HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Bouma, J. Articles by Hole, F. D. Search for Related Content PubMed Articles by Bouma, J. Articles by Hole, F. D. Agricola Articles by Bouma, J. Articles by Hole, F. D.

Soil Structure and Hydraulic Conductivity of Adjacent Virgin and Cultivated Pedons at two Sites: A Typic Argiudoll (silt loam) and a Typic Eutrochrept (clay)¹

ABSTRACT

Soil morphology and hydraulic conductivity (K) of principal soil horizons of paired virgin and cultivated soil pedons were studied at two sites: a Tama silt loam (Typic Argiudoll) and an Oshkosh clay (Typic Eutrochrept). About a century of cultivation had led to reduction of K (measured by the Bouwer double-tube method) in the upper part of the solum below the Ap. Corresponding changes in soil morphology are noted. The reductions in K are paralleled by increases in bulk density and decreases in porosity and organic matter content in the soil horizons. At a depth of 80 to 90 cm in the clay soil, K increased apparently as a result of formation of interpedal voids as the alfalfa crop (Medicago sativa L.) extracted moisture.

¹ Contribution from the Soil Survey Div., Wisconsin Geol. & Natural History Survey, Univ. Ext., and the Dept. of Soil Sci., Univ, of Wisconsin, Madison. This project was supported by the Geol. & Natural History Survey and by the Wisconsin State Dept. of Nat. Res., in cooperation with the Dept. of Soil Sci. Published with the approval of the Director of the Wisconsin Geol. & Natural History Survey and the Director of the Wis. Agr. Exp. Sta.

² Visiting Assistant Professor and Professor of Soil Science, respectively, Wisconsin Geol. & Natural History Survey, and Dept. of Soil Science.

Received for publication April 24, 1970. Accepted for publication December 1, 1970.

This article has been cited by other articles:

				A. Rachman, S. H. Anderson, C. J. Gantzer, and E. E. Alberts Soil Hydraulic Properties Influenced by Stiff-Stemmed Grass Hedge Systems Soil Sci. Soc. Am. J., July 1, 2004; 68(4): 1386 - 1393. [Abstract] [Full Text] [PDF]