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Infiltration modeling in submergence area of a water harvesting structure: a case study

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Title Infiltration modeling in submergence area of a water harvesting structure: a case study
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Creator Ojha, S.
Deepesh Machiwal
Purohit, R.C.
 
Subject Double ring infiltrometer
Green-Ampt model
Infiltration characteristics
Infiltration modeling
Kostiakov model
Water harvesting structure
 
Description Not Available
The knowledge of infiltration characteristics of a soil is the basic information required for designing an efficient irrigation system and also to show efficacy of a water harvesting structure in groundwater recharging. The objective of the present study was to determine infiltration characteristics in submergence area of a water harvesting structure in Khamnor block of Rajsamand, Rajasthan. A total of ten infiltration tests were conducted using double-ring infiltrometers. The observed infiltration data were fitted to three selected infiltration models namely Kostiakov, Kostiakov-Lewis and Green-Ampt models. Selection of the best-fit infiltration model was made based on the goodness-of-fit criteria, i.e., coefficient of determination. The initial infiltration rate varied from 1.2 to 12 cm hr−1 and the basic infiltration rate ranged between 0.06 and 1.44 cm hr −1. The mean basic infiltration rate in the submergence demonstrated that the harvesting rainwater can effectively be recharged at a mean rate of 1 m day −1. The Kostiakov model was found to be the best-fit infiltration model with the highest R2 values.
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Date 2019-07-04T11:08:48Z
2019-07-04T11:08:48Z
2013-04-26
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/21153
 
Language English
 
Relation Not Available;
 
Publisher Indian Society of Agricultural Engineers, New Delhi