Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s14.35
O. Liashenko, D. Kyryichuk, Nadiia Holovina, V. Prachyk, Svitlana Bunkus
The territory of Ukraine is characterized by the occurrence of a large number of wildfires, mainly in mixed and coniferous forest ecosystems of Polissia, Forest-Steppe and Ukrainian Carpathians. The frequency of occurrence and destructive consequences of natural fires in forest ecosystems require the adoption of prompt measures aimed at their prevention, localization and liquidation. Monitoring plays the main role in the process of preventing wildfires, since observation, collection, analysis and assessment of qualitative and quantitative parameters of the state of forest ecosystems, dangerous processes occurring in them, as well as potential sources of wildfires will allow developing and implementing measures aimed at preserving biodiversity and gene pool of forest biocenoses, reduction of material losses, localization of zones of natural fires, termination of the action of dangerous factors characteristic of them. The main field of practical application of monitoring is the information service of the authorities in the conditions of wildfires. Information monitoring system (IMS) is a distributed system of continuous observations, laboratory and other control for assessing the state of forest ecosystems, as well as dangerous processes occurring in them that can lead to a threat or the occurrence of fires, as well as timely identification of trends in their change. The main tasks of the IMS are: assessment of the impact of fires, recreation, pests and diseases on forest ecosystems, identification of the extent of forest damage, formation of an information fund on hazardous factors and processes that can lead to fires, assessment of the socio-economic consequences of fires, preparation of proposals for improvement of the activities of monitoring subjects - executive authorities and local governments on the issues of preventing negative changes in the field of natural security. For the development of the IMS, an object-oriented methodology and Java multithreading technology were chosen. The use of multithreading technology in a distributed IMS made it possible to implement the requirements for simultaneous support of many users, each of which was allocated a separate thread, as well as the separation and parallel processing of information resources. All threads are executed independently of each other, so there is no blocking of users in the IMS, and it is possible to perform several operations at the same time. The basis of the IMS is a database that contains information on forest and steppe fires with an area of over 5 ha, as well as peat fires with an area of over 1 ha. Information about fires in natural ecosystems contains: coordinates, the area of fire and smoke plume, the area of affected forests, natural meadows, farmland, its% of the total area, the presence and number of affected settlements, the presence and number of fire victims.
{"title":"DEVELOPMENT OF INFORMATION TECHNOLOGY FOR MONITORING OF FOREST ECOSYSTEMS UNDER CONDITIONS OF WILDFIRES","authors":"O. Liashenko, D. Kyryichuk, Nadiia Holovina, V. Prachyk, Svitlana Bunkus","doi":"10.5593/sgem2022v/3.2/s14.35","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s14.35","url":null,"abstract":"The territory of Ukraine is characterized by the occurrence of a large number of wildfires, mainly in mixed and coniferous forest ecosystems of Polissia, Forest-Steppe and Ukrainian Carpathians. The frequency of occurrence and destructive consequences of natural fires in forest ecosystems require the adoption of prompt measures aimed at their prevention, localization and liquidation. \u0000Monitoring plays the main role in the process of preventing wildfires, since observation, collection, analysis and assessment of qualitative and quantitative parameters of the state of forest ecosystems, dangerous processes occurring in them, as well as potential sources of wildfires will allow developing and implementing measures aimed at preserving biodiversity and gene pool of forest biocenoses, reduction of material losses, localization of zones of natural fires, termination of the action of dangerous factors characteristic of them. The main field of practical application of monitoring is the information service of the authorities in the conditions of wildfires. \u0000Information monitoring system (IMS) is a distributed system of continuous observations, laboratory and other control for assessing the state of forest ecosystems, as well as dangerous processes occurring in them that can lead to a threat or the occurrence of fires, as well as timely identification of trends in their change. \u0000The main tasks of the IMS are: assessment of the impact of fires, recreation, pests and diseases on forest ecosystems, identification of the extent of forest damage, formation of an information fund on hazardous factors and processes that can lead to fires, assessment of the socio-economic consequences of fires, preparation of proposals for improvement of the activities of monitoring subjects - executive authorities and local governments on the issues of preventing negative changes in the field of natural security. \u0000For the development of the IMS, an object-oriented methodology and Java multithreading technology were chosen. The use of multithreading technology in a distributed IMS made it possible to implement the requirements for simultaneous support of many users, each of which was allocated a separate thread, as well as the separation and parallel processing of information resources. All threads are executed independently of each other, so there is no blocking of users in the IMS, and it is possible to perform several operations at the same time. \u0000The basis of the IMS is a database that contains information on forest and steppe fires with an area of over 5 ha, as well as peat fires with an area of over 1 ha. Information about fires in natural ecosystems contains: coordinates, the area of fire and smoke plume, the area of affected forests, natural meadows, farmland, its% of the total area, the presence and number of affected settlements, the presence and number of fire victims.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124037644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s12.20
T. Kučera, Zdeněk Zelený
In connection with the publication of the new European directive for drinking water, some new indicators of drinking water quality from the category of micropollutants have been introduced, which will have to be eliminated during the production of drinking water. The described research focused on selected progressive technologies applicable in water treatment regarding the removal of micropollutants. It is expected that for the elimination of other micropollutants it will be possible to use existing technologies used, for example, to remove pesticides, such as activated carbon filtration, high-pressure membranes, or technologies using nanomaterials will be deployed. Increased attention is paid to the use of nano-iron for water treatment. A series of laboratory tests of selected technologies with the potential to eliminate micropollutants is presented. The article presents the overall efficiency found in selected indicators during laboratory tests, the overall efficiency of technologies and the limits and limiting factors regarding the elimination of the given pollution are discussed.
{"title":"PROGRESSIVE WATER TREATMENT TECHNOLOGY TO REMOVE MICROPOLLUTANTS","authors":"T. Kučera, Zdeněk Zelený","doi":"10.5593/sgem2022v/3.2/s12.20","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s12.20","url":null,"abstract":"In connection with the publication of the new European directive for drinking water, some new indicators of drinking water quality from the category of micropollutants have been introduced, which will have to be eliminated during the production of drinking water. The described research focused on selected progressive technologies applicable in water treatment regarding the removal of micropollutants. It is expected that for the elimination of other micropollutants it will be possible to use existing technologies used, for example, to remove pesticides, such as activated carbon filtration, high-pressure membranes, or technologies using nanomaterials will be deployed. Increased attention is paid to the use of nano-iron for water treatment. A series of laboratory tests of selected technologies with the potential to eliminate micropollutants is presented. The article presents the overall efficiency found in selected indicators during laboratory tests, the overall efficiency of technologies and the limits and limiting factors regarding the elimination of the given pollution are discussed.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132819917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s06.30
Antonio Chicuna Suami Gomes, K. Vorobyev, V. Shcherba, T. Chekushina, Mohamad Ali Alawiyeh
The paper reposts on a comprehensive study of Carbon Dioxide Enhanced Oil Recovery (CO2-EOR), a detailed literature and projects review. In one hand, according to past studies, when injected CO2 and residual oil are miscible (Miscible Displacement), the physical forces holding the two phases apart (Interfacial Tension, IFT) disappears; as CO2 dissolves in the oil, it swells the oil, reducing its viscosity and density. This allows the oil CO2 to displace the oil from the rock pores, pushing it towards a production well. On the other hand, when injected CO2 and residual oil are not miscible (Immiscible Displacement), this process is used as a secondary recovery method. As many experts look to carbon capture, utilization and storage (CCUS) as one of the best alternatives for dealing with carbon emissions, research studies and laboratory investigations have indicated that, beyond its potential to augment oil production, CO2-EOR is getting intensive scrutiny by the industry, government, and environmental organizations for its potential for permanently storing CO2. A good example is a study by Montana Tech University, which found that CO2 flooding of Montana�s Elm Coulee and Cedar Creek oil fields could result in the recovery of 666 million barrels of incremental oil and the storage of 640 billion cubic meters of CO2, which is equivalent to 7 years of supplier�s CO2 emissions (a coal-fired power plant). Some other projects in the U.S., Canada and Norway have been evaluated. An economic and ecological analysis of the CO2-EOR process have been provided.
{"title":"ANALYSIS OF THE CARBON DIOXIDE ENHANCED OIL RECOVERY TECHNOLOGY","authors":"Antonio Chicuna Suami Gomes, K. Vorobyev, V. Shcherba, T. Chekushina, Mohamad Ali Alawiyeh","doi":"10.5593/sgem2022v/3.2/s06.30","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s06.30","url":null,"abstract":"The paper reposts on a comprehensive study of Carbon Dioxide Enhanced Oil Recovery (CO2-EOR), a detailed literature and projects review. In one hand, according to past studies, when injected CO2 and residual oil are miscible (Miscible Displacement), the physical forces holding the two phases apart (Interfacial Tension, IFT) disappears; as CO2 dissolves in the oil, it swells the oil, reducing its viscosity and density. This allows the oil CO2 to displace the oil from the rock pores, pushing it towards a production well. On the other hand, when injected CO2 and residual oil are not miscible (Immiscible Displacement), this process is used as a secondary recovery method. As many experts look to carbon capture, utilization and storage (CCUS) as one of the best alternatives for dealing with carbon emissions, research studies and laboratory investigations have indicated that, beyond its potential to augment oil production, CO2-EOR is getting intensive scrutiny by the industry, government, and environmental organizations for its potential for permanently storing CO2. A good example is a study by Montana Tech University, which found that CO2 flooding of Montana�s Elm Coulee and Cedar Creek oil fields could result in the recovery of 666 million barrels of incremental oil and the storage of 640 billion cubic meters of CO2, which is equivalent to 7 years of supplier�s CO2 emissions (a coal-fired power plant). Some other projects in the U.S., Canada and Norway have been evaluated. An economic and ecological analysis of the CO2-EOR process have been provided.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132226091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s14.38
B. Negrea, E. Pricop, Adrian-Radu Rey, Carmen Catuna-Boca, Marian Trisciuc
In this paper, we intended to analyze non-native plant species that spread uncontrollably and have a visible and quantifiable impact in the analyzed area. The analyzed plant species demonstrate a strong invasive character, overwhelming the native plant species. This fact leads to a loss of biodiversity at the local level, but especially to production loss of the useful biomass on the invaded land surfaces. The aim of this paper is to show a practical method of analysis and evaluation of economic losses at the local level caused by invasive plant species. At the same time, the paper wants to explain the factors that favor the spread of these invasive species on the territory of the investigated area. The most important factors contributing to the spread of these species are also noted. These are represented in particular by change in land use, climate change and uncontrolled, irresponsible growth in the gardens of these plant species. Invasive plant species such as Reynoutria japonica Houtt, Impatiens glandulifera Royle, Solidago canadensis L., are discussed. The populations of these species have a visible and quantifiable impact that can be found in the biomass production of the surfaces on which they grow. The uncontrolled spread of the populations made of these plant species leads to the damage of useful lands traditionally used for grazing or harvesting fodder for farm animals. In this paper, a method is outlined for the assessment of harvest losses on the surfaces affected by the populations of these plants.
{"title":"ECONOMIC IMPLICATIONS OF THE SPREAD OF NON-NATIVE INVASIVE PLANT SPECIES IN THE UPPER BASIN OF THE BISTRITA MOUNTAIN RIVER, EASTERN CARPATHIANS, ROMANIA","authors":"B. Negrea, E. Pricop, Adrian-Radu Rey, Carmen Catuna-Boca, Marian Trisciuc","doi":"10.5593/sgem2022v/3.2/s14.38","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s14.38","url":null,"abstract":"In this paper, we intended to analyze non-native plant species that spread uncontrollably and have a visible and quantifiable impact in the analyzed area. The analyzed plant species demonstrate a strong invasive character, overwhelming the native plant species. This fact leads to a loss of biodiversity at the local level, but especially to production loss of the useful biomass on the invaded land surfaces. The aim of this paper is to show a practical method of analysis and evaluation of economic losses at the local level caused by invasive plant species. At the same time, the paper wants to explain the factors that favor the spread of these invasive species on the territory of the investigated area. The most important factors contributing to the spread of these species are also noted. These are represented in particular by change in land use, climate change and uncontrolled, irresponsible growth in the gardens of these plant species. \u0000Invasive plant species such as Reynoutria japonica Houtt, Impatiens glandulifera Royle, Solidago canadensis L., are discussed. The populations of these species have a visible and quantifiable impact that can be found in the biomass production of the surfaces on which they grow. The uncontrolled spread of the populations made of these plant species leads to the damage of useful lands traditionally used for grazing or harvesting fodder for farm animals. In this paper, a method is outlined for the assessment of harvest losses on the surfaces affected by the populations of these plants.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134614306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s12.17
Ton John L. Baytamo, Katrina C. Perez, M. Almendrala
The treatment of the Pasig River water using ultrafiltration is a promising solution that may help address issues on public water quality and availability around Metro Manila, Philippines. To improve the treatment performance, ultrafiltration can be applied with coagulation and adsorption. In this study, the effectiveness of ultrafiltration in treating the Pasig River water with dual coagulation and adsorption was investigated by determining the percent removal of TDS, turbidity, Escherichia coli (E. coli), nitrate, pH, copper, chromium, lead, total hardness, true color, and odor. The jar test results show that a dual coagulant mixture of 30% organic polyDADMAC solution and 70% inorganic Aluminum Chlorohydrate (ACH) solution, and 10 mL/L was optimal. A 98.01% turbidity removal was achieved under these conditions, and it was able to remove E.coli. Ultrafiltration using the hollow-fiber membrane has an optimum transmembrane pressure of 19 psig; this stage has effectively treated the river water with percent removals of 74.67%, 17.60%, 28.94%, 36.13%, and 50.00% for turbidity, TDS, nitrates, hardness, and true color, respectively. Coagulation and chemical cleaning before operation also substantially increased its ability to filter quicker. Further, adsorption using Granular Activated Carbon (GAC) was proven to be a good post-treatment, reducing the water quality parameters at removals of 19.98%, 11.37%, and 34.07% removal for TDS, nitrates, and hardness, accordingly; the odor also was removed after the GAC adsorption. This study also found that the Pasig River water contains very low concentrations of copper, chromium, and lead, all maintained throughout the water treatment process.
{"title":"PASIG RIVER WATER PURIFICATION BY ULTRAFILTRATION: APPLICATION OF DUAL COAGULATION AND ADSORPTION FOR ENHANCED TREATMENT PROCESS","authors":"Ton John L. Baytamo, Katrina C. Perez, M. Almendrala","doi":"10.5593/sgem2022v/3.2/s12.17","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s12.17","url":null,"abstract":"The treatment of the Pasig River water using ultrafiltration is a promising solution that may help address issues on public water quality and availability around Metro Manila, Philippines. To improve the treatment performance, ultrafiltration can be applied with coagulation and adsorption. In this study, the effectiveness of ultrafiltration in treating the Pasig River water with dual coagulation and adsorption was investigated by determining the percent removal of TDS, turbidity, Escherichia coli (E. coli), nitrate, pH, copper, chromium, lead, total hardness, true color, and odor. The jar test results show that a dual coagulant mixture of 30% organic polyDADMAC solution and 70% inorganic Aluminum Chlorohydrate (ACH) solution, and 10 mL/L was optimal. A 98.01% turbidity removal was achieved under these conditions, and it was able to remove E.coli. Ultrafiltration using the hollow-fiber membrane has an optimum transmembrane pressure of 19 psig; this stage has effectively treated the river water with percent removals of 74.67%, 17.60%, 28.94%, 36.13%, and 50.00% for turbidity, TDS, nitrates, hardness, and true color, respectively. Coagulation and chemical cleaning before operation also substantially increased its ability to filter quicker. Further, adsorption using Granular Activated Carbon (GAC) was proven to be a good post-treatment, reducing the water quality parameters at removals of 19.98%, 11.37%, and 34.07% removal for TDS, nitrates, and hardness, accordingly; the odor also was removed after the GAC adsorption. This study also found that the Pasig River water contains very low concentrations of copper, chromium, and lead, all maintained throughout the water treatment process.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134641344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s14.36
V. Skliar
Studies were conducted on the territories of the Left Bank Polissia, which aimed to assess the state and find out the peculiarities and patterns of natural seed regeneration of the leading forest-forming species of the Left Bank Polissia of Ukraine � Pinus sylvestris L., Quercus robur L., Acer platanoides L., Betula pendula Roth., Populus tremula L. as a mechanism for ensuring the preservation and functioning of forest phytocoenoses of this region. Phytocoenoses of 24 groups of associations representing forest communities typical for the region were covered by the study. The studies were carried out based on the original system of the division of woody plant populations into intrapopulation structural groups - cohorts. Considering the established facts regarding the prevalence of cohorts in the phytocoenoses of the Left Bank Polissia of Ukraine, a special method of building phytocoenotic pyramids of natural restoration was developed. According to the results of the analysis of the condition and signs of phytocenotic pyramids, it is shown that the natural regeneration of each of the forest-forming species within the areas of the Left Bank Polissia of Ukraine has its own specific features signs of formation, distribution of cohorts and their transition from tier to tier of forest phytocoenoses. Although all these species are characterized by a tendency to decrease the prevalence of cohorts in the range small undergrowth > medium > large.
{"title":"DISCOVERY OF THE FEATURES AND REGULATIONS OF THE PROCESS OF NATURAL REGENERATION OF FORESTS ON THE BASIS OF THE CONSTRUCTION OF PHYTOCENOTIC PYRAMIDS","authors":"V. Skliar","doi":"10.5593/sgem2022v/3.2/s14.36","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s14.36","url":null,"abstract":"Studies were conducted on the territories of the Left Bank Polissia, which aimed to assess the state and find out the peculiarities and patterns of natural seed regeneration of the leading forest-forming species of the Left Bank Polissia of Ukraine � Pinus sylvestris L., Quercus robur L., Acer platanoides L., Betula pendula Roth., Populus tremula L. as a mechanism for ensuring the preservation and functioning of forest phytocoenoses of this region. Phytocoenoses of 24 groups of associations representing forest communities typical for the region were covered by the study. The studies were carried out based on the original system of the division of woody plant populations into intrapopulation structural groups - cohorts. Considering the established facts regarding the prevalence of cohorts in the phytocoenoses of the Left Bank Polissia of Ukraine, a special method of building phytocoenotic pyramids of natural restoration was developed. According to the results of the analysis of the condition and signs of phytocenotic pyramids, it is shown that the natural regeneration of each of the forest-forming species within the areas of the Left Bank Polissia of Ukraine has its own specific features signs of formation, distribution of cohorts and their transition from tier to tier of forest phytocoenoses. Although all these species are characterized by a tendency to decrease the prevalence of cohorts in the range small undergrowth > medium > large.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134541059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s12.13
Darinka Kiš-Novak
The Water Area Management Plan 2016-2021 assessed reservoirs as natural water bodies. This assessment included their ecological condition. The goal of the intercalibration procedure is to achieve consistency, comparability of results and evaluation of the ecological state based on the biological element of macrozoobenthos quality. The paper presents the results of research on the Cakovec HPP and Dubrava HPP reservoirs on the Drava River from 1999 and 2003. Complex studies of individual biological elements of macrozoobenthos included seasonal monitoring. They are part of the overall state of the cenosis and water quality with the aim of determining trophic characteristics and water quality by monitoring the quantitative and qualitative composition of the population of macrozoobenthos.The research obtained the values of the abundance of individual taxa of bottom macrofauna by reservoir stations, the total number of individuals, the number of indicator individuals, the saprobic index (SI), the number of taxa and the number of indicator taxa. The author compared the obtained results with the old and new Regulations on water quality standards in the prescribed indices and limit values of the macrozoobenthos biological element. The obtained results show the bad ecological condition of the reservoirs (as well as the ecological potential). In 2021, this area officially became part of the Five-State Biosphere Reserve.
{"title":"INTERCALIBRATION PROCEDURE OF THE FRAMEWORK DIRECTIVE ON WATER - COMPARISON OF RESULTS FOR MACROZOOBENTHOS ON THE EXAMPLE OF RESERVOIR LAKES OF THE DRAVA RIVER IN MEDUMURJE, CROATIA","authors":"Darinka Kiš-Novak","doi":"10.5593/sgem2022v/3.2/s12.13","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s12.13","url":null,"abstract":"The Water Area Management Plan 2016-2021 assessed reservoirs as natural water bodies. This assessment included their ecological condition. The goal of the intercalibration procedure is to achieve consistency, comparability of results and evaluation of the ecological state based on the biological element of macrozoobenthos quality. The paper presents the results of research on the Cakovec HPP and Dubrava HPP reservoirs on the Drava River from 1999 and 2003. Complex studies of individual biological elements of macrozoobenthos included seasonal monitoring. They are part of the overall state of the cenosis and water quality with the aim of determining trophic characteristics and water quality by monitoring the quantitative and qualitative composition of the population of macrozoobenthos.The research obtained the values of the abundance of individual taxa of bottom macrofauna by reservoir stations, the total number of individuals, the number of indicator individuals, the saprobic index (SI), the number of taxa and the number of indicator taxa. The author compared the obtained results with the old and new Regulations on water quality standards in the prescribed indices and limit values of the macrozoobenthos biological element. The obtained results show the bad ecological condition of the reservoirs (as well as the ecological potential). In 2021, this area officially became part of the Five-State Biosphere Reserve.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128461558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s12.10
I. Catianis, Dan-Lucian Vasiliu, A. Constantinescu, B. Ispas, O. Dobre
Several geochemical analyses (bulk parameters, particle size, loss on ignition, major, minor and trace elements) were performed on 51 recent sediment samples collected in May 2022 from Rosulet, Rosu and Puiu lakes which are located in the fluvio-marine delta plain of the Danube Delta, Romania. The aim of this study was to decipher the potential origin of anthropogenic and/or natural sources, weathering, sedimentary processes and the local geochemical fingerprint on the distribution of specific chemical elements in lacustrine sediments. The resulting compositional dataset showed an interesting spatial variation of the investigated variables. Loss on ignition identified higher concentration of sedimentary organic matter (TOM%) suggesting the autochthonous input derived largely from macro-and micro-phytoplankton, remnants of the biota etc. Similarly, the higher concentrations of total carbonates (CAR%) are attributed to autochthonous input being associated with biogenic debris. Generally, the particle size results exhibited that the lacustrine samples belong to the textural categories as sandy silt and silt. The spatial distribution of major (CaCO3%, TOC%, Fe2O3%), minor (MnO%) and trace components (Rb, Sr, Zr mg/kg) is considerably influenced by the sediment catchment basin lithology. Technophilic elements results (As, Cr, Cu, Hg, Ni, Pb, V and Zn) were related to the maximum allowable limits (MAL) and/or to the natural background reference values stipulated by the national environmental references. Based on the results of contamination analysis, most of the heavy metals (Cr, Cu Pb and Zn) were below the limits (MAL), implying that they have insignificant environmental risk. Instead, the obtained results implied a relatively high concentration of As, Hg, Ni and V, which exceed the corresponding reference standards in some samples. This may be attributed to the presence of allochthonous elevated concentrations of metals transported by the main and secondary hydrographic network waterways up to the interdistributary depressions, or as a consequence of autochthonous input, reflecting a local signature of the natural geochemical fingerprint. The findings from this study provide useful information for the environmental risk assessment relating to the current environmental conditions within deltaic ecosystems as an integral part of the Danube Delta Biosphere Reserve, one of the world�s most important and vulnerable areas in terms of pollution, Danube River water levels, extreme weather conditions (floods and droughts), and other factors exacerbated by the climate change.
{"title":"GEOCHEMICAL CHARACTERIZATION OF ORGANIC-RICH LACUSTRINE SEDIMENTS FROM ROSULET, ROSU AND PUIU LAKES, DANUBE DELTA, ROMANIA","authors":"I. Catianis, Dan-Lucian Vasiliu, A. Constantinescu, B. Ispas, O. Dobre","doi":"10.5593/sgem2022v/3.2/s12.10","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s12.10","url":null,"abstract":"Several geochemical analyses (bulk parameters, particle size, loss on ignition, major, minor and trace elements) were performed on 51 recent sediment samples collected in May 2022 from Rosulet, Rosu and Puiu lakes which are located in the fluvio-marine delta plain of the Danube Delta, Romania. The aim of this study was to decipher the potential origin of anthropogenic and/or natural sources, weathering, sedimentary processes and the local geochemical fingerprint on the distribution of specific chemical elements in lacustrine sediments. The resulting compositional dataset showed an interesting spatial variation of the investigated variables. Loss on ignition identified higher concentration of sedimentary organic matter (TOM%) suggesting the autochthonous input derived largely from macro-and micro-phytoplankton, remnants of the biota etc. Similarly, the higher concentrations of total carbonates (CAR%) are attributed to autochthonous input being associated with biogenic debris. Generally, the particle size results exhibited that the lacustrine samples belong to the textural categories as sandy silt and silt. The spatial distribution of major (CaCO3%, TOC%, Fe2O3%), minor (MnO%) and trace components (Rb, Sr, Zr mg/kg) is considerably influenced by the sediment catchment basin lithology. Technophilic elements results (As, Cr, Cu, Hg, Ni, Pb, V and Zn) were related to the maximum allowable limits (MAL) and/or to the natural background reference values stipulated by the national environmental references. Based on the results of contamination analysis, most of the heavy metals (Cr, Cu Pb and Zn) were below the limits (MAL), implying that they have insignificant environmental risk. Instead, the obtained results implied a relatively high concentration of As, Hg, Ni and V, which exceed the corresponding reference standards in some samples. This may be attributed to the presence of allochthonous elevated concentrations of metals transported by the main and secondary hydrographic network waterways up to the interdistributary depressions, or as a consequence of autochthonous input, reflecting a local signature of the natural geochemical fingerprint. The findings from this study provide useful information for the environmental risk assessment relating to the current environmental conditions within deltaic ecosystems as an integral part of the Danube Delta Biosphere Reserve, one of the world�s most important and vulnerable areas in terms of pollution, Danube River water levels, extreme weather conditions (floods and droughts), and other factors exacerbated by the climate change.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116010599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s14.49
Bilyana Grigorova-Pesheva, Kamelia Petrova, B. Malcheva
Microbiological studies of forest soils are an important field of research due to the role of forest as carbon sinks and the main role of microorganisms in biogeochemical cycle and in the transformation of organic mass. Microbiological monitoring of soils in forest ecosystems is of key importance to achieve accurate and comparable data. This paper examines the interrelationship of soil microbial communities with different environmental characteristics. For the purpose of the study, the influence of soil type, the influence of some soil parameters, tree composition and altitude on microbial abundance were analyzed. Basic soil parameters were evaluated - content of organic carbon and pH in water extract. For the purpose of the study, 20 representative sample plots were laid out in the territory of Vitosha nature park. The sample plots are in Cambisols and Umbrisols. The microbiological abundance of soils was determined. The total microbial number varied from 5.59 to 6.60 CFU log10/g soil mass. Cambisols have a higher microbial abundance. The sample plots with higher microbial abundance are concentrate at altitudes between 1200 m a.s.l. and 1500 m a.s.l. The data were evaluated statistically. Of greatest importance in the study sample plots is altitude, followed by organic carbon content. Sample plots under mix vegetation have greater microbial abundance. Under coniferous vegetation, the participation of micromycetes in the microbial communities clearly stands out.
{"title":"STUDY OF INFLUENCE OF SOIL TYPE, VEGETATION, ALTITUDE AND ORGANIC CARBON CONTENT ON SOIL MICROBIAL ABUNDANCE","authors":"Bilyana Grigorova-Pesheva, Kamelia Petrova, B. Malcheva","doi":"10.5593/sgem2022v/3.2/s14.49","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s14.49","url":null,"abstract":"Microbiological studies of forest soils are an important field of research due to the role of forest as carbon sinks and the main role of microorganisms in biogeochemical cycle and in the transformation of organic mass. Microbiological monitoring of soils in forest ecosystems is of key importance to achieve accurate and comparable data. This paper examines the interrelationship of soil microbial communities with different environmental characteristics. For the purpose of the study, the influence of soil type, the influence of some soil parameters, tree composition and altitude on microbial abundance were analyzed. Basic soil parameters were evaluated - content of organic carbon and pH in water extract. For the purpose of the study, 20 representative sample plots were laid out in the territory of Vitosha nature park. The sample plots are in Cambisols and Umbrisols. The microbiological abundance of soils was determined. The total microbial number varied from 5.59 to 6.60 CFU log10/g soil mass. Cambisols have a higher microbial abundance. The sample plots with higher microbial abundance are concentrate at altitudes between 1200 m a.s.l. and 1500 m a.s.l. The data were evaluated statistically. Of greatest importance in the study sample plots is altitude, followed by organic carbon content. Sample plots under mix vegetation have greater microbial abundance. Under coniferous vegetation, the participation of micromycetes in the microbial communities clearly stands out.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115593413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/3.2/s12.24
J. Cernák, Denisa Čiderová, Giorgi Benashvili
When considering the (sub)region of Central and Eastern Europe (CEE) and its position in the global economy in relative terms represented by trade openness, the European Union (EU) members from the CEE (sub)region tend to match or even exceed the EU average and EU membership underlines their potential. Recently, environmental concerns have become prominent in international trade and in the framework of its external relations the EU seeks to boost its ambition of a global player. Our paper is oriented on the economic diplomacy and environmental diplomacy theme � in terms of EU competences represented by �commercial diplomacy�, �trade diplomacy� and the �Green Deal diplomacy�. To promote more sustainable developments, the EU�s European Green Deal (2019) emphasises the Comprehensive Strategy of the EU with Africa and this is why the aim of our paper was to assess the EU�s interests in transregional sense by applying the Pareto-optimal scenario/the Nash equilibrium to the qualitative hypothesis formulated: �Geostrategic interests of China and of the postBrexit EU in the process of shaping a new EU strategy towards Africa are partly of a rival and partly of a complementary nature�. When documenting quantitative & qualitative sustainable development trends in the context of international spillovers and relevance of both transregional complementarity & rivalry between the EU and PRC/China, our paper addressed the United Nations 2030 Agenda as well as the African Union Agenda 2063.
{"title":"SUSTAINABLE ECONOMIC DEVELOPMENT FROM GLOBAL PERSPECTIVE: TRANSREGIONAL EUROPEAN UNION ECONOMIC DIPLOMACY AND �GREEN DEAL DIPLOMACY�","authors":"J. Cernák, Denisa Čiderová, Giorgi Benashvili","doi":"10.5593/sgem2022v/3.2/s12.24","DOIUrl":"https://doi.org/10.5593/sgem2022v/3.2/s12.24","url":null,"abstract":"When considering the (sub)region of Central and Eastern Europe (CEE) and its position in the global economy in relative terms represented by trade openness, the European Union (EU) members from the CEE (sub)region tend to match or even exceed the EU average and EU membership underlines their potential. Recently, environmental concerns have become prominent in international trade and in the framework of its external relations the EU seeks to boost its ambition of a global player. Our paper is oriented on the economic diplomacy and environmental diplomacy theme � in terms of EU competences represented by �commercial diplomacy�, �trade diplomacy� and the �Green Deal diplomacy�. To promote more sustainable developments, the EU�s European Green Deal (2019) emphasises the Comprehensive Strategy of the EU with Africa and this is why the aim of our paper was to assess the EU�s interests in transregional sense by applying the Pareto-optimal scenario/the Nash equilibrium to the qualitative hypothesis formulated: �Geostrategic interests of China and of the postBrexit EU in the process of shaping a new EU strategy towards Africa are partly of a rival and partly of a complementary nature�. When documenting quantitative & qualitative sustainable development trends in the context of international spillovers and relevance of both transregional complementarity & rivalry between the EU and PRC/China, our paper addressed the United Nations 2030 Agenda as well as the African Union Agenda 2063.","PeriodicalId":331146,"journal":{"name":"SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114145050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：