Natural pine regeneration on burns in forest-steppe of Western Siberia
The structure and seed bearing of stands, factors of episoil medium, quantity, vitality and age structure of Scots pine undergrowth 15 years after the disastrous crown and surface fire, which occurred in 2004 in insular pine forest in northern forest-steppe of Western Siberia (Kurgan region), were s...
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Russian Academy of Sciences, Siberian Branch Publishing House
2019-10-01
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Series: | Сибирский лесной журнал |
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Online Access: | http://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/e4b/e4b89a51ffbec67d6520ef8a14f0ecfd.pdf |
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doaj-476c3411f09d4fc5a134dc2024c895f22021-07-02T10:10:49ZengRussian Academy of Sciences, Siberian Branch Publishing HouseСибирский лесной журнал2311-14102312-20992019-10-0165222910.15372/SJFS20190503Natural pine regeneration on burns in forest-steppe of Western SiberiaN. S. Sannikova0S. N. Sannikov1A. A. Kochubei2I. V. Petrova3Botanical Garden, Russian Academy of Sciences, Ural BranchBotanical Garden, Russian Academy of Sciences, Ural BranchBotanical Garden, Russian Academy of Sciences, Ural BranchBotanical Garden, Russian Academy of Sciences, Ural BranchThe structure and seed bearing of stands, factors of episoil medium, quantity, vitality and age structure of Scots pine undergrowth 15 years after the disastrous crown and surface fire, which occurred in 2004 in insular pine forest in northern forest-steppe of Western Siberia (Kurgan region), were studied. The studies took place at six sample plots (0.3–0.5 ha) located in two predominant (88 %) types of pine forests – cowberry-short grasses-moss and bilberry-bracken – at four types of burns: 1) «burn under the forest canopy», 2) «thin stand burn», 3) «open burn with peripheral insemination» and 4) «open burn without insemination». The reliable differences in pine regeneration in different types of burns in both types of forests were specified. They were conditioned mainly by differences in their stand density and dissemination levels. The total pine regeneration level in forest-steppe was several times less than in pre-forest-steppe. This was connected with extreme dryness of the studied climate period and low seeding of stands, damaged by the intensive fires. The renewal role of dissemination of 2003 which took place simultaneously with the fire; absence of mouse-like rodents (main seed consumers), as well as sharp change of sex ratio in pine populations (to female dominance) due to intensive surface fire have been shown. On the whole, the total summer precipitation played the main role in pine regeneration of all burn types in forest-steppe zone of Western Siberia.http://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/e4b/e4b89a51ffbec67d6520ef8a14f0ecfd.pdfnorthern forest-steppepinus sylvestriscrown firetype of burnregeneration |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
N. S. Sannikova S. N. Sannikov A. A. Kochubei I. V. Petrova |
spellingShingle |
N. S. Sannikova S. N. Sannikov A. A. Kochubei I. V. Petrova Natural pine regeneration on burns in forest-steppe of Western Siberia Сибирский лесной журнал northern forest-steppe pinus sylvestris crown fire type of burn regeneration |
author_facet |
N. S. Sannikova S. N. Sannikov A. A. Kochubei I. V. Petrova |
author_sort |
N. S. Sannikova |
title |
Natural pine regeneration on burns in forest-steppe of Western Siberia |
title_short |
Natural pine regeneration on burns in forest-steppe of Western Siberia |
title_full |
Natural pine regeneration on burns in forest-steppe of Western Siberia |
title_fullStr |
Natural pine regeneration on burns in forest-steppe of Western Siberia |
title_full_unstemmed |
Natural pine regeneration on burns in forest-steppe of Western Siberia |
title_sort |
natural pine regeneration on burns in forest-steppe of western siberia |
publisher |
Russian Academy of Sciences, Siberian Branch Publishing House |
series |
Сибирский лесной журнал |
issn |
2311-1410 2312-2099 |
publishDate |
2019-10-01 |
description |
The structure and seed bearing of stands, factors of episoil medium, quantity, vitality and age structure of Scots pine undergrowth 15 years after the disastrous crown and surface fire, which occurred in 2004 in insular pine forest in northern forest-steppe of Western Siberia (Kurgan region), were studied. The studies took place at six sample plots (0.3–0.5 ha) located in two predominant (88 %) types of pine forests – cowberry-short grasses-moss and bilberry-bracken – at four types of burns: 1) «burn under the forest canopy», 2) «thin stand burn», 3) «open burn with peripheral insemination» and 4) «open burn without insemination». The reliable differences in pine regeneration in different types of burns in both types of forests were specified. They were conditioned mainly by differences in their stand density and dissemination levels. The total pine regeneration level in forest-steppe was several times less than in pre-forest-steppe. This was connected with extreme dryness of the studied climate period and low seeding of stands, damaged by the intensive fires. The renewal role of dissemination of 2003 which took place simultaneously with the fire; absence of mouse-like rodents (main seed consumers), as well as sharp change of sex ratio in pine populations (to female dominance) due to intensive surface fire have been shown. On the whole, the total summer precipitation played the main role in pine regeneration of all burn types in forest-steppe zone of Western Siberia. |
topic |
northern forest-steppe pinus sylvestris crown fire type of burn regeneration |
url |
http://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/e4b/e4b89a51ffbec67d6520ef8a14f0ecfd.pdf |
work_keys_str_mv |
AT nssannikova naturalpineregenerationonburnsinforeststeppeofwesternsiberia AT snsannikov naturalpineregenerationonburnsinforeststeppeofwesternsiberia AT aakochubei naturalpineregenerationonburnsinforeststeppeofwesternsiberia AT ivpetrova naturalpineregenerationonburnsinforeststeppeofwesternsiberia |
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