Your search found 4 records
1 Reddy, T. N.; Raj, P. 1997. Hydrogeological conditions and optimum well discharges in granitic terrain in parts of Nalgonda District, Andhra Pradesh, India. Journal Geological Society of India, 49:61-74.
Groundwater ; Water quality ; Tube wells ; Discharges ; Hydrogeology ; Simulation models / India / Andhra Pradesh / Nalgonda District
(Location: IWMI-HQ Call no: P 7686 Record No: H039488)
2 Bendapudi, R.; Shiferaw, B.; Wani, S. P.; Nageswara Rao, G. D.; Sreedevi, T. K. 2007. Socioeconomic profiles, production and resource use patterns in selected semi-arid Indian watershed villages. Patancheru, Andhra Pradesh, India: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT). 86p. (Global Theme on Agroecosystems Report 34)
Watershed management ; Villages ; Demography ; Social aspects ; Land ownership ; Crop production ; Fertilizers ; Livestock ; Households ; Income ; Institutions / India / Andhra Pradesh / Mahabubnagar District / Nalgonda District / Kurnool District
(Location: IWMI HQ Call no: 333.91 G635 BEN Record No: H041331)
The collaborative watershed research and development project between ICRISAT and the Andhra Pradesh Rural Livelihoods Programme (APRLP) was initiated with an overall objective of alleviating poverty through watershed-based interventions that enhance agricultural productivity and the sustainability of rural livelihoods. The initial phase of the project focused on participatory technology evaluation in selected watersheds for development of best practices and upscalable implementation models. Characterization of the biophysical and socioeconomic systems is an important aspect of this work. A detailed baseline socioeconomic farm household survey was conducted in 2003 in selected watershed villages of Mahabubnagar, Nalgonda and Kurnool districts. This report analyzes the socioeconomic conditions and resource endowment patterns of the watershed farmers. The report provides a snapshot of the structure of production in the villages, constraints and potential for increased productivity, social and political networks, and the distribution of assets across social groups. The net household incomes from diverse sources including crop, livestock and off-farm and their contribution to total household income in the selected villages are presented. The report also analyzes the income inequalities and the effect of different income sources on household income inequalities in the watershed villages using inequality decomposition techniques.
3 Brindha, Karthikeyan; Jagadeshan, G.; Kalpana, L.; Elango, L. 2016. Fluoride in weathered rock aquifers of southern India: managed aquifer recharge for mitigation. Environmental Science and Pollution Research, 23(9):8302-8316. [doi: https://doi.org/10.1007/s11356-016-6069-7]
Chemical composition ; Fluorides ; Aquifers ; Recharge ; Surface water ; Groundwater ; Water table ; Water quality ; River basins ; Semiarid zones ; Rain ; Wells ; Dams ; Case studies / India / Tamil Nadu / Nalgonda District / Telangana / Pambar River Basin / Vaniyar River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H047462)
(3.43 MB)
Climatic condition, geology, and geochemical processes in an area play a major role on groundwater quality. Impact of these on the fluoride content of groundwater was studied in three regions-part of Nalgonda district in Telangana, Pambar River basin, and Vaniyar River basin in Tamil Nadu, southern India, which experience semi-arid climate and are predominantly made of Precambrian rocks. High concentration of fluoride in groundwater above 4 mg/l was recorded. Human exposure dose for fluoride through groundwater was higher in Nalgonda than the other areas. With evaporation and rainfall being one of the major contributors for high fluoride apart from the weathering of fluoride rich minerals from rocks, the effect of increase in groundwater level on fluoride concentration was studied. This study reveals that groundwater in shallow environment of all three regions shows dilution effect due to rainfall recharge. Suitable managed aquifer recharge (MAR) methods can be adopted to dilute the fluoride rich groundwater in such regions which is explained with two case studies. However, in deep groundwater, increase in fluoride concentration with increase in groundwater level due to leaching of fluoride rich salts from the unsaturated zone was observed. Occurrence of fluoride above 1.5 mg/l was more in areas with deeper groundwater environment. Hence, practicing MAR in these regions will increase the fluoride content in groundwater and so physica or chemical treatment has to be adopted. This study brought out the fact that MAR cannot be practiced in all regions for dilution of ions in groundwater and that it is essential to analyze the fluctuation in groundwater level and the fluoride content before suggesting it as a suitable solution. Also, this study emphasizes that long-term monitoring of these factors is an important criterion for choosing the recharge areas.
4 Rajesh, R.; Brindha, Karthikeyan; Elango, L. 2015. Groundwater quality and its hydrochemical characteristics in a shallow weathered rock aquifer of southern India. Water Quality, Exposure and Health, 7(4):515-524. [doi: https://doi.org/10.1007/s12403-015-0166-6]
Groundwater irrigation ; Irrigation water ; Water quality ; Hydrology ; Chemical analysis ; Geology ; Surface water ; Aquifers ; Domestic consumption ; Domestic water ; Drinking water ; Elements ; Salinity ; Alkalinity ; Wells / India / Telangana / Nalgonda District
(Location: IWMI HQ Call no: e-copy only Record No: H047463)
(2.08 MB)
Suitability of groundwater for domestic and irrigation purposes as well as its hydrochemical characteristics was estimated in a part of Nalgonda district, Telangana state in southern India. Water samples were collected from 45 wells once every 2 months from March 2008 to January 2010. EC and pH were measured in situ while concentrations of calcium, magnesium, sodium, potassium, sulphate and chloride in groundwater were analysed using ion chromatograph. Carbonate and bicarbonate concentration were determined by acid base titration. General order of dominance of cations in the groundwater of this study area is Na?[Ca2?[Mg2?[ K? while that for anions is HCO3 -[Cl-[SO4-2. Ca–HCO3, Na–Cl, mixed Ca–Na–HCO3 and mixed Ca–Mg–Cl types of groundwater were dominant in this area. Groundwater is generally fresh with medium to high salinity and low alkalinity. Chloride and bicarbonate concentrations were present within the permissible limits for drinking whereas, some samples exceed the permissible limits of the Bureau of Indian Standards for pH, TDS, TH,sodium, calcium, magnesium and sulphate. Potassium exceeded the maximum permissible limits for drinking proposed by World Health Organisation. Sodium adsorption ratio, sodium percentage, residual sodium carbonate and permeability index indicates that the groundwater quality was suitable for irrigation in most parts of the study area.
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