The researchers studied the Jatiroke catchment area to understand its physical characteristics. They found that the area is 5695.80 hectares in size, with a climate classification of type C and type C3. The shape of the area resembles a bird feather, affecting water flow into the river. The land cover is mainly forest mixed, covering 28% of the area. Andosol and Kambisol soil types are present, with Kambisol dominating at 57%. The slope consists of moderately steep and steep classes, making up 27.75% and 23.29% of the area, respectively.