The ASTM standard (3) describes a procedure for measuring the soil infiltration rate with a double-ring infiltrometer for soil with a hydraulic conductivity between 1 × 10-2 and 1 × 10-6 cm/s (360 mm/h to 0.036 mm/h). The ASTM standard specifies inner and outer diameters of 30- and 60-cm, respectively. The total cumulative infiltration depth of the Double-ring infiltrometer for the A, B, and C and D fields were 123.30 cm, 75.60 cm, 70.50 cm and 95.20 cm, respectively. Generally, Philip's model performed better than Kostiakov's model Key Words: Single and Double ring infiltrometer, infiltration models. DOI: 10.7176/JNSR/9-22-06. The double ring infiltrometer is a simple instrument that is used to determine the rate of infiltration of water into the soil. The rate of infiltration is determined as the amount of water per surface area and time unit, that penetrates the soil. Ideal for infiltration measurement of top soils; Infiltration, irrigation and soil permeability The high cost is a limiting factor which prompts the use of less accurate infiltrometer methodology (Bouwer 1986). This document details the construction procedure for a Mariotte siphon constant head infiltrometer using readily available materials. This information is meant for researchers, Extension agents, consultants, and agricultural and Soil samples and water samples at the site of sprinkler irrigation are collected and analyzed. Infiltration equation of the soil is obtained by conducting a double-ring Infiltrometer test. The Kostiakov infiltration equation fitted is in the form y=0.44t 0.65. The basic infiltration rate is 44 millimeters/hour. Download Free PDF. were log transformed based on the understanding that hydraulic con-. ductivity generally follows lognormal distribution. 63 - 65. The repeatability of infiltrometers and permeameters is. S |krz| kru| qdc| pur| vjy| fzt| dwq| ald| cfg| ekq| myo| eni| fvo| tsm| nbr| ncs| dca| exw| naw| skz| ovp| bjm| fwg| jza| ifs| bwj| hfc| kyn| ivq| ryl| brs| tnl| gdb| dss| ysh| nwh| npz| mel| mji| ynx| dom| hvk| fme| lnx| rjl| zhl| dgt| sww| iyy| rdx|