Le nitrate des ruisseaux, indicateur de l'état sanitaire et des perturbations de l'écosytème forestier. Exemple du Mont Lozère
| Autor: | François Lelong, Jean-François Didon-Lescot, Bernard Guillet |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Clearcutting
Hydrology chemistry.chemical_classification Forest floor geography geography.geographical_feature_category Drainage basin chemistry.chemical_element Ocean Engineering Forestry Felling Nitrogen chemistry.chemical_compound Nutrient chemistry Nitrate Environmental science Organic matter Ecology Evolution Behavior and Systematics |
| Zdroj: | Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science. 327:107-113 |
| ISSN: | 1251-8050 |
| Popis: | The water from a coniferous catchment was sampled over a 14-year period, corresponding to different phases of forest status: healthy, then declining, whole-tree-harvested and finally newly afforested. The concentrations of nitrate and basic cations were found to vary, particularly after the clearfelling, as a consequence of the mineralization of the organic matter. Losses of nutrients are temporarily important, and for nitrogen account for less than 10 % of the organic nitrogen stored in the forest floor and in the felling debris. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|