scholarly journals СОДЕРЖАНИЕ КАДМИЯ В ПОЧВЕ И БИОЛОГИЧЕСКИХ ОБЪЕКТАХ В УСЛОВИЯХ ЛЕСНЫХ ЭКОСИСТЕМ ПРИВОЛЖСКОЙ ВОЗВЫШЕННОСТИ В ПЕНЗЕНСКОЙ ОБЛАСТИ

2020 ◽  
Vol 12 (3) ◽  
pp. 41
Author(s):  
М.И. Андреева ◽  
А.И. Иванов ◽  
Д.Г. Смирнов
Keyword(s):  
Forest Soils ◽  
Vascular Plants ◽  
Quantitative Assessment ◽  
Forest Ecosystems ◽  
Life Forms ◽  
Forest Resources ◽  
Forest Vegetation ◽  
Ecological Groups ◽  
Gray Forest Soils ◽  
Volga Upland

The article presents the results of research on the content of cadmium in gray forest soils located under forest vegetation in the conditions of the Volga upland within the Penza region. A quantitative assessment of the accumulation of this metal in the organisms of mushroom, vascular plants, mosses, lichens and invertebrates is given. The analysis of features of accumulation of this element by representatives of various ecological groups and life forms of these organisms is carried out. The problem of influence of forest resources use on the content of cadmium in forest ecosystems is considered.

SOIL CONDITIONS OF FOREST VEGETATION GROWTH OF NORTHERN VOLGA

10.12737/3822 ◽  
2014 ◽  
Vol 9 (1) ◽  
pp. 112-116
Author(s):  
Жубрин ◽  
Denis Zhubrin ◽  
Сабиров ◽  
Ayrat Sabirov
Keyword(s):  
Forest Soils ◽  
Forest Ecosystems ◽  
Biological Diversity ◽  
Basic Research ◽  
Economic Assessment ◽  
Forest Vegetation ◽  
Soil Conditions ◽  
Vegetation Growth ◽  
Wide Range ◽  
The Impact

Conducting soil studies are relevant in determining the subordination of forest types and biodiversity of vegetation to soil taxa, in determining the dependence of basic forest stand productivity from soil conditions, in creating a land registry and economic assessment of forest land, in studying the soil evolution of forest plantations under the impact of anthropogenic influences. Soil is the most important environmental factor in shaping the productivity and biodiversity of forest phytocenosis. The study of forest soils is also important in terms of basic research of their genesis, evolution. The article presents the results of research of soil conditions of vegetation growth of forest ecosystems of northern regions of Volga of the Republic of Tatarstan. The main types of forest soils are characterized in the paper. The studied forest formations grow on various soils on genesis and forest vegetation properties: sod-podzol, gray forest, brown forest, brown forest sandy, alluvial meadow, rendziny soil. The granulometric structure of soils varies from sandy to the clay. The well structured soils are formed on loamy layers under forest phytocenosis canopy. Pine and spruce ecosystems have a medi-decomposed litter of moder and multi-moder types; linden, oak, birch and aspen biogeocoenoses have strong-decomposed litter of multi type, that characterizes the intense biological cycle of substances in forest ecosystems. The wide range of place conditions of territories causes the biological diversity of forest vegetation at the level of species and ecosystems.

Quantitative assessment of radiocaesium bioavailability in forest soils

2000 ◽  
Vol 88 (9-11) ◽  
Author(s):  
A.V. Konoplev ◽  
R. Avila ◽  
A.A. Bulgakov ◽  
K.-J. Johanson ◽  
I.V. Konopleva ◽  
...  
Keyword(s):  
Forest Soils ◽  
Quantitative Assessment ◽  
Forest Ecosystems ◽  
Soil Characteristics ◽  
Selectivity Coefficient ◽  
Site Specific ◽  
Experimental Procedure ◽  
Availability Factor ◽  
Quantitative Characterisation ◽  
Concentration Factors

A method for quantitative characterisation of the radiocaesium availability to plants in forest ecosystems has been developed. For this purpose an expression has been proposed to calculate the radiocaesium availability factor in soils, which is a combination of key soil characteristics: radiocaesium exchangeability, exchangeable calcium in soil and effective selectivity coefficient. The experimental dependencies of the radiocaesium soil to plant concentration factors for fern and bilberry, on the availability factor calculated by the above equation were satisfactory described by linear function. The advantage of this method to characterise bioavailability of radiocaesium and to estimate site-specific values of concentration factor is that the necessary soil characteristics may be taken from the reference literature, evaluated by experts or determined with a simple experimental procedure. The method can be used in development of a radioecological Geographic Information Systems.

scholarly journals MONITORING ON FOREST ECOSYSTEMS BY USING SPACE-TEMPORAL ANALYSIS OF DIFFERENT TYPES AEROSPACE DATA

2017 ◽  
pp. 31-37
Author(s):  
Andrei Stoyanov ◽  
Denitsa Borisova
Keyword(s):  
Comparative Analysis ◽  
Forest Ecosystems ◽  
Temporal Analysis ◽  
Ecological Assessment ◽  
Forest Resources ◽  
Forest Vegetation ◽  
Resources Management ◽  
Radar Images ◽  
Different Types ◽  
Forest Resources Management

The following work presents results derived by space-temporal analysis of different types of aerospace data for environmental monitoring on the dynamics of the condition of the forest vegetation. Different indices (NDVI, NDWI) and indicators have been used for territories occupied by different types of forest ecosystems. A comparative analysis between optical and radar images have been conducted and results about the degree of correlation between the different generated indices from the tested areas are presented. Based on the performed different analysis and surveys and the results derived from them, an evaluation can be done for the following: for which territories occupied by specific forest vegetation are the most sensitive indices during the monitoring. The derived results could be used for monitoring and ecological assessment on forest resources management in regional and national action plans.

Carabidae of Barnaul city parks: ecological characteristics and species composition

2018 ◽  
Vol 8 (2) ◽  
pp. 348-353
Author(s):  
E. A. Kuchina ◽  
N. D. Ovcharenko ◽  
L. D. Vasileva
Keyword(s):  
Species Composition ◽  
Diversity Index ◽  
Similarity Index ◽  
Life Forms ◽  
Ground Beetles ◽  
Forest Steppe ◽  
Ecological Groups ◽  
Dominant Group ◽  
Species Diversity Index ◽  
Steppe Species

<p>Anthropogenic impact on the population of ground beetles leads to a change in their numbers, structure of dominance, density, species composition, spectrum of life forms. This makes the beetles Carabidae a convenient and informative bioindicator of the ecological state of biocenoses. The material for this work was the Carabidae collections conducted in June-August 2016-2017 in the park zone of different regions of Barnaul, differing in location, area, hydrological regime, vegetation cover, purpose and anthropogenic load. When processing the material, the quantitative, species and generic composition of the carabidae was determined, calculations were made for such indicators as the Berger-Parker dominance index, the Shannon species diversity index (Hs), and the Jacquard species similarity index. The fauna (Coleoptera, Carabidae) of the park zone of Barnaul is represented by 55 species belonging to 20 genera. The dominant group is represented by species belonging to steppe, forest and polyzonal groups. Forest-steppe species of ground beetles as dominants have not been identified in any of the investigated territories. The greatest variety of ecological groups was noted on the territory of the Yubileyny рark, which is explained by the presence of zones with various microclimatic conditions, the presence of a birch grove that flows through the park with the Pivovarka River, and a wide log in the park. Registered species belong to eight groups of life forms belonging to two classes - zoophagous and myxophytophagous. On the numerical and species abundance, zoophages predominate. The spectrum of life forms corresponds to the zonal spectrum characteristic of the forest-steppe zone.</p><p> </p>

USE OF AGRO-RESOURCE POTENTIAL OF GRAY FOREST SOILS OF UPPER VOLGA REGION

2020 ◽  
Keyword(s):  
Forest Soils ◽  
Perennial Grasses ◽  
Organic Fertilizers ◽  
Volga Region ◽  
Winter Rye ◽  
Resource Potential ◽  
Field Crops ◽  
Upper Volga ◽  
Gray Forest Soils ◽  
Winter Cereals

The results of long-term research on the influence of main indicators on their agro-resource potential are summarized on gray forest soils of the upper Volga region. For the conditions of the Vladimir Opolie, the probable yield of biomass and the main products of field crops were calculated at different coefficients ofphotosynthetic active radiation (FAR) use. Calculations of the main product yields are made taking into account the distribution of biomass to by-products and crop-root residues. For field crops of the studied crop rotations, the coefficients of precipitation utilization are estimated. They varied from 44 to 71%, depending on the crop rotation culture. On the slope of the southern exposure when cultivating winter cereals and perennial grasses, the main moisture losses were observed in the spring during snowmelt, when growing spring crops and potatoes, they were close in the autumn and spring periods. The sizes of moisture use by crops depending on the fertilizer systems for the creation of 1 C of grain units (g.u.) and from sub-arable layers are determined. In comparison with the liming background, the use of organic fertilizers reduced the water consumption coefficient from 9.6 to 8.5 mm/C g.u., their combination with a single dose of NPK - up to 7.3, and with a double dose - up to 6.8 mm / C g.u. Based on the amount of moisture used by crops, their possible yields are calculated. In spring crops, the amount of precipitation consumed (326-356 mm) corresponds to the use of 2.7-3% of the FAR and provides 54-60 C/ha of grain, in winter rye and wheat - about 4% of the FAR (yield 71-80 C/ha). In perennial grasses for 2 mowing, the moisture consumed is enough to use about 3% of the FAR., in potatoes -1.5%.

The use of algae-cyanobacterial communities for the assessment of lead pollution of gray forest soils

2011 ◽  
Vol 44 (3) ◽  
pp. 326-331 ◽  
Author(s):  
A. D. Temraleeva ◽  
D. L. Pinskii ◽  
E. N. Patova ◽  
E. V. Spirina
Keyword(s):  
Forest Soils ◽  
Lead Pollution ◽  
Gray Forest Soils

scholarly journals Floristic, frequency, and vegetation life-form spectra of a cerrado site

2004 ◽  
Vol 64 (2) ◽  
pp. 201-209 ◽  
Author(s):  
M. A. Batalha ◽  
F. R. Martins
Keyword(s):  
Frequency Spectrum ◽  
Vascular Plants ◽  
Life Form ◽  
Quantitative Description ◽  
Life Forms ◽  
Sensu Stricto ◽  
Southeastern Brazil ◽  
Frequency Spectra ◽  
Experimental Station ◽  
Normal Spectrum

We used Raunkiaer's system to classify in life-forms the vascular plants present in 12 random 25 m² quadrats of a cerrado site. The study area is covered by cerrado sensu stricto and is located in the Valério fragment, at about 22º13'S and 47º51'W, 760 m above sea level, in the Itirapina Ecological and Experimental Station, São Paulo State, southeastern Brazil. The floristic spectrum considers the life-form of each species, while in the frequency spectrum, each species is weighted by its frequency. The vegetation spectrum does not consider the species at all, but only the individuals in each life-form class. In the floristic spectrum, the most represented life-forms were the phanerophytes and the hemicryptophytes, as in other cerrado sites. This spectrum differed significantly from Raunkiaer's normal spectrum, mainly due to under-representation of therophytes and over-representation of phanerophytes. The floristic and frequency spectra were similar, but both differed from the vegetation spectrum. We recommend the floristic spectrum when working at larger scales and a description of the phytoclimate is wanted. The vegetation spectrum is preferable when working at smaller scales and wanting a quantitative description of the physiognomy. The frequency spectrum is not recommended at all.

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