KARAKTERISTIK HIDROLOGI BERDASARKAN PARAMETER MORFOMETRI DAS DI KAWASAN TAMAN NASIONAL MERU BETIRI

Abstract

Hydrological characteristics of a stream are influenced by both the land uses and the natural character of watershed called morphometry. The morphometric characteristics and the manageable factors will Influence the hydrological parameters such as evapotranspiration, soil infiltration and stream flow. The study aims to evaluate the hydrological characteristics based on morphometric parameters in an area of Meru Betiri National Park (TNMB). The results showed that according to the delineation on topographical map (scale 200,000), the TNMB area consists of 16 catchments and micro-catchments with the area of approx. five to 130 km2. About eight of them are flowing to the south sea of Java. According to the morphometric characteristics, most of catchments have radial pattern, oval shape, and perennial flow especially for the bigger streams (CA= five km2 up). The moderate drainage density and the bifurcation ratio (Rb) with range of 3-5 caused un-fluctuated flood flow especially at the bigger streams. Management efforts should to be done in order to maintain and increase both continuity and quality of stream from TNMB area.