Health status of forest stands on permanent research plots in the Krkonoše Mts.
Damage to beech, mixed (beech with spruce to spruce with beech) and spruce stands in the Krkonoše Mts. is described on the basis of evaluation of transition matrices describing the probability of a change in the assessment of defoliation of particular trees in defoliation classes. The condition and...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2010-11-01
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| Series: | Journal of Forest Science |
| Subjects: | |
| Online Access: | https://jfs.agriculturejournals.cz/artkey/jfs-201011-0006_health-status-of-forest-stands-on-permanent-research-plots-in-the-krkonose-mts.php |
| _version_ | 1797898882417426432 |
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| author | S. Vacek K. Matějka |
| author_facet | S. Vacek K. Matějka |
| author_sort | S. Vacek |
| collection | DOAJ |
| description | Damage to beech, mixed (beech with spruce to spruce with beech) and spruce stands in the Krkonoše Mts. is described on the basis of evaluation of transition matrices describing the probability of a change in the assessment of defoliation of particular trees in defoliation classes. The condition and development of health status were evaluated in the long run on PRP 1-32 in the Krkonoše Mts. by foliage and degrees of defoliation. Features describing the health status of the tree crown (damage by snow, frost, wood-decaying fungi, and insects) were also evaluated. Average defoliation, standard deviation of defoliation, estimation of minimum defoliation, and frequency of the tree number in defoliation classes were calculated for each plot, and each year. Three characteristic periods were distinguished according to different trend of foliage dynamics: period of the first symptoms of damage (1976-1980) - a decrease in foliage on average max. by 1% per year, period of great damage (1981-1988) - annual defoliation on average around 3-16%, period of damage abatement (1989-2009) - annual defoliation on average between 0% and 4%. The incomparably higher resistance of autochthonous stands to air pollution stress culminating in the eighties of the last century was demonstrated unambiguously. |
| first_indexed | 2024-04-10T08:20:09Z |
| format | Article |
| id | doaj.art-fae4ab7385004a8983148034c471e07b |
| institution | Directory Open Access Journal |
| issn | 1212-4834 1805-935X |
| language | English |
| last_indexed | 2024-04-10T08:20:09Z |
| publishDate | 2010-11-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Journal of Forest Science |
| spelling | doaj.art-fae4ab7385004a8983148034c471e07b2023-02-23T03:42:10ZengCzech Academy of Agricultural SciencesJournal of Forest Science1212-48341805-935X2010-11-01561155556910.17221/128/2010-JFSjfs-201011-0006Health status of forest stands on permanent research plots in the Krkonoše Mts.S. Vacek0K. Matějka1Faculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, Prague, Czech RepublicIDS, Prague, Czech RepublicDamage to beech, mixed (beech with spruce to spruce with beech) and spruce stands in the Krkonoše Mts. is described on the basis of evaluation of transition matrices describing the probability of a change in the assessment of defoliation of particular trees in defoliation classes. The condition and development of health status were evaluated in the long run on PRP 1-32 in the Krkonoše Mts. by foliage and degrees of defoliation. Features describing the health status of the tree crown (damage by snow, frost, wood-decaying fungi, and insects) were also evaluated. Average defoliation, standard deviation of defoliation, estimation of minimum defoliation, and frequency of the tree number in defoliation classes were calculated for each plot, and each year. Three characteristic periods were distinguished according to different trend of foliage dynamics: period of the first symptoms of damage (1976-1980) - a decrease in foliage on average max. by 1% per year, period of great damage (1981-1988) - annual defoliation on average around 3-16%, period of damage abatement (1989-2009) - annual defoliation on average between 0% and 4%. The incomparably higher resistance of autochthonous stands to air pollution stress culminating in the eighties of the last century was demonstrated unambiguously.https://jfs.agriculturejournals.cz/artkey/jfs-201011-0006_health-status-of-forest-stands-on-permanent-research-plots-in-the-krkonose-mts.phpair pollutionbeech, mixed and spruce standsdamagedefoliationhealth statuskrkonoše mts.transition matrices |
| spellingShingle | S. Vacek K. Matějka Health status of forest stands on permanent research plots in the Krkonoše Mts. Journal of Forest Science air pollution beech, mixed and spruce stands damage defoliation health status krkonoše mts. transition matrices |
| title | Health status of forest stands on permanent research plots in the Krkonoše Mts. |
| title_full | Health status of forest stands on permanent research plots in the Krkonoše Mts. |
| title_fullStr | Health status of forest stands on permanent research plots in the Krkonoše Mts. |
| title_full_unstemmed | Health status of forest stands on permanent research plots in the Krkonoše Mts. |
| title_short | Health status of forest stands on permanent research plots in the Krkonoše Mts. |
| title_sort | health status of forest stands on permanent research plots in the krkonose mts |
| topic | air pollution beech, mixed and spruce stands damage defoliation health status krkonoše mts. transition matrices |
| url | https://jfs.agriculturejournals.cz/artkey/jfs-201011-0006_health-status-of-forest-stands-on-permanent-research-plots-in-the-krkonose-mts.php |
| work_keys_str_mv | AT svacek healthstatusofforeststandsonpermanentresearchplotsinthekrkonosemts AT kmatejka healthstatusofforeststandsonpermanentresearchplotsinthekrkonosemts |