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Soil Science Society of America Journal Abstract -

Preliminary Study of Bolivian Soils1


This article in SSSAJ

  1. Vol. 17 No. 2, p. 128-131
    Received: Nov 25, 1952

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  1. R. Earl Storie2



Bolivia has great contrasts in topography, climate, vegetation, geology, and soils. There are three broad physiographic regions: I. Altiplano; II. Montanas-Valles, and III. Llanos, which are divided into 11 soil subregions (as shown on Soil Region Map).

The Northern Altiplano (Ia) has prairie-like soils with many secondary soils varying from recent alluvium to claypan and hardpan soils; the Northern Andes Mountains (Ib) has Alpine Prairie soils; the Southern Altiplano (Ic) has Gray Desert soils, and the Southern Altiplano Mountains has Gray Desert lithosols.

The Yungas (IIa), a region of semitropical climate, has yellow and red lateritic soils; the Cochabamba Valley (IIb), where the climate is semiarid, has Noncalcic Brown soils; and the Southern Mountains (IIc) has Noncalcic Brown upland and lithosol soils.

The Gran Chaco alluvial plain (IIIa) and the Santa Cruz Plains (IIIc) have large areas of calcareous alluvial soils; the Eastern Llanos or Plains (IIId) has large areas of lateritic and laterite soils; while the Northern Tropical Plains (IIIe) has large areas of alluvial soils of slightly acid reaction.

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