Your search found 6 records
1 Nanayakkara, S. M. A.; Nanayakkara, V. A. S. P. 2006. New composite construction material for low cost underground water tanks. Engineer, 39(4)26-36.
Water tanks ; Design ; Construction materials ; Rain water management ; Water harvesting ; Case studies / Sri Lanka
(Location: IWMI HQ Call no: PER Record No: H043249)
(0.86 MB)
2 Molden, David. 2011. Jalaya ekres kara thabagenemehi athi vedagathkama. In Sinhalese. [Importance of sustainable water management]. Vyaparika Handa, 2(1):72-73.
Water management ; Water storage ; Water tanks ; Water resources ; Climate change ; Reservoirs ; Groundwater recharge ; Sustainability ; Farmers
(Location: IWMI HQ Call no: P 8160 Record No: H047270)
(1.49 MB)
3 Kumpel, E.; Woelfle-Erskine, C.; Ray, I.; Nelson, K. L. 2017. Measuring household consumption and waste in unmetered, intermittent piped water systems. Water Resources Research, 53(1):302-315. [doi: https://doi.org/10.1002/2016WR019702]
Water use ; Household consumption ; Measurement ; Water availability ; Water supply ; Water distribution systems ; Water storage ; Storage containers ; Water tanks ; Pipes ; Water loss ; Metering ; Water users ; Socioeconomic environment ; Urban areas / India / Hubli-Dharwad
(Location: IWMI HQ Call no: e-copy only Record No: H048047)
(1.35 MB)
Measurements of household water consumption are extremely difficult in intermittent water supply (IWS) regimes in low- and middle-income countries, where water is delivered for short durations, taps are shared, metering is limited, and household storage infrastructure varies widely. Nonetheless, consumption estimates are necessary for utilities to improve water delivery. We estimated household water use in Hubli-Dharwad, India, with a mixed-methods approach combining (limited) metered data, storage container inventories, and structured observations. We developed a typology of household water access according to infrastructure conditions based on the presence of an overhead storage tank and a shared tap. For households with overhead tanks, container measurements and metered data produced statistically similar consumption volumes; for households without overhead tanks, stored volumes underestimated consumption because of significant water use directly from the tap during delivery periods. Households that shared taps consumed much less water than those that did not. We used our water use calculations to estimate waste at the household level and in the distribution system. Very few households used 135 L/person/d, the Government of India design standard for urban systems. Most wasted little water even when unmetered, however, unaccounted-for water in the neighborhood distribution systems was around 50%. Thus, conservation efforts should target loss reduction in the network rather than at households.
4 Ariyananda, T. 2017. Rain water harvesting manual for Jaffna. Battaramulla, Sri Lanka: Lanka Rain Water Harvesting Forum; Jaffna, Sri Lanka: World Vision Lanka. 76p.
Rainwater harvesting ; Technology ; Water storage ; Water tanks ; Maintenance ; Water resources ; Domestic water ; Water supply ; Water use ; Drinking water ; Water quality ; Water policy ; Legislation ; Catchment areas ; Projects ; Meteorological stations ; Mobile units ; Social aspects ; Economic aspects ; Case studies / Sri Lanka / Jaffna
(Location: IWMI HQ Call no: 628.14 G744 ARI Record No: H049060)
https://drive.google.com/file/d/0B8hkh22KemLuNlhwLTdDRS03bUk/view?usp=sharing
https://vlibrary.iwmi.org/pdf/H049060.pdf
https://vlibrary.iwmi.org/pdf/H049060.pdf
(6.30 MB) (6.30 MB)
5 Abeywardana, N.; Schutt, B.; Wagalawatta, T.; Bebermeier, W. 2019. Indigenous agricultural systems in the dry zone of Sri Lanka: management transformation assessment and sustainability. Sustainability, 11(3): 1-22. [doi: https://doi.org/10.3390/su11030910]
Agricultural systems ; Agricultural practices ; Sustainable agriculture ; Arid zones ; Assessment ; Community management ; Irrigated farming ; Irrigated land ; Irrigation management ; Landscape ; Participatory management ; Indigenous knowledge ; Water harvesting ; Water management ; Water tanks ; Tank irrigation ; Paddy ; Cultivation ; Stakeholders ; Farmers organizations ; Socioeconomic environment ; Soils / Sri Lanka / Anuradhapura
(Location: IWMI HQ Call no: e-copy only Record No: H049148)
(9.30 MB) (9.30 MB)
The tank-based irrigated agricultural system in the Dry Zone of Sri Lanka is one of the oldest historically evolved agricultural systems in the world. The main component of the system consists of a connected series of man-made tanks constructed in shallow valleys to store, convey and utilize water for paddy cultivation. Up to 10,000 tanks originating from the heydays of ancient kingdoms are still integrated in the current agricultural landscape. During the last two millennia, this indigenous system has undergone many changes in technological, management and socio-cultural norms. This research aimed to analyze the current management practices and existing indigenous aspects of the Dry Zone irrigated agricultural system from the viewpoint of farmers who are the main stakeholders of the system. Altogether, 49 semi-structured interviews were conducted in seven villages in the Anuradhapura district and a detailed survey was conducted in the village of Manewa with a mixed research approach. The basic elements of the indigenous landscape, agricultural practices and management structures based on Farmer Organizations were mapped and examined in detail. The analysis of results shows that the sustainability of the indigenous agricultural system is vulnerable to rapid changes due to modernization, market changes, education levels, and inconsistent management decisions. The case study demonstrates the value of preserving indigenous agricultural systems and the negative outcomes of current management interventions that neglect the indigenous system. Therefore, careful interventions and innovations are needed to adapt the tank-based indigenous agricultural system of the Dry Zone of Sri Lanka so as to preserve ecological and socio-economic sustainability.
6 Bos, D. G. 2021. Private assets for public benefit: the challenge of long-term management of domestic rainwater tanks. Blue-Green Systems, 3(1):1-12. (Online first) [doi: https://doi.org/10.2166/bgs.2021.003]
Rainwater harvesting ; Stormwater management ; Water tanks ; Infrastructure ; Maintenance ; Private land ; Community involvement ; Water supply ; Pumps ; Households ; Domestic water / Australia / Melbourne / Mount Evelyn
(Location: IWMI HQ Call no: e-copy only Record No: H050463)
https://iwaponline.com/bgs/article-pdf/doi/10.2166/bgs.2021.003/899782/bgs2021003.pdf
https://vlibrary.iwmi.org/pdf/H050463.pdf
https://vlibrary.iwmi.org/pdf/H050463.pdf
(0.40 MB) (408 KB)
This study explored the relationship private landowners have with their domestic rainwater tank and how that relationship influences the reliability of privately operated rainwater tanks for long-term performance and delivery of service. It found that tank owners generally placed a high value on their tank, desired to have them fully operational and made a reasonable effort to keep them functioning. However, the frequency and extent of maintenance action and effort was variable, and in the context of a private residence, rainwater tanks were typically afforded a low relative priority for repair when compared with other residential assets. This low relative priority could be a primary driver for the reported delay between when a fault occurs with the tank and when it is repaired. This ‘repair lag’ means that a portion of domestic rainwater tanks are likely to be non-operational at any one time. When planning a decentralised system for the management of stormwater, redundancies should be included to cover these gaps in service delivery. It is also recommended that programmes that support private landowners to maintain their rainwater tanks are implemented to minimise repair lag.
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