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Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 9, Issue 1 (2020)

Hydrological evaluation of Koraiyar watershed by morphometric analysis

Author(s):

G Thiyagarajan, A Valliammai, A Raviraj, Balaji Kannan and S Panneerselvam

Abstract:
Morphometric analysis was conducted in Koraiyar watershed which lies in Walyar sub basin of Parambikulam Aliyar Project (PAP). It is in the over exploited groundwater extraction category. The quantitative morphometric analysis was carried out in 24 micro-watersheds of Koraiyar watershed using GIS technique for determining the linear aspects such as stream order, bifurcation ratio, stream length and aerialaspects such as drainage density, stream frequency, form factor, circulatory ratio, and elongationratio. Prioritization based on different morphometric parameters was done. The morphometric analysis of different micro-watersheds showed their relative characteristics with respect to hydrologic response of the watershed. Results of morphometric analysis show that micro-watersheds 5, 7, 13, 19, 21 and 23 are possibly having high erosion problems. Hence, suitablesoil erosion control measures are required in these micro watersheds to preserve the land from further erosion.

Pages: 1521-1525  |  516 Views  153 Downloads


Journal of Pharmacognosy and Phytochemistry Journal of Pharmacognosy and Phytochemistry
How to cite this article:
G Thiyagarajan, A Valliammai, A Raviraj, Balaji Kannan and S Panneerselvam. Hydrological evaluation of Koraiyar watershed by morphometric analysis. J Pharmacogn Phytochem 2020;9(1):1521-1525.

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