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Insectes Sociaux

, Volume 6, Issue 4, pp 343–359 | Cite as

Analyses de sols et matériaux de termitières du Congo Belge

  • M. Maldague
Article

Summary

This work deals with analysis of soils from mounds belonging to the following Termites:Bellicositermes bellicosus Smeathman,Bellicositermes natalensis Haviland,Amitermes unidentatus (evuncifer) Silvestri,Nasutitermes ueleensi Sjöstedt andCubitermes fungifaber Sjöstedt. The following data were collected: texture, organic carbon and nitrogen rates, loss by calcination,pH and colour of dry soil.

In order to compare the different materials, samples were always taken in the mounds and on the adjacent land. The native building materials differ with the Termite species.

As for theMacrotermitinae which take soils from the depth, the texture is finer in the soils coming from the mounds than in the adjacent soils; there is no difference forAmitermes mounds; but for the mounds ofCubitermes andNasutietermes, the rate of fine elements is greater than in the surrounding soils which contain an important amount of iron oxyde concretions.

The buildings ofMacrotermitinae are poorer in organic matter than the adjacent land, but the contrary occurs with the mounds ofCutitermes, Nasutitermes andAmitermes.

Zusammenfassung

Diese Arbeit handelt über die Analyse von Termitennesterböden welche folgenden Arten angehören:Bellicositermes bellicosus Smeathman,Bellicositermes natalensis Haviland,Amitermes unidentatus (evuncifer) Silvestri,Nasutitermes ueleensis Sjöstedt undCubitermes fungifaber Sjöstedt.

Es wurden analysiert: Textur, organischer Stickstoff und Kohlenstoffgehalt, Aschgehalt,pH und Farbe des trockenen Bodens. Um einen Vergleich zu ermöglichen wurden jedesmal Proben entnommen einerseits in den Termitennestern und andererseits in den angrenzenden Böden. Der Ursprung des Baumaterials ändert mit der Termitenart. Bei denMacrotermitinae welche die Materialien aus der Tiefe entnehmen, stellt man fest daß die Textur der Termitennester feiner ist als in den angrenzenden Böden; im Falle derAmitermes bestehen keine Texturunterschieden. Die Nester derCubitermes undNasutitermes sind reicher an feineren Elementen als die benachbarten Böden welche stark mit Lateritkonkretionen angereichert sind. Die großen Gebäude derMacrotermitinae sind viel ärmer an organischem Material als die Außenböden; das Gegenteil wird beobachtet bei den Nestern derCubitermes, Nasutitermes undAmitermes.

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Copyright information

© Masson & Cie 1959

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  • M. Maldague

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