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This article in SSSAJ

  1. Vol. 34 No. 1, p. 134-136
     
    Received: May 8, 1969
    Published: Jan, 1970


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doi:10.2136/sssaj1970.03615995003400010036x

Nonpedogenetic Texture Bands in Outwash Sands of Michigan: Their Origin, and Influence on Tree Growth1

  1. Peter R. Hannah and
  2. Robert Zahner2

Abstract

Abstract

Origin of many thick well-developed nonpedogenetic texture bands is attributed to deposition in glacial outwash concurrent with the deposition of adjoining layers of sand outwash. Nonpedogenetic bands are thicker, less stratified, finer textured, and more massive and convoluted than pedogenetic bands. Roots of forest trees tend to branch and proliferate in the region immediately above thin bands and penetrate and develop normally in thick till-like bands. Site indexes for natural jack pine (Pinus banksiana Lamb.) and bigtooth aspen (Populus grandidentata Michx.) stands, and stemwood production in red pine (Pinus resinosa Ait.) plantations are significantly higher on soils with prominent texture bands than on soils where bands are absent or weakly developed.

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