Applied Water Science (Oct 2018)
Predilection of sustainable recharge structures using morphometric parameters and decision making model in the Vaniyar sub basin, South India
Abstract
Abstract The morphometric parameters are depicting the hydrological reaction through geographic information systems (GIS) and geospatial techniques used for water conservation. In this area, drainage system shows a dendritic pattern occasion where the most outrageous number of streams found in the primary request and the stream arrange extended by receding in stream number. The preference criteria were chosen in the pappiredipatti watershed compared to other watersheds in the sub basin based on slope condition, rainfall, and weathered zone thickness. The highest mean bifurcation ratio is 4.9 at yercaud watershed whereas the lowest mean bifurcation ration is 1.8 in kadattur watersheds. The mean bifurcation proportion was 3.125 which demonstrate that the discharge design is influenced by auxiliary aggravations. The Elongation ratio lowest in 0.53 at kadattur and highest at KRW is 0.8, form factor esteems were 0.67 and 0.1.92 which specify stretched state of the bowl having a compliment high point of the stream for longer spans. Flowing streams of the prolonged basin are less demanding to oversee for accommodating to deciding the impact of the catchment territory on hydrological valuation. In the pappiredipatti watershed was chosen preference criteria of recharge structures, number of structures 8, 12, and 30 of check dams were built on 1st, 2nd, 3rd order stream individually. Two permeation lakes were developed nearer to 3rd order stream. Artificial recharge structures in 1st order are lower than in 2nd order, according to the morphometric investigation, the 2nd and 3rd order stream are described by high penetrable, high infiltration limit and low help, which is conducive for the recharge. The accompanying observations made while settling on the sort and plan of maintainability structures for the proper location.
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