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| Titre : |
Modes d'humidification et différenciation podzilique dans deux toposéquences guyanaises
|
| Auteur(s) : | Jean-François Turenne, Auteur |
| Type de document : | Livre |
| Sujets : | Amérique du Sud ; Guyane française ; Sol tropical ; Podzol ; Séquence des sols |
| Résumé : |
The existing intergrade stages between ferrallitic soils and podzols, and the continuons development of sequences showing these three types of soils in,Guiana Coastal Plain, tend to prouve that podzolisation in equatorial regions depends on an actual dynamics. The subject of that research is the study of these actual dynamics of transformation of ferrallitic soils into podzols through the analysis of the biochémical process of humification in humid tropical zone. These processes are essentially determined through the pedoclimatic conditions and the physico-chemical characters of the soil horizons. The formation and fluctuation of a superficiel water-sheet rules the processes of humification and leads the pedological évolution towards podzolisation. The evoluting mode of the organic su[...] The existing intergrade stages between ferrallitic soils and podzols, and the continuons development of sequences showing these three types of soils in,Guiana Coastal Plain, tend to prouve that podzolisation in equatorial regions depends on an actual dynamics. The subject of that research is the study of these actual dynamics of transformation of ferrallitic soils into podzols through the analysis of the biochémical process of humification in humid tropical zone. These processes are essentially determined through the pedoclimatic conditions and the physico-chemical characters of the soil horizons. The formation and fluctuation of a superficiel water-sheet rules the processes of humification and leads the pedological évolution towards podzolisation. The evoluting mode of the organic substances is fondamental : the characters of the organic substances reveaie at each moment the edafic and microclimatic conditions and announce the following stages of the pedogenetic évolution.The investigation method tends to find through the composition and seasonal évolution of the organic stock, the greater nùmber of informations concerning the reached pedogenetic stages. The mature stage of the system being represented by podzols and podzolic soils. |
| Editeur(s) : | Paris : ORSTOM |
| Date de publication : | 1977 |
| Collection : | Mémoire ORSTOM, num. n°84 |
| Format : | 173 p. / graph., tabl., cartes., ref. |
| Langue(s) : | Français |
| Identifiant : | 978-2-7099-0447-6 |
| Lien vers la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=145559 |
Exemplaires (2)
| Localisation | Emplacement | Pôle | Section | Cote | Support | Disponibilité |
|---|---|---|---|---|---|---|
| Kourou | SCIENCES DU MILIEU | AgroParisTech-Kourou | H201.TUR.1977 | Papier | Empruntable Disponible | |
| Kourou | SCIENCES DU MILIEU | AgroParisTech-Kourou | H201.TUR.1977 | Papier | Empruntable Disponible |