9 research outputs found
The dynamics of the Akhangaran basin's groundwater level in relation to physical-geographical and anthropogenic factors
No full textThis article describes the physical and geographical factors of groundwater formation in the Akhangaran river basin and around the Almalyk mining and metallurgical combine (AGMK), changes in groundwater levels at water intakes, precipitation, and evaporation in the study area. Comprehensive research methods, include the analysis of scientific and technical information on the geographical, hydrogeological, geomechanical and mineralogical compositions of the Almalyk industrial region, underground and surface waters, as well as the study of all valuable components by chemical, and X-ray structural methods, and atomic emission spectroscopy. Integration and point methods are used for measuring current velocity. Basic, detailed, abbreviated and graphical methods for measuring water flow are perfomed by electric metrs. Experimental filtration studies are carried out and systems of observation wells are organized. Additionally water temperature is measured with thermocouples and water density, salt concentration, and water pH are measured using ionomers
WATER RESOURCES OF UZBEKISTAN AND THEIR EFFECTIVE USE OF THE PROVISION OF POPULATION WITH DRINKING WATER
No full textThis article provides information on water resources of Uzbekistan, the annual water consumption in the country, issues of drinking water supply, solutions, ongoing and planned work on the provision of drinking water in Uzbekista
Biochemical processes of Suaeda arcuate under in vitro conditions
No full textThis article presents data on the introduction of in vitro culture and microclonal propagation of plants identified in the group of hyperhalophytes belonging to the species Suaeda arcuata Bunge. Biochemical changes in plants (carbohydrates accumulation), in a comparative aspect, in clones-regenerates of perspective halophytes are grown in nutrient medium with different salt concentrations and under natural growing conditions in drained bottom of the Aral Sea, for identifying their adaptation strategies, and the level of evolutionary development. This study was carried out to optimize the composition of nutrient media for the main stages of reproduction in vitro, as well as studies on the rooting and adaptation of regenerates for species of the genus Suaeda obtained from axillary or apical buds, but more often from stem segments with a node. In this work, hormones of the cytokine and auxin series, or a combination of them, were added to the nutrient environment for growth activation. The analyzing of microplants for the content of soluble in water B vitamins was carried out. As a result of the research, it was found that intact Suaeda arcuata plants in their natural habitats produce a large amount of soluble in water vitamins: riboflavin-0.062% and thiamine up to 0.006%. And in regenerated plants obtained on media without hormones, the content of vitamins was: B2 0.053%, B1 0%, respectively, and with a combination of 1/2 MS + 1 mg/l 6-BAP + 0.3 mg/l IAA + 2, 4-D, the content of vitamins varied as follows: riboflavin-0.059%, folic acid-0.030%, and thiamine was not detected. The cultivation of regenerates on the environment 1/2 MS + 1 mg/l 6-BAP + 0.3 mg/l IAA + 2,4-D showed the best effect on the growth of regenerants, created the possibility of obtaining the maximum amount of biomass and accumulation of B vitamins
Global climate change and its negative consequences
No full textIn the emergence of global problems of nature and man, these problems have natural anthropogenic roots; the presence of periodic changes in climatic processes; the atmosphere is the shell surrounding planet Earth., natural factors that shape the climate, astronomical, geographic, circulation factors, the increasing influence of anthropogenic activities on the chemical and physical composition of the atmosphere; ;rapid development of natural resources, rising sea levels and water pollution, rapid growth of natural and industrial disasters, increasing anthropogenic impact on the atmosphere; population of the globe, countries, cooperation of international organizations; wind, water, solar energy, renewable energy sources; methods and technologies that reduce methane emissions; technological and transport accidents; Fire safety; continued promotion of climate change; our planet is our common home; improving the technology for rational waste disposal in manufacturing sectors; search for the geographical basis for changes in the indicators and consequences of climate warming within regions and its elimination; promoting issues in this topic
Global climate change and its negative consequences
No full textIn the emergence of global problems of nature and man, these problems have natural anthropogenic roots; the presence of periodic changes in climatic processes; the atmosphere is the shell surrounding planet Earth., natural factors that shape the climate, astronomical, geographic, circulation factors, the increasing influence of anthropogenic activities on the chemical and physical composition of the atmosphere; ;rapid development of natural resources, rising sea levels and water pollution, rapid growth of natural and industrial disasters, increasing anthropogenic impact on the atmosphere; population of the globe, countries, cooperation of international organizations; wind, water, solar energy, renewable energy sources; methods and technologies that reduce methane emissions; technological and transport accidents; Fire safety; continued promotion of climate change; our planet is our common home; improving the technology for rational waste disposal in manufacturing sectors; search for the geographical basis for changes in the indicators and consequences of climate warming within regions and its elimination; promoting issues in this topic
Biochemical processes of
No full textThis article presents data on the introduction of in vitro culture and microclonal propagation of plants identified in the group of hyperhalophytes belonging to the species Suaeda arcuata Bunge. Biochemical changes in plants (carbohydrates accumulation), in a comparative aspect, in clones-regenerates of perspective halophytes are grown in nutrient medium with different salt concentrations and under natural growing conditions in drained bottom of the Aral Sea, for identifying their adaptation strategies, and the level of evolutionary development. This study was carried out to optimize the composition of nutrient media for the main stages of reproduction in vitro, as well as studies on the rooting and adaptation of regenerates for species of the genus Suaeda obtained from axillary or apical buds, but more often from stem segments with a node. In this work, hormones of the cytokine and auxin series, or a combination of them, were added to the nutrient environment for growth activation. The analyzing of microplants for the content of soluble in water B vitamins was carried out. As a result of the research, it was found that intact Suaeda arcuata plants in their natural habitats produce a large amount of soluble in water vitamins: riboflavin-0.062% and thiamine up to 0.006%. And in regenerated plants obtained on media without hormones, the content of vitamins was: B2 0.053%, B1 0%, respectively, and with a combination of 1/2 MS + 1 mg/l 6-BAP + 0.3 mg/l IAA + 2, 4-D, the content of vitamins varied as follows: riboflavin-0.059%, folic acid-0.030%, and thiamine was not detected. The cultivation of regenerates on the environment 1/2 MS + 1 mg/l 6-BAP + 0.3 mg/l IAA + 2,4-D showed the best effect on the growth of regenerants, created the possibility of obtaining the maximum amount of biomass and accumulation of B vitamins
Desertification of arid highlands and its ecological and social consequences
No full textDesertification in arid mountain regions, anthropogenic impact on natural systems, deforestation, erosion processes, modern forests, Zarafshan basin, key features of modern forest cover in the mountains, stationary research, environmental situation and its social consequences. In the forests of the Zarafshan Valley, there were once willows, tamarisk, poplars, mulberry trees, elms, and dense thicket groves. However, today, cultural plants have replaced the forests. Currently, small patches of forest still exist in the area. The mountainous part of the Zarafshan River basin covers 0.75%. In the mountainous regions, there are Turkistan junipers and Zarafshan junipers. In ancient times, the mountainous part of the Zarafshan River basin had a forest cover. Even in those times, the Urgut and Qoratepa mountains were completely covered with forests. For centuries, the trees and shrubs on the slopes of the mountains have been a source of construction materials and fuel for the local people. The preparation of charcoal, pistachios, and almonds in the Nurota and Pistalitov mountains, as well as the juniper forests in the Zarafshan and Turkistan mountains, has led to the complete destruction of these forests. Traces of juniper forests in the Urgut, Qoratepa, Nurota, Zirabuloq, and other mountains have remained in the form of remains, surviving juniper trees, and place names. One of the factors of desertification is the active use of pastures. Over the centuries, human economic activities have influenced the deforestation and degradation of the slopes and foothills. The erosion processes have intensified, and up to 90% of the vegetation on the mountain slopes has been washed away. The groundwater levels have decreased, leading to the disappearance of springs. Often, the main cause of the reduction in river flow is the decreased annual water movement. Deforestation of the mountains has become a significant factor in aridifying and xerophytizing the entire plant cover of Central Asia. All of this accelerates erosion over geological time, leading to the redistribution of materials in the "mountain plains" system. The development of the "Forest Melioration" program and the implementation of programs to establish "Green" energy sources are necessary steps to address these issues
The effect of the Almalyk-Akhangaran industrial zone on changes in the groundwater level of the Ahangaran river basin
No full textThis article describes the state of groundwater and surface waters in the Akhangaran River basin, around the Almalyk Mining and Metallurgical Combine (AMMC), the amount of water consumed by the population of the city of Almalyk, the amount of precipitation in the region, and the annual flow regime of existing canals in the region. Comprehensive research methods, include the analysis of scientific and technical information on the geographical, hydrogeological, geomechanical and mineralogical compositions of the Almalyk-Akhangaran industrial zone, underground and surface waters, as well as the study of all valuable components by chemical, and X-ray structural methods, and atomic emission spectroscopy. Integration and point methods are used for measuring current velocity. Basic, detailed, abbreviated and graphical methods for measuring water flow are perfomed by electric metrs. Experimental filtration studies are carried out and systems of observation wells are organized. Additionally water temperature is measured with thermocouples and water density, salt concentration and water pH are measured using ionomers
The effect of the Almalyk-Akhangaran industrial zone on changes in the groundwater level of the Ahangaran river basin
No full textThis article describes the state of groundwater and surface waters in the Akhangaran River basin, around the Almalyk Mining and Metallurgical Combine (AMMC), the amount of water consumed by the population of the city of Almalyk, the amount of precipitation in the region, and the annual flow regime of existing canals in the region. Comprehensive research methods, include the analysis of scientific and technical information on the geographical, hydrogeological, geomechanical and mineralogical compositions of the Almalyk-Akhangaran industrial zone, underground and surface waters, as well as the study of all valuable components by chemical, and X-ray structural methods, and atomic emission spectroscopy. Integration and point methods are used for measuring current velocity. Basic, detailed, abbreviated and graphical methods for measuring water flow are perfomed by electric metrs. Experimental filtration studies are carried out and systems of observation wells are organized. Additionally water temperature is measured with thermocouples and water density, salt concentration and water pH are measured using ionomers
