A watershed is a most suitable geomorphologic unit for organization of all kinds of human activities and natural processes continuing within it. Knowledge of drainage basin characteristics becomes an important pre requisite to evaluate the watershed hydrology. The amount of water reaching a stream system is dependent on the morphometry of the watershed, total precipitation, losses due to evapotranspiration and absorption by soil and vegetation. Evaluation of morphometric parameters requires preparation of drainage map, contour map, ordering of streams, measurement of catchment area, perimeter, relative relief, relief ratio, length of streams, drainage density, drainage frequency, bifurcation ratio, texture ratio which further helps in understanding the watershed environment. The present study involves the use of Remote Sensing and Geographic information System (GIS) analysis technique to evaluate the morphometric characteristics of Umthana watershed of Meghalaya with an aim to understand the parameters for sustainable development of the watershed environment.
Volume 11 | 08-Special Issue
Pages: 2645-2655