scholarly journals Ecological-coenotic characteristics of Cantharellus cibarius Fr. and its tolerance to human impact in southern taiga and sub-taiga forests of the Kirov Region

2020 ◽  
Vol 9 (2) ◽  
pp. 115-120
Author(s):  
Anastasia A. Sorokina ◽  
Ecaterina A. Luginina
Keyword(s):  
Human Impact ◽  
Southern Taiga ◽  
Pine Forests ◽  
Temperate Climate ◽  
Green Moss ◽  
Ecological Preferences ◽  
Crown Density ◽  
Average Share ◽  
Southern Taiga Subzone ◽  
Taiga Forests

The paper analyzes plant communities with Cantharellus cibarius Fr. in southern taiga and sub-taiga forests in the Kirov Region. Golden chanterelle occurs mostly in pure pine forests and pine forests mixed with spruce and birch of green-moss, lichen and cowberry types in young to maturing stands; the crown density is low or medium. Species richness of herbaceous-shrub storey in the studied communities varied from 5 to 29. The ecological preferences of C. cibarius, defined with Ellenberg (1974) scales, allow to characterize the species in the following way: temperate climate species, shade-resistant, rarely found in conditions of total shading; mesophyte regarding soil humidity, prefers acidic soils with low nitrogen, but, as an exception, marked on neutral soils rich in nitrogen. The differences in the species ecological preferences in conditions of southern taiga and sub-taiga are insignificant. The hemeroby index varied from 0,05 to 0,33 for the studied communities. The average share of species tolerant to human impact was 13,23%, and the share of anthropophobic species 86,77%. These data characterise C. cibarius as the species capable of tolerating moderate human impact in southern taiga subzone, but being less tolerant to human impact in sub-taiga areas and coniferous-broadleaved forests.

SCIENTIFIC RESEARCH IN THE VISIM NATURE RESERVE: FROM THE VISIM RESERVE TO THE BIOSPHERE RESERVE

2021 ◽  
Author(s):  
M.Y. FEDOROV ◽  
◽  
I.A. KUZNETSOVA ◽  
Keyword(s):  
Nature Reserve ◽  
Historical Analysis ◽  
Biosphere Reserve ◽  
Metallurgical Industry ◽  
Southern Taiga ◽  
Joint Research ◽  
Educational Tourism ◽  
Nature Preservation ◽  
Recreational Pressure ◽  
Taiga Forests

This article presents a historical analysis of human impact and further step-by-step nature reserve creation within the territory of the current Visimsky State Biosphere Reserve. From the end of XVII to the middle of XX centuries the ecosystem of low-mountain southern taiga forests in the Middle Ural region was strongly exploited by a local mining and metallurgical industry. The establishment of the Visim State Reserve in 1946 did not provide sustainable results but initiated research studies that laid a foundation for a subsequent preservation and the studies of the endemic taiga forests of the Middle Ural in the framework of the modern Visimsky State Biosphere Reserve. Since 1975 the science department of the reserve has conducted regular observations of the nature processes. The reserve has established long-term and efficient collaboration with the Institute of Ecology of Animals and Plants, Ural Branch of the Russian Academy of Sciences. The joint research findings are used in practical solutions of the nature preservation in the region. This collaboration is also focused on the monitoring of the recreational pressure caused by the educational tourism.

Water-Soluble Components in Soils of Heterolithic Conjugate Landscapes in the Southern Taiga Subzone

2021 ◽  
Vol 76 (1) ◽  
pp. 1-10
Author(s):  
L. G. Bogatyrev ◽  
A. I. Benediktova ◽  
M. M. Karpukhin ◽  
V. M. Telesnina ◽  
N. I. Zhilin ◽  
...  
Keyword(s):  
Southern Taiga ◽  
Water Soluble ◽  
Southern Taiga Subzone ◽  
Soluble Components

scholarly journals Rocky pine forests in the High Coast Region in Sweden: structure, dynamics and history

2020 ◽  
Vol 38 ◽  
pp. 101-130
Author(s):  
Jennie Sandström ◽  
Mattias Edman ◽  
Bengt Gunnar Jonsson
Keyword(s):  
Human Impact ◽  
Fire History ◽  
Dead Wood ◽  
Forest Type ◽  
Basal Area ◽  
Pine Forests ◽  
Small Scale ◽  
Natural Dynamics ◽  
Almost All ◽  
High Degree

Almost all forests in Sweden are managed and only a small fraction are considered natural. One exception is low productive forests where, due to their limited economical value, natural dynamics still dominate. One example is the Scots pine (Pinus sylvestris L.) forests occurring on rocky and nutrient-poor hilltops. Although these forests represent a regionally common forest type with a high degree of naturalness, their dynamics, structure and history are poorly known. We investigated the structure, human impact and fire history in eight rocky pine forests in the High Coast Area in eastern Sweden, initially identified as good representatives of this forest type. This was done by sampling and measuring tree sizes, -ages, fire-scarred trees, as well as dead wood volumes and quality along three transects at each site. The structure was diverse with a sparse layer of trees (basal area 9 m2 and 640 trees larger than 10 cm ha-1) in various sizes and ages; 13 trees ha-1 were more than 300 years old. Dead wood (DW), snags and logs in all stages of decay, was present and although the actual DW (pine) volume (4.4 m3 ha-1) and number of units (53 ha-1) was low, the DW share of total wood volume was 18% on average. Dead wood can be present for several centuries after death; we found examples of both snags and logs that had been dead more than 300 years. Frequent fires have occurred, with an average cycle of 40 years between fires. Most fires occurred between 1500-1900 and many of them (13) during the 1600s. However, fires were probably small since most fire years were only represented at one site and often only in one or a few samples. The rocky pine forests in the High Coast Area are representative of undisturbed forests with low human impact, exhibiting old-growth characteristics and are valuable habitats for organisms connected to sun-exposed DW. Management of protected rocky pine forests may well include small-scale restoration fires and the limited DW volumes should be protected.

Changes in Ecological Features of Soils after Controlled Fires in Forests Defoliated by the Siberian Moth in the Southern Taiga Subzone of the Yenisei Region, Siberia

2004 ◽  
Vol 31 (3) ◽  
pp. 310-318 ◽  
Author(s):  
Yu. N. Krasnoshchekov ◽  
E. N. Valendik ◽  
I. N. Bezkorovainaya ◽  
N. D. Sorokin ◽  
V. V. Kuz'michenko ◽  
...  
Keyword(s):  
Southern Taiga ◽  
Ecological Features ◽  
Siberian Moth ◽  
Southern Taiga Subzone

scholarly journals Polygon «Ural-carbon» (Severka)

2021 ◽  
pp. 4-14
Author(s):  
С.В. Залесов ◽  
В.В. Фомин ◽  
Е.П. Платонов ◽  
Г.А. Годовалов ◽  
К.А. Башегуров ◽  
...  
Keyword(s):  
Pinus Sylvestris ◽  
Betula Pendula ◽  
Southern Taiga ◽  
Average Density ◽  
Forest Stands ◽  
Betula Pendula Roth ◽  
Wide Range ◽  
Southern Taiga Subzone ◽  
Growing Conditions ◽  
Mature Stands

На основе баз данных лесорастительных материалов проанализированы таксационные показатели насаждений, произрастающих на территории карбонового научно-исследовательского по- лигона, расположенного в Уральском учебно-опытном лесхозе (УУОл) Уральского государственного лесотехнического университета (УГлТУ). Отмечается, что основными лесными формациями на поли- гоне являются сосняки и березняки. Доля насаждений с доминированием в составе древостоев других пород-лесообразователей невелика. Помимо сосны обыкновенной (Pinus sylvestris L.) и березы повислой (Betula pendula Roth.), другие виды произрастают, как правило, в примеси с указанными. Среди дре- востоев преобладают среднеполнотные спелые и перестойные насаждения. большинство древостоев характеризуется относительно высокими классами бонитета. Насаждения, произрастающие на террито- рии полигона, относятся к 13 типам леса, что свидетельствует о разнообразии лесорастительных усло- вий. В целом можно отметить, что видовое разнообразие древесных пород и лесорастительных условий на карбоновом научно-исследовательском полигоне УУОл УГлТУ обеспечивает возможность изучения широкого спектра вопросов депонирования углерода лесными экосистемами в условиях подзоны южной тайги Урала. The taxation indicators of plantations growing on the territory of the carbonic research polygon located in the Ural educational experimental forest enterorize (UEEF) of the Ural State Forest Engineering University were analyzed on the base of the forestry materials database. It is noted that the main forest formations on the polygons are pine and birch forest stands. The share of stands with other species of forest formers dominating in composition of forest stands is small. In addition to scots pine (Pinus sylvestris L.) and silver birch (Betula pendula Roth.), other species usually grow in admixtures with the specified. Among the stands mature and over mature stands of average density prevails. Most of the stands are characterized by relatively high bonitet classes. Plantations growing on the territory of the polygon belong to 13 types of forest, which indicates a variety of forest growing conditions. In general, it can be noted that the species diversity of tree species and forest growing conditions at the carboniferous research sity (UEEF) provides an opportunity to study a wide range of problems of carbon deposing forest ecosystems in conditions of the Southern Taiga subzone in the Urals.

scholarly journals Many-year Fluctuations of River Runoff in South-taiga Subzone of the Western Siberia

2013 ◽  
pp. 34-45
Author(s):  
Keyword(s):  
Western Siberia ◽  
River Flow ◽  
Atmospheric Precipitation ◽  
Southern Taiga ◽  
Low Flow ◽  
Groundwater Levels ◽  
Level Regime ◽  
Southern Taiga Subzone ◽  
Bog Water

A detailed analysis of river flow long-term changes in the Southern taiga subzone of Western Siberia has been carried out with the Chaya River basin as an example. Causal statistical analysis of changes in groundwater levels, bog water level, air temperature and atmospheric precipitation has been performed. The conducted studies revealed a statistically significant trend in the increase of surface runoff in the winter low flow of the Chaya River and its large tributaries (the Iksa and the Parbig), as well as the underground runoff component for virtually the entire year. An ambiguous regularity has been observed in the change of the level regime of rivers. The main reason for the observed changes in the water regime of the said territory is the redistribution of atmospheric moisture and shifting of the boundaries of hydrological seasons.

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