Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains

The main task of the study was to investigate the growth conditions of silver fir natural regeneration in the Karkonosze Mts. (Poland). The paper examines the quantity and quality of light reaching the forest floor in stands of different canopies. The aim of the study was also to define the optimal...

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Main Author: D. Dobrowolska
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2008-09-01
Series:Journal of Forest Science
Subjects:
Online Access:https://jfs.agriculturejournals.cz/artkey/jfs-200809-0002_growth-and-development-of-silver-fir-abies-alba-mill-regeneration-and-restoration-of-the-species-in-the-kark.php
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author D. Dobrowolska
author_facet D. Dobrowolska
author_sort D. Dobrowolska
collection DOAJ
description The main task of the study was to investigate the growth conditions of silver fir natural regeneration in the Karkonosze Mts. (Poland). The paper examines the quantity and quality of light reaching the forest floor in stands of different canopies. The aim of the study was also to define the optimal site conditions for silver fir planting under stand canopy. Data on the natural regeneration and stand structure of each investigated stand were collected on circular plots in a grid of 15 × 15 m in 1999 and 2000. Biometric measurements of fir plants planted under various stand canopies were done three times (May 1999, autumn 2000 and 2001). It was found that the fir was not a dominant tree in all size classes from seedlings to saplings. Seedlings (both phases) of spruce, beech, sycamore and rowan occurred in all studied stands. The optimal conditions for fir development were found under larch canopy. That was demonstrated by the highest increment of height, diameter and offshoots. The worst conditions for fir growth were under beech and spruce canopy, which was indicated by the lowest diameter and height. The highest PAR was recorded under pine canopy, whereas the lowest one under beech canopy. Beech stand induced a lower R:FR ratio than the other tree species both on sunny and cloudy days. The highest R:FR ratio was found under the canopy of larch and pine stands.
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spelling doaj.art-1896bfcc52534d8da2a7a6b8de17cade2023-02-23T03:41:58ZengCzech Academy of Agricultural SciencesJournal of Forest Science1212-48341805-935X2008-09-0154939840810.17221/29/2008-JFSjfs-200809-0002Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze MountainsD. Dobrowolska0Department of Forest Ecology and Wildlife Management, Forest Research Institute, Raszyn, Sękocin Stary, PolandThe main task of the study was to investigate the growth conditions of silver fir natural regeneration in the Karkonosze Mts. (Poland). The paper examines the quantity and quality of light reaching the forest floor in stands of different canopies. The aim of the study was also to define the optimal site conditions for silver fir planting under stand canopy. Data on the natural regeneration and stand structure of each investigated stand were collected on circular plots in a grid of 15 × 15 m in 1999 and 2000. Biometric measurements of fir plants planted under various stand canopies were done three times (May 1999, autumn 2000 and 2001). It was found that the fir was not a dominant tree in all size classes from seedlings to saplings. Seedlings (both phases) of spruce, beech, sycamore and rowan occurred in all studied stands. The optimal conditions for fir development were found under larch canopy. That was demonstrated by the highest increment of height, diameter and offshoots. The worst conditions for fir growth were under beech and spruce canopy, which was indicated by the lowest diameter and height. The highest PAR was recorded under pine canopy, whereas the lowest one under beech canopy. Beech stand induced a lower R:FR ratio than the other tree species both on sunny and cloudy days. The highest R:FR ratio was found under the canopy of larch and pine stands.https://jfs.agriculturejournals.cz/artkey/jfs-200809-0002_growth-and-development-of-silver-fir-abies-alba-mill-regeneration-and-restoration-of-the-species-in-the-kark.phpnatural regenerationplantinglightbiometric measurements
spellingShingle D. Dobrowolska
Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains
Journal of Forest Science
natural regeneration
planting
light
biometric measurements
title Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains
title_full Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains
title_fullStr Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains
title_full_unstemmed Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains
title_short Growth and development of silver fir (Abies alba Mill.) regeneration and restoration of the species in the Karkonosze Mountains
title_sort growth and development of silver fir abies alba mill regeneration and restoration of the species in the karkonosze mountains
topic natural regeneration
planting
light
biometric measurements
url https://jfs.agriculturejournals.cz/artkey/jfs-200809-0002_growth-and-development-of-silver-fir-abies-alba-mill-regeneration-and-restoration-of-the-species-in-the-kark.php
work_keys_str_mv AT ddobrowolska growthanddevelopmentofsilverfirabiesalbamillregenerationandrestorationofthespeciesinthekarkonoszemountains