Publications (109)
ARTICLE
Separating autotrophic respiration due to roots from soil heterotrophic respiration in an agroforestry parkland system in Saponé, Burkina Faso
H.R BAZIÉ, J. SANOU, Z. GNANKAMBARY, P.P. SOMÉ, G. ZOMBRÉ and J. BAYALA
Soil respiration is the largest component of ecosystem respiration but little is known about it and its components in parkland systems. We therefore conducted an experiment to estimate the amount of CO 2 respired and to partition it into soil, tree root and crop root contributions in parkland systems in Burkina Faso. Three factors effects were(...)
Carbon balance, CO2 flux, carbon-sink
ARTICLE
Impact des gradients topographique et anthropique sur la diversité des formations ligneuses soudaniennes
Loyapin BONDÉ, Oumarou OUÉDRAOGO, François KAGAMBÈGA, Joseph I. BOUSSIM.
Le paysage soudanien est en pleine mutation avec une conversion progressive des formations soudaniennes en formations sahéliennes. Dans cette étude, menée sur les formations ligneuses soudaniennes, l’objectif était d’évaluer, d’une part, les effets isolés du mode d’utilisation des terres et de la position topographique et, d’autre part, celui(...)
Déterminants floristiques, gradients, utilisations des terres
ARTICLE
RELATIONSHIPS BETWEEN SOIL MICROBIAL BIOMASS, AGGREGATE STABILITY AND AGGREGATE ASSOCIATED-C: A MECHANISTIC APPROACH
Patrizia Guidi, Gloria Falsone, Mare Boussa Tockville, Gilmo Vianello
For the identification of C pools involved in soil aggregation, a physically-based aggregate fractionation was proposed, and additional pretreatments were used in the measurement of the 1-2 mm aggregate stability in order to elucidate the relevance of the role of soil microorganisms with respect to the different aggregate breakdown mechanisms.(...)
Mots clés non renseignés
ARTICLE
RELATING LOSS OF SOIL FERTILITY TO WATER AGGREGATE STABILITY AND NUTRIENT AVAILABILITY IN MOUNTAIN AGRICULTURAL CALCARIC SOILS
Patrizia Guidi, Gloria Falsone, Boussa Tockville Mare, Andrea Simoni, Paola Gioacchini, Gilmo Vianello
We investigated the topsoil from some mountain Regosols for their nutrient status and loss of fertility due to aggregate breakdown, establishing also the relationship between the nutrient losses, the soil characteristics and the aggregates stability. The aggregate stability varied from 57 to 80%. The nutrient losses differed among elements and(...)
Mots clés non renseignés