V. I. Arkhipov

Lesproekt LLC

 Zastavskaya st., 33, Saint Petersburg 196006, Russian Federation

E-mail: lesproekt.spb@mail.ru

Received: 30.05.2026

Revised: 18.06.2026

Accepted: 24.06.2026

The commissioning of the Federal State Forest Information System (FGIS LK) has qualitatively changed the requirements for forest management planning information, while its production base has degraded: a thirty-five-year methodological gap in remote forest inventory, a reduction in the number of forest inventory engineers of state forest planning organizations from about 4000 specialists in 1980 to slightly more than 400 by 2026, a drop in the average annual volume of forest inventory from about 40 to less than 10 million ha against the estimated demand of 30-40 million ha per year, and a four- to five-fold deficit of interpreter workstations. Objective. Scientific and production substantiation of the design of the unified system of forest inventory works of the Russian Federation and confirmation of its production feasibility. Materials and methods. System and regulatory analysis; statistical analysis of departmental data; technical and economic modelling; a production experiment – implementation of the full technological cycle at three sites with independent acceptance of the results by FGIS LK. Results. A two-zone design is substantiated: the forest taxation zone (300-400 million ha, stereo remote sensing imagery with a resolution of at least 0.4 m/pixel) and the forest survey zone (quarter-level detail, imagery of at least 10 m/pixel). A three-stage inventory model with the preliminary status of the desk stages and online entry of the third-stage results into FGIS LK, the “5+1” and “4+1” organizational formulas of a single two-year cycle, and a twelve-stage production technology with built-in quality control are developed. The techno-economic assessment of the public-private partnership yields 6.25-8.9 billion RUB per year for 35-50 million ha, with a federal share of 3.6-4.8 billion RUB; the effect is at least a two-fold increase in labour productivity with an approximately two-fold reduction in unit cost. Conclusion. Given the technical solvability of personnel, infrastructure and methodological problems, the main constraint is the institutional risk – the probability that systemic proposals will not receive serious expert and public consideration.

Keywords: forest management planning, unified system of forest inventory works, forest inventory, Earth remote sensing, forest inventory zoning, analytical-measurement image interpretation, continuous forest management planning, Federal State Forest Information System, public-private partnership, data quality control

REFERENCES

Arkhipov V. I., Kontseptsiya sozdaniya edinoy sistemy lesouchetnykh rabot Rossiyskoy Federatsii: proekt (Concept for creating the unified system of forest inventory works of the Russian Federation: draft), 2025, URL: https://doi.org/10.5281/zenodo.21644754 (2026, 21 June).

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Arkhipov V. I., Tekhnologiya kompleksnogo lesoustroystva “Ot s”emki – do zagruzki vo FGIS LK”: materialy prezentatsii (Integrated Forest management planning technology “From imagery to uploading into FGIS LK”: presentation materials), Saint Petersburg: OOO “Lesproekt”, 2026b, URL: https://doi.org/10.5281/zenodo.21646342 (2026, 21 June).

Arkhipov V. I., Baskov V. I., Berezin V. I., Chernikhovskiy D. M., Metodicheskie polozheniya po taksatsii lesov sposobom lesotaksatsionnogo konturnogo i analitiko-izmeritel’nogo deshifrirovaniya materialov distantsionnogo zondirovaniya Zemli (Methodological provisions for forest inventory by the method of forest taxation contour and analytical-measuring interpretation of Earth remote sensing data), Saint Petersburg: OOO “Lesproekt”, 2026, URL: https://doi.org/10.5281/zenodo.21762201 (2026, 21 June).

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           E. P. Gudkova ¹, E. E. Muchnik ²

¹M. V. Lomonosov Moscow State University,

Leninskiye Gory, 1, Moscow 119234, Russian Federation

E-mail: katy.gudkova@yandex.ru

²Institute of Forest Science of the RAS,

Sovetskaya str., 21, v. Uspenskoye, Moscow region 143030, Russian Federation

E-mail: emuchnik@outlook.com

Received: 29.05.2026

Revised: 15.06.2026

Accepted: 21.06.2026

Relevance and Goal. The Prioksko-Terrasny State Nature Biosphere Reserve, with an area of 4945 ha, is in the Serpukhovsky District of the Moscow Region, in the southern part of the coniferous-broadleaved forest subzone. The lichen biota of the territory has been studied only partially until now. This work aims to update and expand the list of lichens and allied fungi in the State Reserve, as well as to conduct a brief analysis of the identified lichen biota. Material and methods. Available literary sources (beginning in 1906) were analyzed, and routing field excursions were conducted between 2023 and 2024. Materials were collected and studied using generally accepted lichenological techniques. A database is organized and maintained in MS Excel. Results and conclusion. An annotated checklist of the lichen biota of the Prioksko-Terrasny Nature Reserve has been compiled. It comprises 239 species (including 5 questionable ones) from 93 genera and 48 families of lichens and allied fungi. Of these, 90 species are new to the reserve, and 11 are new to the Moscow region, namely: Chaenothecopsis vainioana, Clypeococcum hypocenomycis, Lecanora campestris, L. compallens, L. expallens, Lecanoropsis sarcopidoides, Lecidella carpathica, Lichenoconium erodens, L. lecanorae, Lichenodiplis lecanorae, Psilolechia clavulifera. Eleven lichen species protected in the Moscow Region have been previously observed in the nature reserve, and our research revealed new locations for four species listed in the regional Red Book. The lichen biota of the nature reserve includes 20 species from the preliminary list of indicator species of biologically valuable forest communities in the subzone of coniferous-broadleaved forests. Ecological-substrate analysis showed that most lichens are epiphytic. Epigeic and epilithic species are less common. Among epiphytes the biggest species richness was observed on aspen and birch, and the greatest number of unique species were found on aspen, pine and bird cherry. The greatest diversity of lichens is noted for coniferous and coniferous-broadleaved forests, which are both more widespread communities and communities that are more diverse in the tree species composition.

Keywords: lichens and allied fungi, biodiversity, indicator species, protected species, protected areas, Moscow Region

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]]> https://jfsi.ru/en/9-2-2026-ryabov/ Fri, 31 Jul 2026 09:37:18 +0000 https://jfsi.ru/?p=8386

          N. S. Ryabov

Institute of North Industrial Ecology Problems of the KSC RAS

Akademgorodok, 14A, Apatity 184209, Russian Federation

 E-mail: n.ryabov@ksc.ru

Received 23.05.2026

Revised: 18.06.2026

Accepted: 22.06.2026

Global climate change, directly linked to continuously rising concentrations of greenhouse gases, necessitates the refinement and updating of our understanding of the climate-regulating role of forest ecosystems. Phytomass – including standing trees, undergrowth and understory, and forest floor vegetation – plays an important role in the global carbon cycle through its capacity to absorb atmospheric carbon and provide long-term carbon storage. This article provides a review of available data on phytomass and phytomass carbon stocks in spruce forests of Russia and several European countries. Using the Murmansk region as a case study, we examine the key characteristics and critical factors influencing the spatial distribution and formation of phytomass carbon pools. We further articulate the rationale for comprehensive research on the productivity and carbon allocation within the main phytomass pools of spruce phytocenoses.

Кeywords: carbon stocks, biomass, forest phytocenoses, spruce forests, northern taiga, Murmansk region, Arctic

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            N. V. Likhanova

Syktyvkar forest institute

Lenin st. 39, Syktyvkar, Komi Republic 167982, Russian Federation

 E-mail: lihanad@mail.ru

Received: 01.06.2026

Revised: 08.06.2026

Accepted: 10.06.2026

The presented work provides an assessment of the rate of decomposition of plant litter in middle-taiga spruce forests of the moist bilberry type and the polytric-sphagnum type, as well as in 4–6-year-old clear-cut areas in the Republic of Komi. The features of the component composition of plant litter and its chemical transformations during decomposition in spruce forests and clear-cut areas were studied. It was found that in spruce forests litter from woody plants predominates (76–84%), whereas in clear-cut areas there is a replacement of woody plant litter (11–12%) by litter from ground vegetation (88–89%). The total litter stock in clear-cut areas naturally decreases to 3.1–3.6 t ha^-1 year^-1. The chemical composition of litter shows species-specific characteristics. One-year-old spruce needles actively accumulate nitrogen, potassium, and phosphorus, while with increasing age the concentrations of calcium, silicon, manganese, and aluminum increase. Pine needles are characterized by higher potassium content and lower nitrogen and phosphorus content, and they are richer in calcium, silicon, manganese, and aluminum. Birch leaves exceed needles in the content of most macro- and microelements. Among ground vegetation species, bilberry (Vaccinium myrtillus) is characterized by high nitrogen and calcium content, herbaceous plants are characterized by higher potassium and silicon content, mosses – by potassium and magnesium content. The decrease in the content of key nutrient elements in plant litter at the final stages of ontogenesis reflects a slowdown in metabolic processes. It was noted that the chemical composition of spruce needles differs significantly depending on growing conditions (spruce forests vs. clear-cut areas), which may contribute to increased differentiation. The results show that, despite generally low mineralization rates, the decomposition of plant litter proceeds more intensively in cutting areas between skidding roads than in spruce forests. This is associated with altered abiotic conditions and the predominance of ground vegetation litter. The study reveals patterns of plant litter transformation in disturbed ecosystems and emphasizes the need for further research to fully understand the dynamics of organic matter decomposition and forest floor formation in clear-cut spruce forest areas.

Keywords: middle taiga, spruce forests, clear-cutting, plant residues, quality of litter, decomposition of litter

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]]> https://jfsi.ru/en/9-2-2026-gorbunovakorchagov/ Fri, 31 Jul 2026 08:36:44 +0000 https://jfsi.ru/?p=8361

          S. V. Gorbunova^*, S. A. Korchagov

   Northern Research Institute of Forestry

Nikitova st., 13, Arkhangelsk 163062, Russian Federation

^*E-mail: svetlana.bobushkina@sevniilh-arh.ru

Received 09.06.2026

Revised: 17.06.2026

Accepted: 22.06.2026

Low productivity, decline of resource and ecological potential of forests prompts to search for ways to overcome this state of the forest sector of the Russian Federation. One step in this direction is the intensification of reforestation. In our country, the use of containerized seedlings is increasing with artificial forest restoration. Despite some advantages of containerized planting stock over traditional, there is mixed feedback on the effectiveness of growing ball-rooted seedlings in various conditions. In addition, it is more expensive than seedlings with a bare root system. The purpose of the study is a comparative assessment of planting material for reforestation during the intensification of forest management. To achieve this, a bibliometric analysis was carried out, special attention was paid to the preservation, growth, condition of forest crops created from different types of planting material, as well as factors affecting these indicators in the regions of the country. The objects of pine forest cultures in the Arkhangelsk region were examined. The average diameter and height were determined, as well as the survivability and preservation of plantings created by various planting materials according to generally accepted methods. In Buryatia and the Altai Territory, chemotropism had a negative effect on the survival of containerized seedlings, and in Tatarstan, the heavy granulometric composition of soils. In the Kirov region, Belarus, and the Republic of Mari El, the values of survival and biometric parameters of forest crops from containerized seedlings and traditional ones are close. At the same time, in Karelia, on untreated soil, traditional seedlings were superior in all respects to plants with a closed root system, and on a site with prepared soil, ball-rooted seedlings were in the lead under the same conditions. In addition to the type of planting material, according to the results of research in the Altai Territory, the Republic of Buryatia, Tatarstan, Voronezh, Kirov regions, the Republics of Mari El and Karelia, a significant impact on the success of soil preparation crops, the quality of planting work and the planting material itself, climatic conditions, especially in the year of planting. Our research proves the above. In addition, the negative effects of vegetation growth with deciduous rocks, damage by herbaceous animals, snowman and snowball have been noted. Thus, when planning reforestation work in intensive forestry, a significant set of factors must be considered, contrary to the advantages of containerized seedlings over traditional ones, in extreme soil and weather conditions, its survivability can be significantly reduced.

Кeywords: forest crops, ball-rooted planting stock, seedlings, saplings, pine, intensification of reforestation

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]]> https://jfsi.ru/en/9-2-2026-baiturina_et_al/ Fri, 31 Jul 2026 08:17:04 +0000 https://jfsi.ru/?p=8358

R. R. Baiturina^*, L. R. Salimyanova, A. N. Khasanov

  Bashkir State Agrarian University
50-letiya Oktyabrya St., 34, Ufa 450001, Russian Federation

 ^*E-mail: aspirant_bsau@mail.ru

Received: 06.04.2026

Revised: 11.06.2026

Accepted: 19.06.2026

The article provides quantitative estimates of organic carbon stocks in the soils and forest litter of protective forests in the Republic of Bashkortostan. The aim of the study is to quantify carbon pools in soils and forest litter of the main forest-forming species in the region. The research objects were stands of the Dmitrievskoe and Ufa Forest Districts dominated by small-leaved lime, silver birch, aspen, Siberian larch and common ash. Field sampling and laboratory analysis revealed that soil organic carbon stocks range from 3.4 kg C m^–² (light gray forest soils) to 16.4 kg C m^–² (dark gray forest soils). Dark gray forest soils and chernozems accumulate more than 80% of the total carbon stock in the forest district. Forest soils accumulate 17.8% more carbon compared to similar soils in non-forested areas. Forest litter contributes significantly to the carbon balance: maximum stocks were recorded in larch stands (7.3 t C ha^-1), minimum – in ash-dominated stands (3.78 t C ha^-1). The removal of forest litter was experimentally proven to lead to a statistically significant decrease in humus content in the upper 10-cm layer by 34% and a twofold reduction in earthworm abundance. The study confirms the key role of forest ecosystems, especially mature forests on fertile soils, in carbon sequestration and emphasizes the need to preserve forest litter as a crucial component of the carbon pool. The obtained data are of practical importance for the development of regional forest management programs aimed at mitigating climate change impacts.

Keywords: soil organic carbon, forest litter, carbon balance, protective forests, urban forests, soil fertility, Republic of Bashkortostan, carbon sequestration.

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                L. V. Amiralieva, N. V. Genikova^*

 The Forest Research Institute of Karelian Research Centre of the Russian Academy of Sciences Pushkinskaya st. 11, Petrozavodsk, Republic of Karelia 185910, Russian Federation

^*E-mail: genikova@krc.karelia.ru

Received 05.05.2026

Revised: 11.06.2026

Accepted: 18.06.2026

This article presents the results of a study on the morphological parameters of common bilberry (Vaccinium myrtillus L.) and the content of photosynthetic pigments (chlorophyll a, chlorophyll b) in its leaves within plant communities at different stages of secondary succession after clearcutting (clearcut, maturing forest, overmature forest). The research was conducted in the middle taiga subzone. Forest edges, as transitional areas between clearcuts and maturing forests, were additionally investigated. On 19 sample plots, the measurements of illumination and photosynthetic photon flux density (PPFD) of photosynthetically active radiation (PAR) were carried out, bilberry projective cover was assessed, and the maximum shoot height was measured. The content of photosynthetic pigments in bilberry leaves was determined. The illumination and PAR levels, measured in clear and cloudy weather, decreased along the gradient: clearcut – forest edge – forest community. The lowest projective cover and shoot height of the dwarf shrub were recorded on the clearcut and forest edge, while the highest values were found under the forest canopy. The content of photosynthetic pigments (chlorophyll a, chlorophyll b) in bilberry leaves was minimal under the most illuminated conditions of the clearcut and forest edge and differed significantly from the conditions under the canopy of maturing and overmature forests.

Keywords: projective cover, shoot height, photosynthetic pigments, illumination, PAR, clearcut, forest edge

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