Dark Coniferous Forests Research Articles

Findings of Aquatic Vascular Plants on the Sakhalin Island

Investigations of South-western geobotanical district of Sakhalin Island, which is classified as a separate subzone of dark coniferous forests with an admixture of broad-leaved species and corresponds to Krillon floristic district, revealed a number of new aquatic vascular plant species for that area (Lemna turionifera, Myriophyllum verticillatum, Potamogeton gramineus, P. manchuriensis, Stuckenia pectinata, Utricularia minor, U. × ochroleuca). There is also a novelty for the South-Sakhalin lowland geobotanical district (Myriophyllum spicatum). All these taxa are known from other geobotanical districts of Sakhalin. The additions to the flora of the South-western district, which is well surveyed by botanists, indicate not floristic uniqueness of the subzone of dark coniferous forests with an admixture of broad-leaved species, but rather a poor knowledge of the Sakhalin Island aquatic flora.

Natural disturbance history regime and the development of the dark coniferous forest in the Southern Sikhote-Alin

Age shifts in fir–spruce forests and the potential influence of ongoing climate changes upon them are pressing issues. The study focuses on a stand of undisturbed fir–spruce forest located in the southern Sikhote-Alin at an altitude of 530 m a.s.l. A permanent sample plot was established there in 2001, and a revision was conducted in 2022–2023 with wood samples (cores) obtained. The research has revealed significant deviations in the stand development from the previously described pattern of age shifts in virgin fir–spruce forests. Firstly, it was established that there have been no major stand disturbances over the last 242 years, and only minor ones occurring in 1831–1850 and 1931–1950 were identified. About 50% of Jezo spruce trees survived at least 2 minor disturbances during their development. Secondly, it is shown that Jezo spruce does not form a single-age generation within the studied stand. It was also found that at the time of revision, the stand was in a situation preceding a new stand disturbance. An important result obtained is that a stable trend of decreasing growth has been observed in 75% of Jezo spruce trees since 2001. This trend might not be associated with age shifts within the stand but could be attributed to the spruce’s response to global climate changes. Such a trend could significantly impact the age shifts in fir– spruce forest stands.

Modern Abies, Picea, and Tsuga pollen distribution along the elevation gradient in East Asia

Sub-alpine dark coniferous forests (SCFs) exhibit distinct latitudinal and longitudinal elevation distributions in East Asia. The SCF genera Abies, Picea, and Tsuga produce distinctive pollen and have specific elevation and climate requirements, allowing for the reconstruction of paleo-climatic and paleo-elevational changes from fossil pollen sequences. However, the relationship between SCF elevational distribution and the percentage of coniferous pollen has not been elucidated at the continental scale. In this study, we determined the relationship between Abies, Picea, and Tsuga pollen percentages and SCF elevation distributions in East Asia using an integrated pollen dataset comprising 4863 modern samples. The total percentage of these pollen types showed bimodal patterns with elevation and unimodal patterns with climate. Maximum pollen percentages occurred at elevations of 0–1000 and 2000–4600 m, mean annual temperatures of −5–10 ℃, and mean annual precipitation values of 100–1500 mm. The elevation with the highest proportion of Abies + Picea + Tsuga pollen increased with decreasing latitude: from 500 m (>43°N) to 2300 m (37–43°N), to 3500 m (30–37°N), and to 4000 m (18–30°N). Elevation also exhibited non-monotonic variations with longitude, first increasing from 2500 m (<93°E) to 3500 m (93–102°E), and then decreased to 2500 m (102–113°E) and 500 m (>113°E). The spatial patterns of Abies, Picea, and Tsuga pollen abundance were closely correlated with modern SCF distributions, which are largely modulated by climate and elevation. This study lays the foundation for reconstructing paleo-climate and paleo-elevation variations across East Asia.

Phylotranscriptomic and ecological analyses reveal the evolution and morphological adaptation of Abies.

Coniferous forests are under severe threat of the rapid anthropogenic climate warming. Abies (firs), the fourth-largest conifer genus, is a keystone component of the boreal and temperate dark-coniferous forests and harbors a remarkably large number of relict taxa. However, the uncertainty of the phylogenetic and biogeographic history of Abies significantly impedes our prediction of future dynamics and efficient conservation of firs. In this study, using 1,533 nuclear genes generated from transcriptome sequencing and a complete sampling of all widely recognized species, we have successfully reconstructed a robust phylogeny of global firs, in which four clades are strongly supported and all intersectional relationships are resolved, although phylogenetic discordance caused mainly by incomplete lineage sorting and hybridization was detected. Molecular dating and ancestral area reconstruction suggest a Northern Hemisphere high-latitude origin of Abies during the Late Cretaceous, but all extant firs diversified during the Miocene to the Pleistocene, and multiple continental and intercontinental dispersals took place in response to the late Neogene climate cooling and orogenic movements. Notably, four critically endangered firs endemic to subtropical mountains of China, including A. beshanzuensis, A. ziyuanensis, A. fanjingshanensis and A. yuanbaoshanensis from east to west, have different origins and evolutionary histories. Moreover, three hotspots of species richness, including western North America, central Japan, and the Hengduan Mountains, were identified in Abies. Elevation and precipitation, particularly precipitation of the coldest quarter, are the most significant environmental factors driving the global distribution pattern of fir species diversity. Some morphological traits are evolutionarily constrained, and those linked to elevational variation (e.g., purple cone) and cold resistance (e.g., pubescent branch and resinous bud) may have contributed to the diversification of global firs. Our study sheds new light on the spatiotemporal evolution of global firs, which will be of great help to forest management and species conservation in a warming world.

ОСОБО ОХРАНЯЕМЫЕ ПРИРОДНЫЕ ТЕРРИТОРИИ В КОНТЕКСТЕ ГОРОДСКОГО ПЛАНИРОВАНИЯ ГОРОДА ПЕРМИ: ФУНКЦИИ И ПРОБЛЕМЫ

This article is a study using GIS technologies aimed at assessing and analyzing changes in the areas of types of plant communities under the influence of oil and gas industry facilities on the island. Sakhalin.&#x0D; Purpose (Object): The purpose of this study is to assess the degree of change in the areas of types of plant communities under the influence of oil and gas indus-try facilities on the island. Sakhalin.&#x0D; Methods: Methodology for assessing changes in the areas of plant communi-ties under the influence of oil and gas industry facilities on the island. Sakhalin in-cludes 7 stages, consisting of spatial reference of a raster image (vegetation map of the island) to a base map, as well as the subsequent creation of polygonal objects based on the received data and conducting spatial analysis in ArcGIS software. The final stage involves determining the degree of change using specified criteria.&#x0D; Findings: Most of the types of plant communities on Sakhalin Island belong to the conditionally unmodified class with the percentage of the territory occupied by oil and gas industry facilities less than 0.5%. We assigned the following types of plant communities to this class: white birch-larch grass-shrub forests in place of dark coniferous forests (0.00%); reed grass communities in place of green moss and grassy dark coniferous forests (0.17%); etc. The weakly modified class in-cludes 4 types of communities: larch mid-taiga lichen forests with dwarf cedar (0.75%); thickets of wild rosemary in place of larch green moss-ledum forests (0.74%); larch mid-taiga green moss-ledum forests (0.69%); thickets of dwarf ce-dar and alder (0.59%). None of the existing types of plant communities on Sakhalin Island belongs to the moderately or highly modified class, since the area of land occupied by oil and gas industry facilities does not exceed 2%.&#x0D; Conclusions: Assessment of the degree of change in areas occupied by various types of plant communities under the influence of oil and gas industry facilities on the island. Sakhalin makes it possible to determine the most disturbed types of communities and classify them according to the degree of change.&#x0D; This information is useful in view of the relevance of the issue of environmental pollution by oil and gas industry facilities, as well as from the point of view of the possibility of developing measures to protect and protect the environment. In addi-tion, based on the data obtained, it is possible to predict further changes in the de-velopment of Sakhalin shelf projects and the construction of new onshore infra-structure.

Effects of an Invasive Bark Beetle Polygraphus proximus Blandf. Outbreak on Carbon Pool Dynamics in West Siberian Dark Coniferous Forests

Invasions of dendrophagous insects pose major threats to forest ecosystems and to the timber industry. The alien species bark beetle Polygraphus proximus Blandf. of Far Eastern origin has caused Siberian fir dieback in vast areas within several regions of Russia. Rapid spread of the pest and its outbreaks raise the issue of preserving the most important functions, including carbon sequestration, by the damaged forests. In this study, monitoring of carbon pool dynamics was carried out during 2012–2023 on four sample plots showing various degrees of damage in the southern taiga zone of Western Siberia in the Larinsky Landscape Reserve. Dynamics of the forest stands’ vitality were reflected in a rapid decline of the number of viable trees and an increase in amounts of deadwood, debris, and soil composition, resulting in a transformation of the natural biological carbon cycle in the native dark coniferous ecosystems.

Ulcerative tumour-like disease of white fir in the Pokuttia Carpathians

The current state of dark coniferous forests on Earth is a bio-indicator of global environmental change, in particular, the process of gradual degradation of tree species of the genera Pine, Spruce and Fir, due to the negative impact of anthropogenic activities, abiotic and biotic factors. The purpose of the study is to establish the symptoms, prevalence and harmfulness of the causative agent of ulcerative tumour-like disease on the shoots and trunks of white fir. The research was conducted on the territory of the forest fund of the Pokuttia Carpathians, in particular, within the branch Kutske forestry of the State Specialised Economic Enterprise “Forests of Ukraine” in the Kosivske forest enterprise. The study uses classical phytopathological and mycological methods, which are used to investigate the aetiology of the disease, analyse typical symptoms (starting from the early stages), and perform microscopy of the affected parts of fir. The symptoms, aetiology, and pathogenesis of white fir ulcer-like disease, which tends to spread, were investigated. A new name for the disease is substantiated, in particular, it is proposed to use the name “ulcerative tumour-like disease” of fir instead of the current name “cancer”. It is shown that a typical sign of infection is the development of tumours, which eventually transform into ulcers. It was found that the tumour-like type of lesion prevails on the undergrowth of fir, and on plants of the upper tiers – ulcerative. It is noted that a typical sign of ulcerative tumour-like disease of white fir is also the presence of pathologies such as “witches’ broom”. It is proposed to remove affected trees with typical signs of infection with ulcerative tumour-like disease to reduce the infectious background, especially during lighting and cleaning, since affected trees are not released from infection. Therefore, assessing the risk of infection of white fir trees with ulcerative tumour-like disease at the level of specific stands and ensuring an appropriate response to potential infection risks is an important part of sustainable forest management

Forest vegetation of the national park “Koigorodsky” (Komi republic)

The Koygorodsky National Park was organized by the Resolution of the Government of the Russian Federation dated 07.12.2019. The area is 56.7 thousand hectares. Organizers of the Koygorodsky National Park hypostasized that in the Southern part of Komi Republic where the Park was located spruce and fir forests with nemoral occurred. They also hypostasized also that the forests of Koygorodsky National Park existed for a long period in the conditions of natural dynamics. The purpose of the article is to test these hypotheses. The National Park is located in the eastern part of the East European Plain near the border between meddle and southern subzones of taiga zone. The relief on the most part of the reserve is formed by the edges of the Northern Uvals The first data on the forest vegetation and flora of vascular plants of the Koigorodsky National Park, which has not been studied botanically before, have been obtained. 12 plant associations from five formations of dark coniferous (spruce, fir), light coniferous (pine) and small-leaved (aspen, birch) forests were identified in the classification of forest vegetation of the Koygorodsky National Park. Spruce forests occupy a fairly wide range of sites, were represented by three groups of associations: green-moss, herb-rich and bog moss, and occurred mainly to river valleys and wetlands of the watershed. Aspen forests were represented by green-moss and herbaceous communities and occupied most of the territory of the National Park. Birch, pine and fir forests occupied small areas. The predominance of secondary small-leaved aspen and birch forests in the territory of the National Park refutes the hypothesis that its forests existed for a long time without human influence. At the same time, the hypothesis about the presence of communities with a high proportion of nemoral species in the Koygorodsky National Park was confirmed.

First record of Parmelia asiatica (Parmeliaceae, Ascomycota) in Europe

The lichen Parmelia asiatica (Parmeliaceae), described in 2011 from China (Yunnan province), is reported for the first time in Europe, in European Russia. Since 2013, the species has been recorded in the Russian Far East and Baikal Siberia. The majority of the records are in Protected Areas located in regions with a humid climate, where the preferred habitats are mainly foothill/mountain, humid, mixed or dark coniferous old-growth forests. A critical analysis of the herbarium specimens from the Kerzhensky State Nature Reserve (Nizhny Novgorod Region, Russia) collected by the authors in 2020 allowed us to identify a specimen as Parmelia asiatica. Before this study, only six species of the genus Parmelia were known in European Russia. The present paper contains data on the new record of P. asiatica, its morphology, the species distribution range, and its ecology. The diversity of data collected in Russian state nature reserves (including the new record) proves the need and importance of studying the lichen flora of these territories, since they represent the best-preserved, rare and unique habitats. In particular, the Kerzhensky State Nature Reserve is believed to be located near the contact zone between European and Siberian vascular and lichen flora, which is also confirmed by the here reported record of P. asiatica.

NDVI ТЕМНОХВОЙНЫХ ЛЕСОВ НИЖНЕГО ПРИАМУРЬЯ

Using remote sensing data, the authors have carried out the NDVI assessment of dark coniferous forests in the Lower Amur region. The forests NDVI increases when moving from the northwest and east of the region to its central part, from north to south, and with decreasing altitude. Minimum NDVI values (0.437–0.719) are typical for the northwestern part of the region, maximum (0.743–0.849) – the southern, medium (0.719–0.743) – the eastern, medium and high (0.719–0.768) – the central, high (0.743–0.768) – the western ones.

The confinedness of undergrowth Picea obovata and Abies sibirica (Pinaceae) to tree-related microhabitats and their development features at various phases of post-fire succession in green-moss dark coniferous forests in the Northern Pre-Urals

Forest ecology frequently explores the role of microsite mosaics in forest communities for the regeneration of forest-forming tree species. The present study aims to find out whether the ontogenetic structure and differentiation of Siberian spruce (Picea obovata) and Siberian fir (Abies sibirica) undergrowth plants by the plant vitality are associated with their occurrence on various microsites. The study has been carried out in the Pechora-Ilych State Nature Biosphere Reserve, Russia. In green-moss fir-spruce forests, 23 temporary sample plots were established, including 1) forest communities of the intermediate phase of post-fire succession (in areas where fires happened in 1850–1900) and 2) forest communities of the late phase (in areas where there were no fires, at least since the mid-XIX century). On the study plots, P. obovata and A. sibirica undergrowth individuals were recorded indicating ontogenetic state, vitality and microsite substrate for each plant. Using the Z-criterion, a comparison of the occurrence frequencies (%) of various undergrowth groups of P. obovata and A. sibirica on various microsites has been carried out, i.e. within each species and between the studied species, as well as at each phase of post-fire succession and between the phases. The analysis showed that, in communities of both succession phases in both species, undergrowth plants of ontogenetic state im2 occurred on deadwood logs less frequently than the undergrowth plants of the earlier ontogenetic state im1. At the same time, in both species on the flat ground surface an opposite occurrence trend for these ontogenetic states was revealed. In communities of the late succession phase, A. sibirica undergrowth plants of the ontogenetic state im2 and normal vitality occurred on a flat ground surface within inter-crown sites more frequently than plants of reduced and low vitality. A comparison between the species showed that in forest communities of both succession phases, A. sibirica undergrowth plants of im1 and im2 ontogenetic states more frequently occupy flat ground surface than deadwood logs, whereas P. obovata undergrowth plants more frequently grow on deadwood logs than on the flat ground surface. In addition, in communities of the intermediate succession phase, A. sibirica undergrowth is more likely than P. obovata to be found in the under-crown sites (especially on a flat ground surface). In communities of the late succession phase, A. sibirica undergrowth more often grows in under-crown sites on the near-trunk elevations of living trees. In both species, 40–50% of im2 plants of low vitality grow in inter-crown sites. To clarify the influence of the microsite mosaics on the regeneration processes in the studied forests, more detailed and large-scale studies are further needed, which will allow us obtaining more representative samples of undergrowth plants at various ontogenetic states.

The state of the dark coniferous forests in the foothills of the Eastern Sayan after a pest invasion

An assessment was conducted on the health of dark coniferous stands in the Biryusinskoe forestry. The study is of great significance in light of the environmental degradation caused by the invasive four-eyed fir bark beetle (Polygraphus proximus Blandford). The findings revealed that the firdominated stands are severely weakened or dying in the study area. The decline and dieback of fir stands are primarily caused by the invasive foureyed fir bark beetle and other negative impacts. The text discusses the main factors contributing to this issue. The data obtained indicate that Alekseev's method of assessing forest health provides a more detailed and accurate description of the state of forests.

Long-term dynamics of forests with Pinus sibirica in the upper reaches of the River Kolva (Northern Pre-Urals, Russia) from 1938 to 2023

Forest ecosystems have been impacted by human activity over several millennia in a variety of ways. Previous land use activity has not only changed the ratio of various terrestrial ecosystems, but also influenced the distribution of tree species. The insight into the forest species composition, dynamics and revealing how it differs from the modern one should be of decisive importance for the identification and conservation of the most valuable forests, as well as the restoration of ones previously disturbed. The density and distribution of some species continues to decline rapidly due to the anthropogenic activity. This problem is most urgent in boreal forests, formed by a limited set of tree species. Studies of the long-lived tree species dynamics and their ability to restore after various types of disturbances deserve special attention. Based on analysis of forest management materials from 1938 and 2023, this paper was aimed to analyse the dynamics of forests with the participation of Pinus sibirica in the Northern Pre-Urals (Permsky Krai, Russia), on the western border of the species' natural range. In 1938, the forests with Pinus sibirica occupied 16.6% of all forests in the research area. In 1938, most forests with Pinus sibirica (64%) were forests, in which P. sibirica was represented by only 1–5% of the stock. Pinus sibirica-dominated forests were almost absent, with only one site with 60% dominance of P. sibirica, and five sites with 40% dominance of P. sibirica. Over the next 85 years, the area of forests with Pinus sibirica participation in the research area has decreased by 2.5 times due to the impact of clear cuttings and forest fires. By 2023, the ratio of forest areas with various proportions of Pinus sibirica participation had changed considerably. The highest changes were found in forests with Pinus sibirica participation of 1%, 5% and 20% of the stock. Analysis of the typological structure of forests showed that at present Pinus sibirica has survived only in natural dark-coniferous forests, which have not been affected previously by forestry activities and fires. Due to the exceptionally slow regeneration following fires and logging activities, Pinus sibirica is absent in the forests formed over the studied period. The current federal legal restrictions prove ineffective as they target the preservation of forest stands containing over 30% of Pinus sibirica, while the majority of forests in the study area contain less proportion of this species. We believe that it is necessary to develop uniform measures to preserve existing and restore the lost Pinus sibirica populations in the Komi Republic and the Permsky Krai, including the prohibitions on the logging of forests with any proportion of Pinus sibirica as well as the creation of P. sibirica forest plantations.

Complex field survey of the Tyatinskiy part of the “Kurilskiy” state nature reserve, Kunashir island, Kuril islands

The study describes the results of field expeditionary research conducted by the authors on the territory of the Tyatinskiy cluster of the “Kurilskiy” state nature reserve (Kunashir island, the Great Kuril Ridge). The nature of the island is distinguished by its bright originality and is interesting for research both from the point of view of increasing the tourist, recreational and education attractiveness, and from the point of view of the implementation of environmental activities. During the research, a study of soils, vegetation cover and some climatic characteristics of the territory was carried out. It was revealed that the soils of the study area are mainly soils that combine the features of brown soils and volcanic soils; local plant communities are represented mainly by dark coniferous forests with a rich and varied admixture of broad-leaved species in the forest stand, the absence of pronounced undergrowth, a diverse grass-shrub canopy and a well-developed moss-lichen layer.

Reconstruction of the Dynamics of Dark Coniferous Forests of Teberdinskii Nature Reserve and Prospects for Their Natural Recovery after Mass Drying-Out

Reconstruction of the Dynamics of Dark Coniferous Forests of Teberdinskii Nature Reserve and Prospects for Their Natural Recovery after Mass Drying-Out

The Spatio-Temporal Dynamics of Mountain Dark Coniferous Forests in the South of Priyenisei Siberia in the Сlimate Change

The Spatio-Temporal Dynamics of Mountain Dark Coniferous Forests in the South of Priyenisei Siberia in the Сlimate Change

THE STATE AND DYNAMICS OF THE BORDERS OF CEDAR FORESTS AT THE WESTERN TANNU-OLA RANGE IN THE TYVA REPUBLIC

The paper presents the recent response of dark coniferous forest and cedar undergrowth in the forests of the Western Tannu-Ola Range to the observed climate change in the region. According to the nearby Chadan meteorological station, the anomaly of the average annual air temperature was 1,6 ± 0,8°С, the anomaly of the growing season was 1,0 ± 0,7°С. Key study areas are located in the Tyva Republic within 50°55′-51°15′N and 91°30’-92°20’E, which corresponds to three altitudinal levels: the lower belt of the middle mountains (1100-1300 m a.s.l.) bordering the steppe and covered with larch forests with birch; the middle belt of the middle mountains (1300-1800 m a.s.l.) covered with larch and cedar forests; larch and cedar forests of the upper belt of the middle mountains (1800-2120 m a.s.l.). In the course of field work, the increment of the top shoot of cedar sapling (Pinus sibirica Du Tour) was measured, as well as its height, age and total number. Correlations between the increment, air temperature and relative humidity were quantitatively determined using data from the Chadan weather station for a number of years. The results indicate a positive correlation with humidity in the lower zone of the middle mountains and with air temperature in the upper zone of the middle mountains. Higher amounts of cedar sapling in the lower zone of the middle mountains and in the upper zone of the middle mountains confirm the shift of dark coniferous forests down and up the ridge under the regional climate warming. Space images of Landsat TM/ETM+/OLI show the increasing values of NDVI and NDWI vegetation indices. According to satellite images, an increase in the area of dark coniferous forests over the past decades was calculated for the territory of key areas; however, the reliability of these data was not evaluated statistically. The work needs to be continued in the field.

RESIDENTS AND NON-RESIDENTS: DAILY ACTIVITY OF SMALL MAMMALS IN CONTRASTING BIOTOPES

Using the marking and recapture method, we compared the daily activity of four common species of small mammals of the forest zone in three biotopes that differ greatly in their protective properties. Lines of live traps were installed in a dark coniferous forest, on a grassy slope and along a rocky beach along the water's edge on the river. Ilych. The activity of resident and non-resident individuals was assessed with a frequency of checks every 1.5 hours. In the forest, polyphasic activity without pronounced maxima was noted for all species; on the open slope, the maximum activity of resident animals occurred at night, and on the shore only non-resident animals were observed. Non-resident activity in all biotopes is shifted to the night, while in open biotopes the period of activity is shorter and more associated with the dark time of day.

CENOTIC ROLE OF INFECTIOUS DISEASES IN ABIES SIBIRICA LEDEB. STANDS IN THE SOUTH CENTRAL SIBERIA

Background. Degradation of Abies sibirica Ledeb.-dominated forests in the South Central Siberia is a reflection of the global trend of coniferous forest ecosystems decline. Nevertheless, the role of infectious diseases in coniferous forests degradation and dieback is often underestimated.&#x0D; Research aim. To assess the coenotic role of infectious diseases in fir-dominated stands in the South Central Siberia, considering the differentiation in trees.&#x0D; Materials and methods. The research was based on a survey of A. sibirica-dominated forest stands growing in Biryusinsky forest management unit of the Krasnoyarsk Krai government-owned publicly funded “Emelyanovskoye forestry”. Research methods included a detailed (instrumental) forest pathological examination, macroscopic diagnostics of tree diseases, graph analytics and statistical analysis of tree diameter distribution series, evaluation of disease manifestation indicators.&#x0D; Results. Stem rot and fir broom rust are typical diseases increasing the risk of windsnap and trees weakening. The prevalence of fir broom rust was over 10%. Rust fungus intermediate hosts in the forest floor determine the degree of damage to a stand. Fir broom rust randomly affected trees of different age and diameters. The bacterial blight in fir forests mainly affected trees of I-II Kraft classes causing their gradual dying. The bacterial blight in the study area was of low infection degree (up to 20%). The most dangerous was the root rot caused by Armillaria mellea s.l. that affected trees of different cenotic roles causing their group dieback.&#x0D; Conclusion. Dendropathogenic organisms are an important endogenous factor influencing the state of dark coniferous forests with a predominance of A. sibirica in the South Central Siberia. Their cenotic role is unequal. The most significant are pathogens causing necrosis and cancer diseases, and especially the root pathogen A. mellea, which leads to weakening and dying of a large number of trees of different status in the stand structure.

Soil properties and plant diversity co-regulate ecosystem multifunctionality of subalpine primary dark coniferous forest on the eastern Qinghai-Tibetan Plateau

Soil properties and plant diversity co-regulate ecosystem multifunctionality of subalpine primary dark coniferous forest on the eastern Qinghai-Tibetan Plateau