Hydrogeological typologies of the Indo-Gangetic basin alluvial aquifer, South Asia.

Autor: Bonsor HC; British Geological Survey, Lyell Centre, Research Avenue South, Riccarton, Edinburgh, EH14 4AS UK., MacDonald AM; British Geological Survey, Lyell Centre, Research Avenue South, Riccarton, Edinburgh, EH14 4AS UK., Ahmed KM; 2Department of Geology, University of Dhaka, Dhaka, 1000 Bangladesh., Burgess WG; 3Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT UK., Basharat M; 4International Waterlogging and Salinity Research Institute (IWASRI), Water and Power Development Authority, Lahore, Pakistan., Calow RC; 5Overseas Development Institute, 203 Blackfriars Road, London, SE1 8NJ UK., Dixit A; Institute for Social and Environmental Transition-Nepal, Manasi Marga, Kathmandu Municipality-4, Chandol, Kathmandu, Nepal., Foster SSD; Global Water Partnership, 25 Osberton Road, Summertown, Oxford, UK OX2 7NU UK., Gopal K; 8National Institute of Hydrology, Roorkee, 247667 Uttarakhand India., Lapworth DJ; 9British Geological Survey, MacLean Building, Crowmarsh Gifford, Wallingford, Oxfordshire OX10 8BB UK., Moench M; 10Institute for Social and Environmental Transition-International, 948 North Street 7, Boulder, Colorado 80304 USA., Mukherjee A; 11Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur, India., Rao MS; 8National Institute of Hydrology, Roorkee, 247667 Uttarakhand India., Shamsudduha M; 12Institute for Risk and Disaster Reduction, University College London, Gower Street, London, WC1E 6BT UK., Smith L; Filters for Families, 2844 Depew St., Wheat Ridge, Colorado 80214 USA., Taylor RG; 14Department of Geography, University College London, Gower Street, London, WC1E 6BT UK., Tucker J; 5Overseas Development Institute, 203 Blackfriars Road, London, SE1 8NJ UK., van Steenbergen F; MetaMeta Research, Postelstraat 2, 5211 EA Hertogenbosch, The Netherlands., Yadav SK; Institute for Social and Environmental Transition-Nepal, Manasi Marga, Kathmandu Municipality-4, Chandol, Kathmandu, Nepal., Zahid A; Ground Water Hydrology, Bangladesh Water Development Board, 72 Green Road, Dhaka, Bangladesh.
Jazyk: angličtina
Zdroj: Hydrogeology journal [Hydrogeol J] 2017; Vol. 25 (5), pp. 1377-1406. Date of Electronic Publication: 2017 Feb 23.
DOI: 10.1007/s10040-017-1550-z
Abstrakt: The Indo-Gangetic aquifer is one of the world's most important transboundary water resources, and the most heavily exploited aquifer in the world. To better understand the aquifer system, typologies have been characterized for the aquifer, which integrate existing datasets across the Indo-Gangetic catchment basin at a transboundary scale for the first time, and provide an alternative conceptualization of this aquifer system. Traditionally considered and mapped as a single homogenous aquifer of comparable aquifer properties and groundwater resource at a transboundary scale, the typologies illuminate significant spatial differences in recharge, permeability, storage, and groundwater chemistry across the aquifer system at this transboundary scale. These changes are shown to be systematic, concurrent with large-scale changes in sedimentology of the Pleistocene and Holocene alluvial aquifer, climate, and recent irrigation practices. Seven typologies of the aquifer are presented, each having a distinct set of challenges and opportunities for groundwater development and a different resilience to abstraction and climate change. The seven typologies are: (1) the piedmont margin, (2) the Upper Indus and Upper-Mid Ganges, (3) the Lower Ganges and Mid Brahmaputra, (4) the fluvially influenced deltaic area of the Bengal Basin, (5) the Middle Indus and Upper Ganges, (6) the Lower Indus, and (7) the marine-influenced deltaic areas.
(© The Author(s) 2017.)
Databáze: MEDLINE
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