Your search found 30 records
1 Singhal, M. K.; Kumar, D.; Chandra, S.; Kumar, A.. 1979. Conjunctive use of ground and surface waters in Gandak command area. In Proceedings of the Workshop on Conjunctive Use of Surface and Ground Water, Roorkee, India, 12-14 April 1979. Vol. 1. Roorkee, India: Water Resources Development Centre, University of Roorkee. pp.cu83-cu92.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 PRO Record No: H04938)
(Location: IWMI-HQ Call no: P 1473 Record No: H07229)
3 Chawala, A. S.; Raghuvanshi, C. S.; Kumar, A.. 1989. Economic analysis of lift technologies and access of small and marginal farmers to ground water. In Institute of Rural Management. Workshop on efficiency and equity in groundwater use and management, Anand, India, 30 January - 1 February 1989. Anand, India: Institute of Rural Management. 25p.
(Location: IWMI-HQ Call no: 631.7.6.3 G000 INS Record No: H07750)
4 Kumar, A.; Yoganarasimhan, G. N. 1980. Optimal length of lining of field channels. In International Symposium on Water Resources Systems, December 20-22, 1980: Proceedings, Volume 1. Meerut, India: Sarita Prakashan. pp.IV/10/57-62.
(Location: IWMI-HQ Call no: 333.91 G000 INT Record No: H017514)
(Location: IWMI-HQ Call no: P 4348 Record No: H019278)
(Location: IWMI-HQ Call no: 631.7.1 G635 TYA Record No: H022022)
7 Sharma, H. C.; Kumar, A.; Kumar, V. 2000. Delineation of ground water table zones in the Tarai belt of North - West Uttar Pradesh using remotely sensed data and their relationship with soils. In Mehrotra, R.; Soni, B.; Bhatia, K. K. S. (Eds.), Integrated water resources management for sustainable development - Volume 1. Roorkee, India: National Institute of Hydrology. pp.110-114.
(Location: IWMI-HQ Call no: 333.91 G000 MEH Record No: H028043)
8 Kumar, A.. 2000. A quantitative study of the pollution and physico-chemical conditions of the River Mayurakshi in Santhal Pargana, Bihar. In Trivedy, R. K. (Ed.), Pollution and biomonitoring of Indian Rivers. Jaipur, India: ABD Publishers. pp.246-251.
(Location: IWMI-HQ Call no: 574.526323 G635 TRI Record No: H028436)
9 Kumar, A.. 2002. Struggle to save Nagpur’s water bodies. Economic and Political Weekly, December 37(5):4987-4989.
(Location: IWMI-HQ Call no: P 6141 Record No: H031002)
10 Kumar, A.. 2002. Water supply schemes in Vidarbha. Economic and Political Weekly, 37(46):4603-4605.
(Location: IWMI-HQ Call no: P 6503 Record No: H032754)
11 Kumar, A.; Kumar, P. 2003. Food safety measures: Implications for fisheries sector in India. Indian Journal of Agricultural Economics, 58(3):365-374.
(Location: IWMI-HQ Call no: PER Record No: H033722)
12 Kumar, A.; Shyam, R.; Tyagi, N. K.; Peralta, R. C. 1998. Reconnaissance optimal sustainable groundwater pumping strategies for the Lower Ghaggar Basin. In Pereira, L. S.; Gowing, J. W. (Eds.). Water and the environment: Innovation issues in irrigation and drainage: Selected papers of the 1st Inter-Regional Conference “Environment-Water: Innovative Issues in Irrigation and Drainage,” Lisbon, Portugal, Sept. 1998. London, UK: E & FN Spon. pp.450-455.
(Location: IWMI-HQ Call no: 631.7.1 G000 PER Record No: H039056)
13 Kumar, A.. 2006. Hydrological assessment of natural water springs for sustaining water needs in the Himalayan region. In Water, Engineering and Development Centre (WEDC). Sustainable development of water resources, water supply and environmental sanitation: 32nd WEDC International Conference, Bandaranaike Memorial International Conference Hall, Colombo, Sri Lanka, 13th - 17th November 2006. Preprints. Leicestershire, UK: Water, Engineering and Development Centre (WEDC) pp.208-211.
(Location: IWMI HQ Call no: 333.91 G000 WAT Record No: H041036)
14 Singh, V. P.; Singh, G.; Singh, S. P.; Kumar, A.; Singh, Y.; Johnson, D. E.; Mortimer, A. M. 2008. Direct seeding and weed management in the irrigated rice-wheat production system. In Singh, Y.; Singh, V. P.; Chauhan, B.; Orr, A.; Mortimer, A. M.; Johnson, D. E.; Hardy, B. (Eds.). Direct seeding of rice and weed management in the irrigated rice-wheat cropping system of the Indo-Ganetic Plains. Los Banos, Philippines: International Rice Research Institute (IRRI). pp.131-137.
(Location: IWMI HQ Call no: e-copy only Record No: H043137)
(0.52 MB)
15 Avasthe, P. K.; Kumar, A.; Rahman, H. 2013. Potential water management technologies for sustainable agriculture in Sikkim and Darjeeling Hills of India. In Palanisami, Kuppannan; Sharda, V. N.; Singh, D. V. (Eds.). Water management in the hill regions: evidence from field studies. [Outcome of the IWMI and ICAR Workshop organized by IWMI-TATA Water Policy Research Program]. New Delhi, India: Bloomsbury Publishing India. pp.207-231.
(Location: IWMI HQ Call no: 333.91 G635 PAL Record No: H045735)
16 Rautaray, S. K.; Mishra, A.; Mohanty, R. K.; Verma, O. P.; Behera, M. S.; Kumar, A.. 2013. Pond based integrated farming system for yield stability in rainfed areas under aberant weather conditions. In Madhu, M.; Jakhar, P.; Adhikary, P. P. (Eds.). Natural resource conservation emerging issues and future challenges. New Delhi, India: Satish Serial Publishing House. pp. 383-388.
(Location: IWMI HQ Call no: e-copy only Record No: H046251)
(0.11 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H046422)
This study provides the comprehensive analysis of changes in mean and extreme temperature indices of India to assist the climate change mitigation and adaptation strategies and to add information for the global comparisons, using a high-resolution daily gridded temperature data set (1 ×1 ) during 1971–2005. In addition to the indices recommended by the World Meteorological Organization/CLIVAR Expert Team on Climate Change Detection and Indices, few more indices having social and agricultural implication are investigated at the seasonal and annual scales, utilizing widely adopted statistical methodologies in climate research. The results show, in general, a robust signal of warming, broadly consistent with what has been observed and predicted in other parts of the world in the context of global warming. The frequency and intensity of warm extremes, especially representing the daily minimum temperature, have increased with simultaneous decreases in cold extremes in large parts of the country, but the spatial distribution of the trend magnitude reflects the complex natural climatic settings of India and its possible interaction with the anthropogenic forcing. Seasonal analysis reveals a faster warming in day and night temperatures in winter affecting the major wheat crop. In summer, however, both human and ecosystems appear to be more vulnerable to the increasing tendency of the heatwave occurrences, particularly during night-time, since the 1990s. The relationship with the large-scale natural climatic modes indicates that the warming indices tend to increase in the year following the El Ni˜no events as evident from the correlation with the NINO3.4 index, with a relatively higher association in the monsoon season. Moreover, the concurrent correspondence of the summer heatwaves with the north Indian Ocean sea surface temperature suggests a degree of predictability of the heat stress episode.
(Location: IWMI HQ Call no: e-copy only Record No: H046713)
(1.08 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H046714)
(85.60 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H047868)
(2.46 MB)
In the anticipated water scarcity and global warming scenario; it is imperative to identify suitable irrigation scheduling strategy in paddy fields for increasing water productivity and mitigating greenhouse gas (GHG) emissions. We conducted a two year (dry season of 2014 and 2015) field experiment for irrigation scheduling based on tensiometric measurement of soil water potential (SWP)in order to quantify temporal and seasonal variations in GHGs emissions and their trade off relationship at five levels of SWPs viz. SWP 1 (-20 kPa), SWP 2 (-30 kPa), SWP 3 (-40 kPa), SWP 4 (-50 kPa) and SWP 5 (-60 kPa), in addition to the traditional practice of growing flooded rice (CF). Fluxes of methane (CH4) and nitrous oxide (N2O) during the growing period were measured using manual closed chamber-gas chromatograph and the carbon dioxide (CO2) flux was measured using an infrared CO2 analyzer. A significant decrease in seasonal cumulative CH4 emission (30–60.2%) was recorded at different SWPs as compared to CF. In contrast, emission of CO2 and N2O increased by 12.9–26.6% and 16.3–22.1% respectively at SWPs 1 and 2; conversely, a significant decrease in emissions of these gases were observed at higher SWPs (SWPs 3–5). Among different SWP treatments, irrigation scheduling at SWP 2 maintained yield at par with CF with water saving of 32.9–41.1% and reduced CH4 emission (43–44.1%). However, due to increase in CO2 and N2O emission at SWP 2, there was no significant reduction in global warming potential (GWP) as compared with CF. Among different rice growth stages GHGs emission were predominant during vegetative growth stage. Regression relationship of GHGs emission with key soil parameters was employed to predict seasonal emissions of GHGs from paddy field. The results of this study suggest that scheduling irrigation at SWP 2 can be an effective strategy in order to save water, maintain rice yield and mitigate CH4 emission from direct seeded paddy fields in eastern India, however further research is needed to identify suitable management strategy for reducing CO2 and N2O emissions at SWP 2 in order to reduce the GWP.
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