Abstract
Only 3% of the total water on Earth is fresh water, out of which underground water constitute 29% and less than 1% is in the form of lakes and rivers on the Earth’s surface. The total freshwater resources in the world are estimated to be in the order of 43,750 km3 year−1, distributed throughout the world. In the coastal areas, fresh groundwater is present as a lens over the sea water. Due to increasing human population, urbanization and intensification of agriculture freshwater demand have been increasing. At the same time industrial and domestic use is growing relative to that for agriculture. Global assessment points to the fact that the demand for water is influenced by population growth, industrial development, and food production besides climate change. Total global freshwater withdrawal is estimated at 3800 km3 in which 70% for irrigation, with huge variations across and within countries. Since the balance between water demand and water availability has reached critical level in many regions of the world and increased demand for water and food production is likely in the future, a sustainable approach to water resource management has become imperative. This chapter highlights various sources, demand, and supply and management of fresh water with special reference to coastal freshwater resources.
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References
Alcamo J, Henrichs T, Rosch T (2000) World water in 2025: global modeling and scenario analysis for the world commission on water for the 21st century, report A0002. University of Kassel, Kassel
Alexandratos N, Bruinsma J (2012) World agriculture towards 2030/2050: the 2012 revision, ESA Working Paper No. 12-03. FAO, Rome
Bates BC, Kundzewicz ZW, Wu S, Palutikof JP (2008) Climate change and water. IPCC Secretariat, Geneva
Borras SM, Hall R, Scoones I, White B, Wolford W (2011) Towards a better understanding of global land grabbing: an editorial introduction. J Peasant Stud 38:209–216
Collin ML, Melloul AJ (2012) Land-use planning guidelines for optimal coastal environmental management. J Environ Prot 3:485–501
Doll P, Siebert S (2001) Global modeling of irrigation water requirement. University of Kassel, Kassel
Falkenmark M (1986) Freshwater—time for a modified approach. Ambio 15:192–200
Falkenmark M, Rockstrom J (2006) The new blue and green water paradigm, breaking new ground for water resources planning and management. J Water Res Plan Manag 132:129–132
FAO (1996) Les Ressources en Eau, FAO/BRGM, Food and Agriculture Organization of the United Nations, Rome
FAO (2003) Review of world water resources by country, Water Reports 23. Food and Agriculture Organization of the United Nations, Rome. http://www.fao.org/docrep/005/y4473e/y4473e00.htm
FAO (2011) Climate change, water and food security, FAO Water Reports No. 36. FAO, Rome
FAO (2012) AQUASTAT Database, Food and Agriculture Organization of the United Nations. http://www.fao.org/nr/aquastat. Accessed 20 June 2017
Fischer G, Tubiello FN, van Velthuizen H, Wiberg DA (2007) Climate change impacts on irrigation water requirements: effects of mitigation, 1990–2080. Technol Forecast Soc 74:1083–1107
Foster SSD (1984) African groundwater development: the challenges for hydrologic science. In: Walling DE, Foster SSD, Wurzel P (eds) Challenges in African hydrology and water resources, IAHS Publications 144. IAHS Press, Wallingford, pp 3–12
Hornbogen M, Schultz GA (1998) Water: a looming crisis? UNESCO, Paris, pp 357–362
Houghton JT, Jenkins GJ, Ephraums JJ (1990) Climate change—IPCC Scientific Assessment, Inter Governmental Panel on Climate Change. University Press, Cambridge
IPCC (2007) Climate change : synthesis report contribution of working groups I, II and III to the fourth assessment report of the intergovernmental panel on climate change. Geneva, p 104
IWMI (2007) Water for food, water for life: a comprehensive assessment of water management in agriculture. Earthscan/International Water Management Institute, London/Colombo. www.earthscan.co.uk
Mall RK, Gupta A, Singh R, Singh RS, Rathore LS (2006) Water resources and climate change: an Indian perspective. Curr Sci 90(12):1610–1626
Mancosu N, Snyder RL, Kyriakakis G, Spano D (2015) Water scarcity and future challenges for food production. Water 7:975–992. https://doi.org/10.3390/w7030975
Mekonnen MM, Hoekstra AY (2011) National water footprint accounts: the green, blue and gray water footprint of production and consumption, Value of Water Research Report Series No. 50. UNESCO-IHE, Delft
MoWR (2003) Vision for integrated water resources development and management. Ministry of Water Resources, Govt of India, New Delhi, p 20
NCIWRD (1999) Report of the National Commission for Integrated Water Resources Development, Ministry of Water Resources, vol 1, p 542
Rulli MC, Saviori A, D’Odorico P (2013) Global land and water grabbing. Proc Natl Acad Sci U S A 110:892–897
Shiklomanov IA (2000) World water resources and water use: present assessment and outlook for 2005. In: Rijberman F (ed) World water scenarios analysis. World Water Vision
Siebert S, Henrich V, Frenken K, Burke, J (2013) Update of the global map of irrigation areas to version 5. University of Bonn/FAO, Bonn/Rome, p 178. https://doi.org/10.13140/2.1.2660.6728
Sillmann J, Roeckner E (2008) Indices for extreme events in projections of anthropogenic climate change. Clim Chang 86:83–104
Wallace JS (2000) Increasing agricultural water use efficiency to meet future food production. Agric Ecosyst Environ 82:105–119
Wickramaratne U, Weragoda SK, Dharmagunewardhane HA (2006) Importance of designing artificial groundwater recharging system by rainwater in coastal water supply schemes: a case study from the eastern coastal zone of Sri Lanka. national seminar on rainwater harvesting and water management, 11–12 November 2006, Nagpur, pp 215–225
World Resources Institute (2000) World resources 2000–2001. Washington, DC, 389 pp
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Ayyam, V., Palanivel, S., Chandrakasan, S. (2019). Water Resources and the Changing Needs. In: Coastal Ecosystems of the Tropics - Adaptive Management. Springer, Singapore. https://doi.org/10.1007/978-981-13-8926-9_8
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