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  • 1
    In: Land, MDPI AG, Vol. 12, No. 7 ( 2023-07-19), p. 1441-
    Abstract: This paper presents the evaluation and digital mapping of forest growing stock volume (GSV) and carbon stocks of the natural park Kandry-Kul (Republic of Bashkortostan, Russia). The field observations were conducted in the process of forest surveys in 1994 and 2018. According to these materials, we identified the predominant tree species in each studied plot. Then, we produced the digital maps of GSV and carbon stocks for each study year and calculated the annual increment. The results showed that birch (Betula pendula) and pine (Pinus sylvestris) were the dominant species in the studied park. The comparison of the two maps showed that the maximum annual GSV between 1994 and 2018 occurred in areas with a fairly small GSV in 1994. These areas were characterized by young trees of different species and pines of different ages, which had not yet reached the age of maturity, when the growth of trees is significantly reduced. We found that young pine crops contributed the greatest potential of carbon sequestration, with an annual GSV of 4.2 m3/ha per year. The birch trees made a minor contribution to the sequestration potential, characterized by relatively average annual growth (1.2 m3/ha per year). The change in carbon stocks for pine stands was on average 2 t/ha per year. For birch stands, the change in carbon stocks was approximately 0.5 t/ha per year, which is 30% of the average values for the forest-steppe region. Our results provide quantitative information on the carbon accumulation rate in secondary forests under conditions of intensive recreational load.
    Type of Medium: Online Resource
    ISSN: 2073-445X
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2682955-1
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  • 2
    In: Chemosphere, Elsevier BV, Vol. 282 ( 2021-11), p. 131106-
    Type of Medium: Online Resource
    ISSN: 0045-6535
    RVK:
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2021
    detail.hit.zdb_id: 1496851-4
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  • 3
    Online Resource
    Online Resource
    FSBEIHE North Caucasian Institute of Mining and Metallurgy (STU) ; 2022
    In:  Sustainable Development of Mountain Territories Vol. 14, No. 2 ( 2022-06-30), p. 209-217
    In: Sustainable Development of Mountain Territories, FSBEIHE North Caucasian Institute of Mining and Metallurgy (STU), Vol. 14, No. 2 ( 2022-06-30), p. 209-217
    Abstract: Using the example of the UNESCO Global Geopark "Yangan-Tau", the article presents a methodology for inventorying geological heritage objects as part of the natural heritage. The mechanism for assessing their scientific, educational and tourist significance is disclosed, the geoconservation is substantiated. The objects of geological heritage are ranked according to the value of the international, national, regional and local level. The application of the developed methodology will allow regional geoparks to approach the criteria indicators of UNESCO global geoparks. Introduction. UNESCO Global Geoparks demonstrate a model of effective management of the territory on which they are located. The status of the geopark is confirmed by seven criteria established by the UNESCO International Program on Geoparks and Geosciences. The first two of them are implemented, among other things, by conducting a detailed inventory of geological objects. The aim of research is to develop a methodology for the inventory of geological heritage objects (geo objects) of regional geoparks based on the assessment of their scientific, educational, tourist, environmental significance and the geoconservation in order to approach the criteria indicators of UNESCO Global Geoparks. Methodology. The inventory methodology involves an expert assessment of the scientific, educational and tourist value of objects, the geoconservation, the allocation of criteria for evaluating scientific, educational, tourist significance and the geoconservation, the development of indicators to determine the level of value. Results. The methodology was tested on the basis of geological heritage objects presented in the nomination dossier of the Yangan-Tau UNESCO global geopark in the Republic of Bashkortostan. The methodology revealed that over 60% of geological heritage sites have high scientific and educational significance. More than 30% of geosites have tourist significance. 12.5% of geosites require protection and preservation measures. The results of the application of the methodology demonstrated that international and national geosites have high scientific and educational significance. They are characterized by a better level of security, which guarantees the absence of significant threats. Objects of regional and local importance have medium and low scientific value, although their educational significance is quite high, and for tourists it varies between high and medium levels. Conclusion. The possibility of a regional geopark joining the UNESCO network of global geoparks is conditioned by compliance with the criteria approved by the UNESCO International Program on Geoparks and Geosciences, including various aspects of sustainable development of the territory. The methodology of inventory of geological heritage sites will allow regional geoparks to identify their strengths and weaknesses in order to approach the criteria indicators of UNESCO Global Geoparks.
    Type of Medium: Online Resource
    ISSN: 1998-4502 , 2499-975X
    Uniform Title: Методика инвентаризации объектов геологического наследия как инструмент управления геопарками
    URL: Issue
    Language: Unknown
    Publisher: FSBEIHE North Caucasian Institute of Mining and Metallurgy (STU)
    Publication Date: 2022
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  • 4
    In: Atmosphere, MDPI AG, Vol. 14, No. 2 ( 2023-02-02), p. 301-
    Abstract: The purpose of this study was to compare the concentration of total protein, as well as the composition and abundance of culturable microorganisms in atmospheric aerosols collected over the Vasyugan marshes and the Karakan pine forest during a flight in September 2018 at altitudes from 500 to 7000 m. The determined concentrations of total protein in Karakan samples were on average much less than those for the same area in September of other years. The concentration and composition of microorganisms in aerosol samples were determined by cultural methods and isolate genotyping. Altitude dependences of concentrations of total protein and culturable microorganisms were revealed. A rather stable altitude profile of culturable microorganism concentration was found over the Vasyugan marshes. No microorganisms were found at altitudes 4000 and 5500 m over the Karakan pine forest. Non-spore-bearing and spore-forming bacteria, as well as molds and yeast-like fungi, were isolated from aerosol samples. A high concentration of cosmopolitan psychrotolerant yeast Aureobasidium, capable of causing severe mycoses, and opportunistic bacteria Acinetobacter were found. A great similarity of composition and an atypically high abundance of non-spore-bearing bacteria and psychrotolerant yeast-like fungi were revealed in samples taken at altitudes of 1000 and 500 m in both studied regions, which may be a consequence of large-scale horizontal transport of layers of atmospheric air contaminated with microorganisms.
    Type of Medium: Online Resource
    ISSN: 2073-4433
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2605928-9
    SSG: 23
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  • 5
    In: E3S Web of Conferences, EDP Sciences, Vol. 411 ( 2023), p. 02004-
    Abstract: Understanding the dynamics of SOM in different land use types is critical for effective land management and climate mitigation strategies. In this study, we investigated the differences in soil organic matter (SOM) content between forest and grassland landscapes in the mountainous zone of Republic of Bashkortostan, Russia. We collected soil samples from multiple locations under both land use types and analysed them for SOM content using standard laboratory techniques. The results showed that the SOM content varied from 2.2 to 15.3% under forest landscape with an average of 6.7% and was characterized by high variability (51.8%). The SOM concentrations under grassland ranged from 2.1 to 6.5% with an average of 3.2%, while the coefficient of variation was 31.8%. According to the classification, the average SOM value in forest soils was classified as “high”, while in grassland soils it was classified as “low”. Overall, the variability in SOM content within forested landscapes can be influenced by a range of factors, including topography, erosion, and redeposition of soil. These factors contributed to the complex patterns of SOM accumulation and decomposition observed in forest soils, and should be considered when evaluating the potential impacts of land use change on SOM. Our study highlights the importance of understanding the factors that influence SOM content in soils, and the need for careful management of land use systems to maintain or enhance soil fertility and productivity.
    Type of Medium: Online Resource
    ISSN: 2267-1242
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2023
    detail.hit.zdb_id: 2755680-3
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  • 6
    In: Agriculture, MDPI AG, Vol. 13, No. 5 ( 2023-04-28), p. 976-
    Abstract: The problem of salinization/spreading of saline soils is becoming more urgent in many regions of the world, especially in context of climate change. The monitoring of salt-affected soils’ properties is a necessary procedure in land management and irrigation planning and is aimed to obtain high crop harvest and reduce degradation processes. In this work, a machine learning method was applied for modeling of the spatial distribution of topsoil (0–20 cm) properties—in particular: soil organic carbon (SOC), pH, and salt content (dry residue). A random forest (RF) machine learning approach was used in combination with environmental variables to predict soil properties in a semi-arid area (Trans-Ural steppe zone). Soil, salinity, and texture maps; topography attributes; and remote sensing data (RSD) were used as predictors. The coefficient of determination (R2) and the root mean square error (RMSE) were used to estimate the performance of the RF model. The cross-validation result showed that the RF model achieved an R2 of 0.59 and an RMSE of 0.68 for SOM; 0.36 and 0.65, respectively, for soil pH; and 0.78 and 1.21, respectively for dry residue prediction. The SOC content ranged from 0.8 to 2.8%, with an average value of 1.9%; soil pH ranged from 5.9 to 8.4, with an average of 7.2; dry residue varied greatly from 0.04 to 16.8%, with an average value of 1.3%. A variable importance analysis indicated that remote sensing variables (salinity indices and NDVI) were dominant in the spatial prediction of soil parameters. The importance of RSD for evaluating saline soils and their properties is explained by their absorption characteristics/reflectivity in the visible and near-infrared spectra. Solonchak soils are distinguished by a salt crust on the land surface and, as a result, reduced SOC contents and vegetation biomass. However, the change in saline and non-saline soils over a short distance with mosaic structure of soil cover requires high-resolution RSD or aerial images obtained from unmanned aerial vehicle/drones for successful digital mapping of soil parameters. The presented results provide an effective method to estimate soil properties in saline landscapes for further land management/reclamation planning of degraded soils in arid and semi-arid regions.
    Type of Medium: Online Resource
    ISSN: 2077-0472
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2651678-0
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  • 7
    In: CLEAN – Soil, Air, Water, Wiley, Vol. 36, No. 7 ( 2008-07), p. 564-571
    Abstract: Multi‐year monitoring of atmospheric bioaerosol in Southwestern Siberia revealed the presence of a large number of various culturable microorganisms. It is known that viable microorganisms can cause directly or provoke different human diseases. It's very difficult to evaluate the danger represented by each microorganism to man directly. Therefore, a relatively simple method is required for evaluation of potential danger represented to man by the whole assembly of culturable microorganisms in an atmospheric aerosol sample. For bacteria, the method can be based on a number of individual characteristics of each microorganism determined in the course of biochemical and other test required for identification of the detected bacterium, and a number of other tests. It is proposed to classify the measured individual characteristics of bacteria under four groups of indices responsible for: (i) potential pathogenicity for man; (ii) the numbers of bacteria in the sample; (iii) resistance to unfavorable environmental factors; (iv) drug resistance of bacteria. Each of four groups of indices is numerically evaluated by a certain integral index, which quantitatively reflects the contribution of experimentally determined characteristics of bacteria. Expert evaluation of the contribution of each characteristic of microorganisms to the corresponding group of indices is performed. The generalized index of potential danger of culturable bacteria in atmospheric aerosols for human health is presented as the product of four integral indices summarizing the normalized individual integral indices for all bacteria detected in the sample. The work presents the results of measuring the variations of all the above indices for atmospheric air samples collected during one year.
    Type of Medium: Online Resource
    ISSN: 1863-0650 , 1863-0669
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2008
    detail.hit.zdb_id: 2270984-8
    detail.hit.zdb_id: 2271097-8
    SSG: 13
    SSG: 14
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  • 8
    In: Plants, MDPI AG, Vol. 11, No. 23 ( 2022-12-06), p. 3396-
    Abstract: The modern approach to the creation of biological products to stimulate plant growth is based on the study of specific inter-bacterial interactions. This study describes the impact that the introduction of strains of the genus Pseudomonas has on annual and perennial leguminous plants and the ecosystem of the leguminous plant—the indigenous microbial community. The objects of research under the conditions of vegetation experiments were plants of field peas (Pisum sativum L.), white lupine (Lupinus albus L.), chickpea (Cicer arietinum L.), alfalfa (Medicago sativa subsp. varia (Martyn) Arcang.), and white sweet clover (Melilotus albus Medik.). For the treatment of plant seeds, a liquid culture of strains of growth-stimulating bacteria Pseudomonas koreensis IB-4, and P. laurentiana ANT 17 was used. The positive effect of the studied strains on the germination, growth and development of plants was established. There was no inhibitory effect of inoculants on rhizobia; on the contrary, an increase in nodule formation was observed. The possibility of recultivation of oil-contaminated soil using chickpea and alfalfa as phytomeliorants and growth-stimulating strains P. koreensis IB-4, P. laurentiana ANT 17 as inoculants was evaluated. It is proved that seed treatment improved the morphological parameters of plants, as well as the efficiency of oil destruction.
    Type of Medium: Online Resource
    ISSN: 2223-7747
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2704341-1
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  • 9
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2023
    In:  Modeling Earth Systems and Environment Vol. 9, No. 3 ( 2023-09), p. 3461-3471
    In: Modeling Earth Systems and Environment, Springer Science and Business Media LLC, Vol. 9, No. 3 ( 2023-09), p. 3461-3471
    Type of Medium: Online Resource
    ISSN: 2363-6203 , 2363-6211
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 2821317-8
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  • 10
    In: International Journal of Environmental Research and Public Health, MDPI AG, Vol. 17, No. 5 ( 2020-03-03), p. 1651-
    Abstract: One of the most important components of atmospheric aerosols are microorganisms. Therefore, it is necessary to assess the hazard to humans, both from individual microorganisms which are present in atmospheric bioaerosols as well as from their pool. An approach for determining the hazard of bacteria and yeasts found in atmospheric bioaerosols for humans has previously been proposed. The purpose of this paper is to compare our results for 2006–2008 with the results of studies obtained in 2012–2016 to identify changes in the characteristics of bioaerosols occurring over a decade in the south of Western Siberia. Experimental data on the growth, morphological and biochemical properties of bacteria and yeasts were determined for each isolate found in bioaerosol samples. The integral indices of the hazards of bacteria and yeast for humans were constructed for each isolate based on experimentally determined isolate characteristics according to the approach developed by authors in 2008. Data analysis of two datasets showed that hazard to humans of culturable microorganisms in the atmospheric aerosol in the south of Western Siberia has not changed significantly for 10 years (trends are undistinguishable from zero with a confidence level of more than 95%) despite a noticeable decrease in the average annual number of culturable microorganisms per cubic meter (6–10 times for 10 years).
    Type of Medium: Online Resource
    ISSN: 1660-4601
    Language: English
    Publisher: MDPI AG
    Publication Date: 2020
    detail.hit.zdb_id: 2175195-X
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