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Vol. 10, Special Issue 11 (2021)

Morphometric analysis of different irrigation drainage parameters of a Pravara river basin, Maharashtra, India

Author(s):
Shubham R Supekar, Dr. Mohd. Aftab Alam, Tushar Rathod, Dr. Vikram Singh and Akshay V Chavan
Abstract:
The described study of the Morphometric analysis based on several drainage parameters, by which the watershed streams have been classified up to fifth order streams of Pravara River Basin, Maharashtra using GIS and Remote Sensing technique. Topographical maps and ASTER DEM data at 30m spatial resolution have been used for the analysis. Stream networks, different linear, areal, and relief aspects of the basin were analyzed using QGIS 3.16 software. The linear aspects of watershed was carried out i.e., Stream order (625), Bifurcation ratio (6.24), Stream length (1873Km) and aerial aspects such as Drainage density (Dd = 0.71), Stream frequency ( Fs=0.24), Form factor ( Ff = 0.10), Circulatory ratio ( Rc = 0.13) and Elongation ratio (Re=0.36) has been carried out on the basis of soil erosion. The study of the data revealed that the total no of streams were 625 in that 475.00 in first order, 117.00 in second, 30.00 in third, 2.0 in fourth and 1.0 in fifth simultaneously. The low Bifurcation ratio ( Rb ) value reveals that a lower peak flow would result from the watershed and it can be more risk of flooding. The low Drainage density (Dd) value indicates that the basin has moderately low permeable soil (Black soil) and sparse vegetative cover. The low Circulatory ratio ( Rc ) value also indicates as the watershed basin is almost elongated in shape, it has a high discharge rate of runoff and poorly permeable soil condition.
As the both low Drainage density ( Dd ) and Circulatory ratio ( Rc ) values indicating low permeable sub soil conditions, accompanied with the low Bifurcation ratio ( Rb ) values and all the low values of Elongation ratio ( Re ), Form factor ( Ff ), and Stream frequency ( Fs ) indicating a flatter peak of flow for a longer duration thus the basin is not well capable of absorbing water into the soil and less groundwater recharging whereas more risk of flooding. If such floods would be emerged, those could be managed easily from this type of elongated watershed basins than from circular basins by adopting suitable precautionary measures.
Pages: 2834-2840  |  292 Views  107 Downloads
How to cite this article:
Shubham R Supekar, Dr. Mohd. Aftab Alam, Tushar Rathod, Dr. Vikram Singh and Akshay V Chavan. Morphometric analysis of different irrigation drainage parameters of a Pravara river basin, Maharashtra, India. The Pharma Innovation Journal. 2021; 10(11S): 2834-2840.
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