Rational Use Of Water Resources Research Articles

УСТОЙЧИВОЕ РАЗВИТИЕ КАЗАХСТАНА: РОЛЬ ЗЕЛЕНОЙ ЭКОНОМИКИ

The article provides an overview of the current state of the transition to a "green economy" with an emphasis on the development of renewable energy sources, eco-friendly construction, clean transport, waste management, organic agriculture with an emphasis on sustainability and efficiency, as well as the rational use of water resources. Special attention is paid to the main risks, problems and barriers that hinder the development of the "green economy" in Kazakhstan, as well as recommendations and measures to overcome existing difficulties are proposed. The article discusses the methods by which the government plans to make the transition to a "green economy", as well as the tasks associated with the implementation of this large-scale project. The material can be useful for everyone who is interested in sustainable economic development, including government agencies, energy companies, investors in renewable energy sources and society as a whole.

Applicability of a Modified Gash Model for Artificial Forests in the Transitional Zone between the Loess Hilly Region and the Mu Us Sandy Land, China

Afforestation in the transitional zone between the loess hilly area and the Mu Us Sandy Land of China has reshaped the landscape and greatly affected eco-hydrological processes. Plantations are crucial for regulating local net rainfall inputs, thus making it necessary to quantify the closure loss of plantation species in drought and semi-arid areas. To quantify and model the canopy interception of these plantations, we conducted rainfall redistribution measurement experiments. Based on this, we used the modified Gash model to simulate their interception losses, and the model applicability across varying rainfall types was further compared and verified. Herein, Caragana korshinskii, Salix psammophila, and Pinus sylvestris plantations in the Kuye River mountain tract were chosen to measure the precipitation distribution from May to October (growing season). The applicability of a modified Gash model for different stands was then evaluated using the assessed data. The results showed that the canopy interception characteristics of each typical plantation were throughfall, interception, and stemflow. The relative error of canopy interception of C. korshinskii simulated by the modified Gash model was 8.79%. The relative error of simulated canopy interception of S. psammophila was 4.19%. The relative error of canopy interception simulation of P. sylvestris was 13.28%, and the modified Gash model had good applicability in the Kuye River Basin. The modified Gash model has the greatest sensitivity to rainfall intensity among the parameters of the C. korshinskii and S. psammophila forest. The sensitivity of P. sylvestris in the modified Gash model is that the canopy cover has the greatest influence, followed by the mean rainfall intensity. Our results provide a scientific basis for the rational use of water resources and vegetation restoration in the transitional zone between the loess hilly region and the Mu Us Sandy Land. This study is of import for the restoration and sustainability of fragile ecosystems in the region.

ESG transformation of water supply and sewerage enterprises in the Russian Federation to achieve sustainable development goals

Subject. This article discusses the issues of modernization of water supply and sewerage systems, housing and communal services as a whole, and the problem of rational use of water resources. Objectives. The article aims to determine areas for the development of water supply and wastewater disposal organizations, and develop mechanisms to reduce the negative impact of industry enterprises on the environment. Methods. For the study, I used the general scientific research methods. Results. The article finds that the key task of the industry is to reduce the depreciation of fixed assets. It is necessary to reduce water consumption and losses in production processes and during transportation. Conclusions. The introduction of green technologies will help increase the investment attractiveness of the industry. The Government of the Russian Federation considers water supply and wastewater disposal as a priority sector that ensure the country's sustainable development.

Study on long short-term memory based on vector direction of flood process for flood forecasting

Accurate flood forecasting is crucial for flood prevention and mitigation, safeguarding the lives and properties of residents, as well as the rational use of water resources. The study proposes a model of long and short-term memory (LSTM) combined with the vector direction (VD) of the flood process. The Jingle and Lushi basins were selected as the research objects, and the model was trained and validated using 50 and 49 measured flood rainfall-runoff data in a 7:3 division ratio, respectively. The results indicate that the VD-LSTM model has more advantages than the LSTM model, with increased NSE, and reduced RMSE and bias to varying degrees. The flow simulation results of VD-LSTM better match the observed flow hydrographs, improving the underestimation of peak flows and the lag issue of the model. Under the same task and dataset, with the same hyperparameter settings, VD-LSTM can more quickly reduce the loss function value and achieve a better fit compared to LSTM. The proposed VD-LSTM model couples the vectorization process of flood runoff with the LSTM neural network, which contributes to the model better exploring the change characteristics of rising and receding water in flood runoff processes, reducing the training gradient error of input–output data for the LSTM model, and more effectively simulating flood process.

THE ROLE OF ESG BUSINESS REPORTING IN WATER MANAGEMENT

The rational use of water resources by business structures requires the development of appropriate strategies and their adherence to the chosen policy in terms of management of these objects: drawing up programs and plans, introducing environmental protection actions, displaying the economic effect and documenting all transactions, minimizing negative impacts on the environment and presentation of the positive and negative consequences of the use of natural resources in the format of ESG reporting, which discloses information about the activities of companies in the field of Environmental aspects, Social responsibility and Corporate Governance. This practice positions companies as an active participant in sustainable development and allows them to increase their own ratings, which makes it possible to have advantages in attracting investments and targeted financing, increasing one's own competitiveness due to improved trust in such companies, etc. Improving the quality of information in ESG reporting on water resources management and related processes allows stakeholders to receive complete and reliable information when making management decisions. On the basis of the study of ESG reporting of 8 corporations from Ukraine in terms of the use of water resources during the implementation of the strategy of sustainable development, positive and problematic practices of companies were identified when preparing the necessary data for reporting. During this analysis, the experience and legislative guidelines on the exploitation of water resources and the use of ecological and economic accounting of water in the countries were taken into account. In addition, approaches to applying the level of materiality in ESG reporting were analyzed when reporting in this format. The results of the study made it possible to rank the elements of water resources management of economic entities according to the rule of materiality of data in ESG reporting and to propose an algorithm for compiling ESG reporting in the part of water resources management, taking into account the level of materiality. The article substantiates the directions of providing companies with adequate information on water resources management measures and reflecting such practices in ESG reporting to meet the needs of internal and external users. The directions of further scientific research in the field of reporting on the use of water resources by various business entities are also outlined. A critical analysis of the peculiarities of ESG reporting in the area of water resources management can provide an opportunity for top managers of domestic companies to improve the quality of financial and non-financial information, which, in turn, will contribute to the improvement of the corporate governance system on the one hand, and on the other hand, improve the satisfaction of information users. requests of all stakeholders when making their own management decisions.

Water resources of the Podilia region and their use

Purpose. To analyze the state of water resources of the Podilsk region and the territorial features of water use in order to optimize their use. Methods. Methods of system-structural analysis, statistical, cartographic, modeling. Rresults. The current state and peculiarities of the use of water resources in the territory of the administrative districts of the Podilsk region were analyzed according to the indicators of total water intake from natural water bodies, the use of fresh water in general and the sectoral structure of water use. The main consumers of water resources in the region are industrial enterprises and housing and communal services. The largest share of underground water intake is in Ternopil Oblast, and the smallest in Vinnytsia, which is related to natural reserves of underground water. The largest volumes of water intake from natural water bodies and the use of fresh water are observed in the Khmelnytskyi region, and the smallest - in the Ternopil region. The analysis of the dynamics of water use indicators over the period 2020-2022 determined a decrease in the volume of water intake, especially in 2022, in all regions of the region. The largest share of water is used in the regions of the region for production needs. Conclusions. The dynamics of water consumption in all regions of the region has a tendency to decrease the volume of water intake. There are certain differences in the amount of surface and underground water intake. For many administrative districts and territorial communities, the problem of rational use of water resources is relevant.

Evaluation of surface water quality and carrying capacity as planned by 2030 in the Lai Giang River basin, Binh Dinh Province, Vietnam

The quality of surface water in the river basin under the influence of industrial development and urbanization is one of the issues that need attention in the management of water resources in Binh Dinh province. The study assessed water quality in the Lai Giang river basin gives an overview of the surface water quality situation and predicts future changes in wastewater reception through the 2030 planning scenario. The study corrected the NAM model flow at An Hoa hydrological station with R2 = 0.777 and BIAS = 5%. The results of adjustment of water level and flow in 2016 for R2 are 0.893 and 0.731, respectively. The test of water level and flow in 2017 for R2 is 0.882 and 0.582 respectively, along with the test result of water level in 2021 is 0.689. The calculation of the current carrying capacity in 2021 and the planning scenario in 2030 shows that there is still capability to receive, but consideration should be given to rational use of water resources.

Demoeconomics: the interconnection of water resources and demoethical values

Object: Application of conceptual analysis within the framework of the concept of demoeconomics to study the relationship of water resources with the values of “Demoethics” as a tool for society sustainable development. Methods: This work uses a systematic approach to research, which includes a wide variety of techniques, such as the method of logical synthesis, goal setting, goal decomposition, etc.
 Findings: The implementation of the demoeconomics concept, based on the demoethics values in the context of “spirituality and morality”, “rationality”, “responsibility”, “justice” and “security” contributes to the effective provision of rational use of water resources and basic needs of the population. The results of the Concept are aimed at achieving ethical rationality. Harmonizing with the Sustainable Development Goals (SDG), they not only promote economic growth and meet the needs of society, but also create the preconditions for reducing socio-economic inequality, increasing economic responsibility and respect for cultural and spiritual values.
 Conclusions: The sustainability of ethical rationality requires the transformation of the values of members of society when using natural resources based on the concept of demo-economics, based on the values of demo-ethics in the context of “spirituality and morality”, “responsibility”, “justice”, “rationality” and “security”, which can provide a balance between economic, social and environmental needs of humanity, to the manifestation of moral behavior in any life situation, contributing to the sustainability of the quality of life of members of society and the competitiveness of the region.

Main directions for rational use of water resources in the Republic of Kazakhstan

The article identifies the main directions of the rational use of water resources in the Republic of Kazakhstan, specifically, the South Kazakhstan region. Rational water use is the process of efficient use of water resources, which guarantees the preservation and protection of water bodies from negative and excessive anthropogenic impact and at the same time provides the population and sectors of the national economy with water resources of adequate quality and in the amount that can guarantee not only satisfaction of needs, but also development of industry, energy, water transport and agriculture at the rates that are necessary for sustainable socio-economic development of the Republic of Kazakhstan as a whole. The analysis of the foundations of rational water use was carried out; the main economic instruments affecting the process of water use in Kazakhstan are considered, an overview of the structure of water resources management in the South Kazakhstan region is made. Currently, it is necessary to ensure the rational use of natural resources, their protection from pollution and degradation, as well as skillfully restore, multiply and control them for the benefit of human society. Water resources as an object of management are a complex phenomenon and require a special approach for the formation of governing bodies with a clear division of their sphere of influence and responsibility.

Efficiency of the Sprinkling Irrigation Method for Irrigation Of Soybean And Cauliflower

In order to reduce the population's need for food and rational use of water resources in the conditions of typical irrigated gray soils Tashkent region, the sprinkling irrigation method was used for soybean crops "Nafis" and cauliflower "Raskot", while taking into account the volumetric mass of the soil, soil porosity, soil permeability. This is explained by the fact that the timing of irrigation, given to crops, irrigation rates, seasonal irrigation rates, the impact on growth, the development and productivity of plants are described

Rainfall-runoff partitioning in small watersheds of different vegetation types in the loess area based on hydrogen and oxygen isotope tracing.

Recognizing watershed runoff process and its component sources is a prerequisite for the rational use of water resources. To elucidate the effects and quantitative contributions of various vegetation types on the components of watershed runoff, we centered on the Caijiachuan main channel watershed in Jixian, Shanxi and five sub-watersheds with distinct vegetation types. By tracking the hydrological responses to two representative rainfall events and assessing the spatiotemporal variations in hydrogen and oxygen isotope signatures, we aimed to discern disparities in the runoff processes across these sub-watersheds and pinpoint their constituent origins. The results showed that under medium rainfall condition, the contribution rates of event water to the river flow of each watershed were in an order of protected forest (94.3%) > Caijiachuan main channel (83.1%) > agro-pastoral composite (64.3%) > plantation-secondary forest (52.4%) > cropland (0.3%) > secondary forest (0.0%); under light rainfall condition, plantation-secondary forest (52.4%) > protected forest (58.5%) > cropland (40.6%) > secondary forest (15.8%) > agro-pastoral composite (12.5%) > Caijiachuan main channel (9.3%). The event water contribution rate of secondary forest and protected forest watersheds to runoff was higher than that of plantation watersheds. The secondary forests watersheds had a stronger runoff storage capacity. The event water contribution rate of protected forest and agro-pastoral composite watersheds under medium rainfall intensity condition was greater than that under light rainfall intensity condition, while the event water contribution rate of cropland, plantation-secondary forest, and secondary forest watersheds was in adverse. The event water contribution to the runoff of forested watersheds was greater than that of cropland watersheds, which may be related to the presence of silt dams at the mouth of agricultural watershed channels. This study can provide a scientific basis for the analysis of water conservation and runoff change attribution in the loess area of west Shanxi.

Quantitative analysis of spatiotemporal disparity of urban water use efficiency and its driving factors in the Yangtze River Economic Belt, China

Study regionYangtze River Economic Belt, China Study focusAs the major national strategic development area of China, there have always been vital problems about imbalance of the water resources distribution and the disparity of economic levels in YREB. Quantitative analysis of water use efficiency (WUE) is essential to the rational use of water resources, as well as the sustainable development. In this study, a WUE evaluation index system for prefecture-level cities in the YREB was constructed, and Super-Efficiency Data envelopment analysis Slacks-Based Measure (DEA-SBM) model, Global Malmquist-Luenberger productivity index, combined with geographically weighted regression model were utilized to measure and identify the spatiotemporal evolution characteristics of WUE and its influencing factors. New hydrological insights for the regionFrom the temporal perspective, the WUE manifests a significant upward trend from 2005 to 2020, and the growth presents lower reach > middle reach > upper reach; in the spatial pattern, the WUE has significant spatial divergence characteristics, high WUE mainly occurred in developed leading cities, while developing cities in the midstream and upstream tended to be inefficient; various effects on WUE were also analyzed, highlighting that technical advancement was the key driver of WUE evolution. Then the negative effects of industrial structure and urban environment was becoming more and more significant. Finally, effective measures for upstream, middle and downstream cities in the YREB were discussed.

Legal bases of the Water Code of the Republic of Kazakhstan

The relevance of the research topic is due to the fact that water security in recent years has been included in the list of global risks of modernity, which requires effective water resources management. In particular, in the Republic of Kazakhstan, this issue has been one of the most acute recently. To date, there are a number of unresolved issues at the inter-national level of water resources management in the republic, as almost all freshwater resources of the country are transboundary in nature, and almost half of them are formed on the territory of neighbouring states. The purpose of this study is to analyse the existing problems in transnational water resources management in the Republic of Kazakhstan and to develop directions for their solution. The research methods include normative-legal method, expert, factual method, content analysis, comparison, generalisation, classification, synthesis and analysis. The article presents the state of water resources of the Republic of Kazakhstan at the present stage of development, including those of transboundary nature. The management of water resources of the republic, including at the inter-national level, is characterised, and problems in this area are revealed. Thus, the main problems to date have been attributed to: dependence on transboundary flows from the territories of neighbouring countries, primarily China and Russia, in recent years increasingly polluting rivers and increasing the volume of water withdrawal, significant wear and tear of infrastructure, low level of automation and digitalisation of management, low efficiency of control over the implementation of measures for the rational use of water resources. To solve the problems, recommendations have been proposed and promising directions for the development of transnational water resources management have been considered, which will contribute to improving the efficiency of transboundary water resources use.

Sustainable Green Development: Water-Saving Irrigation Technologies

In the context of global climate change and increasing demand for natural resources, sustainable development requires the introduction of innovative technologies that contribute to the conservation and rational use of water resources. This article aims to examine water-saving irrigation technologies. The efficiency of the sprinkler irrigation system is affected by the wind flow and evaporation. Therefore, the comparison of designed and measured values of discharge from a nozzle and throwing radius of three sprinklers for 6 pressured head were done. Experiment was conducted at Uchxoz district, Tashkent region, Uzbekistan with latitude 69.248903 and longitude 41.037240. The place is 2 ha and experiment were at wheat crop. Irrigation system has been taken from Chirchik river. Sprinkler system installed with 9 to 12 m distances connect with a soil condition and slope. Because of importance of natural conditions, especially wind drift and radiation connect with the evaporation, research was performed at these losses. Furthermore, the calculation of wind drift and evaporation losses based on the observed values was calculated. The measured values of the discharges were lower as the designed one in all cases from 71% to 83%. Furthermore, we can conclude that the smallest differences were observed during the experiment with highest radius with smallest pressure head. The real radius of wetter area was from 80% to 88% of the designed radius by producer. The results showed the need to use the higher number of sprinklers or higher pressure to irrigate the required area.

INTERNAL AND EXTERNAL FACTORS OF USE AND CONSERVATION OF WATER RESOURCES IN ZHYTOMYR REGION

The water resources of Zhytomyr region are an important national asset, the condition of which affects people's health, economic development and the "good" environmental condition of the region. The current state of water resources in Zhytomyr region is of some concern due to a number of challenges, including: water pollution with organic materials, nutrients and toxic elements due to incomplete or no wastewater treatment, leaching of pollutants from agricultural land and plastic waste. The challenges also include limited access to quality drinking water in some regions, underdeveloped water supply and sanitation systems, unregulated water consumption and violations of water protection regulations, and hydromorphological changes related to hydropower and water flow regulation, including problems with coastal protection zones and water protection zones, as well as the effects of climate change, including floods and droughts.Taking this into consideration, conducting a SWOT analysis for the use and conservation of water resources in Zhytomyr region gets a particular relevance. The purpose of the study is to conduct a SWOT analysis that will not only allow a deeper analysis of the strengths and weaknesses of the regional water management system, but also to identify potential opportunities for improvement and risk reduction. The SWOT analysis will serve as the basis for developing strategies that will promote the conservation and rational use of water resources, strengthen the environmental well-being of the region, and ensure sustainable economic development and public health in Zhytomyr Region.

HYDROGEL BASED ON STARCH, ACRYLAMIDE AND KAOLINE

The reduction of water resources in Central Asia forces agriculture to switch to water-saving technologies in the future. One of the ways of rational use of water resources is the use of highly swelling polymer hydrogels (HSP). A hydrogel based on starch, acrylamide, and kaolin was obtained based on a radical copolymerization reaction. In these studies, a superabsorbent composite was synthesized, obtained by the reaction of grafted copolymerization of acrylamide and potato starch in a ratio of 2:1, based on starch, acrylamide, and kaolin. Studies have shown that a superabsorbent composite with the best properties was obtained using 1 wt. % potassium persulfate, 0.8 wt. % methylene bisacrylamide and 2 wt. % aqueous kaolin solution. The rate of swelling of the hydrogel was determined, and it was shown that the moisture absorption of the hydrogel reached 890 g. This proposed method of producing super absorbent composites using natural resources such as starch, and kaolin, of course, reduces the cost of production and also makes the material environmentally friendly.

Ensuring climate resilience in Central Asia through the establishment of a water management education program

Abstract This article is devoted to the issues of sustainable development in the Central Asia region. The authors have performed an analysis of the state of rational use of water resources. Ensuring climate resilience in water management in Central Asia is a critical challenge in today's world. This problem is of interest in connection with its possible impact on the sustainable development of the region. The purpose of this work is to analyze the current state of the rational use of water resources in Central Asia to identify ways to optimize their management. The study used a qualitative and quantitative analysis of data on water use collected from various sources, as well as a comparison method to assess the effectiveness of existing water management practices in the region. The authors revealed that the unbalanced distribution and inefficient use of water resources in Central Asia led to environmental and socio-economic problems. It has also been found that the existing mechanisms for managing water resources are not effective enough.

ATTRIBUTION ANALYSIS OF CLIMATE CHANGE AND HUMAN ACTIVITIES TO WATER VOLUME VARIATION IN LARGE LAKES

Abstract. Lakes are important components of the Earth's surface water bodies, and their fluctuating water levels and changing water volumes can have an important impact on ecological processes and landscape patterns within a watershed. Climate change and human activities are the main drivers of water volume changes in lakes. We applied a long time series analysis approach using classical statistics and geographic information system (GIS) technics to quantitatively attribute water volume variations in Lake Victoria from 2000 to 2019. We examined several drivers of lake water volume variations: meteorological factors including regional climate change (precipitation, evaporation) and global climate change (El Niño/Southern Oscillation events), and anthropogenic factors including socio-economic development and land use/cover change. The results show that regional climate change has a greater impact on lake water volume variations than global climate change; among them, the correlation coefficient between precipitation and lake water volume variations is the largest (0.410), with an impact lag of 1 month. For anthropogenic factors, variations in lake water volume are more pronounced in areas with rapid economic development and high population growth, with correlation coefficients greater than 0.440. Different types of land use/cover have varying impacts on Lake Victoria's water volume variations. Overall, the influence of anthropogenic factors is greater than that of meteorological factors. This study results not only provides a scientific basis for exploring the hydrological changes and their drivers in the world's large transboundary lakes, but also be great scientific significance to rational use of water resources and sustainable regional development.

ASSESSMENT OF CHANGES AND USE OF WATER RESOURCES IN THE SYRDARYA RIVER

Rational use of water resources is of current importance in the integrated use and regulation of flow. Therefore, a water management calculation is needed that will allow water resources to be distributed efficiently and unacceptably, without allowing them to be overused. The article discusses issues of assessing the water resources of the Aral-Syrdarya water basin. To analyze the hydrological characteristics of the basin under study, series of annual water runoff were reconstructed and chronological graphs of annual runoff were constructed. At calculating the parameters of the annual runoff, total and difference integral curves were constructed, the values of the annual runoff were determined using all sets of data from hydrological posts of the studied Syrdarya River basin. The main statistical parameters of the annual river runoff, random errors in the mathematical expectation and the coefficient of variation were assessed.
 For water management calculations, data from the report of the Aral-Syr Darya Basin Inspectorate on regulation of the use and protection of water resources for 2016, as well as the Scheme for the integrated use and protection of water resources in the river basin, were used. Syrdarya for 2018.
 Analysis of the water balance for the periods 2010-2018. takes into account that the incoming part of the water balance of the Aral-Syrdarya river basin was 81,690.69 million m3, the outgoing part was 82,446.35 million m3. Based on the data, a water balance was compiled and an analysis was made that the flow decreased by 755.66 million m3, which naturally affected the decrease in the level of the Aral Sea. Also, according to the water balance of the Shardara, Badamskoye, Bugunskoye and Kapshagai reservoirs, accumulation was positive. But in the Koshkurgan reservoir, accumulation was negative.

CONTEMPORARY ISSUES OF INTERNATIONAL LEGAL REGULATION OF TRANSBOUNDARY WATER MANAGEMENT

The issues of rational use of water resources occupy the main place in the sphere of sustainable development of both the Central Asian region (CA) and Uzbekistan. According to the UN Water and Sustainable Development Programme, water resources are a fundamental factor for social, economic and environmental components of sustainable development.Despite the fact that Central Asia is one of the regions with abundant water resources, experts predict that water scarcity will only increase over the next decades, which makes it necessary to resolve the problem promptly.