Your search found 3 records
1 Venot, Jean-Philippe; Biggs, T.; Molle, F.; Turral, H. 2008. Reconfiguration and closure of river basins in South India: trajectory of the lower Krishna basin. Water International, 33(4):436-450.
Call no: e-copy only Record No: H041815)
2 Venot, Jean-Philippe; Jella, Kiran; Bharati, Luna; George, B.; Biggs, T.; Gangadhara Rao, Parthasaradhi; Gumma, M. K.; Acharya, Sreedhar. 2010. Farmers' adaptation and regional land use changes in irrigation systems under fluctuating water supply, South India. Journal of Irrigation and Drainage Engineering, 136(9):595-609. [doi: https://doi.org/10.1061/(ASCE)IR.1943-4774.0000225]
Irrigation systems ; Irrigation programs ; Water shortage ; Water scarcity ; Water availability ; River basins ; Crop management ; Productivity / India / Nagarjuna Sagar Project
(Location: IWMI HQ Call no: PER Record No: H043081)
(2.46 MB)
In closing river basins where nearly all available water is committed to existing uses, downstream irrigation projects are expected to experience water shortages more frequently. Understanding the scope for resilience and adaptation of large surface irrigation systems is vital to the development of management strategies designed to mitigate the impact of river basin closure on food production and the livelihoods of farmers. A multi-level analysis (farm level surveys and regional assessment through remote sensing techniques and statistics) of the dynamics of irrigation and land use in the Nagarjuna Sagar project (South India) in times of changing water availability (2000β2006) highlights that during low flow years, there is large-scale adoption of rainfed βor supplementary irrigated- crops that have lower land productivity but higher water productivity, and that a large fraction of land is fallowed. Cropping pattern changes during the drought reveal short term coping strategies rather than long-term evolutions: after the shock, farmers reverted to their usual cropping patterns during years with adequate canal supplies. For the sequence of water supply fluctuations observed from 2000β2006, the Nagarjuna Sagar irrigation system shows a high level of sensitivity to short-term perturbations, but long-term resilience if flows recover. Management strategies accounting for local level adaptability will be necessary to mitigate the impacts of low flow years but there is scope for improvement of the performance of the system.
3 Van Rooijen, D.; Smout, I.; Drechsel, Pay; Biggs, T.. 2014. Wastewater treatment capacity, food production and health risk in peri-urban areas: a comparison of three cities. In Maheshwari, B.; Purohit, R.; Malano, H.; Singh, V. P.; Amerasinghe, Priyanie. (Eds.). The security of water, food, energy and liveability of cities: challenges and opportunities for peri-urban futures. Dordrecht, Netherlands: Springer. pp.219-231. (Water Science and Technology Library Volume 71)
Wastewater treatment ; Water reuse ; Food production ; Health hazards ; Public health ; Periurban areas ; Wastewater irrigation ; Irrigated farming ; Developing countries / Ghana / Ethiopia / India / Addis Ababa / Accra / Hyderabad
(Location: IWMI HQ Call no: IWMI Record No: H046689)
(3.72 MB)
Growing cities and their demand for water challenges the management of water resources and provides opportunities for wastewater use in irrigated agriculture. In the cases studied, large volumes of fresh water are extracted from sources often located increasingly further away from the city, while investments in wastewater disposal often lag behind. The resulting environmental impact in peri-urban areas can have multiple consequences for public health, in particular through the use of untreated or poorly treated wastewater in irrigated agriculture. Despite significant efforts to increase wastewater treatment, substantial volumes of untreated wastewater are applied in irrigated agriculture in Addis Ababa (Ethiopia), Accra (Ghana) and Hyderabad (India). Additional options for safeguarding public health are required to allow the cities to maintain the benefits from already existing, but largely informal, wastewater reuse.
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