Geospatial Modelling Geomorphic Typologies of the Binahaan River, Philippines

Certain characteristics defining fluvial geomorphology have been linked with a wide range of ecological events that generate effects on the vital components river systems. The Binahaan River in Leyte, Philippines, is important for irrigation and potable water distribution but little research has conducted about it. Our objective was to baseline data by developing model showing geomorphic typologies its 4.5 km portion. Using Rosgen’s classification, we identified 12 following key parameters: entrenchment ratio, width-to-depth sinuosity, slope, channel material. Typology B5c — denoting moderate values sinuosity ratios, low slope sand as material dominated stretch. Data show while some parts are covered silt/clay, occupied 57% typologies. Furthermore, many stretch were moderately entrenched had high ratios. Sand mining generally disturbed caused lower recovery potential affected areas than rest will be significant future focusing biodiversity relationship river’s geomorphology.