Perched Water Tables on Argixeroll and Fragixeralf Hillslopes
P.A. McDaniela,
R.W. Gabehartb,
A.L. Falena,
J.E. Hammela and
R.J. Reuterc
a Soil Science Division, Dep. of Plant, Soil, & Entomological Sciences, Univ. of Idaho, Moscow, ID 83844-2339
b Idaho Dep. of Agriculture, 629 C Washington St. North, Twin Falls, ID 83301
c Dep. of Rangeland Resources & Wildland Soils, Humboldt State Univ., Arcata, CA 95521

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Fig. 1. Location map of the northwestern USA. Inset shows location of study sites; approximate extent of the core of the Palouse region is indicated by shading
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Fig. 2. Hydrographs for middle slope well positions at Argixeroll and Fragixeralf sites for 1994 through 1998. Genetic horizon depths are indicated at the right of each hydrograph sequence. Weather data are from a location 2 km east-northeast of Fragixeralf site
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Fig. 3. Hydrographs for hillslope transects at Argixeroll and Fragixeralf sites during the 1994-1995 season. Genetic horizon depths are indicated at the right of each hydrograph
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Fig. 4. Eh potentials for E horizons of middle and lower slope positions at Argixeroll site. Each data point represents average of five Pt electrode readings corrected to a standard H2 electrode. Horizontal dashed line indicates Fe(III)-Fe(II) transition based on soil pH of 5.5
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Copyright © 2001 by the Soil Science Society of America.