Divergence of biogeocenoses within pine forest types

Sannikov, S. N.; Петрова, И. В.; Sannikova, N. S.; Kochybei, A. A.; Sannikov, D. S.

doi:10.1134/s1067413617040142

Cited by 11 publications

(10 citation statements)

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“…The problems of biodiversity (Mirkin et al, 2014;Sannikov et al, 2017;Ivanova, 2019) and forest productivity (Usoltsev et al, 2011(Usoltsev et al, , 2019Schepaschenko et al, 2017), ecology of individual species of woody plants ( Kalashnikova & Makhnev, 2013;Maiti et al, 2016;Sannikov et al, 2018), history of vegetation development (Panova & Antipina, 2016), reforestation and stand formation (Tantsyrev & Sannikov, 2008;Menshchikov et al, 2013;Fomin et al, 2015;Zalesova et al, 2019) have been actively discussed in the literature for the Ural Mountains, but our study on the adaptation of forest ecosystem vegetation to different moisture regimes is one of the first for taiga mountain forests in Russia. It has estimated the stability and trends of changing species composition and productivity when changing the moisture regime.…”

Section: Discussionmentioning

confidence: 97%

Influence of soil moisture regime on the species diversity and biomass of the herb layer of pine forests in the Ural Mountains

Ivanova

Zolotova

2020

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Adaptation of plant communities is an important factor for maintaining their functioning and stability in changing conditions. The aim of our research is study of the effect of soil moisture regime on the species richness and biomass of the herb layer for old-growth coniferous forests in the Ural Mountains (Russia). The research has been carried out between 57° 00'N; 60° 15''E and 57° 05'N; 60° 25'E. The studied area is part of the Zauralsky hilly piedmont province, the Southern boreal forest region. Sample plots (0.25 hectares) were laid in pine forests growing in habitats with different moisture regimes: insufficient, optimal (stable), and excessive. The research was conducted in 2010. To determine the herb layer productivity, 10-20 subplots 1x1 m in size were laid on each sample plot. Data analysis is based on the One-way ANOVA and species abundance distributions. It has been established that species richness in extreme (insufficient and excessive soil moisture regime (Cowberry pine forest and Pine forest with shrubs and sphagnum) and optimal (stable) soil moisture regime (Multi-herb pine forest) were found to vary significantly, with soil moisture regime being a statistically significant factor. By contrast, herb layer biomass is maintained fairly stable regardless of the soil moisture regimes. ANOVA showed no significant differences between pine forests growing under different soil moisture regimes. It has been found that biomass is maintained by increasing of the dominant species contribution to the overall biomass and increasing of the approximation function graph slope. At the same time, the parameter β of exponential and power approximating functions is increased and can be considered as an indicator of influencing on forest ecosystems and a measure of their adaptation to insufficient and excessive soil moisture. Thus, species abundance distributions can be used as method to measure the effects of factors that determine forest ecosystem composition and functioning.

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Section: Discussionmentioning

confidence: 97%

Influence of soil moisture regime on the species diversity and biomass of the herb layer of pine forests in the Ural Mountains

Ivanova

Zolotova

2020

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“…The processes of natural reforestation play a crucial role for the preservation of primary coniferous forests and the success of their restoration after catastrophic impacts [1]. The presence or absence of coniferous saplings under the forest canopy is a "trigger" of recovery-age shifts after logging, and the ability to appear and survive seedlings of woody plants in open habitats determines the success of natural reforestation after deforestation [7]. However, the processes of natural regeneration, which have their own characteristics in different regions and types of forest, are not fully understood.…”

Section: Introductionmentioning

confidence: 99%

Age structure of coniferous saplings in mountain old-growth forests of the Middle Urals

Ivanova

Петрова

2021

E3S Web Conf.

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The processes of natural reforestation play a crucial role for the preservation of primary coniferous forests and the success of their restoration after catastrophic impacts. The objective of our research was to identify the features of the natural renewal of the main coniferous forest-forming plants under the canopy of stands in the mountains of the Middle Urals, to establish dependencies on the forest type not only the total number of tree saplings, but also its age structure. The research was carried out in the mountainous part of the Sverdlovsk region (Russia) on the eastern macroslope of the Ural Mountains. We studied old-age pine forests, which belong to the 4 most common forest types. The tree saplings were counted into account on 2-4 subplots with a length of 20 meters and a width of 2 meters. It is established that under the canopy of all types of forest there is a different age coniferous saplings, despite significant differences in habitats. The most abundant pine saplings are found in pine forests with Vaccinium vitis-idaea, and the most abundant spruce saplings is found in pine forest with spruce and moss cover.

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“…al.]. At the same time, the influence of root competition of stands (RSC) of different species composition for soil nutrition, which in some cases may be a priority [10,11], was almost not considered.…”

Section: Introductionmentioning

confidence: 99%

“…The purpose of this work is a comparative analysis using the previously proposed and tested [10,11] complex of indices of light (Ilcs), root (Ircs) and integral (Irlcs) competition of the stand against the Siberian stone pine undergrowth in the same type of forest growing conditions under the canopy of the native parental Siberian stone pine forest and of the derivatives pine and birch forests.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of the competition of stands of different species composition in relation to the Siberian stone pine undergrowth

Tantsyrev

2021

BIO Web Conf.

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Under the canopy of the parent native berry-green-moss Siberian stone pine forest and derivatives berry-green-moss pine and birch forests on the Urals, using the previously proposed complex of light, root, and integral competition indices of the stand, a comparative analysis of the parameters of the Siberian stone pine undergrowth is carried out. Under the canopy of Siberian stone pine forest two main determining factors have a negative complex effect on the growth of the Siberian stone pine undergrowth: the light competition of the stand (the level of photosynthetically active radiation interception by its canopy) and, almost equal to it, the root competition for soil nutrition. Under the pine forest canopy with the combined negative effect of factors of light and root competition of the stand on the development of Siberian stone pine undergrowth, light competition is decisive. The effect of the root competition is less than almost two times. Under the birch forest canopy the main factor determining the development of Siberian stone pine undergrowth is the light competition of the stand. The connection with the root competition of stand is not expressed.

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Divergence of biogeocenoses within pine forest types

Cited by 11 publications

References 1 publication

Influence of soil moisture regime on the species diversity and biomass of the herb layer of pine forests in the Ural Mountains

Influence of soil moisture regime on the species diversity and biomass of the herb layer of pine forests in the Ural Mountains

Age structure of coniferous saplings in mountain old-growth forests of the Middle Urals

Comparative analysis of the competition of stands of different species composition in relation to the Siberian stone pine undergrowth

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