In:
Soil Science Society of America Journal, Wiley, Vol. 50, No. 2 ( 1986-03), p. 273-276
Abstract:
Percolation times and saturated hydraulic conductivity rates from 28 test holes were used with data from the literature to relate saturated hydraulic conductivity, K , to percolation time, P . Sites were chosen to represent seven central and western Pennsylvania soils developed in shale and sandstone colluvium, alluvium, glacial outwash, or residual limestone parent materials. Saturated hydraulic conductivity was determined by the shallow well pump‐in method, an in‐situ test that measures three‐dimensional water flow into the soil. Percolation time was determined using a modification of approved procedures of the Environmental Protection Agency and the Pennsylvania Dep. of Environmental Resources. Linear regression analysis performed on the base 10 logarithm of the 28 pairs of data from this study resulted in the equation: log K = −0.309 log P −4.296 (with P in units of s/m and K in units of m/s). This equation was compared to an equation derived from literature data and to a steady‐state three‐dimensional infiltration equation derived from soil‐water flow theory. It was concluded that the literature data and the theoretical equation were different from that generated in this study due to the use of a saturated hydraulic conductivity technique that was sensitive to the layered nature of the soils used. It was further concluded that an equation derived from theory, log K = ‐log ( P ) − log (1 + 4/πα r o ), could be used to convert percolation times, P , to saturated hydraulic conductivity values, K .
Type of Medium:
Online Resource
ISSN:
0361-5995
,
1435-0661
DOI:
10.2136/sssaj1986.03615995005000020003x
Language:
English
Publisher:
Wiley
Publication Date:
1986
detail.hit.zdb_id:
241415-6
detail.hit.zdb_id:
2239747-4
detail.hit.zdb_id:
196788-5
detail.hit.zdb_id:
1481691-X
SSG:
13
SSG:
21
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