Hydroecological role of forest in formation of regime of water resources

2015 ◽  
Vol 5 (3) ◽  
pp. 22-31 ◽  
Author(s):  
Дмитриева ◽  
Vera Dmitrieva ◽  
Нефедова ◽  
Yevgenia Nefedova

Intensive economic use of water resources as well as disregard for mechanisms of forma-tion of their composition and properties often leads to negative transformation of water bodies’ state. Reinforcement of forest capacity to protect water is one of the most important ways to conserve natural state of water resources. In considered Voronezh region insular forest distribution determines specific impact to elements of the water cycle and regulation of hydrological regime of water bodies.

The role of river runoff resources is very important for Kazakhstan – the country located deep within the continent, with an arid climate, and experiencing water shortage. With such a geographical location, the hydrological regime of rivers is characterized by the considerable spatiotemporal variability, thereby complicating the water resousrces management. The issue of evaluating water resources is particularly relevant not only from a scientific point of view. In recent years, it has gained socio-economic and political nature due to the increasing role of anthropogenic factors (including geopolitical ones), as well as increasingly more noticeable changes in the global and regional climate. Based on hydrometric information using modern methodology, the water resources of eight water-resources basins (WRBs) on the territory of Kazakhstan have been estimated in the context of water-resources regions.


2016 ◽  
Vol 7 (1) ◽  
pp. 24-33
Author(s):  
Jaunius Jatautas

Hydropower as a renewable energy source is a serious future alternative to organic fuel power and environmental protection. Its use is least damaging to the environment in comparison to thermal and nuclear power. Hydropower is a constant generating source and a type of energy that yields most return. Based on this approach, the article assesses the hydropower development, reveals the reasons behind the hindrance of renewable energy source development, evaluates the tendencies and development prospects, draws the conclusions and presents the recommendations. This article reflects the concept of the latest findings of scientific research and practical interface. Planning, design, construction and operation of hydropower facilities, must be determined on how they may affect the natural state of water bodies, it is imperative to analyze and assess the environmental protection effectiveness. Natural water bodies should not be modified without an environmental impact assessment


2020 ◽  
Vol 2 (1) ◽  
pp. 12-18
Author(s):  
Б. Тайванбат ◽  
О. Алтансүх ◽  
М. Энх-Үүр ◽  
K. Van Leeuwen ◽  
Steven H. A. Koop

The large number of people living together in urban areas requires a comprehensive solutions for issues such as the reasonable allocation and adequate use of natural resources, urban planning, and efficient waste management to meet the city's needs.  One of the main factors influencing the health and comfort of urban residents is the supply of clean water and sewerage systems. Therefore, in order to rationally allocate and use water resources to meet urban needs, and to create a healthy and comfortable living environment for city residents, it is necessary to develop an integrated water resources management plan at the national and basin levels, as well as an integrated water management plan and assessment for city level. In addition to assessing the current state of water management, it is important to identify factors and trends that may further strain water resources to prevent future risks. To address the pressures on water management in Ulaanbaatar and Darkhan, representing Mongolia's urban areas, the City Blueprint Approach, developed by the EU Water   Innovation Partnership and the Dutch Institute of Water Cycle, was used in this study. Currently, this approach is used in about 80 cities in more than 40 countries, it is a relatively new and innovative method among Asian cities. As a result, water management in Ulaanbaatar and Darkhan is hampered by both social, economic, and environmental factors.


Author(s):  
E. V. Obukhov

A current problem of reservoirs is their functioning in conditions of a changing climate. In such conditions, water resources management of water bodies as well as assessment their state and ongoing processes require permanent monitoring and analysis. The aim of the author of the present work was to study the intensity of external water exchange in Dneprodzerzhinsk reservoir, the horizontal and vertical components of the water cycle and the economic use of the water body. On the basis of the components of the water balance the external water exchange in the reservoir has been studied taking into account the yearlong water content during the whole period of the reservoir operation, viz. during the water-aboundant year1970, the law-water year 1972 and the very much law-water year 2015. Intensity factors and indicators of external water exchange for each month of the year, and for the months of the maximum and minimum intensity of the external water exchange during a unit of time, as well as the main factor influencing on the water exchange, viz. the lateral inflow in the reservoir have been determined. The maximum intensity of the external water exchange in the reservoir during a very dry year has deteriorated in the spring and autumn periods of its operation fourfold as compared with the one of the highwater year. It is determined that the higher the intensity of the external water exchange is, the less the indicator of the external water exchange during a unit of time is and the more intensively an exchange and self-purification of the water in the reservoir are being fulfilled. If the rate of external water exchange is less than one, then the shift of regulatory water resources of the reservoir will take place in less than a year. The results of the study can be useful in developing modes of reservoir operation in conditions of a climate change. 


2021 ◽  
Vol 273 ◽  
pp. 03007
Author(s):  
Dmitry Larin ◽  
Evgeny Mikhaylov ◽  
Elena Staseva

Intensive economic use of small rivers and channel water bodies leads to their pollution and siltation. The anthropogenic impact on aquatic ecosystems negatively affects the state of the fish industry, which leads to a reduction in the spawning fund, deterioration of the conditions for reproduction and survival of juveniles. Violation of the existing conditions for the habitat and reproduction of aquatic organisms leads to a decrease in the productivity of water bodies and the loss of their fishery value. The inflow from the catchment area of solid and liquid runoff containing organic matter, oil products and other impurities of anthropogenic and technogenic origin leads to irreversible entry, siltation and shallowing of small rivers and channel water bodies. The restoration of the disturbed hydrological regime of water bodies by means of reclamation works contributes to the restoration of natural spawning grounds for commercial fish species, an increase in yield and productivity.


2021 ◽  
Vol 7 (10) ◽  
pp. 31-37
Author(s):  
Sh. Gudratzade

The article is devoted to the grouping and brief classification of natural and artificial water bodies located on the territory of Azerbaijan, in order to organize their protection. Brief and systematized information is given on the main characteristics of rivers, lakes and reservoirs that are part of the group of surface watercourses and point water bodies, as well as on water resources. Systematized information can make it possible to take appropriate measures to organize the protection of water bodies, prepare regulatory documents and more efficient and economical use of water resources.


Formulation of the problem. Water is one of the most important resources in the world. The Volyn region has significant reserves of surface and underground water, but irrational use of water resources leads to their depletion. Furthermore, today the anthropogenic loading on natural ecosystems is increasing, this factor leads to the deterioration of the ecological state of water resources. So that, research the peculiarities of the water using and ecological state of water bodies and underground aquifers is necessary for conservation and restoration water resources of the region. Review of previous publications and studies. The problem of water use in the Volyn region was being studied by many scientists. The information base of this article includes number scientific works, published by K. I. Herenchuk, F. V. Zuzuk, L. V. Ilin, Ya. O. Molchak, R. V. Migas, M. R. Zabokrytska, V. K. Khil-chevskyi, V. O. Fesiuk, S. V. Polianskyi, T. S. Pavlovska, O. V. Ilina, M. A. Khvesyk, I. V. Sanina, H. H. Liutyi, L. I. Shevchuk and others. Moreover, statistical information about water use and state of water resources was given in the ecological passports, yearbooks of the Volyn region and Ukraine. Also, systematic observations of aquatic ecosystems are carried out by Regional water resources office in the Volyn region. Methods. The methodological base of the study is theoretical foundations of the doctrine of nature management. The authors applied mathematical-statistical, graphic and cartographic methods. Besides, methods of induction, deduction, comparative analysis and synthesis were used during the research. Results. The article is devoted to the study of water resources in the Volyn region, peculiarities of their use by the population and economy. The authors pay attention to the all sources of water in the Volyn region and characterize their distribution. It is mentioned that the most important source of water is aquifers. The authors give information about the structure of water use by type of economic activity. It is clarified that the largest consumers of water are agricultural enterprises and communal services. Agriculture consumes water resources for irrigation and other purposes, however, much water in this branch of economy is used irrationally. Also, large amount of extracted water is exploited for water supply of settlements in the Volyn region. But, only 5,5 % of the used water is consumed by industry, in particular, by food and sugar branch. Besides, the peculiarities of water usage in the administrative districts of the Volyn region are analyzed. The authors investigated that the biggest consumers of water are population and economy of Lutsk, Gorokhiv, Ivanychi and Volodymyr-Volynskiy districts, the least water usage is inherent for Shatsk, Lyubeshiv and Lokachinsky districts. Moreover, it is mentioned, that the features of water usage in the Volyn region change in time. For example, the amount of water consumption during 2000-2014 was decreasing as a result of social-economic causes. The article considers the problem of the influence of different sources of pollution on the water resources in the Volyn region. It is noted, that the most vulnerable to the anthropogenic loading are surface water bodies, they are polluted generally by untreated sewage. For example, river waters consist many pollutants, concentration of which exceeds the maximum permissible concentration. Scientific novelty and practical significance. The structure and dynamics of water consumption in the Volyn region is characterized for the first time. Particular attention is paid to the research of modern ecological state of surface and underground water resources in connection with water use and other economic activities. The results of this exploring will help to optimize water use and to conserve water resources.


2016 ◽  
Vol 77 (2) ◽  
Author(s):  
Academician Tan Sri Dato’ Ir. Shahrizaila Abdullah

Human overuse of water resources and diffuse contamination of freshwater are stressing the water resources in the terrestrial water cycle. As a consequence, the ecological functions of water bodies, soils and groundwater in the water cycle are hampered and being further exacerbated by threats from impending climate change. Though Malaysia is blessed with fairly abundant rainfall it still has its fair share of water woes, such as occasional droughts, looding and pollution of its rivers and water bodies. Only recently, the country was faced with water related hazards of fairly disastrous proportions. Recurring potable water shortages that occurred in 2014 and 2015 in several states had led to water rationing. Malaysia has since the early 1990s set its vision to become a fully developed country by the year 2020 (Vision 2020). The transformation of the water sector must also evolve in tandem to meet sustainable development goals beitting a developed nation status by 2020. The National Water Resources Policy (NWRP), launched in March 2012, is based on the 3 essential principles i.e. water resources security, water resources sustainability and collaborative governance. This paper will review the various water-related issues and challenges whilst proposing the implementation of the Integrated Water Resources Management (IWRM) Road Map including the measures to be undertaken to effect the transformation of the water sector in pursuit of Vision 2020 and to achieve the post 2015 Sustainable Development Goals (SDGs). The indings and recommendations are largely based on several in-depth studies undertaken by the Academy of Sciences, Malaysia (ASM) pertaining to the water sector and the IWRM agenda.


2016 ◽  
Vol 77 (2) ◽  
Author(s):  
Shahrizaila Abdullah

Human overuse of water resources and diffuse contamination of freshwater are stressing the water resources in the terrestrial water cycle. As a consequence, the ecological functions of water bodies, soils and groundwater in the water cycle are hampered and being further exacerbated by threats from impending climate change. Though Malaysia is blessed with fairly abundant rainfall it still has its fair share of water woes, such as occasional droughts, looding and pollution of its rivers and water bodies. Only recently, the country was faced with water related hazards of fairly disastrous proportions. Recurring potable water shortages that occurred in 2014 and 2015 in several states had led to water rationing. Malaysia has since the early 1990s set its vision to become a fully developed country by the year 2020 (Vision 2020). The transformation of the water sector must also evolve in tandem to meet sustainable development goals beitting a developed nation status by 2020. The National Water Resources Policy (NWRP), launched in March 2012, is based on the 3 essential principles i.e. water resources security,water resources sustainability and collaborative governance. This paper will review the various water-related issues and challenges whilst proposing the implementation of the Integrated Water Resources Management (IWRM) Road Map including the measures to be undertaken to effect the transformation of the water sector in pursuit of Vision 2020 and to achieve the post 2015 Sustainable Development Goals (SDGs). The indings and recommendations are largely based on several in-depth studies undertaken by the Academy of Sciences, Malaysia (ASM) pertaining to the water sector and the IWRM agenda.


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