-mountainous and lower mountainous forest zone. In this region, the optimal zone for Norway spruce may be restricted to the highest elevations.
Źródło:: Folia Forestalia Polonica. Series A . Forestry; 2013, 55, 3
0071-6677
Pojawia się w:: Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Odnowienia sosny zwyczajnej Pinus sylvestris L. w Karpatach w zależności od żyzności siedliska
Regeneration of Scots pine Pinus sylvestris L. in the Carpathians depends on site fertility
Autorzy:: Ambrozy, S.
Kapsa, M.
Powiązania:: https://bibliotekanauki.pl/articles/1290778.pdf
Data publikacji:: 2019
Wydawca:: Instytut Badawczy Leśnictwa
Tematy:: lesnictwo
tereny gorskie
Karpaty
warunki siedliskowe
zyznosc siedliska
odnowienia lasu
sosna zwyczajna
Pinus sylvestris
cechy biometryczne
uszkodzenia drzew
mountain region
site conditions
biometric features
damage to trees
damaging agents
Opis:: The aim of this work was to determine the biometric features of Scots pine Pinus sylvestris L. regeneration in terms of their susceptibility to weather-inflicted damage. We compared the damage between three sites located in the Polish part of the Carpathians: Scots pine planted in (I) fertile sites of mountain broadleaved and mixed broadleaved forest, (II) poor sites of mountain coniferous forest and (III) sites of Scots pine natural refuges during the post-glacial period. In each of the three sites of pine regeneration, 11 research plots were established with 50 pine trees on each plot. For each tree, the following biometric measurements were taken: diameter at breast height, height, three-year height increment, crown length and crown width measured along the contour line. The Scots pine regeneration was found to vary in terms of their biometric features depending on the site fertility. In fertile sites, the biometric parameters of the trees increased at a faster rate compared to low-fertility sites causing an increase in their susceptibility to damage by adverse weather conditions such as snow and rime. Therefore, the silvicultural risk in fertile sites is high and thus the introduction of pine for regeneration should be avoided in fertile broadleaved and mixed broadleaved forests even if pine provenances from a mountain origin are to be planted. Furthermore, tending cuts in regeneration should be made frequently, but with moderate intensity as to avoid excessive reductions in tree density. Intensive cuts, especially in fertile sites, promote the expansion of pine crowns, which further increases the risk of damage.
Źródło:: Leśne Prace Badawcze; 2019, 80, 3
1732-9442
2082-8926
Pojawia się w:: Leśne Prace Badawcze
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "mountain conditions" wg kryterium: Wszystkie pola

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język