scholarly journals Downstream State and Water Security in the Mekong Region: A Case of Cambodia between Too Much and Too Little Water

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 802
Author(s):  
Mak Sithirith

Cambodia has too much water during the wet season, and too little water remains in the dry season, which drives a relentless cycle of floods and droughts. These extremes destroy crops, properties, infrastructure, and lives and contribute to poverty. Thus, water management is key to the development of Cambodia. This article seeks to answer the question why Cambodia is vulnerable to floods and drought and how these conditions undermine the country’s development. It also examines what can be done to improve the country’s water resource management and the livelihoods of its population. The article examines water resource availability in Cambodia, its management regimes, and the policy implications in answering these research questions. The article looks at three case studies: first, the Stung Chreybak irrigation scheme in the Tonle Sap region; second, the Lower Sesan 2 Dam (LS2) in the Sesan, Srepok, and Sekong (3S) basin in Cambodia; and third, the transboundary water management in the Mekong Delta. It concludes that water management has been equated to irrigation management. However, the irrigation system in Cambodia has been inadequate to cope with the tremendous volume of water. Furthermore, water management has been complicated by the hydropower dams in the Upper Mekong region and the rubber dams in Vietnam’s Mekong Delta. These contribute to high water insecurity in Cambodia.

Hydrology ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 66
Author(s):  
Daniel P. Loucks

Water resource management policies impact how water supplies are protected, collected, stored, treated, distributed, and allocated among multiple users and purposes. Water resource policies influence the decisions made regarding the siting, design, and operation of infrastructure needed to achieve the underlying goals of these policies. Water management policies vary by region depending on particular hydrologic, economic, environmental, and social conditions, but in all cases they will have multiple impacts affecting these conditions. Science can provide estimates of various economic, ecologic, environmental, and even social impacts of alternative policies, impacts that determine how effective any particular policy may be. These impact estimates can be used to compare and evaluate alternative policies in the search for identifying the best ones to implement. Among all scientists providing inputs to policy making processes are analysts who develop and apply models that provide these estimated impacts and, possibly, their probabilities of occurrence. However, just producing them is not a guarantee that they will be considered by policy makers. This paper reviews various aspects of the science-policy interface and factors that can influence what information policy makers need from scientists. This paper suggests some ways scientists and analysts can contribute to and inform those making water management policy decisions. Brief descriptions of some water management policy making examples illustrate some successes and failures of science informing and influencing policy.


Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1579 ◽  
Author(s):  
Ahmed Elshaikh ◽  
Shi-hong Yang ◽  
Xiyun Jiao ◽  
Mohammed Elbashier

This study aims to offer a comprehensive assessment of the impacts of policies and institutional arrangements on irrigation management performance. The case study, the Gezira Scheme, has witnessed a significant decrease in water management performance during recent decades. This situation led to several institutional changes in order to put the system on the right path. The main organizations involved in water management at the scheme are the Ministry of Irrigation & Water Resources (MOIWR), the Sudan Gezira Board (SGB), and the Water Users Associations (WUAs). Different combinations from these organizations were founded to manage the irrigation system. The evaluation of these organizations is based on the data of water supply and cultivated areas from 1970 to 2015. The measured data were compared with two methods: the empirical water order method (Indent) that considers the design criteria of the scheme, and the Crop Water Requirement (CWR) method. Results show that the MOIWR period was the most efficient era, with an average water surplus of 12% compared with the Indent value, while the most critical period (SGB & WUAs) occurred when the water supply increased by 80%. The other periods of the Irrigation Water Corporation (IWC), (SGB & MOIWR), and (WUAs & MOIWR) had witnessed an increase in water supply by 29%, 63%, and 67% respectively. Through these institutional changes, the percentage of excessive water supply jumped from 12% to 80%. Finally, the study provides general recommendations associated with institutional arrangements and policy adoption to improve irrigation system performance.


2020 ◽  
Vol 200 ◽  
pp. 02019
Author(s):  
Nurul Ihsan Fawzi ◽  
Annisa Noyara Rahmasary ◽  
Ika Zahara Qurani

Sustainable utilization of peatland is required for balancing production and conservation efforts. On peatland, one of the main components to examine sustainability is understanding the carbon balance. This research was conducted in Pulau Burung, Riau, Indonesia, which has a long history of peatland utilization for agriculture. The sets of utilized data included historical data of water management on peatland represented by water table and subsidence rate, next to carbon density of peat soil. The results showed the function of integrated water resource management made the yearly average water table depth is 48 and 49 cm in 2018 and 2019, respectively. The range water table is between 31cm to 72 cm due to season variability and crop requirement. Consequently, the rate of annual subsidence is averaging at 1.7 cm with cumulative subsidence in 32 yr is 54.1 cm. Since the water never drained since the establishment, the subsidence rate of the first five years is averaging only at 3.3 cm yr–1. Low subsidence rates minimize annual carbon loss during the peatland utilization around (30 to 200) Mg CO2 ha–1 yr–1. In 32 yr, the water management in peatland utilization in Pulau Burung has prevented 2 000 Mg CO2 ha–1 to 4 925 Mg CO2 ha–1 loss compared to other cultivated areas in peatland. Further, this paper discusses the practice that resulted in low emission of coconut agriculture in Pulau Burung as one of sustainability dimensions, which support the other sustainability aspects, that is the thriving local livelihood.


2007 ◽  
Vol 7 (5-6) ◽  
pp. 185-192 ◽  
Author(s):  
M.T. Amin ◽  
M. Han

The goal of this paper is to identify the major outlines of innovative, integrated and decentralized water management practices, training, research, and development needs in various aspects of soft path water resource management in developing countries of Asia. The decentralized water strategies including science, regulations, training, government policies, and funding for some of the developing countries in Asian region are reviewed. There are two primary ways or paths of meeting water-related needs; one the “hard” path, and the other “soft” path that complements mainly decentralized and open decision-making, application of efficient technology, and environmental protection. One of the soft path decentralized solution being implemented in many developing countries of Asia is small scale rainwater harvesting and management and both government and non-government sectors are promoting the practice on a regional community and family basis. Overall, the paper aims to contribute to the ongoing development of environmentally sound and economically viable approaches to water management in the developing world.


2013 ◽  
Vol 19 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Nasir Hossain ◽  
Khalid Md. Bahauddin

Abstract Dhaka the capital of Bangladesh is facing a serious water scarcity problem due to the big gap between demand and supply of water system. When accelerating water scarcities and pollution in and around urban centers are superimposed on issues like continuing urbanization, lack of investment funds for constructing and maintaining water infrastructures, high public debts, inefficient resources allocation processes, inadequate management capacities, poor governance, inappropriate institutional frameworks and inadequate legal and regulatory regimes, water management in the megacities poses a daunting task in the future. To overcome these water related problems, water can be a designing element for structuring future development with the combination of sustainable approaches for social and physical transformation, open up opportunities for water management system. Therefore an integrated approach like integrated water resource management (IWRM) system is required that responds to problems that are all interrelated. Alternate supply and demand management tools such as ground water recharge, rainwater harvesting, effective water pricing, reclaimed water use are suggested to meet the deficit of current supply system through the efficient use of the scarce resources available. Institutional reform and improved water planning are required to facilitate economic growth and social development. Finally, human resource development is identified as key factor for the sustainable effective management of this valuable resource.


Water Policy ◽  
2021 ◽  
Vol 23 (1) ◽  
pp. 58-76
Author(s):  
Pedro Bettencourt ◽  
Claudia Fulgêncio ◽  
Maria Grade ◽  
Julio Cesar Wasserman

Abstract Water management is assuming more and more importance as freshwater resources are becoming scarce, both in quality and in quantity, across many developed and developing countries. This trend can be attributed to population growth, industrialization, growing agricultural demand, poor water management practices and climate change. In attempting to deal with the intensification of water quality- and quantity-related problems in recent decades, many countries have revised their water resource management policies and legislation, introducing new institutional frameworks and management instruments. Considering regional geographic and cultural distinctions, the present article aims at comparing the models of water resource management in the European Union (EU) and in Brazil. Institutional and legal arrangements currently in place, water planning and management instruments currently in use, assessments of water body status and watershed diagnoses were analysed. Main strengths and weaknesses of each water management system are pointed out in the conclusion. Main challenges for the water sector, and highlights of the converging and diverging points concerning water resource management systems, in each region, are discussed.


Author(s):  
D. N. Kinyanjui

Aims: This study sought to evaluate the adoption of water resource management strategies in hotels in an attempt to attain water sustainability. Specifically, the research sought to assess the current structural and non-structural water resource management strategies adopted by selected hotels in the environs of Lake Naivasha; establish the perceived effectiveness of both the structural and non-structural water resource management strategies adopted to enhance water sustainability; and compare the structural and non-structural water management strategies in terms of their effectiveness in promoting water sustainability in hotels within environs of Lake Naivasha. Study Design: The study adopted a case study design. Place and Duration of Study: This study was conducted in hotels within the environs of Lake Naivasha between May and December 2010. Methodology: A census of 30 Class (A) registered hotels was conducted, and purposive sampling was used to select 120 respondents from the management staff within the selected hotels. Convenience sampling was used to select 8 managers of water management bodies who acted as key informants during personal interviews. Primary data was collected from the hotel management staff using questionnaires and from managers of water management through personal interviews. Data from questionnaires were analysed using the Statistical Package for Social Science (SPSS) to derive descriptive statistics on the implementation of WRM strategies. Results: Findings revealed that a majority of the sampled hotels had embraced water resource management strategies through the development of alternative water resources, use of water saving technology, treatment of recycled water and use of water saving manuals. Further, the structural water resource management strategies were perceived to be more effective as they impacted more on reducing the operating costs, promoted environmental conservation and were more preferred than the non- structural strategies despite being more expensive to implement.  Conclusion: It is concluded that water sustainability is however achievable through a combination of a variety of WRM strategies.


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