The genesis and classification of mountain soils developed on tuffs in Indonesia.

Authors

  • J. van Schuylenborgh
  • F.F.F.E. van Rummelen

DOI:

https://doi.org/10.18174/njas.v3i3.17813

Abstract

Profile characteristics and analytical data of the soils occurring at 600-2000 m altitudes under humid tropical conditions show a predominant influence of the parent material. Brown podzolic soils are formed on liparitic tuffs, grey-brown podzolic soils on andesitic tuffs and brown forest soils on basalto-andesitic tuffs. These "tropical grey-brown podzolic" and "tropical brown forest" soils with clay minerals of the 1: 1 type crystal lattice seem to be formed by rapid weathering under the influence of CO2-containing water, in contrast to the more intensive but less rapid weathering of similar soils in the temperate zones of America (2: 1 type crystal lattice) under the influence of relatively high concentrations of organic acids. The difference in weathering accounts for the greater mobility of Al than of Fe under tropical conditions. (Abstract retrieved from CAB Abstracts by CABI’s permission)

Downloads

Published

1955-08-01

Issue

Vol. 3 No. 3 (1955)

Section

Papers

License

© Copyright KLV All rights reserved. The copyright covers the exclusive right to reproduce and distribute the contribution, including reprints, translations, photographic reproductions, microform, electronic form (offline, online), or any other reproductions of similar nature. The Author may publish his/her contribution on his/her personal Web page provided that he/she creates a link to http://library.wur.nl/ojs/index.php/njas and that together with this electronic version it is clearly pointed out, by prominently adding "© KLV", that the copyright for this contribution is held by KLV. The full-text version may be available from the Author's Web page only after a delay of 12 months following the publication of the paper, whereas such a delay is not required for the abstract.