The features of silver birch Betula verrucosa Ehrh. and downy birch Betula pubescens Ehrh. seed regeneration in subtaiga and forest-steppe of Western Siberia
Article considers results of long-term studies of birch undergrowth in subtaiga subzone and forest-steppe zone of Western Siberia, the features of silver and downy birch seed regeneration under the canopy of parent stands, on logging, burned and abandoned arable lands, and hayfields. The distance of...
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| Format: | Article |
| Language: | English |
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Russian Academy of Sciences, Siberian Branch Publishing House
2016-12-01
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| Series: | Сибирский лесной журнал |
| Subjects: | |
| Online Access: | http://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/6e8/6e8f323c7ae5020e88bb938d2df444dd.pdf |
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| author | B. E. Chizhov R. I. Ivanova V. A. Shtol O. A. Kulyasova |
| author_facet | B. E. Chizhov R. I. Ivanova V. A. Shtol O. A. Kulyasova |
| author_sort | B. E. Chizhov |
| collection | DOAJ |
| description | Article considers results of long-term studies of birch undergrowth in subtaiga subzone and forest-steppe zone of Western Siberia, the features of silver and downy birch seed regeneration under the canopy of parent stands, on logging, burned and abandoned arable lands, and hayfields. The distance of seed dispersal by wind, dynamics of accumulation of self-sown birch after continuous tillage and plough furrows is specified. It was found that seed regeneration under the birch stand canopy is hindered by drying of litter and root competition of the parent stand. A necessary condition for the germination of small seeds and the survival of weak shoots of birches is sufficient rainfall during the period of seed production and careful soil treatment, which provides removal of litter, total removal of herbaceous vegetation and soil reserve of weed seeds: continuous repeated plowing, bulldozing strips or shallow plow furrow with 0.7−1.0 m in width, with their additional cultivation. The most effective way of preparing land for seed regeneration of birch trees in arid steppe conditions is to transfer it under temporary cultivation of grain-crops, providing suppression of permanent weeds. Autumn plowing after harvest will provide annual readiness of the site for seed colonization of the birches. When there is an optimum combination of good seed harvest, rainy weather conditions, and appearance of mass self-sown birch, the land is excluded from the agricultural use. Prerequisites: the presence of seed productive walls of birch with preliminary removal of aspen and undesirable forms of birch. In spring of the next year an inventory is done of wintered self-sown birches, at least on 100 evenly spaced accounting plots. If the self-seeding dies, the site continues to be used by agriculture. Less reliable but acceptable is tillage by bulldozer stripes and furrows with 0.7−1.0 m in width, in a year of abundant seed production, before the start of mass seed fall. |
| first_indexed | 2024-12-19T10:36:20Z |
| format | Article |
| id | doaj.art-9e10a0ed1a9e4d158e2b828a9c005a9b |
| institution | Directory Open Access Journal |
| issn | 2311-1410 2312-2099 |
| language | English |
| last_indexed | 2024-12-19T10:36:20Z |
| publishDate | 2016-12-01 |
| publisher | Russian Academy of Sciences, Siberian Branch Publishing House |
| record_format | Article |
| series | Сибирский лесной журнал |
| spelling | doaj.art-9e10a0ed1a9e4d158e2b828a9c005a9b2022-12-21T20:25:36ZengRussian Academy of Sciences, Siberian Branch Publishing HouseСибирский лесной журнал2311-14102312-20992016-12-0136495910.15372/SJFS20160605The features of silver birch Betula verrucosa Ehrh. and downy birch Betula pubescens Ehrh. seed regeneration in subtaiga and forest-steppe of Western SiberiaB. E. Chizhov0R. I. Ivanova1V. A. Shtol2O. A. Kulyasova3All-Russian Research Institute of Silviculture and Mechanization of Forestry, Siberian Forest Experimental StationAll-Russian Research Institute of Silviculture and Mechanization of Forestry, Siberian Forest Experimental StationAll-Russian Research Institute of Silviculture and Mechanization of Forestry, Siberian Forest Experimental StationState Agrarian University of Northern ZauralieArticle considers results of long-term studies of birch undergrowth in subtaiga subzone and forest-steppe zone of Western Siberia, the features of silver and downy birch seed regeneration under the canopy of parent stands, on logging, burned and abandoned arable lands, and hayfields. The distance of seed dispersal by wind, dynamics of accumulation of self-sown birch after continuous tillage and plough furrows is specified. It was found that seed regeneration under the birch stand canopy is hindered by drying of litter and root competition of the parent stand. A necessary condition for the germination of small seeds and the survival of weak shoots of birches is sufficient rainfall during the period of seed production and careful soil treatment, which provides removal of litter, total removal of herbaceous vegetation and soil reserve of weed seeds: continuous repeated plowing, bulldozing strips or shallow plow furrow with 0.7−1.0 m in width, with their additional cultivation. The most effective way of preparing land for seed regeneration of birch trees in arid steppe conditions is to transfer it under temporary cultivation of grain-crops, providing suppression of permanent weeds. Autumn plowing after harvest will provide annual readiness of the site for seed colonization of the birches. When there is an optimum combination of good seed harvest, rainy weather conditions, and appearance of mass self-sown birch, the land is excluded from the agricultural use. Prerequisites: the presence of seed productive walls of birch with preliminary removal of aspen and undesirable forms of birch. In spring of the next year an inventory is done of wintered self-sown birches, at least on 100 evenly spaced accounting plots. If the self-seeding dies, the site continues to be used by agriculture. Less reliable but acceptable is tillage by bulldozer stripes and furrows with 0.7−1.0 m in width, in a year of abundant seed production, before the start of mass seed fall.http://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/6e8/6e8f323c7ae5020e88bb938d2df444dd.pdfthe features of silver and downy birch seed regeneration under the canopy of parent standson loggingburned and abandoned arable landsand hayfields. The distance of seed dispersal by winddynamics of accumulation of self-sown birch after continuous tillage and plough furrows is specified. It was found that seed regeneration under the birch stand canopy is hindered by drying of litter and root competition of the parent stand. A necessary condition for the germination of small seeds and the survival of weak shoots of birches is sufficient rainfall during the period of seed production and careful soil treatmentwhich provides removal of littertotal removal of herbaceous vegetation and soil reserve of weed seeds: continuous repeated plowingbulldozing strips or shallow plow furrow with 0.7−1.0 m in widthwith their additional cultivation. The most effective way of preparing land for seed regeneration of birch trees in arid steppe conditions is to transfer it under temporary cultivation of grain-cropsproviding suppression of permanent weeds. Autumn plowing after harvest will provide annual readiness of the site for seed colonization of the birches. When there is an optimum combination of good seed harvestrainy weather conditionsand appearance of mass self-sown birchthe land is excluded from the agricultural use. Prerequisites: the presence of seed productive walls of birch with preliminary removal of aspen and undesirable forms of birch. In spring of the next year an inventory is done of wintered self-sown birchesat least on 100 evenly spaced accounting plots. If the self-seeding diesthe site continues to be used by agriculture. Less reliable but acceptable is tillage by bulldozer stripes and furrows with 0.7−1.0 m in widthin a year of abundant seed productionWestern Siberiaforest steppebirchseed reproductionburnslogging landsarable lands |
| spellingShingle | B. E. Chizhov R. I. Ivanova V. A. Shtol O. A. Kulyasova The features of silver birch Betula verrucosa Ehrh. and downy birch Betula pubescens Ehrh. seed regeneration in subtaiga and forest-steppe of Western Siberia Сибирский лесной журнал the features of silver and downy birch seed regeneration under the canopy of parent stands on logging burned and abandoned arable lands and hayfields. The distance of seed dispersal by wind dynamics of accumulation of self-sown birch after continuous tillage and plough furrows is specified. It was found that seed regeneration under the birch stand canopy is hindered by drying of litter and root competition of the parent stand. A necessary condition for the germination of small seeds and the survival of weak shoots of birches is sufficient rainfall during the period of seed production and careful soil treatment which provides removal of litter total removal of herbaceous vegetation and soil reserve of weed seeds: continuous repeated plowing bulldozing strips or shallow plow furrow with 0.7−1.0 m in width with their additional cultivation. The most effective way of preparing land for seed regeneration of birch trees in arid steppe conditions is to transfer it under temporary cultivation of grain-crops providing suppression of permanent weeds. Autumn plowing after harvest will provide annual readiness of the site for seed colonization of the birches. When there is an optimum combination of good seed harvest rainy weather conditions and appearance of mass self-sown birch the land is excluded from the agricultural use. Prerequisites: the presence of seed productive walls of birch with preliminary removal of aspen and undesirable forms of birch. In spring of the next year an inventory is done of wintered self-sown birches at least on 100 evenly spaced accounting plots. If the self-seeding dies the site continues to be used by agriculture. Less reliable but acceptable is tillage by bulldozer stripes and furrows with 0.7−1.0 m in width in a year of abundant seed production Western Siberia forest steppe birch seed reproduction burns logging lands arable lands |
| title | The features of silver birch Betula verrucosa Ehrh. and downy birch Betula pubescens Ehrh. seed regeneration in subtaiga and forest-steppe of Western Siberia |
| title_full | The features of silver birch Betula verrucosa Ehrh. and downy birch Betula pubescens Ehrh. seed regeneration in subtaiga and forest-steppe of Western Siberia |
| title_fullStr | The features of silver birch Betula verrucosa Ehrh. and downy birch Betula pubescens Ehrh. seed regeneration in subtaiga and forest-steppe of Western Siberia |
| title_full_unstemmed | The features of silver birch Betula verrucosa Ehrh. and downy birch Betula pubescens Ehrh. seed regeneration in subtaiga and forest-steppe of Western Siberia |
| title_short | The features of silver birch Betula verrucosa Ehrh. and downy birch Betula pubescens Ehrh. seed regeneration in subtaiga and forest-steppe of Western Siberia |
| title_sort | features of silver birch betula verrucosa ehrh and downy birch betula pubescens ehrh seed regeneration in subtaiga and forest steppe of western siberia |
| topic | the features of silver and downy birch seed regeneration under the canopy of parent stands on logging burned and abandoned arable lands and hayfields. The distance of seed dispersal by wind dynamics of accumulation of self-sown birch after continuous tillage and plough furrows is specified. It was found that seed regeneration under the birch stand canopy is hindered by drying of litter and root competition of the parent stand. A necessary condition for the germination of small seeds and the survival of weak shoots of birches is sufficient rainfall during the period of seed production and careful soil treatment which provides removal of litter total removal of herbaceous vegetation and soil reserve of weed seeds: continuous repeated plowing bulldozing strips or shallow plow furrow with 0.7−1.0 m in width with their additional cultivation. The most effective way of preparing land for seed regeneration of birch trees in arid steppe conditions is to transfer it under temporary cultivation of grain-crops providing suppression of permanent weeds. Autumn plowing after harvest will provide annual readiness of the site for seed colonization of the birches. When there is an optimum combination of good seed harvest rainy weather conditions and appearance of mass self-sown birch the land is excluded from the agricultural use. Prerequisites: the presence of seed productive walls of birch with preliminary removal of aspen and undesirable forms of birch. In spring of the next year an inventory is done of wintered self-sown birches at least on 100 evenly spaced accounting plots. If the self-seeding dies the site continues to be used by agriculture. Less reliable but acceptable is tillage by bulldozer stripes and furrows with 0.7−1.0 m in width in a year of abundant seed production Western Siberia forest steppe birch seed reproduction burns logging lands arable lands |
| url | http://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/6e8/6e8f323c7ae5020e88bb938d2df444dd.pdf |
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