Your search found 7 records
1 Samra, J. S.; Panda, D. K.; James, B. K.; Sethi, R. R.; Singhandube, R. B.; Verma, H. N. 2006. Drought 2002: Impacts on groundwater resources of Orissa. In Samra, J. S.; Singh, G.; Dagar, J. C. (Eds.). Drought management strategies in India. New Delhi, India: Indian Council of Agricultural Research. Natural Resource Management Division. pp.267-277.
(Location: IWMI HQ Call no: 577.22 G635 SAM Record No: H040123)
2 Mohanty, R. K.; Mishra, Atmaram; Panda, D. K.; Patil, D. U. 2015. Effects of water exchange protocols on water quality, sedimentation rate and production performance of Penaeus monodon in earthen ponds. Aquaculture Research, 46(10):2457-2468. [doi: https://doi.org/10.1111/are.12404]
Aquaculture ; Water use ; Water quality ; Water productivity ; Water balance ; Sedimentation ; Penaeus monodon ; Ponds ; Environmental aspects ; Biomass
(Location: IWMI HQ Call no: e-copy only Record No: H046421)
This study was carried out in farmers’ fields to quantify the total water and consumptive water use in grow-out culture of Penaeus monodon under recommended package of practice with two different water management protocols: T1, with no water exchange and T2, with regulated water exchange. Treatment-wise estimated total water use, was 2.09 and 2.43 ha-m 122 day 1, while the computed consumptive water use index (m3 kg 1 biomass) was 5.35 and 6.02 in T1 and T2 respectively. Lower rates of water exchange (T2) showed significantly improved (P < 0.05) crop performance in terms of performance index (19.75 0.75), production-size index (74.1 3.4), survival rate (80.13 1.7%) and productivity (2.44 0.08 t) over the zero water exchange. The shrimp pond water quality suitability index (WQSI) infers that regulated water exchange (T2) improved the overall suitability of water quality for shrimp culture. WQSI up to 90 days of culture ranged between 7.5–9.0 in T2, needs little management while in the last month of rearing, it was good with moderate management requirements. Treatment-wise sediment load ranged between 50.4–56.3 m3 t1 shrimp biomass. High intensity of water exchange and low apparent feed conversion ratio influenced in lowering the sedimentation rate. Regulated water exchange protocol (T2) performed well (higher net total water productivity and net consumptive water productivity) against no water exchange (T1). A higher OV:CC ratio (ratio of the output value to the cost of cultivation) indicated that T2 had a distinct edge over the T1 protocol.
3 Panda, D. K.; Mishra, Atmaram; Kumar, A.; Mandal, K. G.; Thakur, A. K.; Srivastava, R. C. 2014. Spatiotemporal patterns in the mean and extreme temperature indices of India, 1971–2005. International Journal of Climatology, 34(13):3585-3603. [doi: https://doi.org/10.1002/joc.3931]
(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.
4 Mohanty, R. K.; Kumar, A.; Mishra, Atmaram; Panda, D. K.; Patil, D. U. 2014. Water budgeting and management: enhancing aquacultural water productivity. Orissa, India: Indian Council of Agricultural Research. Directorate of Water Management. 70p. (Research Bulletin 63)
Water budget ; Water management ; Water productivity ; Water quality ; Aquaculture ; Fish culture ; Shrimp culture ; Farming ; Sediment ; Feeds ; Protocols ; Nutrients ; Salinity ; Ponds ; Economic aspects / India
(Location: IWMI HQ Call no: e-copy only Record No: H046713)
(1.08 MB)
5 Mishra, Atmaram; Sharma, C. S.; Panda, S. N.; Jena, S. K.; Patil, D. U.; Panda, D. K.; Kumar, A. 2014. Flood induced land use land cover changes and river dynamics assessment in Gujarat state, India. Orissa, India: Indian Council of Agricultural Research. Directorate of Water Management. 52p. (Research Bulletin 68)
Flooding ; Land use ; Land cover ; Satellite imagery ; Vegetation ; Geomorphology ; Drainage ; Remote sensing ; GIS ; Rivers ; Assessment / India / Gujarat
(Location: IWMI HQ Call no: e-copy only Record No: H046714)
(85.60 MB)
6 Mohanty, R. K.; Mishra, Atmaram; Panda, D. K.; Patil, D. U. 2016. Water budgeting in a carp-prawn polyculture system: impacts on production performance, water productivity and sediment stack. Aquaculture Research, 47(7):2050-2060. [doi: https://doi.org/10.1111/are.12659]
Water budget ; Water productivity ; Water use ; Water quality ; Water management ; Protocols ; Aquaculture ; Prawns and shrimps ; Production policies ; Performance evaluation ; Sediment / India
(Location: IWMI HQ Call no: e-copy only Record No: H046746)
(0.21 MB)
This study was designed to quantify the total water requirement and consumptive water use in carpprawn polyculture system under different water management protocols, using water balance model. Under different water management protocols, treatment-wise estimated total water use, TWU (9104, m3) was 3.7, 4.6 and 3.9, while the computed consumptive water use index, CWUI (m3 kg 1 biomass) was 6.62, 9.31 and 7.08, in T1 (no water exchange), T2 (periodic water exchange) and T3 (regulated water exchange) respectively. Significantly higher yield (P < 0.05) in both T2 and T3 over T1, was probably due to water exchange that improved the rearing environment. Although intensity of water exchange was more in T2, significant variation (P < 0.05) in overall growth and yield was not recorded between T2 and T3. Treatmentwise sediment load ranged between 54.6 and 71.3 m3 t 1 biomasses. Higher sediment load was recorded at lower intensity of water exchange as well as with higher apparent feed conversion ratio. Higher net total water productivity, net consumptive water productivity and OV-CC ratio in T3 infers that regulated water exchange has a distinct edge over the no water exchange protocol. Restricted water use instead of regular/excess water exchange not only improves the production performance and water productivity, but also helps in lessening the operational pumping cost.
7 Panda, D. K.; Ambast, S. K.; Shamsudduha, M. 2021. Groundwater depletion in northern India: impacts of the sub-regional anthropogenic land-use, socio-politics and changing climate. Hydrological Processes, 35(2):e14003. [doi: https://doi.org/10.1002/hyp.14003]
Groundwater depletion ; Anthropogenic factors ; Land use change ; Anthropogenic climate change ; Social aspects ; Political aspects ; Water storage ; Aquifers ; Groundwater table ; Extreme weather events ; Drought ; Rain ; Temperature ; Food security ; Policies / India / Indo-Gangetic Plain / Punjab / Haryana / Delhi / Rajasthan / Uttar Pradesh / Bihar / West Bengal
(Location: IWMI HQ Call no: e-copy only Record No: H050230)
(2.79 MB)
Understanding the key drivers behind intensive use of groundwater resources and subsequent depletion in northern India is important for future food security of India. Although spatio-temporal changes of groundwater storage (GWS) and its depletion in northern India are mapped using the NASA's GRACE (Gravity Recovery and Climate Experiment) records, the sub-regional diverse socio-political and environmental factors contributing to the variability in groundwater withdrawals and renewals are not well documented. Here, we provide new evidence on changes in GWS at different spatial scales using both observations and satellite-based measurements applying both parametric and non-parametric statistical analyses. The substantial loss of GWS has occurred since the beginning of the 21st century, and the decline in GWS is associated with some record-breaking dry and hot climate events. We present how certain state-based policy decisions, such as supplying free electricity for irrigation, prompted farmers to extract groundwater unsustainably and thus led to widespread GWS deletion, which has been also accelerated by frequent dryness and rising temperatures. In the hotspot of Punjab, Haryana and Delhi of northern India, the extracted groundwater during 1985–2013 is equivalent to a metre-high layer if spread uniformly across its geographical domain. We find that the groundwater storage loss in northern India has increased rapidly from 17 km3 to 189 km3 between the pre-2002 and 2002–2013 periods. This loss in northern India is, therefore, an excellent example of rapid surface greening and sub-surface drying—a result of an interplay of socio-political and environmental factors. As groundwater continues to be treated as a common natural resource and no clear definition exists to guide policymaking, this study also illustrates how the administrative district level approach can solve the widespread problem of depletion.
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