Allocation of Water Resources and Environment Management of the Bachuan River in Chongqing Based on Ecological Water Requirement

2014 ◽  
Vol 641-642 ◽  
pp. 14-18
Author(s):  
Tian Yuan Xiang ◽  
Long Sun
Keyword(s):  
Water Resources ◽  
Water Conservation ◽  
Water Environment ◽  
Water Source ◽  
Water Shortage ◽  
Urban Life ◽  
Production Water ◽  
Water Demand And Supply ◽  
Ecological Water Requirement ◽  
Different Seasons

The Bachuan River is the main water source for urban life and industrial and agricultural production of one county in Chongqing, China, but water shortage is serious due to the water pollution and low development rate at present. In this paper, water resources quantity and quality of the Bachuan River basin were analyzed, and the water demand and supply were calculated. The results indicate that for the polluted river, in addition to the living and production water requirements, the guarantee of ecological water is important for the environment improvement. Reasonable joint regulation of upstream reservoirs is needed to maintain the water supply of living, production and ecological maintenance, and the water resources allocation should be adjusted according to the water inflow in different seasons. At the same time, water environment treatment and water conservation are also necessary to help to improve the water quality, and water transfer projects can be considered if the flow is too small in dry season.

scholarly journals Water quota system in China: problems and countermeasures

2021 ◽  
Author(s):  
Ziyang Zhao ◽  
Hongrui Wang ◽  
Shuxin Gong ◽  
Cheng Wang
Keyword(s):  
Water Resources ◽  
Water Conservation ◽  
Sustainable Use ◽  
Water Shortage ◽  
Social Progress ◽  
Practical Significance ◽  
Quota System ◽  
Water Shortages ◽  
Conservation Policies ◽  
Data Validity

Abstract Water resources are the foundation of economic development, social progress and ecological security, and water shortage is the primary problem facing China. Water quotas have great practical significance for the resolution of water shortages to achieve sustainable use of water resources and sustainable development of the national economy. In this study, to analyse the problems and countermeasures of the water quota system in China, the water quota system progress domestically and abroad, the water quotas problem in China, and the countermeasures for the water quota problem are summarized. The data validity test, spatial correlation test and consistency test are used to test the rationality of water use quota. And the specific countermeasures are presented: improving the water quota system, defining its concept, and revising its scheme, etc. This study provides the support to standardize water quotas and implement the effective water conservation policies of China.

scholarly journals Evaluation of water demand and supply in the south of Iraq

2015 ◽  
Vol 6 (1) ◽  
pp. 214-226 ◽  
Author(s):  
M. H. O. Al-Furaiji ◽  
U. F. A. Karim ◽  
D. C. M. Augustijn ◽  
B. I. H. Waisi ◽  
S. J. M. H. Hulscher
Keyword(s):  
Water Resources ◽  
Water Demand ◽  
Water Shortage ◽  
Water Shortages ◽  
Demand And Supply ◽  
Water Demand And Supply ◽  
Annual Water ◽  
South Of Iraq ◽  
Total Water Demand ◽  
Southern Iraq

This paper presents results from the first study that focuses on water resources availability and demand for different purposes in the four oil-rich provinces of southern Iraq. The region accounts for 23% of the surface area and 18% of the country's population, but holds 88% of its oil. A water shortage of 430 Mm3/year for 2010 is estimated for this region where irrigation accounts for 81% of the total water demand. Dhi Qar is the largest agricultural producer and water consumer while Al Basrah and Al Muthanna have the largest water shortages among the four provinces. The interrelationship of energy–water production and utilization is discussed and the annual water balance for irrigation, industrial, domestic and livestock usage in the different provinces determined. On this basis recommendations are made for treating and utilizing the steadily increasing amounts of water produced from the oilfields to supplement the other sustainable water resources in that region.

scholarly journals Future Domestic Water Demand for Jeddah City

2012 ◽  
Vol 23 (2) ◽  
pp. 137-146
Author(s):  
Ahmed Samy Kamis Ahmed Samy Kamis
Keyword(s):  
Water Resources ◽  
Water Conservation ◽  
Water Demand ◽  
Water Shortage ◽  
Domestic Water ◽  
Domestic Water Demand ◽  
Jeddah City ◽  
Domestic Use

The paper discusses the present and future (1431-1460 A.H.) water de-mand and water resources for the domestic use in Jeddah city. Projection of both water demand driven by population as well as water resources are illustrated. Three scenarios are presented representing high, moderate and low cases for the population. Under each case, the level of water shortage problem is addressed and it is shown that without water conservation Jeddah city will face sig¬nificant water shortage.

scholarly journals The All Towns Reconciliation Strategies a partnership between water resource management and water services

2018 ◽  
Vol 19 (1) ◽  
pp. 79-87
Author(s):  
M. Esterhuizen ◽  
L. de Jager ◽  
W. A. Jezewski
Keyword(s):  
Water Resources ◽  
Water Balance ◽  
Water Resource ◽  
Water Conservation ◽  
Water Resource Management ◽  
Phase 1 ◽  
Water Source ◽  
Planning Horizon ◽  
Water Services ◽  
Water Requirements

Abstract In 2012, the South African Department of Water and Sanitation (DWS) initiated a study: Continuation of the Northern Planning Region's All Towns Reconciliation Strategies: Phase 1. This study reviewed, prioritised and updated the rudimentary All Towns strategies initially developed by DWS in 2011. The purpose of the strategies was to reconcile water requirements with available resources for the 2011–2035 planning horizon by estimating the projected water requirements, determining available water resources (surface and groundwater) and developing a water balance. Recommendations were made to conserve, manage and administer local water sources as well as to augment water supplies from other sources if required. The recommendations provided actions and options for implementation by the relevant Water Services Authorities and the DWS at a local and regional level, providing the opportunity for integrated and coordinated planning. Bulk and reticulation metering, the implementation of water conservation and demand management programmes and recommendations on the updating of water use allocations were prioritised. Detailed studies required to determine the most feasible water resource augmentation options to ensure a positive water balance were identified. The study coordinated efforts by officials and stakeholders representing both the water resources and water services sectors. The prioritised strategies defined the deficit or surplus of the water resources per water source on a technical level, but also highlighted the need for planning and coordination between the water resources and water services sectors. The strategies are not legally mandated documents, but represent some of the best efforts spanning across various sectors to realise coordinated water infrastructure planning in DWS’ Northern Planning Region. The use of the documents in the local, district and national planning environments should be promoted for integrated planning, and it may be fitting to incorporate the All Towns Reconciliation Strategy documents as a valuable resource to inform the water legislation currently being reviewed.

Water Resources and Water Environment Influencing Factors of Biomass Energy Plant (Generating by Straw) in Frigid Zone

2011 ◽  
Vol 179-180 ◽  
pp. 1272-1277
Author(s):  
Chang Lei Dai ◽  
Si Miao Sun ◽  
Hong Jun Han ◽  
Zhi Jun Li
Keyword(s):  
Water Resources ◽  
Influencing Factors ◽  
Feasibility Study ◽  
Construction Projects ◽  
Water Environment ◽  
Water Source ◽  
Biomass Energy ◽  
Cogeneration Plant ◽  
Energy Plant ◽  
The One

Of all the real cases of water resources demonstration for construction projects, research on biomass energy cogeneration plant (generating by straw) which uses reclaimed water as its water source is relatively limited, especially the one locating in frigid zone. Even in water resources demonstration specifications, there are still ambiguities in water resources and water environment influencing factors during the demonstration process. Based on a typical example ---Yi’an biomass energy cogeneration plant, from the perspective of water resources, current situation of water resources and feasibility of water used by the plant have been analyzed; while from the perspective of water environment, water quality and water discharging impacts upon other consumers have also been assessed. Above all, strategy and method of water resources demonstration study is explicitly analyzed and summarized in this article, which provide an entire operational system for water resources feasibility study on biomass energy cogeneration plant (especially in frigid zone) and finally will enrich the practical theory and research for water resources feasibility study of construction projects.

scholarly journals A Simulink Hydrological Estimation of Water Shortage Problem in Al-Najaf Region

2019 ◽  
Author(s):  
Ayad K Hussein ◽  
Hayder H Kareem ◽  
Ali M Hayder
Keyword(s):  
Neural Network ◽  
Surface Water ◽  
Water Resources ◽  
Human Life ◽  
Water Source ◽  
Water Shortage ◽  
Euphrates River ◽  
Simulink Model ◽  
Groundwater Source ◽  
Distribution Type

Recently, the environment is being put under constantly increasing pressure. Globally, water shortage is considered as one of the most serious environmental problems which affect human life and plant wealth. Iraq is highly affected by water deficit in many regions. In particular, Al-Najaf region is selected to be under evaluation for the current and future water resources shortage. This study is based on the collected data for rainfall, evaporation, flow-rate, groundwater, water needed for irrigation, and daily uses for the period between 2000 and 2018. The Artificial Neural Network, normal distribution, and lognormal distribution type III are applied for analyzing the collected data in addition to predict the water shortage for year 2050. Results show a water shortage in years 2002, 2004, 2005, and 2017 only for the selected period. A Simulink model is constructed using Matlab to increase the credibility of the estimated results and gives accurate results for the groundwater and surface water needed. Where in 2050, it is found that it needs to use the groundwater source by 0.024 x 109 m3 to support the surface water source which is represented by the Euphrates River. The study shows the extent of inefficient management of water resources in Al-Najaf region.

Options for the future: balancing urban water supply and demand in Beijing

Water Policy ◽  
2006 ◽  
Vol 8 (2) ◽  
pp. 97-110 ◽  
Author(s):  
Can Wang ◽  
Camilla Dunham Whitehead ◽  
Jining Chen ◽  
Xiaomin Liu ◽  
Junying Chu
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Use ◽  
Water Conservation ◽  
Supply And Demand ◽  
Water Shortage ◽  
Urban Water ◽  
Current Effort ◽  
Current Water ◽  
Water Supply And Demand

Beijing is facing the considerable challenge of water shortage, as it is just able to meet current water demand in a year with average precipitation and a shortfall between water supply and demand is estimated to be around 1.8 billion[109] cubic meters (BCM) by 2010. Aiming to find the solution to such a severe challenge, this paper investigates Beijing's current and future water resources availability and water-use configurations, as well as past and current effort on both areas of water supply and demand. The analysis shows a continuously growing demand for water and an aggravating deficit of traditionally available water resources. The paper concludes that it is necessary to establish well-structured water-use data and employ more advanced forecasting methods if sound future decisions regarding water balance are expected to be made. In order to realize Beijing Municipality's full urban water conservation potential, it is suggested that a comprehensive and integrated long-term conservation program be implemented, which is technically feasible and economically justified, to conserve water consistently for many years.

Analysis of the Environmental Degradation and Ecological Water Requirement Process of the Typical Wetlands in Northeast China

2014 ◽  
Vol 1014 ◽  
pp. 299-302 ◽  
Author(s):  
Pin Lei Xie ◽  
Yu Lin Chen ◽  
Shu Cheng Chang ◽  
Jia Cong Li ◽  
Jia Long Zhou ◽  
...  
Keyword(s):  
Northeast China ◽  
Water Environment ◽  
Water Shortage ◽  
Structure And Function ◽  
Water Requirement ◽  
Environment Protection ◽  
Sharp Decline ◽  
Zhalong Wetland ◽  
Ecological Water Requirement ◽  
And Function

With the aggravation of water resources scarcity in northeast China at present, the area of the wetlands in the watershed has gradually decreased, and the ecotope is getting worse. In this article we take Xianghai wetland and Zhalong wetland as an example to study the process of ecological water requirement, so as to provide the basis for water environment protection. The results show that the suitable ecological water requirement of Xianghai wetland is 191.19 million m3, and the minimum ecological water requirement of Xianghai wetland is 74.32 million m3. While the suitable ecological water requirement of Zhalong wetland is 559.63 million m3, and the minimum is 217.39 million m3. The wetlands in northeast has four ecological water requirement characteristics, which includes that the northeast wetland ecological water requirement process assumes an M type; May is the month having the highest ecological water requirement of the wetland; the wetlands’ ecological water requirement shows a sharp decline in July; and the wetlands ecological water requirement becomes less in winter. The wetlands should choose a right time to make an ecological water supplement for the wetland, in order to alleviate the water shortage condition, and maintain the wetlands’ structure and function to play them normal roles.

Demand Analysis and Technical Framework of Water Ecological Civilization Construction in Shandong Province

2015 ◽  
Vol 737 ◽  
pp. 701-704
Author(s):  
Ming Yuan Fan ◽  
Yu Zhi Shi ◽  
Hai Jiao Liu ◽  
Xiao Feng Yang
Keyword(s):  
Water Resources ◽  
Water Conservation ◽  
Supply And Demand ◽  
Large Population ◽  
Water Environment ◽  
Shandong Province ◽  
Ecological Civilization ◽  
Local Water ◽  
The One ◽  
Technical Framework

Shandong province is famous for large population, agriculture dominated and economy developed region in China, which has a shortage of local water resources caused by uneven rainfall distribution and confronts the contradiction between supply and demand of water resources, ecological fragile and serious water environment deterioration problem, therefore, it has a large challenge for water ecological civilization construction. On the one hand, this article analyzes demand of ecological civilization construction in Shandong province from four aspects of water transferring, water conservation, water supplement and water purification, on the other hand, establishes the corresponding technical system and actual relevant guarantee measures.

Sustainable management of urban water resources in China

2007 ◽  
Vol 7 (2) ◽  
pp. 23-30 ◽  
Author(s):  
Y. Qian
Keyword(s):  
Water Pollution ◽  
Water Resources ◽  
Water Conservation ◽  
Water Resource Management ◽  
Rainwater Harvesting ◽  
Rapid Development ◽  
Water Shortage ◽  
Urban Water ◽  
Wastewater Reclamation ◽  
The Sustainable Development

Due to the rapid development of economy, China has been facing severe water shortage and water pollution problems. This paper discusses three strategies developed for the urban water resource management in China, which is essential for the sustainable development of its economy. These strategies include setting high priority for demand control and water conservation, controlling pollution from the sources and increasing investment for wastewater treatment; and developing untraditional water resources, such as rainwater harvesting, wastewater reclamation, seawater utilization, etc. It is hoped that these strategies may not only solve the water shortage and water pollution problems at low capital and operational costs, but also meet the present and future needs on water resources in China.

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