Results 91 to 100 of about 5,233 (246)

Al speciation in tropical podzols of the upper Amazon Basin: A solid-state 27Al MAS and MQMAS NMR study

open access: yes, 2007
contribution No. 397International audienceIn the upper Amazon Basin, aluminum previously accumulated in lateritic formations is massively remobilised in soils by podzolization and exported in waters. We have investigated the speciation of aluminum in the
Bardy, Marion   +13 more
core   +1 more source

Les couvertures pédologiques à podzols du bassin du Haut Rio Negro (Amazonie)

open access: yes, 1999
Une carte des couvertures pédologiques du bassin du Haut Rio Negro a été réalisée à l'aide de données de terrain et d'une photo-interprétation d'images satellitaires et radar aéroporté. Elle concerne la partie du Bouclier Guyanais commune au Brésil, à la
Volkoff, Boris   +2 more
core  

Representativeness of mixed samples for evaluation of organic carbon in soil

open access: yesБюллетень Почвенного института им. В.В. Докучаева
The aim to solve the methodological problem of assessing variability of soil organic carbon content (Corg) in layer 0–20 cm based on 10-fold independent mixed sampling from the same field during one day.
N. B. Khitrov
doaj   +1 more source

C dynamics in Amazonian podzols under climate change

open access: yes, 2016
It has recently been shown that the C stocks in Amazonian podzols are very large. They are much larger than was previously thought, particularly in the Bh horizon, which has been estimated to contain in excess of 13Pg C for Amazonia alone.
Pouteau, Valerie   +7 more
core  

Sols ferrallitiques et podzols en Guyane septentrionale

open access: yes, 1990
L'analyse pédologique tridimensionnelle de deux plateaux situés près de la rivière Mana (Guyane Française) permet d'établir l'historique récent de la pédogenèse régionale.
Veillon, Luc
core  

The nature of the podzols at Agnes Banks, N.S.W., and the origin of the sands in which they are developed

open access: yes, 1977
This thesis has demonstrated the ways in which podzols in the Sydney Region vary with subtle differences in site. It has clarified the primary factors which must preclude podzol development.
Ruth A. Whittle (13190906)
core   +1 more source

Hydro-physical characterization of soils under the Restinga Forest

open access: yesScientia Agricola
: Knowledge of the hydraulic properties of the soil is of crucial importance to an understanding of the interactions between vegetation, soil and water.
Miguel Cooper   +4 more
doaj   +1 more source

Changes in Organic Carbon Stock in Soil and Whole Tree Biomass in Afforested Areas in Latvia. [PDF]

open access: yesPlants (Basel), 2023
Petaja G   +7 more
europepmc   +1 more source

Transformations mineralogiques dans les podzols et les sols podzoliques de Galice (NW Espagne)

open access: yes, 1987
The weathering and formation of minerals in Podzols and the hypotheses on the mechanism of podzolization are discussed in accord with the composition of active fraction (colloids and soil solution) and physico-chemical parameters (pe-pH) of horizons of ...
Macías Vázquez, Felipe   +2 more
core  

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