scholarly journals A Scenario-Based Optimization Model for Planning Sustainable Water-Resources Process Management under Uncertainty

Processes ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 312 ◽  
Author(s):  
Hongchang Miao ◽  
Donglin Li ◽  
Qiting Zuo ◽  
Lei Yu ◽  
Xiaoxia Fei ◽  
...  

Discrepancies between water demand and supply are intensifying and creating a need for sustainable water resource process management associated with rapid economic development, population growth, and urban expansion. In this study, a scenario-based interval fuzzy-credibility constrained programming (SIFCP) method is developed for planning a water resource management system (WRMS) that can handle uncertain information by using interval values, fuzzy sets, and scenario analysis. The SIFCP-WRMS model is then applied to plan the middle route of the South-to-North Water Diversion Project (SNWDP) in Henan Province, China. Solutions of different water distribution proportion scenarios and varied credibility levels are considered. Results reveal that different water-distribution proportion scenarios and uncertainties used in the SIFCP-WRMS model can lead to changed water allocations, sewage discharges, chemical oxygen demand (COD) emissions, and system benefits. Results also indicate that the variation of scenarios (i.e., from S2 to S3) can result in a change of 9% over the planning horizon for water allocation in the industrial sector. Findings can help decision-makers resolve conflicts among economic objective, water resource demand, and sewage discharge, as well as COD emissions.

2019 ◽  
Vol 11 (22) ◽  
pp. 6463 ◽  
Author(s):  
Li ◽  
Yin ◽  
Zhang ◽  
Croke ◽  
Guo ◽  
...  

The Beijing-Tianjin-Hebei (Jingjinji) region is the most densely populated region in China and suffers from severe water resource shortage, with considerable water-related issues emerging under a changing context such as construction of water diversion projects (WDP), regional synergistic development, and climate change. To this end, this paper develops a framework to examine the water resource security for 200 counties in the Jingjinji region under these changes. Thus, county-level water resource security is assessed in terms of the long-term annual mean and selected typical years (i.e., dry, normal, and wet years), with and without the WDP, and under the current and projected future (i.e., regional synergistic development and climate change). The outcomes of such scenarios are assessed based on two water-crowding indicators, two use-to-availability indicators, and one composite indicator. Results indicate first that the water resources are distributed unevenly, relatively more abundant in the northeastern counties and extremely limited in the other counties. The water resources are very limited at the regional level, with the water availability per capita and per unit gross domestic product (GDP) being only 279/290 m3 and 46/18 m3 in the current and projected future scenarios, respectively, even when considering the WDP. Second, the population carrying capacity is currently the dominant influence, while economic development will be the controlling factor in the future for most middle and southern counties. This suggests that significant improvement in water-saving technologies, vigorous replacement of industries from high to low water consumption, as well as water from other supplies for large-scale applications are greatly needed. Third, the research identifies those counties most at risk to water scarcity and shows that most of them can be greatly relieved after supplementation by the planned WDP. Finally, more attention should be paid to the southern counties because their water resources are not only limited but also much more sensitive and vulnerable to climate change. This work should benefit water resource management and allocation decisions in the Jingjinji region, and the proposed assessment framework can be applied to other similar problems.


2020 ◽  
Vol 16 (1) ◽  
pp. 62-80 ◽  
Author(s):  
Sourav Saha ◽  
Nityananda Deka ◽  
Abani Kumar Bhagabati

Participatory water resource management assumes great significance in the changing context of fresh water availability and use. The forces of market economy, in most cases, have transformed the rural social scenario in such a way that community participation in resource management has become almost a far cry. But the Himalayan foothill area in Assam sets a good example of management and sharing of water resources by the communities living in the area in eco-friendly and socially just ways. This study is an attempt to analyse the traditional management practices called dong-bandh system evolved by the local people to harvest and share the stream water for agricultural and domestic purposes. Based on data collected from secondary sources and generated through primary survey, the study focuses on the organizational set-up of the community participation, water distribution policies, conflict resolution and perception of the people on dong–bandh governance. The challenges faced by this traditional system during the recent period have also been discussed.


2019 ◽  
Vol 11 (2) ◽  
pp. 445 ◽  
Author(s):  
Jianfu Liu ◽  
Yujiu Xiong ◽  
Jianlin Tian ◽  
Zhihang Tan

Evapotranspiration (ET), including evaporation from soil and water surfaces and transpiration from vegetation, influences water distribution in the soil-plant-atmosphere continuum, especially in arid areas where water is a key limiting factor. Therefore, understanding the spatiotemporal dynamics of ET, including its two components of soil evaporation (Es) and vegetation transpiration (Ec), can be useful for water resource management and ecological restoration in arid regions. Based on ET data from 2002 to 2012, the spatiotemporal variations in ET were evaluated in the Shiyang River Basin in arid Northwest China. The results showed the following: (1) spatially, ET decreased from upstream of the Qilian Mountains to the middle and downstream, with a mean annual value of 316 mm; (2) temporally, ET showed a single peak curve throughout the year, with the highest value occurring in summer; (3) ET showed a downward trend (from 350 to 265 mm) before 2009 and thereafter increased (from 265 to 345 mm); and (4) water use efficiency, indicated by the ratio of Ec to ET, was low in the cropland, with a mean value of 50.9%. Further analysis indicates that decreases in ET are mainly caused by vegetation decreases; in contrast, ecological restriction measures and strict water resource management policies in the middle reaches of the basin led to ET increases. It is concluded that understanding ET and its two components can elucidate the connections between water and human society.


Author(s):  
M. J. Polo ◽  
C. Aguilar ◽  
A. Millares ◽  
J. Herrero ◽  
R. Gómez-Beas ◽  
...  

Abstract. Risk assessment for water resource planning must deal with the uncertainty associated with excess/scarcity situations and their costs. The projected actions for increasing water security usually involve an indirect "call-effect": the territory occupation/water use is increased following the achieved protection. In this work, flood and water demand in a mountainous semi-arid watershed in southern Spain are assessed by means of the stochastic simulation of extremes, when this human factor is/is not considered. The results show how not including this call-effect induced an underestimation of flood risk after protecting the floodplain of between 35 and 78 % in a 35-year planning horizon. Similarly, the pursued water availability of a new reservoir resulted in a 10-year scarcity risk increase up to 38 % when the trend of expanding the irrigated area was included in the simulations. These results highlight the need for including this interaction in the decision-making assessment.


2018 ◽  
Vol 19 (1) ◽  
pp. 79-87
Author(s):  
M. Esterhuizen ◽  
L. de Jager ◽  
W. A. Jezewski

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 ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 26
Author(s):  
Xinfeng Xiang ◽  
Lingzhong Kong ◽  
Huaiwei Sun ◽  
Xiaohui Lei ◽  
Ji Liang ◽  
...  

This paper addresses recent developments in the application of water Resource dispatching systems (WRDSs) in China. Through a survey of watershed managers and a literature analysis, it was found that water diversion projects should be the top priority of water resource management by considering the recovery construction of water diversion projects. Case studies of WRDSs in the South-to-North Water Diversion (SNWD) and Pearl River Basin are discussed in this article. The results show that total water consumption management (WCM), water quality monitoring and management (WQMM), minimum discharge flow management (MDFM), and water dispatch management (WDM) modules should be considered in WRDSs. Finally, strategies and needs for resolving water resource management problems are discussed, along with other applications of WRDSs in China.


Author(s):  
L. Ma ◽  
S. Gao ◽  
A. Yang

Remote sensing technology has been widely used in many fields. But most of the applications cannot get the information with high reliability and high accuracy in large scale, especially for the applications using automatic interpretation methods. We have designed an application-oriented technology system (PIR) composed of a series of accurate interpretation techniques,which can get over 85 % correctness in Water Resource Management from the view of photogrammetry and expert knowledge. The techniques compose of the spatial positioning techniques from the view of photogrammetry, the feature interpretation techniques from the view of expert knowledge, and the rationality analysis techniques from the view of data mining. Each interpreted polygon is accurate enough to be applied to the accuracy sensitive projects, such as the Three Gorge Project and the South - to - North Water Diversion Project. In this paper, we present several remote sensing applications with high reliability in Changjiang Water Resource Management,including water pollution investigation, illegal construction inspection, and water conservation monitoring, etc.


Waterlines ◽  
1997 ◽  
Vol 16 (1) ◽  
pp. 23-25
Author(s):  
Barry Lloyd ◽  
Teresa Thorpe

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