Your search found 6 records
1 Singh, S.; Singh, S. K.. 2000. Evolution of water table with subsurface drainage for variable recharge and constant ET. 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.200-207.
Water table ; Subsurface drainage ; Evapotranspiration ; Evaporation ; Recharge ; Mathematical models
(Location: IWMI-HQ Call no: 333.91 G000 MEH Record No: H028051)
2 Singh, S. K.; Mishra, G. C.; Swamee, P. K.; Ojha, C. S. P. 2002. Aquifer diffusivity and stream resistance from varying stream stage. Journal of Irrigation and Drainage Engineering, 128(1):57-61.
(Location: IWMI-HQ Call no: PER Record No: H029706)
3 Narain, P.; Sani, S. P.; Singh, S. K.. 2006. Strategies for improving soil and water quality in arid and rainfed agro-ecosystems of India. In Indian Society of Soil Science. International Conference on Soil, Water and Environmental Quality: Issues and Strategies, Proceedings, New Delhi, India, 28 January – 1 February 2005. New Delhi, India: Indian Society of Soil Science. pp.441-452.
(Location: IWMI-HQ Call no: 333.91 G635 IND Record No: H038947)
4 Gautam, S. K.; Maharana, C.; Sharma, D.; Singh, A. K.; Tripathi, J. K.; Singh, S. K.. 2015. Evaluation of groundwater quality in the Chotanagpur plateau region of the Subarnarekha River Basin, Jharkhand State, India. Sustainability of Water Quality and Ecology, 6:57-74. [doi: https://doi.org/10.1016/j.swaqe.2015.06.001]
Groundwater ; Water quality ; Assessment ; Irrigation water ; Drinking water ; Water pollution ; Heavy metals ; Contamination ; Alkaline earth metals ; Sodium ; Magnesium ; Ions ; Salinity ; Chemicophysical properties ; Permeability ; Spatial variation ; Monsoon climate ; Hydrogeology ; Geochemistry ; River basins / India / Jharkhand / Chotanagpur Plateau / Subarnarekha River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H047960)
(3.16 MB)
Suitability study of groundwater for domestic and irrigation purposes was carried out in the middle Subarnarekha river basin, Jharkhand. Collected samples were analysed for physicochemical parameters such as conductivity, total dissolved solids (TDS), pH, and heavy metals. After the physicochemical analysis groundwater samples were categorised for simplicity, accordingly, it shows that 52.6% samples fall in Ca-Cl2, 33.3% in Ca-HCO3, 10.5% in Ca-SO4, and 1.7% samples in Mg-HCO3 and rest were Na-Cl type. Interpretation of hydro-geochemical data suggests that leaching of ions followed by weathering and anthropogenic impact (mainly mining and agricultural activities) control the chemistry of groundwater in the study area. The TDS concentration at Govindpur site varies from 2677 mg L1 in the pre-monsoon to 2545 mg L1 in the post-monsoon season that is higher than the BIS (2004-05) maximum permissible limit (2000 mg L1 ). The elevated concentration of NO3 was identified at Govindpur, Hatia Bridge, Kandra, Musabani, Saraikela, Mango and Tatanagar. The higher NO3 concentration was due to the action of leaching and anthropogenic activities. At most of sampling locations, the concentration of Cd, Pb, and Ni were found higher than the prescribed limits defined by BIS and WHO. Groundwater suitability for drinking purpose was also evaluated by the synthetic pollution index (SPI), it suggests that 74%, 95%, and 21% samples fall in seriously polluted category during pre-monsoon, monsoon, and post-monsoon season, respectively. The calculated values of SAR, Na%, RSC, PI, and MH have shown that except at few locations, most of groundwater samples are suitable for irrigation purposes.
5 Kumar, P.; Singh, S. S.; Pandey, A. K.; Singh, R. M.; Srivastava, P. K.; Kumar, M.; Dubey, S. K.; Sah, U.; Nandan, R.; Singh, S. K.; Agrawal, P.; Kushwaha, A.; Rani, M.; Biswas, J. K.; Drews, M. 2021. Multi-level impacts of the COVID-19 lockdown on agricultural systems in India: the case of Uttar Pradesh. Agricultural Systems, 187:103027. (Online first) [doi: https://doi.org/10.1016/j.agsy.2020.103027]
Farming systems ; COVID-19 ; Pandemics ; Agricultural sector ; Economic impact ; Food systems ; State intervention ; Sustainable development ; Food security ; Markets ; Farmers ; Labour ; Communities ; Policies ; Case studies / India / Uttar Pradesh
(Location: IWMI HQ Call no: e-copy only Record No: H050147)
(3.65 MB)
When on March 24, 2020 the Government of India ordered a complete lockdown of the country as a response to the COVID-19 pandemic, it had serious unwanted implications for farmers and the supply chains for agricultural produce. This was magnified by the fact that, as typically in developing countries, India's economy is strongly based on farming, industrialization of its agricultural systems being only modest. This paper reports on the various consequences of the COVID-19 lockdown for farming systems in India, including the economy, taking into account the associated emergency responses of state and national governments. Combining quantitative and qualitative sources of information with a focus on the Indian state of Uttar Pradesh, including expert elicitation and a survey of farmers, the paper identifies and analyzes the different factors that contributed to the severe disruption of farming systems and the agricultural sector as a whole following the lockdown. Among other issues, our study finds that the lack of migrant labor in some regions and a surplus of workers in others greatly affected the April harvest, leading to a decline in agricultural wages in some communities and an increase in others, as well as to critical losses of produce. Moreover, the partial closure of rural markets and procurement options, combined with the insufficient supply of products, led to shortages of food supplies and dramatically increased prices, which particularly affected urban dwellers and the poor. We argue that the lessons learned from the COVID-19 crisis could fuel the development of new sustainable agro-policies and decision-making in response not only to future pandemics but also to the sustainable development of agricultural systems in India and in developing countries in general.
6 Raj, S.; Rawat, K. S.; Singh, S. K.; Mishra, A. K. 2022. Groundwater potential zones identification and validation in peninsular India. Geology, Ecology, and Landscapes, 16p. (Online first) [doi: https://doi.org/10.1080/24749508.2022.2097375]
Groundwater potential ; Mapping ; Groundwater recharge ; Watersheds ; Drainage ; Geographical information systems ; Remote sensing ; Landsat ; Land use ; Land cover ; Vegetation ; Infiltration / India / Tamil Nadu / Kanchipuram
(Location: IWMI HQ Call no: e-copy only Record No: H051340)
https://www.tandfonline.com/doi/pdf/10.1080/24749508.2022.2097375
https://vlibrary.iwmi.org/pdf/H051340.pdf
https://vlibrary.iwmi.org/pdf/H051340.pdf
(14.30 MB) (14.3 MB)
Groundwater mapping is essential for meeting the water requirement of people. Identification of groundwater potential zone was attempted for a watershed located in Kanchipuram district, Tamil Nadu, India. The Landsat 8 and Landsat 5 data were used for land use/land cover analysis. For delineating groundwater potential zone, total seven thematic layers namely drainage density, slope, geology, soil, geomorphology, rainfall, land use/land cover and observed groundwater levels were considered during the analysis. Afterwards thematic layers were converted into raster using GIS platform. Further, after assigning weights and ratings to each thematic layer, overlay analysis was applied and total five zones were delineated as very good, good, moderate, poor, and very poor. The majority of area has moderate groundwater potential zone. The potential zone map was also validated using ROC method. The map of 2005 shows a highest accuracy compared to rest year maps.
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