Authors : Dr. Ir. Arqam Laya

Volume/Issue : Volume 9 - 2024, Issue 5 - May

Google Scholar : https://tinyurl.com/ywwuck86

Scribd : https://tinyurl.com/2p8aks6k

DOI : https://doi.org/10.38124/ijisrt/IJISRT24MAY1469

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Abstract : Infiltration rate is a measurement of the physical properties of soil. The classification of infiltration rates according to ILRI (1974) based on the results of changes by Rickard and Cossens (1965) is an important characteristic to indicate land drainage conditions. The aim of this research is to determine the classification of infiltration and its extent. The research method uses a grid system by dividing the city area into 250 m x 250 m consisting of 108 grids with 46 grids representing the lowlands. The infiltration rate in Gorontalo City as a whole is classified as very slow 2189.44Ha or 32.81%, the meaning of this percentage shows that an infiltration rate of less than 2.5 cm/hour occurs in Gorontalo City. For the infiltration rate with a slow classification, the speed is 2.5– 15 cm/hour, covering an area of 2615.38 Ha or 39.17%.

Keywords : Classification, Infiltration, Extent and Flooding.

References :

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3. ILRI, 1974, Drainage Principles and Applications, ILRI, Wagenigen, (The Netherlands).
4. Meijrink, AMJ, 1982, Hydrogeomorphology, Lecture Notes, Department of Geomorphology, ITC, Enshede, (The Netherlands).