Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine”
Introduction Elms are spread in forests, landscaping settlements, and protective forest belts. After several waves of elm mortality from Dutch elm disease (DED) in the 20th century, individual populations recovered or formed resistant hybrids. However, epiphytoties of bacterial and fungal diseases s...
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Ukrainian Research Institute of Forestry and Forest Melioration named after G. M. Vysotsky (URIFFM)
2024
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Forestry and Forest Melioration| _version_ | 1856543484143468544 |
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| author | Meshkova, V. L. Kuznetsova, O. A. Pyvovar, T. S. |
| author_facet | Meshkova, V. L. Kuznetsova, O. A. Pyvovar, T. S. |
| author_sort | Meshkova, V. L. |
| baseUrl_str | |
| collection | OJS |
| datestamp_date | 2024-08-28T10:03:11Z |
| description | Introduction
Elms are spread in forests, landscaping settlements, and protective forest belts. After several waves of elm mortality from Dutch elm disease (DED) in the 20th century, individual populations recovered or formed resistant hybrids. However, epiphytoties of bacterial and fungal diseases sometimes develop, particularly due to pathogen vectoring by bark beetles. In Ukraine, the spread of elms and their damage by different causes are relatively poorly investigated.
This research aimed to discover the features of Ulmus sp. distribution by stand origin, age, and forest site condition in the forest fund of the Branch “Myrhorod Forestry”.
Materials and Methods
The data as of 2010 and 2017 on the forest fund of enterprises belonging to the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” were selected from the database of Ukrainian State Forest Management Planning Association “Ukrderzhlisproekt” using SQL-query and converted to the *.xls files.
Area distribution by types of forest site conditions was assessed following the Ukrainian school of forest typology. Such distributions for the entire area covered with forest vegetation, for subcompartments with elms in the stand composition, and with elms as the dominant species were compared for various elm species and stand origins, using c2-test. The percentages of stand areas of different origins and elm species in 2010 and 2017 were compared using z-test in the two proportions comparisons.
The data for subcompartments with various elms as the dominant species and as a part of stands composition have been analyzed by 10-year age classes for different origins (natural and planted). The proportion of the stand area of each 10-year age class was assessed for each set of subcompartments. Then the proportion of the stands’ area, which survives up to a certain age, was evaluated.
Results and Conclusions
In the Branch “Myrhorod forestry”, an area of natural stands with Ulmus sp. as the dominant species for 2010–2017, and the proportion of U. minor has significantly increased. The most dramatic decrease in the survival rate of all elm species of natural stands occurred in the VI age class and planted stands in the V age class. Respective natural and planted stands were formed in the 1960s and 1970s when the peak of DED occurred in many regions.
In the Branch “Myrhorod Forestry”, U. minor prefers moist fertile forest site conditions. U. laevis grows mainly in moist forest site conditions, U. pumila occurs in dry to wet habitats, U. glabra is present only in natural stands and absent in plantations. As part of stand composition, the same elm species grow in a wider range of forest site conditions than elms as the dominant species.
2 Figs., 8 Tables, 31 Refs. |
| first_indexed | 2026-02-08T08:03:57Z |
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| id | oai:ojs2.forestry-forestmelioration.org.ua:article-398 |
| institution | Forestry and Forest Melioration |
| language | English |
| last_indexed | 2026-02-08T08:03:57Z |
| publishDate | 2024 |
| publisher | Ukrainian Research Institute of Forestry and Forest Melioration named after G. M. Vysotsky (URIFFM) |
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| spelling | oai:ojs2.forestry-forestmelioration.org.ua:article-3982024-08-28T10:03:11Z Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” Meshkova, V. L. Kuznetsova, O. A. Pyvovar, T. S. Ulmus minor U. laevis U. pumila U. glabra dominant species survival rate forest site conditions Ulmus minor U. laevis U. pumila U. glabra головні лісоутворювальні види збереженість лісорослинні умови Introduction Elms are spread in forests, landscaping settlements, and protective forest belts. After several waves of elm mortality from Dutch elm disease (DED) in the 20th century, individual populations recovered or formed resistant hybrids. However, epiphytoties of bacterial and fungal diseases sometimes develop, particularly due to pathogen vectoring by bark beetles. In Ukraine, the spread of elms and their damage by different causes are relatively poorly investigated. This research aimed to discover the features of Ulmus sp. distribution by stand origin, age, and forest site condition in the forest fund of the Branch “Myrhorod Forestry”. Materials and Methods The data as of 2010 and 2017 on the forest fund of enterprises belonging to the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” were selected from the database of Ukrainian State Forest Management Planning Association “Ukrderzhlisproekt” using SQL-query and converted to the *.xls files. Area distribution by types of forest site conditions was assessed following the Ukrainian school of forest typology. Such distributions for the entire area covered with forest vegetation, for subcompartments with elms in the stand composition, and with elms as the dominant species were compared for various elm species and stand origins, using c2-test. The percentages of stand areas of different origins and elm species in 2010 and 2017 were compared using z-test in the two proportions comparisons. The data for subcompartments with various elms as the dominant species and as a part of stands composition have been analyzed by 10-year age classes for different origins (natural and planted). The proportion of the stand area of each 10-year age class was assessed for each set of subcompartments. Then the proportion of the stands’ area, which survives up to a certain age, was evaluated. Results and Conclusions In the Branch “Myrhorod forestry”, an area of natural stands with Ulmus sp. as the dominant species for 2010–2017, and the proportion of U. minor has significantly increased. The most dramatic decrease in the survival rate of all elm species of natural stands occurred in the VI age class and planted stands in the V age class. Respective natural and planted stands were formed in the 1960s and 1970s when the peak of DED occurred in many regions. In the Branch “Myrhorod Forestry”, U. minor prefers moist fertile forest site conditions. U. laevis grows mainly in moist forest site conditions, U. pumila occurs in dry to wet habitats, U. glabra is present only in natural stands and absent in plantations. As part of stand composition, the same elm species grow in a wider range of forest site conditions than elms as the dominant species. 2 Figs., 8 Tables, 31 Refs. Проаналізовано базу даних ВО «Укрдержліспроект» станом на 2010 і 2017 рр. стосовно складових нинішньої філії «Миргородське лісове господарство» («Лубенське лісове господарство» та «Миргородське лісове господарство») для оцінювання розподілу вкритих лісовою рослинністю земель, площі з Ulmus sp. як панівного виду та площі ділянок із видами Ulmus sp. у складі насаджень за типами лісорослинних умов та класами віку. За період 2010–2017 рр. площа природних лісів із в’язами як панівними видами та частка домінантного виду U. minor значуще збільшилися. Середній і максимальний віки насаджень залежать від їхнього походження та виду в’язів. Найбільш різке зменшення збереження всіх видів в’язів у природних деревостанах відбувалося у VI класі віку, а в культурах – у V класі віку. Відповідні насадження сформувалися в 1960-ті та 1970-ті рр., коли в багатьох регіонах реєстрували пік поширення голландської хвороби в’язів. Деревостани з участю в’язів презентовані в широкому спектрі трофотопів і гігротопів. За присутності у складі насаджень ті самі види в’язів розповсюджені в ширшому діапазоні типів лісорослинних умов, ніж коли ці види є панівними. U. minor надає перевагу свіжим грудам. U. laevis росте переважно у свіжих грудах і сугрудах, а U. pumila – у гігротопах від сухих до сирих. U. glabra наявний лише в деревостанах природного походження та відсутній у лісових культурах. Ukrainian Research Institute of Forestry and Forest Melioration named after G. M. Vysotsky (URIFFM) 2024-06-27 Article Article application/pdf https://forestry-forestmelioration.org.ua/index.php/journal/article/view/398 10.33220/1026-3365.144.2024.13 Forestry and Forest Melioration; No. 144 (2024): Forestry and Forest Melioration; 13-23 Лісівництво і Агролісомеліорація; № 144 (2024): Лісівництво і Агролісомеліорація; 13-23 2663-4147 1026-3365 10.33220/1026-3365.144.2024 en https://forestry-forestmelioration.org.ua/index.php/journal/article/view/398/363 http://creativecommons.org/licenses/by/4.0 |
| spellingShingle | Ulmus minor U. laevis U. pumila U. glabra головні лісоутворювальні види збереженість лісорослинні умови Meshkova, V. L. Kuznetsova, O. A. Pyvovar, T. S. Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” |
| title | Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” |
| title_alt | Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” |
| title_full | Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” |
| title_fullStr | Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” |
| title_full_unstemmed | Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” |
| title_short | Elms (Ulmus L.) in the Branch “Myrhorod Forestry” of the State Specialized Forest Enterprise “Forests of Ukraine” |
| title_sort | elms (ulmus l.) in the branch “myrhorod forestry” of the state specialized forest enterprise “forests of ukraine” |
| topic | Ulmus minor U. laevis U. pumila U. glabra головні лісоутворювальні види збереженість лісорослинні умови |
| topic_facet | Ulmus minor U. laevis U. pumila U. glabra dominant species survival rate forest site conditions Ulmus minor U. laevis U. pumila U. glabra головні лісоутворювальні види збереженість лісорослинні умови |
| url | https://forestry-forestmelioration.org.ua/index.php/journal/article/view/398 |
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