Features of age dynamics of natural regeneration of Scots pine in the fresh pine sites of Kyiv Polissia

Maurer, Veronika; Kimeichuk, Ivan

doi:10.31548/forest2020.01.045

Cited by 3 publications

(5 citation statements)

References 7 publications

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“…We assume that one of the main reasons leading to the mortality of self-seeding is its suppression by grass vegetation (Gordienko, Kovalevsky 2002;Maurer et al 2013), besides other factors such as the cies (oak, willow, rowan, birch, beech and hornbeam) are less frequent -the values vary from 0.8% to 11.8% (Figure 3), which characterizes an uneven distribution of the species in the area. The analysis shows that Scots pine regeneration mainly comprises small seedlings below 20 cm in height, whereas larger undergrowth can also be seen with the rarer species (Table 1).…”

Section: Resultsmentioning

confidence: 99%

“…To date, many Ukrainian scientists have studied the natural regeneration of pine after clearcut at different times (Fuchylo 2011;Maurer et al 2013;Levchenko, Mazurenko 2017;Maurer, Kimeichuk 2020) and foreign scientists (Dong et al 2003;Andrzejczyk, Żybura 2012;Dobrowolska 2015;Czyżyk 2017;Aleksandrowicz-Trzcińska et al 2018;Bílek et al 2018;Saursaunet et al 2018;Długosiewicz et al 2019;Przybylski et al 2021). Fuchylo (2011) described the abundant natural regeneration in the humid forests of Eastern Polissya.…”

Section: Discussionmentioning

confidence: 99%

“…CNS aims at the development of mixed forests with high structural diversity from natural regeneration. Many scientists recommend especially natural regeneration as a rejuvenation method, given its advantages over artificial methods (Maurer 2007(Maurer , 2012Stefańska-Krzaczek 2012;Maurer et al 2013;Brang et al 2014;Krynytskyy et al 2014;Bílek et al 2016Bílek et al , 2018Krynytska 2019;Gallo et al 2020;Maurer, Kimeichuk 2020;Lavnyy 2021). It is acknowledged that the natural regeneration of plants under the shelter of the mother stand significantly improves the initial growth and quality of the plants, reduces risks and enhances adaptation to a changing climate.…”

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confidence: 99%

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Silvicultural options to promote natural regeneration of Scots pine (Pinus sylvestris L.) in Western Ukrainian forests

Lavnyy¹,

Spathelf²,

Kravchuk³

et al. 2022

J. For. Sci.

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Scots pine (Pinus sylvestris L.) forests belong to the most relevant forest types in the Western Ukrainian Roztochia area. The promotion of close-to-nature forest management in Ukraine in the framework of the forest strategy 2 035 supports natural regeneration and the application of diverse felling methods beyond clearcutting. In the present study, natural regeneration was analysed in mixed Scots pine stands on poor and relatively rich soils, after small clearcuts, shelterwood cutting and gap fellings (with or without soil preparation), with respect to tree species composition, species abundance and height growth. It could be shown that Scots pine is the most abundant species in all the felling systems, with on average more than 100 000 plants per ha on poor soils. Other admixed tree species only occur with small shares. Natural regeneration, especially of Scots pine, was less abundant on rich soils and in shelterwood, compared to a small clearcut. After the young plants have established, their abundance declined in the second and third year due to competing herbaceous plants and thick litter.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Silvicultural options to promote natural regeneration of Scots pine (Pinus sylvestris L.) in Western Ukrainian forests

Lavnyy¹,

Spathelf²,

Kravchuk³

et al. 2022

J. For. Sci.

View full text Add to dashboard Cite

show abstract

“…After the predominant group of undergrowth heights on the area was established, the undergrowth of other height groups was transferred to the predominant group of heights according to the corresponding conversion coefficients (Table 1) [42]. When describing the forest live cover, the species composition and abundance of undergrowth were determined according to the method of G.M.…”

Section: Methodsmentioning

confidence: 99%

“…When describing the forest live cover, the species composition and abundance of undergrowth were determined according to the method of G.M. Vysotskyi, modified by the authors [42].…”

Section: Methodsmentioning

confidence: 99%

Natural afforestation of the fallows in the Western Polissya

Kimeichuk¹,

Kaidyk²

2022

Ukr. j. for. wood sci.

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One of the main tasks of forestry in Ukraine is to increase forest cover – it can be partially solved by the development of low-productive agricultural land, in particular, fallows, on which self-sown forest is already growing or just appearing, since the expanded reproduction of forests is relevant for Ukraine, considering ecological and forestry transformations of fallows conditioned by their natural afforestation. The main goal was to evaluate the success of natural renewal on fallows in the region under study, to identify factors influencing the course of natural afforestation and tree conservation depending on the location of the plot relative to the forest border and the distance to it. General scientific, forestry and taxation, reconnaissance, forestry and ecological, and geobotanics methods were used to investigate natural renewal at fallows. Office study of materials was carried out using mathematical statistics. As a result of a detailed investigation of the natural settlement of forest tree species on abandoned fields of Western Polissya, it was found that in coniferous and subor conditions, the plots are mostly wooded with pine, as well as birch and alder. In most of the test plots, the renewal was satisfactory (according to the Nesterov scale). The number of self-seeding of tree species in the test plots was not uniform and ranged from 1.2-13.1 thous. units/ha depending on forest site types, species composition, undergrowth size, the abundance of living ground cover, and the degree of sodding of the site and clogging with weeds and grass, which ranged from 20 to 90%. The occurrence of natural renewal is also not uniform: from 19 to 100%. The spread of tree species occurred mainly from forest stands located to the west, northwest, and north of the fallows. The findings of the study are extremely important for employees of the forest industry, and can also be used by territorial communities in improving land management, establishing landscape parks, etc.

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Experimental Felling in Assistance to Natural Forest Regeneration in Kyiv Region

LEVCHENKO¹,

HUMENIUK²

2022

Ukr. j. for. wood sci.

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Forest management in Ukraine should be conducted considering climate change, as well as degradation and mass drying of forests. It also must follow the principles of preserving the conditions for the reproduction of biologically stable, highly productive tree stands and rational and sustainable use of forest resources. Therefore, one of the main tasks of forest management is to maximize the use of the natural seed potential of forest stands. Felling corresponds to this principle, being aimed at maximizing the use of natural seed regeneration of the forest, and as a methodological basis for creating highly productive, biologically stable forest stands. The purpose of this study is to develop a felling method that promotes natural forest regeneration and offer organizational and technical indicators for its implementation. Accounting of natural forest regeneration was performed per the A.V. Pobedynskyi’s method; the natural forest regeneration was estimated according to V.G. Nesterov’s scale; the projective cover of the forest ground vegetation was figured out on the Brown-Blanquet scale; the dryness of the climate was figured out according to the De Martonne’s aridity index; the humidification conditions at the experimental site were investigated using G.T. Selyaninov’s hydrothermal coefficient; the sum of active temperatures was figured out according to the method of the Ukrainian Hydrometeorological Centre. The regulatory framework for felling to form and sanitise forests was analysed. It was found that the current rules do not make provision for felling that would be most favourable for the natural renewal of economically valuable tree species in forests of any category, age, composition, and structure. The results of accounting and evaluation of natural forest regeneration in felled circular areas are presented. It was found that under the condition of average (3 points) and higher points of seed bearing (fruiting) and sufficient moisture on circular plots with a diameter of 1.5 of the average height of the stand (Havg), there was a very dense, healthy, evenly distributed natural forest regeneration. Dense understorey and significant sodding of the soil surface (over 50% of the area) with forest ground vegetation negatively impact the natural forest regeneration in the first year of life. Otherwise, special tillage is ineffective. In 2020, despite the decade-long droughts in March-April, as well as in August-September, favourable conditions for natural forest regeneration developed. In May and June, there was an increase in precipitation compared to the previous and subsequent months after the emergence of seedlings, which positively affected their rooting and growth. Feeling that contributes to the natural forest regeneration should be classified as felling for the formation and sanitation of forests, and the proposed organizational and technical indicators should be set up for it. The conclusions of this study will serve as a methodological framework for the introduction of a new method of felling in forest stands, which would be as favourable as possible for a sufficient amount of high-quality, viable natural regeneration of economically valuable tree species

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Features of age dynamics of natural regeneration of Scots pine in the fresh pine sites of Kyiv Polissia

Cited by 3 publications

References 7 publications

Silvicultural options to promote natural regeneration of Scots pine (Pinus sylvestris L.) in Western Ukrainian forests

Silvicultural options to promote natural regeneration of Scots pine (Pinus sylvestris L.) in Western Ukrainian forests

Natural afforestation of the fallows in the Western Polissya

Experimental Felling in Assistance to Natural Forest Regeneration in Kyiv Region

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