Your search found 12 records
1 Amarasinghe, Upali; Shah, Tushaar; Turral, Hugh; Anand, B. K.. 2007. India’s water future to 2025-2050: business as usual scenario and issues. Paper presented at the National Workshop on National River Linking Project of India: analysis of hydrological, social and ecological issues, Delhi, India, 9-10 October 2007. 47p.
Water demand ; River basins ; Water scarcity ; Domestic water ; Irrigation water ; Crop production ; Crop yield ; Food consumption ; Food production ; Food security ; Water supply ; Population growth ; Income / India
(Location: IWMI HQ Call no: IWMI HQ 333.91 G635 AMA Record No: H040791)
This report projects India’s water futures to 2025-2050. And it incorporates the recent changes of demographic patterns and economic environments into the water demand projections. The Business as Usual (BAU) scenario in this report projects the total water demand to increase by 22 and 32 percent by 2025 and 2050, respectively, from the present level of 680 billion cubic meters (BCM). The industrial and the domestic sectors account for 85 percent of the additional demand by 2050. Groundwater dominates irrigation growth of the BAU scenario. This, combined with higher irrigation efficiencies, decreases the irrigation water demand over the 2025-2050 period. The food grain demand under the BAU scenario is projected to decrease. However, the nutritional intake will increase with more non-grain products in the diet, with non-grain products providing 54 percent of the daily calorie supply by 2050. Although the value of grain crop production shows a surplus, the BAU scenario projects substantial imports of maize and pulses and exports of rice and wheat. The BAU scenario envisaged substantial investments for increasing groundwater recharge, spreading water saving technologies, and crop productivity growth. And failing so could require substantial surface water resources, perhaps transfers between basins, especially for meeting the rapidly increasing water demand of industrial and domestic sectors.
2 Amarasinghe, Upali; Bhaduri, Anik; Singh, O. P.; Anand, B. K.. 2007. Managing the unreliability of canal water: case study of diggies in Rajasthan. In National Workshop on National River Linking Project of India: analysis of hydrological, social and ecological issues, Delhi, India, 9-10 October 2007. 22p.
Irrigation canals ; Water delivery ; Irrigation scheduling ; Water storage ; Tanks ; Operations ; Maintenance ; Sprinkler irrigation ; Groundwater irrigation ; Crop production / India / Rajasthan
(Location: IWMI HQ Call no: IWMI HQ 631.7 G635 AMA Record No: H040793)
3 Amarasinghe, Upali; Shah, Tushaar; Singh, O. P.; Anand, B. K.. 2007. Benefits of irrigation water transfers in the National River Linking Project: a case of Ken-Betwa Project. Paper presented at the National Workshop on National River Linking Project of India: analysis of hydrological, social and ecological issues, Delhi, India, 9-10 October 2007. 20p.
River basin management ; Water transfer ; Irrigation programs ; Crop production ; Livestock / India / Ken-Betwa Project
(Location: IWMI HQ Call no: IWMI HQ 631.7 G635 AMA Record No: H040794)
4 Amarasinghe, Upali; Shah, Tushaar; Turral, Hugh; Anand, B. K.. 2007. India’s water future to 2025-2050: business-as-usual scenario and deviations. Colombo, Sri Lanka: International Water Management Institute (IWMI). 41p. (IWMI Research Report 123) [doi: https://doi.org/10.3910/2009.124]
Water demand ; Water supply ; Population growth ; Crop production ; Crop yield ; Groundwater irrigation ; Food security / India
(Location: IWMI HQ Call no: IWMI 333.91 G635 AMA Record No: H040852)
(677 KB)
With a rapidly expanding economy many changes are taking place in India today. The business-as-usual (BAU) scenario, which assumes the continuation of current trends of key water demand drivers, will meet the future food demand. However, it leads to a severe regional water crisis by 2050, where many river basins will reach closure, will be physically water-scarce and will have regions with severely overexploited groundwater resources. While the alternative scenarios of water demand show both optimistic and pessimistic water futures, the scenario with additional productivity growth is the most optimistic, with significant scope for reducing future water demand.
5 Amarasinghe, Upali A.; Bhaduri, Anik; Singh, O. P.; Ojha, A.; Anand, B. K.. 2008. Cost and benefits of intermediate water storage structures: case study of diggies in Rajasthan. In Humphreys, E.; Bayot, R. S.; van Brakel, M.; Gichuki, F.; Svendsen, M.; Wester, P.; Huber-Lee, A.; Cook, S. Douthwaite, B.; Hoanh, Chu Thai; Johnson, N.; Nguyen-Khoa, Sophie; Vidal, A.; MacIntyre, I.; MacIntyre, R. (Eds.). Fighting poverty through sustainable water use: proceedings of the CGIAR Challenge Program on Water and Food, 2nd International Forum on Water and Food, Addis Ababa, Ethiopia, 10-14 November 2008. Vol.3. Water benefits sharing for poverty alleviation and conflict management; Drivers and processes of change. Colombo, Sri Lanka: CGIAR Challenge Program on Water and Food. pp.79-82.
Water storage ; Irrigation programs ; Irrigation canals ; Watercourses ; Irrigation scheduling ; Water delivery ; Water control ; Cost benefit analysis / India / Rajasthan / Kanwarsain Lift Canal
(Location: IWMI HQ Call no: 631.7.3 G000 HUM Record No: H041706)
http://cgspace.cgiar.org/bitstream/handle/10568/3708/IFWF2_proceedings_Volume%20III.pdf?sequence=1
https://vlibrary.iwmi.org/pdf/H041706.pdf
https://vlibrary.iwmi.org/pdf/H041706.pdf
6 Amarasinghe, Upali A.; Shah, Tushaar; Anand, B. K.. 2008. India’s water supply and demand from 2025-2050: business-as-usual scenario and issues. In Amarasinghe, Upali A.; Sharma, Bharat R. (Eds.) Strategic Analyses of the National River Linking Project (NRLP) of India, Series 2. Proceedings of the Workshop on Analyses of Hydrological, Social and Ecological Issues of the NRLP, New Delhi, India, 9-10 October 2007. Colombo, Sri Lanka: International Water Management Institute (IWMI) pp.23-61.
Water demand ; Estimation ; Irrigation water ; River basins ; Water supply ; Simulation models ; Population growth ; Food production ; Food consumption ; Crop yield ; Groundwater irrigation / India / China
(Location: IWMI HQ Call no: IWMI 333.9162 G635 AMA Record No: H041798)
(1005.74 KB)
7 Bharati, Luna; Anand, B. K.; Smakhtin, Vladimir. 2008. Analysis of the Inter-basin Water Transfer Scheme in India: a case study of the Godavari-Krishna link. In Amarasinghe, Upali A.; Sharma, Bharat R. (Eds.) Strategic Analyses of the National River Linking Project (NRLP) of India, Series 2. Proceedings of the Workshop on Analyses of Hydrological, Social and Ecological Issues of the NRLP, New Delhi, India, 9-10 October 2007. Colombo, Sri Lanka: International Water Management Institute (IWMI) pp.63-78.
River basin management ; River basin development ; Development projects ; Water availability ; Water demand ; Water transfer ; Dams ; Canals ; Crop management / India / Godavari River Basin / Krishna River Basin / Polavaram Project / Arthur Cotton Barrage
(Location: IWMI HQ Call no: IWMI 333.9162 G635 AMA Record No: H041799)
(276.65 KB)
8 Amarasinghe, Upali A.; Bhaduri, Anik; Singh, O. P.; Ojha, A.; Anand, B. K.. 2008. Cost and benefits of intermediate water storage structures: case study of diggies in Rajasthan. In Kumar, M. Dinesh (Ed.). Managing water in the face of growing scarcity, inequity and declining returns: exploring fresh approaches. Proceedings of the 7th Annual Partners Meet, IWMI TATA Water Policy Research Program, ICRISAT, Patancheru, Hyderabad, India, 2-4 April 2008. Vol.1. Hyderabad, India: International Water Management Institute (IWMI), South Asia Sub Regional Office. pp.51-66.
Water storage ; Water delivery ; Irrigation scheduling ; Water control ; Irrigation canals ; Watercourses ; Farms ; Crop production ; Cost benefit analysis / India / Rajasthan / Indira Gandhi Nahar Project
(Location: IWMI HQ Call no: IWMI 631.7 G635 KUM Record No: H041871)
(0.29 MB)
9 Mohile, A. D.; Anand, B. K.. 2009. Natural flows assessment and creating alternative future scenarios for major river basins of peninsular India. In Amarasinghe, Upali A.; Shah, Tushaar; Malik, R. P. S. (Eds.). Strategic Analyses of the National River Linking Project (NRLP) of India, Series 1: India’s water future: scenarios and issues. Colombo, Sri Lanka: International Water Management Institute (IWMI) pp.381-403.
River basins ; Flow ; Estimation ; Hydrology ; Models ; Water transfer ; Water use ; Runoff ; Evapotranspiration ; Reservoirs ; Water storage ; Environmental flows ; Water balance ; Irrigation efficiency / India / Brahmani Baitarni River Basin / Cauvery River Basin / Godavari River Basin / Krishna River Basin / Mahanadi River Basin / Narmada River Basin
(Location: IWMI HQ Call no: IWMI 333.9162 G635 AMA Record No: H042048)
(279.34 KB)
10 Bharati, Luna; Smakhtin, Vladimir; Anand, B. K.. 2009. Modeling water supply and demand scenarios: the Godavari–Krishna inter-basin transfer, India. Water Policy, 11(Supplement 1):140-153. [doi: https://doi.org/10.2166/wp.2009.109]
Water scarcity ; Water demand ; Irrigation water ; River basin management ; Water transfer ; Reservoirs ; Canals ; Tanks ; Groundwater ; Crop management ; Rice ; Models / India / Godavari River / Krishna River / Polavaram Project / Vijayawada / Arthur Cotton Barrage / Prakasham Barrage
(Location: IWMI HQ Call no: e-copy only Record No: H042177)
(0.38 MB)
The Government of India’s National River-Linking Plan (NRLP) aims to alleviate emerging water scarcity problems by transferring water from well endowed to more deficient areas. This study evaluated the plausible future scenarios of water availability and use under conditions of various cropping patterns, and with the explicit inclusion (for the first time) of environmental water requirements for one of the links of the NRLP: from the Godavari River at Polavaram to the Krishna River at Vijayawada—the ‘Polavaram Project’. The scenarios were evaluated using the WEAP (Water Evaluation and Planning) model. The study generates information for use in managing emerging trade-offs. The importance of explicit accounting for monthly variability in description of water supply and demand, in the monsoon-driven climate conditions of the region, is advocated. Such detailed scenario simulations and inclusion of previously unaccounted for factors/uses can help to create awareness of potential future problems, inform water management practices and suggest management alternatives. Results show that the proposed water storage and transfer will reduce water deficit within the project command area and significantly reduce dry slow river flow into the Lower Godavari Delta.
11 Bharati, Luna; Anand, B. K.; Garg, Kaushal; Acharya, Sreedhar. 2009. Assessing water allocation strategies in the Krishna River Basin, South India. In Bloschl, G.; van de Giesen, N.; Muralidharan, D.; Ren, L.; Seyler, F.; Sharma, U.; Vrba, J. (Eds.). Improving integrated surface and groundwater resources management in a vulnerable and changing world: proceedings of Symposium JS.3 at the Joint Convention of the International Association of Hydrological Sciences (IAHS) and the International Association of Hydrogeologists (IAH), Hyderabad, India, 6-12 September 2009. Wallingford, UK: International Association of Hydrological Sciences (IAHS) pp.354-361. (IAHS Publication 330)
Water transfer ; Water allocation ; River basins ; Case studies / India / Krishna River / Godavari River / Polavaram Project / Upper Bhima Catchment
(Location: IWMI HQ Call no: e-copy only Record No: H042524)
(0.85 MB)
Water allocation rules are put into place to ensure that various parties receive a portion of developed water supplies. In the Krishna basin, India, all the water available is fully allocated to some purpose for a large part of the year. Over 90% of the allocated water is for irrigation. However, due to increasing demands from the domestic and industrial sectors, as well as expansion in irrigation areas, there is growing competition between the different water use sectors, as well as the three riparian states that share the Krishna basin. In this study, the WEAP (Water Evaluation and Planning) model is used to assess two case studies in which the implications of two separate water transfer schemes are analysed. The first case study presents the feasibility of a proposed water transfer scheme from the Godawari River at the downstream part of the Krishna River. The second case study presents analysis from the Upper Bhima catchment in the upstream part of the Krishna basin. In the second case study, the impact of water transfer out of the basin for electricity generation, on downstream agricultural water demands, is analysed. Results from both studies stress the fact that water resources management in the region has to be done on a seasonal basis by taking monthly variability into consideration. In both cases, water scarcity occurs during the critical dry months.
12 Bharati, Luna; Smakhtin, Vladimir; Eriyagama, Nishadi; Anand, B. K.. 2009. Environment flows: moving from concepts to application, a case study from India. Paper presented at the International Environmental Water Allocation Conference, Port Elizabeth, South Africa, 23-26 February 2009. 25p.
Environmental flows ; River basin management ; Water allocation ; Simulation models ; Water transfer ; Water use ; Canals ; Reservoirs ; Case studies / India / Godavari River / Krishna River / Polavaram Reservoir
(Location: IWMI HQ Call no: e-copy only Record No: H043123)
(0.22 MB)
Water allocation rules are put in place to ensure that various parties receive a portion of developed water supplies. Allocation of river water to cities, industries and agriculture has been a common practice but now there is an increasing recognition of the need to also allocate water for environmental purposes. Furthermore, it is now recognized that such environmental water demands need to be considered explicitly alongside those of other users early on, at the planning and design stages of water resource development projects. This paper describes a desktop hydrology-based environmental flow assessment method developed at the International Water Management Institute and it’s applicability in river basin management. A case study from India is presented where the feasibility of a proposed water transfer scheme from the Godawari River at Polavaram to the Krishna river is analyzed. The characteristic feature of the study is the simulation of the impact of various feasible cropping patterns on water demands as well as the explicit inclusion, of environmental water requirements in the simulations. The WEAP (Water Evaluation and Planning) model was applied to simulate water supply versus demand under the current water use and under water use anticipated after the construction of the Polavaram reservoir and link canal. Results suggest that the proposed Polavaram reservoir and canal system will reduce the seasonal pressure on water for the command area of the project. However, this may result in increased water deficits from December to June in the Lower Godavari Delta, downstream of the Polavaram reservoir. The importance of explicit accounting for monthly variability in description of water supply and demands in the conditions of monsoon-driven climate of the region is advocated. Similarly, the need to ensure environmental flows should also be considered in the context of seasonal variability, as it is mostly in the dry months that water allocation problems become critical. Such detailed scenario analysis can help to create awareness of potential future problems, inform water management practices and suggest management alternatives.
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