scholarly journals Impact assessment on water resources management under extreme climate change

2018 ◽  
Vol 246 ◽  
pp. 01018
Author(s):  
Zhiming Liu ◽  
Yongqiang Wang ◽  
Jin Chen ◽  
Jijun Xu ◽  
Shaokun He
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Water Supply ◽  
River Basin ◽  
Water Resources Management ◽  
Flood Control ◽  
Extreme Condition ◽  
Resources Management ◽  
Hanjiang River ◽  
Precipitation And Temperature

River flows would be influenced greatly by climate change, which may cause further stress on water resources management by altering the quantity and distribution of runoff. In this paper, taking the Hanjiang River basin for instance, projections of precipitation and temperature are generated from two GCMs under RCP8.5 scenario, an extreme condition. Then the outputs are statistically downscaled and corrected by the daily bias correction method, a hybrid method of combining the daily translation and the local intensity scaling method. The VIC distributed hydrological model is used for the runoff simulation. Results show that the projections of two GCMs consistent with each other. There is a general increase in the annual mean precipitation and temperature in the Hanjiang River Basin in the future period (2021-2099), and the annual mean runoff of the Danjiangkou reservoir increases significantly compared with historical period (1980-2010). However, the annual runoff variability would increase the flood control pressure in wet season, aggravate the conflict between power generation and water supply in dry season despite increasing the water supply capacity in storage season.

scholarly journals Impacts of Inter-Basin Water Transfer Projects on Optimal Water Resources Allocation in the Hanjiang River Basin, China

2019 ◽  
Vol 11 (7) ◽  
pp. 2044 ◽  
Author(s):  
Jing Tian ◽  
Dedi Liu ◽  
Shenglian Guo ◽  
Zhengke Pan ◽  
Xingjun Hong
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
River Basin ◽  
Water Resources Management ◽  
Water Transfer ◽  
Resources Allocation ◽  
Water Resources Allocation ◽  
Resources Management ◽  
Basin Water ◽  
Hanjiang River

Inter-basin water transfer project is an effective engineering countermeasure to alleviate the pressure of water supply in water-deficient areas and balance the uneven distribution of water resources. To assess the impacts of inter-basin water transfer projects on optimal water resources allocation, an integrated water resources management framework is proposed, and is applied to the middle and lower reaches of the Hanjiang River Basin in China. Firstly, future water demands are analyzed as inputs. Then, a multi-objective water resources allocation model is formulated mitigating the negative impacts of water transfer projects on downstream water quantity and quality by using the non-dominated sorting genetic algorithm-II (NSGA-II). Finally, the indicators of water supply reliability, vulnerability and resilience are evaluated under different scenarios of inter-basin water transfer projects. The results indicate that: (1) the reliability and resilience of the water donor system will be gradually reduced while the vulnerability will be increased with the expansion of water transfer projects and the increase of water demand, (2) water supply risk is likely to increase in all zones (because zones at the boundary cannot obtain sufficient water due to limitations of local inflow and reservoir operation, while the amount of water available in the zones along the mainstream river is directly decreased by the water transfer projects), (3) more water supply measures and compensation measures will need to be implemented in the water donor areas. The framework proposed in this study to evaluate the comprehensive impact of inter-basin water transfer projects is conducive to water resources management.

Integrated water resources management in the Ruhr River Basin, Germany

2003 ◽  
Vol 47 (7-8) ◽  
pp. 81-86 ◽  
Author(s):  
H. Bode ◽  
P. Evers ◽  
D.R. Albrecht
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
River Basin ◽  
Water Resources Management ◽  
Ecological Status ◽  
Integrated Water Resources Management ◽  
Rhine River ◽  
Wastewater Disposal ◽  
Resources Management ◽  
The People

The Ruhr, with an average flow of 80.5 m3/s at its mouth, is a comparatively small tributary to the Rhine River that has to perform an important task: to secure the water supply of more than 5 million people and of the industry in the densely populated region north of the river. The complex water management system and network applied by the Ruhrverband in the natural Ruhr River Basin has been developed step by step, over decades since 1913. And from the beginning, its major goal has been to achieve optimal conditions for the people living in the region. For this purpose, a functional water supply and wastewater disposal infrastructure has been built up. The development of these structures required and still requires multi-dimensional planning and performance. Since the river serves as receiving water and at the same time as a source of drinking water, the above-standard efforts of Ruhrverband for cleaner water also help to conserve nature and wildlife. Ruhrverband has summed up its environmental awareness in the slogan: “For the people and for the environment”. This basic water philosophy, successfully applied to the Ruhr for more than 80 years, will be continued in accordance with the new European Water Framework Directive, enacted in 2000, which demands integrated water resources management in natural river basins, by including the good ecological status of surface waterbodies as an additional goal.

scholarly journals Investigating Hydrological Variability in the Wuding River Basin: Implications for Water Resources Management under the Water–Human-Coupled Environment

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 184
Author(s):  
Chiheng Dang ◽  
Hongbo Zhang ◽  
Vijay P. Singh ◽  
Yinghao Yu ◽  
Shuting Shao
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Water Resources Management ◽  
Actual Evapotranspiration ◽  
Groundwater Exploitation ◽  
Resources Management ◽  
Hydrological Variability ◽  
Runoff Reduction ◽  
The Wuding River

Understanding and quantifying changes in hydrological systems due to human interference are critical for the implementation of adaptive management of global water resources in the changing environment. To explore the implications of hydrological variations for water resources management, the Wuding River Basin (WRB) in the Loess Plateau, China, was selected as a case study. Based on the Budyko-type equation with a time-varying parameter n, a human-induced water–energy balance (HWEB) model was proposed to investigate the hydrological variability in the WRB. The investigation showed that runoff continuously reduced by 0.424 mm/a during 1975–2010, with weakly reducing precipitation and increasing groundwater exploitation causing a decrease in groundwater storage at a rate of 1.07 mm/a, and actual evapotranspiration accounting for more than 90% of precipitation having an insignificantly decreasing trend with a rate of 0.53 mm/a under climate change (decrease) and human impact (increase). Attribution analysis indicated that human-induced underlying surface condition change played a dominant role in runoff reduction by driving an increase in actual evapotranspiration, and that mainly impacted the overall decrease in runoff compounded by climate change during the entire period. It is suggested that reducing the watershed evapotranspiration and controlling groundwater exploitation should receive greater attention in future basin management.

Climate change and water resources management in Tuwei river basin of Northwest China

2012 ◽  
Vol 19 (1) ◽  
pp. 107-120 ◽  
Author(s):  
Wang Xiao-jun ◽  
Zhang Jian-yun ◽  
Wang Jian-hua ◽  
He Rui-min ◽  
Amgad ElMahdi ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Water Resources Management ◽  
Northwest China ◽  
Resources Management

scholarly journals Assessment and Method of Water Resources Management in the Asa River Basin

2021 ◽  
pp. 49-55
Author(s):  
Balzhan Amanbaeva ◽  
Ermekkul Zhaparkulova ◽  
Mustafa Mustafayev ◽  
Josef Mosiej
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
River Basin ◽  
Water Resources Management ◽  
Water Intake ◽  
Irrigation Water ◽  
Irrigated Agriculture ◽  
Land Resources ◽  
Resources Management ◽  
The Republic

The article presents the method of water resources management in the Asa river basin and indicators of water intake, water supply and assessment of water quality. Water is an economically important resource that determines the sustainability of a country’s development. New trends show that water issues are becoming more complex with other sectors, including agriculture, energy, industry, transport, and communications, as well as with social sectors: education, environment, and healthcare, rural or regional development. The rational use of water resources, as well as the protection of water resources and access to drinking water are an important priority for the world community. The Republic of Kazakhstan is no exception, since the deficit of water resources is growing every year. Today’s global challenges, especially climate change and population growth, are making the situation even more worrisome. Climate change is caused by dynamic processes on Earth, external influences such as fluctuations in the intensity of sunlight, and recent human activities. Consequently, in the conditions of Kazakhstan, where water resources are limited, and irrigation develops in various natural and climatic zones, further intensification of irrigated agriculture can be carried out through the development of environmentally friendly integrated technologies, ecological and reclamation management of water and land resources, ensuring a decrease in the amount of unproductive losses of irrigation water, as well as protection of water and land resources from pollution by collector-waste waters, leaching of organic substances and nutrients, the rate of salt accumulation in the root layer and the rate of alkalization and alkalinization processes. This approach is predetermined by the fact that the existing methods of water resources management inevitably lead to large losses of irrigation water for infiltration, discharge and evaporation, the value of which reaches 60–70% of the water intake.

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