Abstract
Sustainability of watershed development plan is assessed through the quantification of thethree major sub-components of Water Balance, namelySurface Runoff (SR), Ground Water Recharge (GWR) andEvapotranspiration (ET) for 71 micro-watersheds of Kharod watershed (1100 km2 area) located in Western India. Annual estimates at micro-watershed level are carried out for two scenarios: A) The current water resources and land use/land cover scenario and B) Envisaged changed water resources and land use/land cover scenario after implementing all prescriptions for micro-watershed development. Finally water balance components level analysis and comparison was done to see the impact and assess the sustainability of envisaged watershed development scenario. It is estimated that there is a decrease of 40.2 mm in surface runoff component, increase of approx. 4 mm in groundwater recharge, increase of 102.3 mm in actual evapotranspiration for post-developmental scenario on annual basis. The computation of actual evapotranspiration (ETa) showed that there is net increase in the ETa after the post-development scenario. Also the surface water storage has increased from 21.2 mm to 65.3 mm. Overall there is 164.9 mm of available water balance after implementation of developmental activities which reflects the sustainability of the proposed development plans.
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Sharma, A.K., Thakur, P.K. Quantitative assessment of sustainability of proposed watershed development plans for kharod watershed, western India. J Indian Soc Remote Sens 35, 231–241 (2007). https://doi.org/10.1007/BF03013491
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DOI: https://doi.org/10.1007/BF03013491