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This article in SSSAJ

  1. Vol. 39 No. 1, p. 120-124
     
    Received: Apr 19, 1974
    Published: Jan, 1975


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doi:10.2136/sssaj1975.03615995003900010032x

The Distribution of Creosotebush in West Texas and Eastern New Mexico as Affected by Selected Soil Properties1

  1. C. T. Hallmark and
  2. B. L. Allen2

Abstract

Abstract

Morphological, physical, chemical, and mineralogical studies were made on 32 pedons from west Texas and southeastern New Mexico to evaluate edaphic factors related to creosotebush [Larrea tridentata (D.C.)] distribution.

Creosotebush grows on soils with a wide range of properties. The soils studied were well drained and generally moderately developed, as indicated by horizonation and carbonate redistribution. The data indicate that gravel content and depth to free CaCO3 are the most important soil factors affecting distribution of the shrub in the study area. Soils low in gravel and noncalcareous at the surface tend to be devoid of the shrub. Soils that support creosotebush are generally calcareous throughout the profile and many have significant amounts of gravel. The complex interactions among other edaphic factors such as texture, available water, salinity in deeper horizons, and gypsum content greatly complicate the resolution of properties influencing distribution.

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