Current water resources activities in Arkansas, 1986-87

1988 ◽  
Author(s):  
B.L. Louthian ◽  
E.E. Gann
Keyword(s):  
Water Resources ◽  
Current Water

Current water recycling initiatives in Australia: scenarios for the 21st century

1996 ◽  
Vol 33 (10-11) ◽  
pp. 37-43 ◽  
Author(s):  
John M. Anderson
Keyword(s):  
Water Resources ◽  
Urban Design ◽  
21St Century ◽  
Reclaimed Water ◽  
River Basins ◽  
Advanced Treatment ◽  
Water Recycling ◽  
Water Diversions ◽  
Beneficial Reuse ◽  
Current Water

Australia is a relatively dry continent with an average runoff of 50 mm per year. The use of water resources in some river basins is approaching the limits of sustainability. Some adverse environmental impacts have been observed resulting from water diversions and from both reclaimed water and stormwater discharges. The paper describes current water recycling initiatives in Australia. These include: beneficial reuse of reclaimed water for urban, residential, industrial and agricultural purposes; recycling of greywater and stormwater; advanced treatment using membrane technology; and water efficient urban design. Some possible water recycling scenarios for Australia in the 21st century are examined. The implications of these scenarios are discussed.

scholarly journals DEVELOPING TOOLS FOR COMPUTATION OF BASIN TOPOGRAPHIC PARAMETERS IN GIS

2016 ◽  
Vol XLII-2/W1 ◽  
pp. 165-168 ◽  
Author(s):  
T. Gökgöz ◽  
Y. Yayla ◽  
M. B. Yaman ◽  
H. Güvenç ◽  
S. Kaya
Keyword(s):  
Information System ◽  
Water Resources ◽  
Geographical Information System ◽  
Geographical Information ◽  
Population Increase ◽  
Basin Management ◽  
The World ◽  
Current Water ◽  
Basin Boundaries ◽  
Topographic Parameters

Although water use has been increasing day by day depending on fast population increase, urbanization and industrialization in the world, potential of usable water resources remains stable. On the other side, expansion of agricultural activities, industrialization, urbanization, global warming and climate change create a big pressure on current water resources. Therefore, management of water resources is one of the most significant problems of today that is required to be solved and ‘’Integrated Basin Management’’ has gained importance in the world in terms of decreasing environmental problems by more efficiently using current water resources. In order to achieve integrated basin management, it is needed to determine basin boundaries with sufficient accuracy and precision and encode them systematically. In various analyses to be done on the basis of basin, topographic parameters are also needed such as shape factor, bifurcation ratio, drainage frequency, drainage density, length of the main flow path, harmonic slope, average slope, time of concentration, hypsometric curve and maximum elevation difference. Nowadays, basin boundaries are obtained with digital elevation models in geographical information systems. However, tools developed for topographic parameters are not available. In this study, programs were written in Python programming language for afore-mentioned topographic parameters and each turned into a geographical information system tool. Therefore, a significant contribution has been made to the subject by completing the deficiency in the geographical information system devoted to the topographic parameters that are needed in almost every analyses concerning to the hydrology.

scholarly journals Study on Production, Domestic and Ecological Benefits of Reservoir Water Supply Based on Emergy Analysis

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1435
Author(s):  
Xinjian Guan ◽  
Pengkun Jiang ◽  
Yu Meng ◽  
Haidong Qin ◽  
Hong Lv
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Evaluation Model ◽  
Emergy Analysis ◽  
Reservoir Water ◽  
Water Users ◽  
Ecological Benefit ◽  
Analysis Theory ◽  
Regulation Function ◽  
Current Water

As an important water conservancy project, it is necessary to evaluate its water supply benefit. Based on the emergy analysis theory, a reservoir water supply benefits evaluation model (RWSBEM) was established. Firstly, the emergy transformity of natural and engineering water body was calculated. Secondly, the water resource values (WRV) of different water users (industrial, agricultural, domestic, ecological) were calculated. Finally, combined with the water supply situation of the reservoir, the various water supply benefits of the reservoir were calculated. Taking Hekoucun reservoir as an example, its ecological water supply benefit is the largest and agriculture is the smallest, followed by industry and life. The results showed that the trend of WRV was domestic > industry > ecology > agriculture, which reflected the contribution and utility of water resources in different industries. Under the condition of current water resources, the planned water supply benefits of the reservoir can be guaranteed in the wet and normal years, but in the dry years, the ecological benefit will be reduced. Therefore, the industry water-saving needs to be further strengthened, and the interannual regulation function of the reservoir should be applied more effectively to maximize the comprehensive benefits of reservoir water supply.

scholarly journals Vulnerabilities of the European Union’s Economy to Hydrological Extremes Outside its Borders

Atmosphere ◽  
2019 ◽  
Vol 10 (10) ◽  
pp. 593 ◽  
Author(s):  
Ertug Ercin ◽  
Daniel Chico ◽  
Ashok K. Chapagain
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Water Scarcity ◽  
Virtual Water ◽  
Green Water ◽  
The European Union ◽  
The World ◽  
Current Water ◽  
External Water ◽  
The Eu

Climate change is leading to increased water scarcity and drought in many parts of the world. This has implications for the European Union (EU) because a lot of the water intensive goods consumed or used there are produced abroad. This makes the EU’s economy dependent on water resources well beyond its borders since when a country imports water intensive goods, indirectly it also imports virtual water (water needed to produce the imported goods). This study maps the EU’s global dependency on water resources outside its borders in terms of virtual water imports and assesses how water scarcity and drought may disrupt supplies of key food crops that it imports. The EU uses approximately 668 km3 of water for all of the goods it produces, consumes and exports, annually. Around 38% of that water comes from outside its borders, which means that the EU’s economy is highly dependent on the availability of water in other parts of the world. In the near future, supplies of certain crops to the EU could be disrupted due to water scarcity in other parts of the world; a large portion of the water used in producing soybeans, rice, sugarcane, cotton, almonds, pistachios and grapes for import to the EU comes from areas with significant or severe levels of water scarcity. Although the immediate risks to the EU’s economy are due to current water scarcity levels, any disruption to rainfall patterns that occur in the future, due to the effects of climate change in the countries of origin of key crops, could have a far greater impact. This is because as much as 92% of the EU’s total external water demand from agriculture is attributed to green water use, availability of which has relatively higher vulnerability to drought.

scholarly journals The construction of a water rights system in China that is suited to the strictest water resources management system

2016 ◽  
Vol 17 (1) ◽  
pp. 238-245 ◽  
Author(s):  
Ming Dou ◽  
Yanyan Wang
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Management System ◽  
Water Resource Management ◽  
Water Rights ◽  
Resources Management ◽  
Core Components ◽  
Current Water ◽  
Definition Of ◽  
Water Issues

Establishing a modern water rights system (WRS) that is suited to the Strictest Water Resources Management System (SWRM) is an important reform in China's water resources management in terms of addressing current water issues. However, there are still several problems in the construction of a WRS, such as ambiguity in the definition of water rights, weakness in the infrastructure of water rights and imperfect WRS legislation. Moreover, water rights allocation (WRA) and water rights trading (WRT), which are two core components of water rights, still have some problems that remain to be solved. The ‘Three Red Lines’, which make up the core of the SWRM, are expounded upon, and the relationship between the WRS and the SWRM is analyzed. Finally, some appropriate recommendations based on the ‘Three Red Lines’ are provided to perfect the WRS so that it is suitable for the SWRM. In this paper, we conclude that the WRS is a type of water resource management that can effectively solve the current water issues in China. Significant efforts have been made in the construction of the WRS, which has achieved remarkable success in a period of exploration and practice in China. The construction of the WRS supports sustainable social and economic development and results in harmonious relationships between humans and nature.

scholarly journals Adaptando la agricultura al cambio climático

2012 ◽  
Vol 11 (2) ◽  
pp. 109 ◽  
Author(s):  
Ana Iglesias ◽  
Sonia Quiroga ◽  
Agustín Diz ◽  
Luis Garrote
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
East Asia ◽  
Water Scarcity ◽  
Northern Europe ◽  
South East Asia ◽  
Costs And Benefits ◽  
Low Latitude ◽  
Current Water ◽  
Northern Russia

<div data-canvas-width="503.8516666666665">We evaluate the potential impacts and measure the potential limits of adaptation of agri culture to climate change. Pressures on land and water resources are expected to intensify existing risks in low latitude areas – e.g., South-East Asia deltas – and in regions with current water scarcity – e.g. Mediterranean, and create new opportunities in some northern temperate areas – e.g., Northern Russia, Northern Europe. The need to respond to these risks and opportunities is addressed by evaluating the costs and benefits of a number of technical and policy actions. The discussion aims to assist stakeholders facing the adaptation challenge and develop measures to reduce the vulnerability of the sector to climate change.</div>

scholarly journals Assessment of water quality in the downstream of the Amu Darya basin

2021 ◽  
Vol 264 ◽  
pp. 03049
Author(s):  
Feruzbek Karimboev ◽  
Daulet Gulomov ◽  
Zarina Tillayeva
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Socioeconomic Development ◽  
Water Shortage ◽  
Anthropogenic Factors ◽  
Amu Darya ◽  
Quality Of Water ◽  
Current Water ◽  
Annual Water ◽  
Projected Changes

Ecosystem vulnerability increases significantly when anthropogenic factors overlap with the effects of adverse climate change, which together negatively affect biodiversity and ecosystem functioning. According to ADB forecasts, the inflow to the lower reaches of the Amu Darya will decrease by 26-35% by 2050. The combined effect of higher water demand and lower inflow will increase the current water shortage - the annual water shortage will increase to 50% of the total demand. In connection with the projected changes, the current state of water resources of the Amu Darya river, as well as the need for the socioeconomic development of the region, the task of assessing the projected impact of climate change on the availability and quality of water resources becomes urgent.

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