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 Google Scholar Google Scholar Articles by Rieger, S. Articles by Juve, R. L. Search for Related Content PubMed Articles by Rieger, S. Articles by Juve, R. L. Agricola Articles by Rieger, S. Articles by Juve, R. L.

Soil Development in Recent Loess in the Matanuska Valley, Alaska¹

ABSTRACT

Most well-drained soils in the Matanuska Valley, Alaska, are developing in loess which is still being deposited. In deep loess close to the river floodplains that are its source, the soils are Regosols. Farther from the floodplains, in shallower loess, soils are Regosol-Podzol intergrades, and, at still greater distances, they are Podzols. In the Regosols it is likely that the rate of accretion of loess exceeds the rate of horizon differentiation, but that in more distant areas with a lower rate of dust accumulation podzolization can proceed. There are indications of development of more distinct Podzols in both the Regosols and Regosol-Podzol intergrades at an earlier time during a pause or reduction in rate of loess deposition, and there is evidence of incipient podzolization even in the Regosols at the present time.

¹ Contribution from the Soil Survey, Soil Conservation Service, USDA.

² State Soil Scientist, Palmer, Alaska, and Soil Scientist, Soil Survey Laboratory, Lincoln, Nebr., respectively.

Received for publication July 14, 1960. Accepted for publication September 13, 1960.