scholarly journals Impact of ponds and reservoirs construction on the environmental safety of small river basins of the steppe zone of Ukraine (the case of Dnipropetrovsk region)

2020 ◽  
pp. 158-166
Author(s):  
V. G. Andrieiev ◽  
H. V. Hapich
Keyword(s):  
Water Management ◽  
River Basin ◽  
Water Use ◽  
Steppe Zone ◽  
River Basins ◽  
Environmental Safety ◽  
Environmental Hazards ◽  
Small River ◽  
Small Rivers ◽  
Ecological State

Formulation of the problem. For the last 30 years, water management in the basins of small rivers in the steppe zone of Ukraine has led to a deterioration of the environmental safety in water use. The current ecological state of small rivers is close to critical, and for today some river basins are subject to catastrophic environmental changes. Almost all small rivers from 70 to 100% in the south and central water-short regions of Ukraine are under regulation due to the construction of a large number of ponds and reservoirs. In most cases, this causes a lack of transportation and low self-cleaning ability. Thus, the conservation, restoration and rational use of water, based on the principles of basin management, should get started along with the improvement of the ecosystems of small rivers.Research results. The paper describes the dynamics of changes in water management, which shows a rapid increase in the number of new ponds in the period of 1990 - 2018 almost threefold. At the same time, the overall dynamics of water consumption in the region in the same period decreased fourfold. Unjustified imbalance between the construction of new facilities and water demand was determined, as well as non-compliance with the current statutory provisions. Due to the transformation of natural watercourses into cascades of "evaporator ponds" an ecologically dangerous transformation of small river basins with the change of hydrological, hydrochemical, hydrobiological and sanitary regimes takes place. To evaluate the level of environmental hazards associated with water management, it is proposed to determine the river fragmentation coefficient, which is the ratio of the number of ponds and reservoirs to the length of the river. When evaluating the environmental hazard for rivers in a specific territory (administrative area, district or catchment area), the fragmentation coefficient is determined by the ratio of the number of ponds and reservoirs to the size of the territory. Comparative analysis indicates that Dnipropetrovsk region is one of the most environmentally dangerous in terms of the negative impact of river basins fragmentation by artificial reservoirs. The case of a small river basin (the Nyzhnia Tersa River) presents the application of the approach to evaluate the level of environmental safety associated with water management. It is proposed a mechanism for increasing the level of environmental safety in water use by observing and implementing heterogeneous groups of indicators that determine the overall efficiency of the river ecosystem functioning.Conclusions. In order to stabilize and restore the hydrological and ecological state of small rivers in the steppe zone of Ukraine, it is important to: 1) make a detailed evaluation of the compliance of the available number of ponds and small reservoirs in river basins with the requirements of the Water Code of Ukraine; 2) prove ecologically and economically the feasibility of further operation for each individual reservoir and structure; 3) develop regional programs for the elimination of ponds and reservoirs that do not fulfil their water management functions and cause environmental hazards to the functioning of the river basin ecosystem; 4) improve methodological approaches to evaluation of the environmental safety of water facilities in small river basins.

scholarly journals ESTIMATION OF ANTHROPOGENIC LOAD ON THE VESELUKHA SMALL RIVER BASIN

2019 ◽  
pp. 82-87
Author(s):  
І. V. Gopchak ◽  
T. O. Basiuk
Keyword(s):  
Water Quality ◽  
River Basin ◽  
River Runoff ◽  
River Basins ◽  
Ecological Condition ◽  
The State ◽  
Small River ◽  
Anthropogenic Load ◽  
Ecological State ◽  
Small River Basin

Relevance of research. As a result of economic activities and irrational use of water and land resources in small river basins there are problems connected with pollution, destruction of natural landscape complexes of river valleys and adjoining territories, engineering reorganization of canals and floodplains as a result of melioration works. All these changes in river basins require operational control and response, which is possible only if real estimation of the level of anthropogenic load on river basins is carried out and the limits of permissible economic interference in their ecosystem are determined. The purpose of research – assessment of the ecological condition of the basin of the Veselukha River by the criteria of anthropogenic load. Research methods. The analysis of anthropogenic load and evaluation of the ecological condition of the Veselukha River basin was carried out in accordance with "Methodology for calculation of anthropogenic load and classification of the ecological state of small river basins of Ukraine". The calculation was made using the logic-mathematical model "Small River Basin", for four independent models of the main subsystems of the river basin: radioactive contamination of the territory, land use, use of river runoff, water quality. The quantitative and qualitative anthropogenic conditions by various indicators of four subsystems for classification of the ecological state of the river basin were estimated. Research results. According to the state of radioactive contamination, the area of the river catchment was estimated as "satisfactory". Based on the results of the analysis, the integrated value of land use was 3.7 and the state of the subsystem "Use of land" in the basin of the Veselukha river was determined as "good". The general state of river runoff use in the basin based on the joint effect of all these indicators of anthropogenic load on the state of the subsystem "Use of river runoff" was evaluated as "good" with a quantitative value of 3.0. The general condition of the subsystem "Water Quality" in the basin of the Veselukha River is characterized by the IV class of water quality, it corresponds to "polluted", with a quantitative level of -1. According to the results of the integrated assessment of all subsystems of the river basin, an induction coefficient of anthropogenic load (ICAN) was specified as is -1.0 and classifies the ecological state of the Veselukha River basin as "minor changes".

scholarly journals Methodological measurement basis environmental safety in construction and operation of water management facilities

2019 ◽  
Vol 126 ◽  
pp. 00066 ◽  
Author(s):  
V.L. Bondarenko ◽  
E.D. Hecuriani ◽  
O. V. Klimenko ◽  
E.A. Semenova
Keyword(s):  
Water Management ◽  
Natural Environment ◽  
Environmental Safety ◽  
Population Based ◽  
Technical System ◽  
Ecological State ◽  
Methodological Framework ◽  
Space And Time ◽  
Measurement Basis ◽  
Under Construction

Based on the results of monitoring studies of existing and under construction water management facilities within the basin geosystems of the Kuban, Lower Don and Terek river, using a systematic approachof developing methodological framework for assessing environmental safety in space and time on the model of the system “OP-SES-PM”, in which the vector properties are determined by the structure of this system. Taking the water management facility as a source of environmental safety, the concept of environmental safety is defined. Which is interconnected with the ecological state of the water managementfacility, considered as an “object of activity, as part of the environmental-technical system” “Natural environment-Object of activity-Population”. Based on the analysis of the processes of interaction between the components of the system “OP-SESPM” conceptual statements ofenvironmental safety have been formulated

scholarly journals Basin-centric approach to the sustainable development of agriculture in the context of climate change

2021 ◽  
pp. 5-13
Author(s):  
S.E. Dehodiuk ◽  
Е.G. Degodiyk ◽  
Yu.P. Borko
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Terrestrial Ecosystems ◽  
River Basins ◽  
Ecological Condition ◽  
Scientific Data ◽  
Small River ◽  
Nature Management ◽  
Small Rivers ◽  
Nature Restoration

The aim is to develop conceptual principles of sustainable development of the agrosphere and reproduction of degraded riverbeds of small rivers under climate change. Methods. Methodology and methods of system approach, monitoring, statistical analysis, and synthesis of scientific data. Results. It has been determined the ecological condition in Ukraine and the world has been by the manifestations of degradation processes in terrestrial ecosystems and small river basins on the principle of causation. It has been suggested the conceptual bases of restoration of channels of small rivers and their basins by carrying out engineering, culture-technical works in channels and floodplains of small rivers, the organization of adaptive landscaping of the territory, and also carrying out agro-, chemo-, bio- and phyto-meliorations in their basins without disturbance the basis of erosion and giving impetus to self-renewal of natural fauna and flora. In the processes of nature restoration, the leading role of domestic science in the methodological and methodological support of projects has been identified, and importance is attached to the restoration of natural biodiversity and biologization in agricultural systems. We proposed to create a state mortgage land bank with a concentration in it of land fees of ecological funds with the involvement of domestic and foreign investment. It is recommended to test the idea in several model pools of soil-climatic zones with further replication in Ukraine and the spread of technology beyond its borders. Conclusions. А systematic approach is needed to carry out reclamation works in the basins of small rivers is to implement the basin approach. To implement the program, the Verkhovna Rada of Ukraine must adopt the Law of Ukraine “On Agriculture, Sustainable Development of the Biosphere and Ecological Nature Management”, the project of which was developed at the NSC “Institute of Agriculture of NAAS”. The NSC “Institute of Agriculture of NAAS” with appropriate financial and personnel support on a multifunctional basis can perform the functions of a methodological center for the development of methodology and techniques of land management and reclamation in the process of restoring small river basins.

scholarly journals Effective Monitoring of Small River Basins

2002 ◽  
Vol 2 ◽  
pp. 1017-1021
Author(s):  
W. Symader ◽  
R. Bierl ◽  
A. Krein
Keyword(s):  
Water Quality ◽  
Fine Particles ◽  
River Basins ◽  
Small River ◽  
Chemical Data ◽  
Quality Data ◽  
Monitoring Station ◽  
Small Rivers ◽  
Water Quality Data ◽  
Short Pulses

As the transport of many pollutants occurs during high floods monitoring programs must focus on these intermittent events. In small rivers the pollutants start their travel as short pulses often associated with fine particles, but disperse on their way downstreams. Therefore the chemical data of a flood event are only representative of a small part of the basin adjacent to the monitoring station. This is usually not taken into account by evaluating water quality data.

Application of geomorphometric analysis for small river basins in the Selenga middle mountains (on the example of Tarbagatayka river basin)

2019 ◽  
Vol 948 (6) ◽  
pp. 30-38
Author(s):  
M.Y. Opekunova ◽  
A.V. Bardash
Keyword(s):  
River Basin ◽  
Water Flow ◽  
Total Curvature ◽  
River Basins ◽  
Surface Curvature ◽  
Small River ◽  
Basin Analysis ◽  
Coding System ◽  
System Maps ◽  
Middle Mountains

The authors present the data of a geomorphometric Tarbagatayka river basin analysis (Selenga middle mountains) for the purpose of subsequent geomorphological zoning within the framework of allocating the erosion-and-accumulative potential of the basins. The basis for the surface curvature maps were the creation of a DEM basing upon ALOS data, the construction of water flow orders’ scheme in the Straler-Filosofov coding system. Maps of horizontal, vertical and total curvature were obtained, statistical coefficients of these indicators were determined for each of the basins of the 3–4th order and in general for the Tarbagatayka. In the Tarbagatayka basin both in terms of plan and profile convex shapes of the surface pre-dominate, variations in curvature indices correlate well with the morphostructural plan of the territory, which is illustrated by the map of the total curvature. Applying the vector ruggedness measure (VRM) together with surface curvature maps can be used later to determine the erosion-accumulative potential of basins using the methods of structural basins’ coefficients. This approach can be successfully implemented in geomorphological studies and within the framework of the basin concept as well.

De la delimitación de las demarcaciones hidrográficas: errores y contradicciones

2011 ◽  
pp. 271-304
Author(s):  
Isabel GALLEGO CÓRCOLES
Keyword(s):  
Water Management ◽  
Resource Management ◽  
Water Framework Directive ◽  
River Basin ◽  
River Basins ◽  
Water Law ◽  
Sustainable Resource Management ◽  
Distribution Of Power ◽  
Spanish Model ◽  
Model Water

LABURPENA: Espainiako Zuzenbidea Uraren Zuzentarau Markora egokitzeko prozesua asko ari da atzeratzen. Espainiako Zuzenbidean arroen araberako kudeaketa-irizpideak badu tradiziorik; hori horrela izanik, harrigarria dirudi plangintza- eremuak mugatzeak horrelako zailtasun larriak ematea. Zailtasun horien atzean, ordea, Estatuaren eta autonomia erkidegoen arteko botere-banaketaren arteko barne-kontraesanak daude, uraren kudeaketari dagokionez. Uren Legearen Testu Bategina koherentziaz aplikatu ezin denez, zenbait konponbide heterogeneo ari dira sortzen; horietako batzuek, ordea, nekez izango dute tokirik Konstituzioan, uraren kudeaketa jasangarriari traba egiten baitiote, bai ingurumenaren aldetik, bai gizartearen ikuspegia aintzat hartuta. RESUMEN: La transposición de la Directiva Marco de Aguas a Derecho español se está realizando con notable retraso. Y en este punto, resulta sorprendente que siendo el principio de gestión por cuencas tradicional en Derecho español, ya la mera delimitación de los ámbitos de planificación esté suponiendo graves dificultades. En realidad, tras estas dificultades lo que se esconde una acumulación de contradicciones internas en el reparto de poder entre el Estado y Comunidades Autónomas en el ámbito de la gestión hidrológica. Ante la incapacidad de aplicar de forma coherente el Texto Refundido de la Ley de Aguas, están surgiendo una serie de soluciones heterogéneas, algunas de las cuales de difícil encaje constitucional, que entorpecen una gestión sostenible del recurso tanto social como ambientalmente. ABSTRACT: Spain has not complied with the timetable established in the Water Framework Directive. Difficulties have started with the establishment of river basin districts. And this is surprising, because, according to the Spanish model, water management must be done in the natural framework of river basins. Furthermore, in fact, these difficulties what is left is an accumulation of internal contradictions in the distribution of power between the State and Autonomous Regions in the field of water management. Given the inability to consistently apply the Water Law, heterogeneous solutions are emerging, some of which doubtfully constitutional, that hinder the sustainable resource management both socially and environmentally.

Sign in / Sign up

Export Citation Format

Share Document