Retranslocament de nutrients en les fulles senescents de faig (Fagus sylvatica L.)
Nutrient (P. K. Ca and Mg) contents of leaves prior to senescence, nutrient return in leaf litterfall, and nutrient lcaching in throughfall were measured during October and November in a beech forest experimental plot in the Montseny Mountains (NE Spain). Only K was leached in significant amounts. R...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1985 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | catalán |
| OAI Identifier: | oai:ddd.uab.cat:38918 |
| Acceso en línea: | https://ddd.uab.cat/record/38918 |
| Access Level: | acceso abierto |
| Palabra clave: | Forest biogeochemistry Leaching Leaf senescence Litterfall Montseny Nutrient cycling Phosphorus Potassium Throughfall |
| Sumario: | Nutrient (P. K. Ca and Mg) contents of leaves prior to senescence, nutrient return in leaf litterfall, and nutrient lcaching in throughfall were measured during October and November in a beech forest experimental plot in the Montseny Mountains (NE Spain). Only K was leached in significant amounts. Rctranslocation of P and K amounted to 46% and 13%. respectively. of the foliar nutrient contents before senescence. Calcium accumulated in the leaves during this period. while Mg showed no net retranslocation or accumulation. Retranslocated P can supply a large fraction of the annual P requirements of the trees. and contributes to keep a tight P cycle. However. the percentagc of P retranslocated in this forest lies in the lower range of literature values for forest ecosystems. |
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