| dc.description.abstract | Ngaglik sub-district is a buffer area for the development (agglomeration) of Yogyakarta city to the north and is a water catchment area according to Spatial Plan (RTRW). However, in the study sites there was an increase in the number of puddle locations with varying inundation and puddle height. In addition, due to the high rainfall intensity and due to reduced drainage channel capacity due to sediment deposition, so it does not work again in accordance with the capacity of the initial drainage plan. From the problems that exist in Ngaglik sub-district, it will be done inventasivasi and evaluation of eco-drainage that exist in the research location. H acyl in this research use rainfall analysis with 3 method, that is Gumbel Method, Log Pearson Method III and Normal Log Method of Rain Distribution Calculation done using Hasper-Weduwen Method. Calculation of concentration time with Kirpich method. Mononobe method is used to calculate hourly rainfall and Rational Method to calculate runoff discharge. The results of theevaluation show that overall of each absorption wells can absorb water into soil by 714,59 m 3 / hri. Denol run off discharge of 349 m 3 / hri. Seen water absorption from the absorption well is greater than runoff discharge, thus it can be concluded that this area has a high water absorption capacity that can prevent the occurrence of water puddles on the surface . | en_US |
