Abstract
The importance of flowing water in the ecosystem was realized when the issues of dying rivers and the imminent threat to freshwater supply came to fore. Subsequently, there were efforts to understand the limit of maximum permissible withdrawal of water from a river so that its hydro-ecological functions are not drastically hampered. The term ecological flow means not only the quantity but also the quality of flowing water and also its cultural and aesthetic value. It identifies the required quantity, quality and distribution of flow patterns from the source to mouth of a river, preserving the life in and around the channels. The drastic reduction in flow in most of the river has the ecological cost. The already identifiable indicators of the ecological damage are longitudinal disconnectivity of the flowing channel, the falling level of the groundwater table and the loss of biodiversity. The greater common good of the human society does not lie in the abuse of the rivers; the future of civilization depends on fixing critical limits for the exploitation of water sources and allowing the rivers to flow.
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References
Amarasinghe UA, Shah T, Turral H, Anand BK (2005) India’s water future to 2025–2050: business-as-usual scenario and deviations. Research Report 123, International Water Management Institute
Arthington AH, Pusey BJ (2003) Flow restoration and protection in Australian rivers. River Res Appl 19(5–6):377–395
Bandyopadhyay J (2011) Deciphering environmental flows. Seminar (October Issue) 626:50–53
Closs G, Downes B, Boulton A (2004) Freshwater ecology. Blackwell Sc Ltd.
Collocott Thomas Charles, Dobson Alan Binaloss (1974) Chambers dictionary of science and technology: L-Z, vol 2. W. and R, Chambers
Dutta Ritwick (2009) The unquiet river—an overview of select decisions of the courts on the River Yamuna. PEACE Institute Charitable Trust, Delhi
Dyson M, Bergkemp G, Scanlon J (eds) (2003) The essentials of environmental flows. In: Water and nature initiative, international union for conservation of nature and natural resources. http://moderncms.ecosystemmarketplace.com/repository/moderncms_documents/iucn_the-essentials-of-environmental-flows.pdf. Accessed 30 Dec 2011
Gleick Peter H (1993) Water in crisis: a guide to world’s fresh water resources. OUP, Oxford
Gordon ND, McMahon TA, Finlayson BL, Gippel CJ, Nathan RJ (2004) Stream hydrology: an introduction for ecologists, 2nd edn. Wiley, Chichester
Homa ES, Vogel RM, Smith MP, Apse CD, Huber-Lee A, Sieber J (2005) An optimization approach for balancing human and ecological flow needs. In: Proceedings of the EWRI. World Water and Environmental Resources Congress, ASCE, Anchorage, Alaska
Hughes DA, Münster F (2000) Hydrological information and techniques to support the determination of the water quantity component of the ecological reserve. Water Res Comm Report TT 137/00, 91 p. Pretoria, South Africa
Hughes DA, Hannart P (2003) A desktop model used to provide an initial estimate of the ecological in stream flow requirements of rivers in South Africa. J Hydrol 270:167–181
Iyer RR (2005) the notion of environmental flows: a caution. In: NIE/IWMI workshop on environmental flows, 23–24 March. New Delhi
Jones G, Hillman T, Kingsford R, McMahon T, Walker K, Arthington A, Whittington J, Cartwright S (2002) Independent report of the expert reference panel on environmental flows and water quality requirements for the River Murray system. In: Report prepared for the environmental flows and water quality objectives for the River Murray project board. URL: http://thelivingmurray2.mdbc.gov.au/__data/page/1482/ERPreport1.pdf. Accessed 30 Dec 2011
Jowett IG (1997) Instream flow methods: a comparison of approaches. Regulated Rivers Res Manage 13:115–127
Karr JR, Dudley DR (1981) Ecological perspectives on water quality goals. Environ Manage 5:55–68
Land and Water Australia, Hamstead M (2007) Defining ‘environmental flows’, fact sheet for land and water Australia. http://lwa.gov.au/files/products/environmental-water-allocation/pf071349/pf071349.pdf
McLusky DS, Elliot M (2004) The estuarine ecology: ecology, threats and management. Oxford University Press, UK
Minshall GW (1984) Aquatic insect-substratum relationships. In: Resh VH, Rosenberg DM (eds) The ecology of aquatic insects. Praeger Publishers, New York, pp 358–400
N.C. Environmental Review Commission (2009) Report of the water allocation study. North Caroline Environmental Review Commission, North Carolina, USA. URL:http://sogweb.sog.unc.edu/Water/images/4/40/2008NCERCWaterAllocationStudyFinalReport.pdf. Accessed 03 Jan 2012
NCIWRD (1999) Integrated water resource development—a plan for action. National Council of Integrated Water Resource Development, Government of India, New Delhi
Petts GE (1996) Water allocation to protect river ecosystems. Regulated Rivers Res Manage 12:353–365
Silk N, McDonald J, Wigington R (2000) Turning in stream flow water rights upside down. Rivers 7(4):298–313
Sinha RK, Prasad K (2005, Mar) Environmental flows vis-Ã -vis biodiversity: the current scenario in the River Ganga. Abstracts of the NIE/IWMI workshop on environmental flows. New Delhi, p. 13
Smakhtin VU, Revenga C, Döll P (2004) Taking into account environmental water requirements in global scale water resources assessments. Research report of the CGIAR comprehensive assessment programme of water use in agriculture. International Water Management Institute, Colombo, Sri Lanka, 24 p (IWMI Comprehensive Assessment Research Report 2)
Smakhtin V, Anputhas M (2006) Environmental flow requirements of Indian River Basins. Re-search Report No. 107. International Water Management Institute, Colombo
Smakhtin V et al (2007) Developing procedures for assessment of ecological status of Indian River Basins in the context of environmental water requirements. Research Report 114. International Water management Institute
Statzner B, Gore JA, Resh VH (1988) Hydraulic stream ecology: observed patterns and potential applications. J North Am Benthol Soc 7:307–360
Tare V et al (2015) Ganga River Basin management plan-2015. http://52.7.188.233/sites/default/files/GRBMP-MPD_March_2015.pdf
Ward JV, Stanford JA (1983) The intermediate-disturbance hypothesis: an explanation for biotic diversity patters in lotic ecosystems. In: Fotaine TD III, Bartell SM (eds) Dynamics of lotic ecosystems. Ann Arbor Press, Ann Arbor, Michigan, pp 347–356
WWF India (2012) Report on assessment of environmental flows for the Upper Ganga Basin. World Wildlife Fund India, New Delhi. http://awsassets.wwfindia.org/downloads/wwf_e_flows_report.pdf
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Rudra, K. (2018). The Concept of Ecological Flow. In: Rivers of the Ganga-Brahmaputra-Meghna Delta. Geography of the Physical Environment. Springer, Cham. https://doi.org/10.1007/978-3-319-76544-0_12
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