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Лесоводственная эффективность предварительных лесных культур под пологом березовых древостоев в Курганской области

Лесоводственная эффективность предварительных лесных культур под пологом березовых древостоев в Курганской области

Abstract

The work is devoted to study of preliminary planting of Scots pine and Norway spruce on the territory of Kurgan region. The relevance of the conducted research, no doubt because of the increase in productivity of forests is impossible without replacing the derivatives of the low productive birch forests on indigenous pine forest stands and the creation of preliminary forest cultures, which devoted an article allows you to do it in the shortest possible time with minimum cost. The article analyzes the infl uence of the birch canopy on the status, inventory indices and the growth of pre-crops in height. Recommendations on the optimal fullness for a crop and the timing of removal of the parent stand. Given the taxonomic characteristics of the forest stands and forest cultures, the comparison of preliminary forest cultures and cultures that are founded on cutting. The described technology is creating recommendations to improve the creation of preliminary cultures in the Kurgan region. By results of researches it can be concluded that the inventory indices of preliminary planting grown for a long time under the canopy medium deciduous forest stands lower in comparison with the taxonomic characteristics of crops growing in more sparse stands, and especially in cultures in clearings. The higher the completeness and density of the crowns of the parent stand and the longer culture under the canopy of the forest, the greater the oppression they experience. Bar top is the thinnest what the forest is, the better conditions for growing crops fl oor to the forest canopy. Although pine and can grow in sparse birch forests, the delay in harvesting of hardwood forest leads to the inhibition and slow growth pine. Therefore, the higher the completeness of the deciduous forest, the earlier must be removed the parent stand. Работа посвящена изучению предварительных культур сосны обыкновенной и ели обыкновенной на территории Курганской области. Актуальность проведенных исследований не вызывает сомнения, поскольку повышение продуктивности лесов невозможно без замены производных малоценных березняков на высокопродуктивные коренные сосновые древостои, а создание предварительных культур, которым посвящена статья, позволяет это сделать в кратчайшие сроки с минимумом затрат. Проанализировано влияние березового полога на состояние, таксационные показатели и прирост предварительных культур в высоту. Даны рекомендации по оптимальной полноте для создания предварительных культур и срокам удаления материнского древостоя. Приведена таксационная характеристика древостоев, лесных культур, выполнено сравнение предварительных лесных культур и культур, заложенных на вырубке. Описана технология создания, даны рекомендации по улучшению создания предварительных культур в Курганской области. По результатам исследований можно сделать вывод, что таксационные показатели предварительных культур, произрастающих продолжительное время под пологом среднеполнотных лиственных древостоев, ниже по сравнению с таксационными характеристиками культур, растущих в более редких древостоях, а тем более в культурах на вырубках. Чем выше полнота и сомкнутость крон материнского древостоя и чем дольше культуры находятся под пологом древостоя, тем большее угнетение они испытывают. Чем разреженней древостой, тем лучше условия для произрастания культур под пологом леса. Хотя сосна и способна расти в редкостойных березняках, задержка с уборкой лиственного древостоя ведет к угнетению и замедлению роста сосны. Следовательно, чем выше полнота лиственного древостоя, тем раньше должен быть убран материнский древостой.

Country
Russian Federation
Related Organizations
Keywords

FOREST CULTURES OF SPRUCE, PRELIMINARY PLANTING, БЕРЕЗНЯКИ, ЛЕСНЫЕ КУЛЬТУРЫ СОСНЫ, BIRCH, SAFETY, СОХРАННОСТЬ, ПРЕДВАРИТЕЛЬНЫЕ КУЛЬТУРЫ, FOREST CULTURES OF PINE, ПРОИЗВОДНЫЕ НАСАЖДЕНИЯ, ЛЕСНЫЕ КУЛЬТУРЫ ЕЛИ

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    influence
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green