TEMPORAL VARIATION OF GROUNDWATER QUALITY IN SLEMAN, YOGYAKARTA, INDONESIA

Groundwater quality evaluation is important to gain an insight of contamination source. It can later be utilized to review the implementation of a water resource management policy in a specific region. Aim: This study evaluate the short-term temporal variation of groundwater quality and its possible contamination source in Sleman, Yogyakarta. Methodology and Results: the statistical approach was utilized using boxplot, principle component analysis (PCA) and correlation matrices, to the data for 50 sampling sites. The data of groundwater quality are available from the local environmental authority of Environmental Agency Sleman.The box plots revealed that groundwater quality might largely influenced by rainfall in the area. The factor loading of PCA presented that the ratio of concentration of both chloride and TDS are the most varied of all samples, and the less variable parameter is fluoride. The pair of groundwater quality parameter which had strong correlation were varied in each year, except for TDS and chloride that showed strong correlation in all three years. Nitrite had strong correlation with iron in 2017 and, nitrite also had strong correlation with both manganese and fluoride in 2019. The existence of fluoride in correlation with other parameter might give an insight of contamination from livestock wastes, where in the study area there are many poultry and cow farms, and small scale chicken slaughter industries. Conclusion, significant and impact study: This study gives preliminary understanding on temporal variation of groundwater quality, for further research on groundwater quality in Sleman, Yogyakarta.

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Science Informed Policies for Managing Water

Hydrology ◽

10.3390/hydrology8020066 ◽

2021 ◽

Vol 8 (2) ◽

pp. 66

Author(s):

Daniel P. Loucks

Keyword(s):

Water Management ◽

Water Resource ◽

Policy Making ◽

Water Resource Management ◽

Information Policy ◽

Management Policy ◽

Multiple Impacts ◽

Policy Makers ◽

Science Policy Interface ◽

Management Policies

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.

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Uncertainty in water resources availability in the Okavango River Basin as a result of climate change

Hydrology and Earth System Sciences Discussions ◽

10.5194/hessd-7-5737-2010 ◽

2010 ◽

Vol 7 (4) ◽

pp. 5737-5768 ◽

Cited By ~ 13

Author(s):

D. A. Hughes ◽

D. G. Kingston ◽

M. C. Todd

Keyword(s):

Climate Change ◽

Water Resource Management ◽

Climate Models ◽

Climate Model ◽

Management Policy ◽

Mean Flow ◽

Considerable Uncertainty ◽

Okavango River ◽

Projected Changes ◽

Change In Mean

Abstract. This paper assesses the hydrological response to scenarios of climate change in the Okavango River catchment in Southern Africa. Climate scenarios are constructed representing different changes in global mean temperature from an ensemble of 7 climate models assessed in the IPCC AR4. The results show a substantial change in mean flow associated with a global warming of 2 °C. However, there is considerable uncertainty in the sign and magnitude of the projected changes between different climate models, implying that the ensemble mean is not an appropriate generalised indicator of impact. The uncertainty in response between different climate model patterns is considerably greater than the range due to uncertainty in hydrological model parameterisation. There is also a clear need to evaluate the physical mechanisms associated with the model projected changes in this region. The implications for water resource management policy are considered.

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Analysis of drought characteristics for improved understanding of a water resource system

Proceedings of the International Association of Hydrological Sciences ◽

10.5194/piahs-364-404-2014 ◽

2014 ◽

Vol 364 ◽

pp. 404-409 ◽

Cited By ~ 3

Author(s):

A. T. Lennard ◽

N. Macdonald ◽

J. Hooke

Keyword(s):

Resource Management ◽

Water Supply ◽

Water Resource ◽

Water Resource Management ◽

Drought Indices ◽

Drought Severity ◽

Small Scale ◽

Water Resource System ◽

Drought Characteristics ◽

Standardised Precipitation Index

Abstract. Droughts are a reoccurring feature of the UK climate; recent drought events (2004–2006 and 2010–2012) have highlighted the UK’s continued vulnerability to this hazard. There is a need for further understanding of extreme events, particularly from a water resource perspective. A number of drought indices are available, which can help to improve our understanding of drought characteristics such as frequency, severity and duration. However, at present little of this is applied to water resource management in the water supply sector. Improved understanding of drought characteristics using indices can inform water resource management plans and enhance future drought resilience. This study applies the standardised precipitation index (SPI) to a series of rainfall records (1962–2012) across the water supply region of a single utility provider. Key droughts within this period are analysed to develop an understanding of the meteorological characteristics that lead to, exist during and terminate drought events. The results of this analysis highlight how drought severity and duration can vary across a small-scale water supply region, indicating that the spatial coherence of drought events cannot be assumed.

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Scope/need of soft path water resource management in developing countries

Water Science & Technology Water Supply ◽

10.2166/ws.2007.109 ◽

2007 ◽

Vol 7 (5-6) ◽

pp. 185-192 ◽

Cited By ~ 3

Author(s):

M.T. Amin ◽

M. Han

Keyword(s):

Water Management ◽

Developing Countries ◽

Resource Management ◽

Water Resource ◽

Water Resource Management ◽

Management Practices ◽

Rainwater Harvesting ◽

Small Scale ◽

Efficient Technology ◽

Environmentally Sound

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.

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Multiscale Spatial and Small-Scale Temporal Variation in the Composition of Riverine Fish Communities

Environmental Monitoring and Assessment ◽

10.1007/s10661-006-4938-0 ◽

2006 ◽

Vol 114 (1-3) ◽

pp. 553-571 ◽

Cited By ~ 3

Author(s):

Ivor Growns ◽

Karen Astles ◽

Peter Gehrke

Keyword(s):

Temporal Variation ◽

Fish Communities ◽

Small Scale ◽

Riverine Fish

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Hope as a Critical Resource for Small Scale Farmers in Mpumalanga

Human Geography ◽

10.1177/194277861500800302 ◽

2015 ◽

Vol 8 (3) ◽

pp. 24-36 ◽

Cited By ~ 3

Author(s):

Jacqueline Goldin

Keyword(s):

Social Action ◽

Rural Women ◽

Capability Approach ◽

Well Being ◽

Mental States ◽

Management Policy ◽

Small Scale ◽

Subjective Well Being ◽

Emotional Life ◽

The Capability Approach

I contrast formal institutional structures that are part of water resources management policy and practice with more fluid ‘outside’ spaces that I claim are more apt for participatory engagement around food production. I link these ideas to a discussion on hope. I make three distinct contributions. First the paper expands on the theoretical concerns of the Capability Approach by bringing to the fore the linkages between subjective well-being and emotions. The paper thus connects the Capability Approach and discourses of affect and emotions explicit. The Capability Approach (CA) is a helpful entry point into the idea of hope in particular and emotions in general. Second, I claim that emotions are of public concern and that they are embedded structurally. In these spaces the dimension of power is crucial in determining the nature of the emotions that are experienced, and there is a connection between hope and power. I argue that emotions mediate and inform social action and are a function of social processes. Third, I affirm that in the essentially technical and masculinised world of water, rural women farmers are more likely to experience positive feelings, such as self-esteem, hope, pride and dignity, in informal ‘outside’ spaces. Within the context of an ethics of care, the idea of ‘particularism’ places value on concrete circumstances and individual experience and the incorporation of emotions and compassion into a social justice discourse. I propose that hope be considered amongst a range of mental states contributing to valuable and complex social functionings that are relevant for assessing poverty and human development. Looking at emotional life might help answer the question: what makes people do what they do – and whether and in what ways they take on (or do not take on) board opportunities that present themselves? The article concludes that hope is a mental state that helps command commodities and helps achieve functionings. As such hope is an input as important as seeds and fertilizer for small-scale farming.

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Effluent Water Reuse Possibilities in Northern Cyprus

Water ◽

10.3390/w11020191 ◽

2019 ◽

Vol 11 (2) ◽

pp. 191

Author(s):

Gozen Elkiran ◽

Fidan Aslanova ◽

Salim Hiziroglu

Keyword(s):

Water Reuse ◽

Water Resource Management ◽

Treatment Plant ◽

Management Policy ◽

Treated Wastewater ◽

Treatment Level ◽

Effluent Water ◽

Tertiary Treatment ◽

Recycled Water ◽

Northern Cyprus

Northern Cyprus (NC) is suffering from limited water resources and reiterated drought condition experiences due to global warming effects. Previous studies revealed that the water management policy in the country is not sustainable from the perspective of demand and balance. Apparently, the reuse of recycled water will be an alternative resource and can be utilized for some specific purposes to reduce water extraction from the ground. It is expected that treated wastewater will reach 20 million cubic meters (MCM) per year after the completion of the new sewage system for Lefkosa. Today, 20,000 m3 of wastewater is treated at the Lefkosa Central Treatment Plant up to the secondary treatment level, in which the degree of treatment varies from 60% to 95% owing to the weather conditions in the country during the year. Effluent water reuse in NC was not accepted due to cultural belief. However, water scarcity was experienced in the country during the last decade, forcing the farmers to benefit from the recycled water. There is no regulatory framework available in the country for effluent water reuse. However, preparation studies are almost finalized after discussions among government and European Union (EU) agencies. Cyprus, as an EU country, has an obligation to treat the wastewater up to the secondary level before releasing it in an environmentally friendly nature, following the Directive 91/271/EEC. This paper analyzes the effluent water reuse possibilities as a component of integrated water resource management in Northern Cyprus considering laboratory experiment results. It appears that applying tertiary treatment in Northern Cyprus will allow 20 MCM of water contribution to the water budget and it will help protect the vulnerable environment. Also, since the cost of tertiary treatment will be 0.2 United States dollars (USD)/m3, it would be reasonable to prefer this process to the desalination of water, which costs of 1 USD/m3.

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