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
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 :
- Asdak, C., 2007, Hydrology and Watershed Management, Gadjah Mada Press, Yogyakarta.
- Department of Public Works, 1987, Standard Method for Calculating Flood Discharge, Department of Public Works, LPMB Foundation, Bandung
- ILRI, 1974, Drainage Principles and Applications, ILRI, Wagenigen, (The Netherlands).
- Meijrink, AMJ, 1982, Hydrogeomorphology, Lecture Notes, Department of Geomorphology, ITC, Enshede, (The Netherlands).
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.
