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Abstract

 

This article in SSSAJ

  1. Vol. 43 No. 2, p. 377-383
     
    Received: Mar 16, 1978
    Accepted: Sept 6, 1978


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doi:10.2136/sssaj1979.03615995004300020028x

An Aberrant Toposequence of Soils through a Titi Swamp1

  1. C. L. Coultas,
  2. A. F. Clewell and
  3. E. M. Taylor Jr.2

Abstract

Abstract

Three Great Groups of soil, Humaquepts, Haplaquods, and Psammaquents, were found on a traverse through a titi swamp in north Florida. The Humaquept occurred in the lowest, wettest position and plants of Cyrilla racemiflora L. and Nyssa biflora Walt, were largely restricted to these soils. These soils were extremely acid, low in extractable bases, well supplied with organic C, and highest in clay content. Haplaquods occurred in a higher position with better drainage. On these soils vegetation included Cliftonia monophylla (Lam.) Sarg., Magnolia virginiana L. and Myrica inodora Bartr. inside the titi swamp, and outside the swamp, species common to the pine flatwoods. These Haplaquods were acid and low in extractable bases. They contained less organic C and clay than the Humaquept. The Psammaquents were the best drained due to their high position and coarse texture. They contained the least organic C.

Evidence is presented which indicates that the titi swamp has encroached into areas formerly vegetated with pine flatwoods. This was probably due to recent fire control and wetter soil conditions.

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