Sustainable Development of Sweet Sorghum-Based Fuel Ethanol from the Perspective of Water Resources in China

Bioenergy is expected to play a key role in achieving a future sustainable energy system. Sweet sorghum-based fuel ethanol, one of the most promising bioenergy sources in China, has been receiving considerable attention. However, the conflict between sweet sorghum development and traditional water use has not been fully considered. The article presents an integrated method for evaluating water stress from sweet sorghum-based fuel ethanol in China. The region for developing sweet sorghum was identified from the perspective of sustainable development of water resources. First, the spatial distribution of the water demand of sweet sorghum-based fuel ethanol was generated with a Decision Support System for Agrotechnology Transfer (DSSAT) model coupled with Geo-Information System (GIS). Subsequently, the surplus of water resources at the provincial scale and precipitation at the pixel scale were considered during the growth period of sweet sorghum, and the potential conflicts between the supply and demand of water resources were analyzed at regional scale monthly. Finally, the development level of sweet sorghum-based fuel ethanol was determined. The results showed that if the pressure of water consumption of sweet sorghum on regional water resources was taken into account, about 23% of the original marginal land was not suitable for development of sweet sorghum-based fuel ethanol, mainly distributed in Beijing, Hebei, Ningxia, Shandong, Shanxi, Shaanxi, and Tianjin. In future energy planning, the water demand of energy plants must be fully considered to ensure its sustainable development.

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Water-demand management: assessing impacts of climate and other changes on water usage in Central Arizona

Journal of Water and Climate Change ◽

10.2166/wcc.2011.017 ◽

2011 ◽

Vol 2 (4) ◽

pp. 288-312 ◽

Cited By ~ 2

Author(s):

Netra B. Chhetri

Keyword(s):

Water Resources ◽

Water Demand ◽

Supply And Demand ◽

Demand Management ◽

Secondary Data ◽

Active Management ◽

Agricultural System ◽

Extensive Literature ◽

Water Demand Management ◽

Central Arizona

Planning for sustainable water management in the arid region of the southwestern USA is challenging mostly due to only partial understanding of factors converging around water supply and demand. Some of the factors that prompt concern about the adequacy of water resources are: (a) a growing urban population seeking a range of services, including the need to preserve and enhance aquatic ecosystems; (b) dwindling water storage due to multi-year drought conditions; and (c) the prospect of human-induced climate changes and its consequences in the hydrologic system of the region. This study analyzes the potential for water saving in the Phoenix Active Management Area (AMA) of Central Arizona, which includes the city of Phoenix, one of the fastest growing metropolitan areas in the country. Based on an extensive literature review and secondary data analysis, this paper investigates multiple factors that place increasing strain on current water resources, and attempts to extend this analysis to 2025. Outdoor water use within the residential landscape is the most important factor that strains water resources in Phoenix AMA. Any gain in efficiency through agricultural water demand management would not only improve the availability of water for other uses in the AMA, but would facilitate adaptation of the agricultural system to climate and other ongoing changes.

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Inter-region planning and analysis of water resources by using WEAP model Seybouse (Annaba) and Coastal East of Constantine (El-Taref)

Journal of Water and Land Development ◽

10.1515/jwld-2017-0026 ◽

2017 ◽

Vol 33 (1) ◽

pp. 115-122 ◽

Cited By ~ 1

Author(s):

Sarra Mansouri ◽

Lahbassi Ouerdachi ◽

Mohamed Remaoun

Keyword(s):

Water Resources ◽

Water Demand ◽

Supply And Demand ◽

Management Strategies ◽

Ecological Sustainability ◽

Actual System ◽

Weap Model ◽

System Use ◽

Key Factor ◽

Response To Water

Abstract Water is seen as key factor for development. Its scarcity raises concerns at all scales. In regards to water resources, Annaba and El-Taref are intimately connected, the different activities (groundwater and superficial), focused on increasing supply, have been considered as a response to water demand. The actual system use of water resources is not able to sustain water needs that are more and more growing in different expansion sectors. Consequently, a strategy should therefore be sought to integrate the various sectoral needs in available water resources in order to reach the economic and ecological sustainability. We will try to respond to this problem by use of Water Evaluation and Planning (WEAP) model. This study is the first attempt to estimate water demand and analysis of multiple and competing uses of hydro-system in Seybouse’s Wadi basin and to make comparison with proposed water storage estimates. This model was applied according to five different scenarios which reflect the best and worst conditions of the supply and demand, not only to evaluate water demand deficit, but also to help planners to the alternative management. The model stimulation showed that the area study is sensitive to a serious water scarcity by 2030. It is possible to observe an improvement with integration of other management strategies for a best operating system.

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Analysis on Water Resources Supply and Demand Balance of Rural Land Remediation Project in Baishan City, Jilin Province

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.295-298.2132 ◽

2013 ◽

Vol 295-298 ◽

pp. 2132-2137

Author(s):

Xiao Ling Xu ◽

Xu Feng Liang ◽

Xiu Juan Liang ◽

Chang Lai Xiao

Keyword(s):

Water Resources ◽

Water Supply ◽

Water Availability ◽

Water Demand ◽

Influence Factor ◽

Supply And Demand ◽

Rural Land ◽

Project Area ◽

Groundwater Availability ◽

Relevant Calculation

Water resources are an important influence factor of land remediation. As support of food production, analysis of water resources supply and demand balance is an important part and technical support of the construction. According to some relevant calculation formulas on water resources assessment, after forecast of water demand and the calculation of water supply, in the project area of the demonstration construction of whole rural land remediation in Baishan City, the average water availability for many years is 8990.1 thousand m3 each year, in which surface water availability is 7210.6 thousand m3, groundwater availability is 1579.4 thousand m3. Water demand is 5552.4 thousand m3 in 2015, in which water demand for life 4165.2 thousand m3; water demand for agricultural irrigation is 1387.2 thousand m3. Water supply is more than water demand; the results show that there is a slight surplus of water resources in the region. The basic supply-demand balance can be achieved in conditions of the design of water supply project in the project area.

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The optimal allocation of water resources oriented to prioritizing ecological needs using multiple schemes in the Shaying River Basin (Henan Section), China

Water Science & Technology Water Supply ◽

10.2166/ws.2021.331 ◽

2021 ◽

Author(s):

Hang Li ◽

Xiao-Ning Qu ◽

Jie Tao ◽

Chang-Hong Hu ◽

Qi-Ting Zuo

Keyword(s):

Water Resources ◽

Water Supply ◽

River Basin ◽

Water Conservation ◽

Water Demand ◽

Optimal Allocation ◽

Supply And Demand ◽

Allocation Model ◽

Water Supply And Demand ◽

Ecological Objectives

Abstract China is actively exploring water resources management considering ecological priorities. The Shaying River Basin (Henan Section) serves as an important grain production base in China. However, conflicts for water between humans and the environment are becoming increasingly prominent. The present study analyzed the optimal allocation of water while considering ecological priorities in the Shaying River Basin (Henan Section). The ecological water demand was calculated by the Tennant and the representative station methods; then, based on the predicted water supply and demand in 2030, an optimal allocation model was established, giving priority to meeting ecological objectives while including social and comprehensive economic benefit objectives. After solving the model, the optimal results of three established schemes were obtained. This revealed that scheme 1 and scheme 2 failed to satisfy the water demand of the study area in 2030 by only the current conditions and strengthening water conservation, respectively. Scheme 3 was the best scheme, which could balance the water supply and demand by adding new water supply based on strengthening water conservation and maximizing the benefits. Therefore, the actual water allocation in 2030 is forecast to be 7.514 billion (7.514 × 109) m3. This study could help basin water management departments deal with water use and supply.

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A Methodology to Calculate the Supply and Demand Balance by Region for Vietnam's Energy Systems

Energy Systems Research ◽

10.38028/esr.2020.02.0005 ◽

2020 ◽

Author(s):

H.N. Nam ◽

T.Le. Tu ◽

V.D. Binh ◽

H.N. Anh ◽

Q.D. Thanh

Keyword(s):

Energy Supply ◽

System Development ◽

Supply And Demand ◽

Regional Scale ◽

Energy Systems ◽

Energy System ◽

Scientific Basis ◽

Policy Framework ◽

Development Effort ◽

Joint Research

The energy supply and demand balance is one of the important issues to address when proposing options for energy system development. Currently, several tools are utilized for calculating the supply and demand balance for Vietnam's energy systems. These tools are instrumental in developing the national energy system. However, most of them treat the national energy system as a unified whole, with no specific focus on regional energy supply and demand balances. This paper presents a methodology to calculate the supply and demand balance for Vietnam's energy systems by region, with the practical application of Corrective Module1, a piece of software which is a result of the joint research and development effort by the Institute of Energy Science, Vietnam Academy of Science and Technology (VAST) and the Melentiev Energy Systems Institute, Siberian Branch of the Russian Academy of Sciences (RAS). The findings of this study demonstrate that the energy system supply and demand balance calculated by region is the scientific basis for researchers, managers, and policymakers to get a clear vision of possible energy system development at the national and regional scale and to provide directions and policies that are consistent with the conditions of each region and the country. This approach is appropriate for Vietnam's geographical conditions, infrastructure, energy resources, load distribution, and policy framework.

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Analysis of Water Resources Supply and Demand Balance of Rural Land Remediation Project Area in Fuyu County, Jilin Province

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.212-213.609 ◽

2012 ◽

Vol 212-213 ◽

pp. 609-614

Author(s):

Xiao Ling Xu ◽

Xu Feng Liang ◽

Xiu Juan Liang ◽

Chang Lai Xiao

Keyword(s):

Water Resources ◽

Water Supply ◽

Water Availability ◽

Water Demand ◽

Influence Factor ◽

Supply And Demand ◽

Rural Land ◽

Project Area ◽

Groundwater Availability ◽

Relevant Calculation

Water resources are an important influence factor of land remediation. As support of food production, analysis of soil and water resources supply and demand balance is an important part and technical support of the construction. According to some relevant calculation formulas on water resources assessment, after forecast of water demand and the calculation of water supply, in the project area of the demonstration construction of whole rural land remediation in Fuyu County, the average water availability for many years is 70581.6 thousand m3 each year, including surface water availability 57003.3 thousand m3 and groundwater availability 13578.3 thousand m3. Water demand is 58806.2 thousand m3 in 2015; including water demand for life 5150.9 thousand m3 and water demand for agricultural irrigation 53655.3 thousand m3. Water supply is more than water demand; the basic supply-demand balance can be achieved in conditions of the design of water supply project.

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An Information System Platform for Water Resources Operation in Shiyanghe River Basin, China

MATEC Web of Conferences ◽

10.1051/matecconf/201824601060 ◽

2018 ◽

Vol 246 ◽

pp. 01060

Author(s):

Siyu Cai ◽

Xiaohui Lei ◽

Weihong Liao ◽

Yang Yu ◽

Lang Yu

Keyword(s):

Sustainable Development ◽

Information System ◽

Water Resources ◽

River Basin ◽

Computational Models ◽

Supply And Demand ◽

Gansu Province ◽

Ecological Problem ◽

Runoff Forecasting ◽

Model Water

Currently, more and more arid and semi-arid areas in Northwestern China are facing with severe water problems. The Shiyanghe River basin is in the east of Hexi Corridor in Gansu Province with little rainfall and fragile ecological environment. As water pollution and water waste exist with water shortage, a serious conflict of water supply and demand is arising, accompanied with a series of water ecological problem. Thus, we must take measures to ensure the water resources to be used properly for long-term sustainable development. Water resources operation is taken reasonably which can achieve the overall regulation of basin water resources and which is an important method to achieve sustainable development. Taking the Shiyanghe River Basin as the research object, based on the basin data, this paper built the runoff forecasting model, water demand prediction model, water resources operation model and groundwater simulation model. Therefore, an information system platform for water resources operation in Shiyanghe River Basin is built based on GIS with an integrated data and computational models.

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Supply and Demand Analysis of Water Resources. Case Study: Irrigation Water Demand in a Semi-Arid Zone in Mexico

Agriculture ◽

10.3390/agriculture10080333 ◽

2020 ◽

Vol 10 (8) ◽

pp. 333 ◽

Cited By ~ 2

Author(s):

Alvaro Alberto López-Lambraño ◽

Luisa Martínez-Acosta ◽

Ena Gámez-Balmaceda ◽

Juan Pablo Medrano-Barboza ◽

John Freddy Remolina López ◽

...

Keyword(s):

Water Resources ◽

Water Demand ◽

Assessment Tool ◽

Supply And Demand ◽

Swat Model ◽

Measured Data ◽

Demand Analysis ◽

Agricultural Crops ◽

Water Assessment ◽

Semi Arid

To sustainably use water resources, it is important to quantify water availability in a certain region. Due to climate change, population increase, and economic development, water demand increases continuously. Consequently, the difference between supply and demand of water becomes a significant issue, especially in arid and semi-arid regions. In this research, the Soil and Water Assessment Tool (SWAT) model has been applied to the Guadalupe river basin, to assess supply and demand analysis of water resources in this area, specifically for the irrigation of agricultural crops and municipal uses. From the land use, soil type, and terrain slope maps, 763 Hydrostatic Release Units (HRU) were estimated, distributed in the diverse relief types making up the basin, featured by mountains, hills, plateaus, plains, and valleys. For the crop area, 159 HRU were found with the three slope classification types, where 57 HRU represent 91% of the cultivated area on slopes, from 0 to 15%, located in the Ojos Negros and Guadalupe Valleys. The Soil Conservation Service method (SCS) was used to estimate the average monthly runoff and soil moisture content. As a result, water resource parameters related to the supply were determined with this, e.g., runoff, aquifer recharge, flow, infiltration, and others. Crop coefficient values (Kc) were used to determine crop evapotranspiration (ETc), to estimate the water demand of these for each month, using the multi-year monthly average reference evapotranspiration (ETo) calculated with the SWAT model. Overall good performance was obtained considering average monthly discharges data from the Agua Caliente gauging station. The model was calibrated, modifying the parameters chosen according to sensitivity analysis: SCS curve number, base-flow factor, ground-flow delay, and the threshold for return-flow occurrence. The Soil and Water Assessment Tool–Calibration and Uncertainty Programs SWAT-CUP has different goodness-of-fit indicators for the model e.g., determination coefficient (R2), standard deviation of the measured data (RSR), Nash–Sutcliffe coefficient of efficiency (NSE), and others. Multiple iterations were performed, resulting in a ratio between the root mean square error and the standard deviation of the measured data (RSR) of 0.61, a coefficient of determination (R2) of 0.70, and a Nash–Sutcliffe efficiency coefficient (NSE) of 0.63. A supply–demand analysis of the volume generated by the runoff from the basin was performed using the method of estimating useful volume for a reservoir. It is observed in these results that only positive deviations were obtained, implying that runoff in this basin is not enough to meet monthly demand. Finally, the need to establish actions to ensure water management efficiency is highlighted, both for irrigation of agricultural crops and for supply to the region population.

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A Study on the Changes and Development of Water Resources in Urumqi

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.320.748 ◽

2013 ◽

Vol 320 ◽

pp. 748-752

Author(s):

Zhi Jian Wang ◽

Fei Dang

Keyword(s):

Sustainable Development ◽

Water Resources ◽

Supply And Demand ◽

Annual Precipitation ◽

Water Usage ◽

Industrial Distribution ◽

Regional Sustainable Development

Using Excel software, this paper analyzes the changes of water resources in recent 10 years in the area of Urumqi, and it discovers that water resources per capital in Urumqi is declining; the annual precipitation is ascending in its totality though there is fluctuation; the amount of water usage is rising evidently and there is an increase tendency in the apects of lacking water resources and imbalance between supply and demand. The main reasons that cause the above situation are the serious waste and low utilization of water resources; extensive use and over-development of water resources in some parts of Urumqi; unreasonable industrial distribution and lack of the comprehensive and unitied diministration of water resources. Faced with these problems, the paper tries to put some suggestions from the point view of regional sustainable development. Keywords: water resources; changes; development; Urumqi

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Evaluating Vulnerability of Central Asian Water Resources under Uncertain Climate and Development Conditions: The Case of the Ili-Balkhash Basin

Water ◽

10.3390/w13050615 ◽

2021 ◽

Vol 13 (5) ◽

pp. 615

Author(s):

Tesse De Boer ◽

Homero Paltan ◽

Troy Sternberg ◽

Kevin Wheeler

Keyword(s):

Climate Change ◽

Water Resources ◽

Water Demand ◽

Agricultural Development ◽

Environmental Flows ◽

Supply And Demand ◽

Climatic Variability ◽

Central Asian ◽

Set Up ◽

And Shifts

The Ili-Balkhash basin (IBB) is considered a key region for agricultural development and international transport as part of China’s Belt and Road Initiative (BRI). The IBB is exemplary for the combined challenge of climate change and shifts in water supply and demand in transboundary Central Asian closed basins. To quantify future vulnerability of the IBB to these changes, we employ a scenario-neutral bottom-up approach with a coupled hydrological-water resource modelling set-up on the RiverWare modelling platform. This study focuses on reliability of environmental flows under historical hydro-climatic variability, future hydro-climatic change and upstream water demand development. The results suggest that the IBB is historically vulnerable to environmental shortages, and any increase in water consumption will increase frequency and intensity of shortages. Increases in precipitation and temperature improve reliability of flows downstream, along with water demand reductions upstream and downstream. Of the demand scenarios assessed, extensive water saving is most robust to climate change. However, the results emphasize the competition for water resources among up- and downstream users and between sectors in the lower Ili, underlining the importance of transboundary water management to mitigate cross-border impacts. The modelling tool and outcomes may aid decision-making under the uncertain future in the basin.

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