Your search found 6 records
1 Sharma, A. K.; Moorti, T. V.; Sharma, R. K. 1994. Kangra Irrigation Network: A great potential for freshwater aquaculture. Indian Farming, February:22-25.
Irrigation systems ; Water resources ; Agricultural production ; Water use ; Rice ; Fisheries / India
(Location: IWMI-HQ Call no: P 3455 Record No: H014586)
2 Rajappa, R.; Pal, K.; Sharma, A.; Sharma, A. K.. 1994. Environmental impact assessment for Subarnarekha Irrigation Project. International Journal of Water Resources Development, 10(2):203-219.
Environmental effects ; Reservoirs ; Irrigation management ; Irrigation programs ; Development projects ; River basins ; Water resources development / India / Orissa
(Location: IWMI-HQ Call no: PER Record No: H014798)
3 Tiwari, A. K.; Sharma, A. K.; Tiwari, R. K.; Bhatt, V. K. 2000. Estimation of runoff and sediment yield under different land uses in Bundelkhand Region. In Mehrotra, R.; Soni, B.; Bhatia, K. K. S. (Eds.), Integrated water resources management for sustainable development - Volume II. Roorkee, India: National Institute of Hydrology. pp.989-994.
Runoff ; Estimation ; Sedimentation ; Reservoirs ; Soil conservation ; Water conservation ; Catchment areas ; Land use ; Watersheds ; Models / India / Bundelkhand Region
(Location: IWMI-HQ Call no: 333.91 G000 MEH Record No: H028111)
4 Kaini, S.; Gardner, T.; Sharma, A. K.. 2020. Assessment of socio-economic factors impacting on the cropping intensity of an irrigation scheme in developing countries. Irrigation and Drainage, 69(3):363-375. [doi: https://doi.org/10.1002/ird.2427]
Intensive cropping ; Irrigation schemes ; Socioeconomic environment ; Developing countries ; Food security ; Land tenants ; Land ownership ; Markets ; Agricultural products ; Water availability ; Water user associations ; Farmland ; Stakeholders ; Households ; Case studies ; Models / Nepal / Tarawali Irrigation Scheme / Lamjung / Manang
(Location: IWMI HQ Call no: e-copy only Record No: H049898)
(0.64 MB)
An increase of cropping intensity of irrigation schemes is required to address the challenge of global food security. Socio-economic factors also have a significant impact on the cropping intensity within an irrigated area. This research is focused on understanding the impact of socio-economic factors on cropping intensity in an irrigation scheme. To assess the socio-economic factors and cropping intensity, a framework was developed, which we believe can be adopted in other irrigation schemes in developing countries. The framework was applied to an irrigation area in Nepal. An interview checklist and observation techniques were used as the primary data-gathering method, which followed the concepts articulated in the developed framework. A census survey was also conducted in 72 farmer households. The results showed that farmers' socio-economic status and their socio-cultural practices affected cropping intensity. The research also highlighted that mechanization in agricultural practices, coordination between irrigation and agricultural district offices with farmers, market facilities for agricultural inputs and agricultural products, and land tenancy agreements all significantly influenced agricultural intensification. Based on the findings of this research, an approach to intensify cropping intensity by farm owners and farming tenants has been developed, which can be applied in irrigated areas in the developing world.
5 Kaini, S.; Nepal, S.; Pradhananga, S.; Gardner, T.; Sharma, A. K.. 2020. Impacts of climate change on the flow of the transboundary Koshi River, with implications for local irrigation. International Journal of Water Resources Development, 27p. (Online first) [doi: https://doi.org/10.1080/07900627.2020.1826292]
River basins ; International waters ; Flow discharge ; Climate change ; Hydrology ; Models ; Forecasting ; Irrigation water ; Water availability ; Irrigation schemes ; Water requirements ; Precipitation ; Land use ; Temperature data / Nepal / Koshi River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H050087)
https://www.tandfonline.com/doi/pdf/10.1080/07900627.2020.1826292?needAccess=true
https://vlibrary.iwmi.org/pdf/H050087.pdf
https://vlibrary.iwmi.org/pdf/H050087.pdf
(8.87 MB) (8.87 MB)
This study assesses climate change impacts on the hydrological regime of a river basin and its implications for future irrigation water availability in the Koshi River basin using RCPs 4.5 and 8.5 over short-term (2016-2045), mid-century (2036-2065) and end-of-century (2071-2100) periods. Average flow in the Koshi River is projected to increase. Projections of average minimum monthly river flow suggest that the areas of winter wheat and monsoon paddy rice could be increased. However, the planting period of paddy rice should be delayed by one month (July to August) to capture the expected increased water availability in the river
6 Kaini, S.; Harrison, M. T.; Gardner, T.; Nepal, Santosh; Sharma, A. K.. 2022. The impacts of climate change on the irrigation water demand, grain yield, and biomass yield of wheat crop in Nepal. Water, 14(17):2728. (Special issue: How Does Agricultural Water Resources Management Adapt to Climate Change?) [doi: https://doi.org/10.3390/w14172728]
Climate change ; Irrigation water ; Water demand ; Crop yield ; Biomass ; Wheat ; Cropping systems ; Irrigation schemes ; Irrigation management ; Crop modelling ; Forecasting ; Water requirements ; Extreme weather events ; Farmers / Nepal / Sunsari Morang Irrigation Scheme
(Location: IWMI HQ Call no: e-copy only Record No: H051485)
https://www.mdpi.com/2073-4441/14/17/2728/pdf?version=1662382187
https://vlibrary.iwmi.org/pdf/H051485.pdf
https://vlibrary.iwmi.org/pdf/H051485.pdf
(4.81 MB) (4.81 MB)
The Nepalese Sunsari Morang Irrigation district is the lifeblood of millions of people in the Koshi River basin. Despite its fundamental importance to food security, little is known about the impacts of climate change on future irrigation demand and grain yields in this region. Here, we examined the impacts of climate change on the irrigation demand and grain yield of wheat crop. Climate change was simulated using Representative Concentration Pathways (RCPs) of 4.5 and 8.5 for three time horizons (2016–2045, 2036–2065, and 2071–2100) in the Agricultural Production Systems Simulator (APSIM). For the field data’s measured period (2018–2020), we showed that farmers applied only 25% of the irrigation water required to achieve the maximum potential grain yield. Actual yields were less than 50% of the potential yields. Projected irrigation water demand is likely to increase for RCP4.5 (3%) but likely to decrease under RCP8.5 (8%) due to the truncated crop duration and lower maturity biomass by the end of the 21st century. However, simulated yields declined by 20%, suggesting that even irrigation will not be enough to mitigate the severe and detrimental effects of climate change on crop production. While our results herald positive implications for irrigation demand in the region, the implications for regional food security may be dire.
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