The aims of the present thesis was to improve our knowledge on (i) the relationships between humus morphology and mineral nitrogen (N) production, (ii) N cycle and its regulation within the different soil layers and (iii) the environmental factors responsible for the development of humus forms and controlling soil N pathways along a chronosequence of 130 years of pure beech. The nitrogen cycle. Potential net ammonification increases with stand age in the organic horizons, whereas both potential and net in situ nitrification decrease in OL and A horizons. Potential net nitrification takes mainly place in the OF and OH horizons with ammonification always higher in the organic horizons. The fungal N transformations clearly dominate in the OL h...
Nitrogen fertilisers have contributed substantially to global food security and nutrition. However, ...
Au Québec, le 49° de latitude nord représente la frontière entre la forêt mixte dominée par le sapin...
The increasing use of renewable energy sources as substitutes to fossil fuels has provoked an increa...
The aims of the present thesis was to improve our knowledge on (i) the relationships between humus m...
Water availability governs terrestrial nutrient cycles by impacting the functioning of both plants a...
El seguimiento en el campo de la nitrificación tras la deforestación de un Encinar (Quercus ilex L.)...
The nature and intensity of environmental changes projected by climate models for Eastern Canada cou...
La présence de plantes accélère la décomposition de la matière organique du sol (MOS) au travers de ...
L’impact de l’homme sur l’environnement mondial et sur la diversité et le fonctionnement des écosyst...
In cropland soils, plant residues and microorganisms are the main sources of organic matter. Soil or...
The impact of global environmental changes on the diversity and functioning of terrestrial ecosystem...
Diplôme : Dr. Ing.Facing growing problems of nitrate pollution of aquifers, the Nitrate European dir...
Ammonium (NH4+) is a nitrogen source of great interest in the context of sustainable agriculture. It...
Many farmers apply manure in the fall (autumn season), but without an actively growing crop in the g...
Integration of the priming effect* (PE) in ecosystem models is crucial to better predict the consequ...
Nitrogen fertilisers have contributed substantially to global food security and nutrition. However, ...
Au Québec, le 49° de latitude nord représente la frontière entre la forêt mixte dominée par le sapin...
The increasing use of renewable energy sources as substitutes to fossil fuels has provoked an increa...
The aims of the present thesis was to improve our knowledge on (i) the relationships between humus m...
Water availability governs terrestrial nutrient cycles by impacting the functioning of both plants a...
El seguimiento en el campo de la nitrificación tras la deforestación de un Encinar (Quercus ilex L.)...
The nature and intensity of environmental changes projected by climate models for Eastern Canada cou...
La présence de plantes accélère la décomposition de la matière organique du sol (MOS) au travers de ...
L’impact de l’homme sur l’environnement mondial et sur la diversité et le fonctionnement des écosyst...
In cropland soils, plant residues and microorganisms are the main sources of organic matter. Soil or...
The impact of global environmental changes on the diversity and functioning of terrestrial ecosystem...
Diplôme : Dr. Ing.Facing growing problems of nitrate pollution of aquifers, the Nitrate European dir...
Ammonium (NH4+) is a nitrogen source of great interest in the context of sustainable agriculture. It...
Many farmers apply manure in the fall (autumn season), but without an actively growing crop in the g...
Integration of the priming effect* (PE) in ecosystem models is crucial to better predict the consequ...
Nitrogen fertilisers have contributed substantially to global food security and nutrition. However, ...
Au Québec, le 49° de latitude nord représente la frontière entre la forêt mixte dominée par le sapin...
The increasing use of renewable energy sources as substitutes to fossil fuels has provoked an increa...