Traditional qanat related jurisprudence in Algeria

2014 ◽  
Vol 14 (6) ◽  
pp. 1142-1149 ◽  
Author(s):  
Nadjat Aroua

The purpose of this paper is to present an investigation on the relevance of the historical water legislation which would adapt to the modern sustainable water management. It is mainly based on the book by Ernest Feline related to the qanat system in the arid M'Zab valley in southern Algeria. It also refers to some related lectures on the traditional water legislation in the Sahara region and more generally on the Islamic water jurisprudence which does reveal a specific culture perpetuated through a relevant adaptation of al-hisba principles. Subsequently the present paper argues that if updated and adapted, the traditional knowledge can serve current water management issues within the framework of the water sensitive urbanism associated with the integrated water resource management. With this respect the spatial concept called ‘harim al-ma’ and the traditional community actions towards the qanat system can contribute to protecting water quality and improving public health.

2018 ◽  
Vol 4 (3) ◽  
pp. 385-393 ◽  
Author(s):  
Mingkai Zhang ◽  
Yanchen Liu ◽  
Qian Dong ◽  
Yi Hong ◽  
Xia Huang ◽  
...  

Rainfall-derived inflow and infiltration (RDII) of urban sanitary sewer systems poses serious challenges for public health and management issues.


Author(s):  
Zhenyu Zhang ◽  
Jinliang Huang ◽  
Min Zhou ◽  
Yaling Huang ◽  
Yimin Lu

A coupled model is an effective tool to understand the nutrient fate associated with hydrodynamic and ecosystem processes and thereby developing a water resource management strategy. This paper presents a coupled modeling approach that consists of a watershed model and a hydrodynamic model to evaluate the nutrient fate in a river–reservoir system. The results obtained from the model showed a good agreement with field observations. The results revealed that the Shuikou reservoir (Fuzhou, China)exhibited complicated hydrodynamic characteristics, which may induce the pattern of nutrient export. Reservoirs can greatly lower water quality as a result of decreasing water movement. Three scenarios were analyzed for water management. The NH3-N (Ammonia Nitrogen) decreased sharply in the outlet of Shuikou reservoir after NH3-N level in its tributary was reduced. After removing the farming cages, the water quality of the outlet of Shuikou reservoir was improved significantly. The DO (Dissolved Oxygen) had increased by 3%–10%, NH3-N had reduced by 5%–17%, and TP (Total Phosphorus) had reduced by 6%–21%. This study demonstrates that the proposed coupled modeling approach can effectively characterize waterway risks for water management in such a river–reservoir system.


2001 ◽  
Vol 43 (4) ◽  
pp. 45-50 ◽  
Author(s):  
K. Biswas

In the current revolution in water management; issues that must be addressed include both urbanisation and ruralisation, water quality, and globalisation and energy policy. Water management must struggle against inappropriate research, myths and inadequate data


Water Policy ◽  
2015 ◽  
Vol 18 (1) ◽  
pp. 111-125 ◽  
Author(s):  
David Sanz ◽  
Alfonso Calera ◽  
Santiago Castaño ◽  
Juan José Gómez-Alday

Water in sufficient amounts and quality is essential for meeting both human and ecological needs. Most water used by mankind is destined for agriculture, and demand is steadily growing. Under this pressure, water management faces significant environmental problems. In the case of groundwater, these difficulties are exacerbated by intensive, unregulated exploitation, and the spatial distribution of wells. Challenges to current water management therefore encompass multiple levels (environmental, technological, social, economic, and political), and their solution requires focus and a range of spatial and temporal scales to ensure integrated water resource management. Knowledge, participation and transparency are all crucial to help in conflict prevention and resolution. New challenges require new technologies that can help to resolve them. This paper analyses how the coordinated use of new technologies provides important results to support decision-making in planning and water management in irrigated agriculture. This case study is especially applicable to groundwater management in large areas where conventional planning, monitoring and control methods are extremely expensive and imprecise. The specific case of the Mancha Oriental Aquifer (SE Spain) is examined as it is an area where such conventional methods have proven to be inadequate.


Author(s):  
Tom Volenzo ◽  
John Odiyo

Water is a key driver for socio-economic development, livelihoods and ecosystem integrity. This is reflected in the emergence of unified paradigms such as Integrated Water Resource Management (IWRM) and the weight accorded to it in the Sustainable Development Goals agenda. This paper interrogated the effectiveness of existing participatory planning and assessment models adapted from IWRM model on water quality and public health at community level. The analysis was built around public health ecology perspective and drew useful lessons from critique of basin wide integrated Modeling approaches and existing community participatory models envisaged under Water Users Associations (WUA) in South Africa. We extended the use of political ecology lenses to ecological public health through use of communication for development approaches, to argue that public health risk reduction and resilience building in community water projects require the use of innovative analytical and conceptual lenses that unbundle cognitive biases and failures, as well as, integrate and transform individual and collective agency. The study concludes that the inherent “passive participation” adapted from IWRM model fail to adequately address water quality and public health dimensions in its pillars. Since water quality has direct bearing on disaster risks in public health, building a coherent mitigatory vision requires the adoption of active participatory assessment and planning models that incorporate livelihoods, agency, social learning dynamics and resilience through recognition of communication for development approaches in community empowerment.


Author(s):  
Hyun No Kim ◽  
SoEun Ahn

Water management can improve the quality of valuable ecosystem services but can be costly to implement and the management costs are covered by national taxes collected by water users. Based on 30 valuation studies of water quality improvement from the Environmental Valuation Information System (EVIS) database provided by Korea Environment Institute (KEI), a meta-regression analysis was employed to measure the benefits that major river basins provided to the society. We compare these benefits to the costs, namely River Management Funds (RMFs) which are financial resources to support a variety of projects for managing and improving upstream water quality. Based on benefit-cost comparison, this study evaluates the efficiency of water resource management in South Korea. This study also provides policy options that are helpful to maintain the sustainability of water resource by improving the planning and performance of water management in the long run.


Author(s):  
Žarko Vranjanac ◽  
Dejan Vasović

From a global perspective, there is currently an ever-increasing problem of natural water resource pollution and daily decrease of available amounts of potable water. In addition to the definition of their ecological status, the existing problems of polluted water systems also require that parameters of the oxygen regime should be determined. The importance of monitoring the indicators of oxygen regime in rivers is aimed at achieving sustainable water management and preserving environmental quality. Oxygen regime in the Nišava river ecosystem is monitored based on specific physico-chemical indicators: biological oxygen demand (BOD), chemical oxygen demand (COD), total organic carbon (TOC), dissolved oxygen and oxygen saturation. The aim of this paper is to demonstrate the significance of oxygen regime indicators by monitoring their concentrations at measuring stations along the Nišava, which can help assess the quality of the given aquatic ecosystem. The paper relies on the Results of Surface and Ground Water Quality Testing by the Environmental Protection Agency, Ministry of Agriculture and Environmental Protection of the Republic of Serbia for two measuring stations along the Nišava in 2013. Mean annual concentrations of oxygen regime indicators for 2013 are BOD = 2.6 mg/L and COD = 4.3 mg/L, which indicates that the value of their respective ratio is 0.6, which is important for oxygen regime. A comparative analysis performed by the water supply PUC “Naissus”, based on the values of these environmental indicators, also confirmed that water quality in the Nišava corresponds to Class II surface water. Therefore, this paper highlights the importance of monitoring oxygen regime indicators of the Nišava River for the purpose of sustainable water management and environmental quality preservation.


2003 ◽  
Vol 48 (10) ◽  
pp. 55-62 ◽  
Author(s):  
J.L. Eastcott ◽  
T. Aramaki ◽  
K. Hanaki ◽  
Z. Li ◽  
J. You

The Shawan River will be the focal point in the development of the Panyu District, the southern-most district of Guangzhou City in the Guangdong Province of South China. In this research, through the use of two scenarios, the future water quality of the Shawan River was predicted with relation to changes in the water quantity utilized to fuel industrial and domestic development. The worst-case scenario used, simulated the situation if no wastewater treatment was employed, and the best-case scenario simulated the situation if 90% of the pollution load was removed. The period of simulation was for the years 2020 and 2050. Three flowrates were used in the evaluation, those of: the 90% probability of the month of lowest flow (37.2 m3/s); and the range of flowrates within the low flow period, that is, the dry season from November to February (307 and 432 m3/s). Subsequently, two countermeasures (industrial and domestic water savings) - sustainable initiatives - were nested within the two scenarios to ascertain improvements in water quality as a direct result of reduction in water quantity used. The industrial water saving countermeasure showed the greatest improvement in water quality. For the 90% probability of lowest flow for the worst-case scenario, this countermeasure equated to a 63% decrease in BOD. For the low flow period flowrates the background concentration of pollutants was more influential than improvements imparted by the countermeasures to the future predicted water quality. It was recommended that industrial countermeasures be used that take into account water saving, water recycling, the use of brackish water for cooling, and the implementation of economic pricing initiatives. Also that inter-district governmental policy initiatives be introduced to prevent upstream pollution from influencing downstream proposals, further enhancing sustainable water management of the Shawan River.


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