TAILIEUCHUNG - Báo cáo lâm nghiệp: "Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế, đề tài: "Biomass, litterfall and nutrient content in Castanea sativa coppice stands of southern Europe. | Ann Scl For 1996 53 1071-1081 Elsevier INRA 1071 Original article Biomass litterfall and nutrient content in Castanea sativa coppice stands of southern Europe s Leonard 1 2 I Santa Regina3 M Rapp4 HA Gallego3 M Rico3 Facolta di Scienze Matematiche Fisiche e Natural Università di Catania 19 via A Longo 95125 Catania 2 Corso di Laurea in Scienze Forestall Università di Palermo 23 via Roma 92010 Bivona Italy 3IRNA-CSIC Cordel de Merinas 37071 Salamanca Spain 4CEFE-CNRS BP 5051 34033 Montpellier cedex France Received 3 February 1995 accepted 8 November 1995 Summary - Aboveground biomass and nutrient content litterfall and nutrient return to the soil were studied in Castanea sativa Mill forests near Salamanca Spain Montpellier France and Catania Italy . Best regression equations for the aboveground biomass were obtained by applying the allometric Y biomass aX DBH b method. The three different regression equations were very similar especially when comparing the Italian and French sites. The main source of difference concerned the different DBH repartition for trees at the six sites. Litter production was higher in the Spanish stand than in the Italian stands. N Ca and Mg recycled in the same proportion in all stands. In contrast twice as much p and K was recycled in the Italian stands than in the Spanish stand. biomass litterfall Castanea sativa I nutrient content Resume - Biomasse retombée de litière et teneur en nutriments dans des taillis de Castanea sativa Mill du sud de I Europe. Les biomases et les minéralomasses les retombées de litière et la restitution au sol de bioelements par leur intermédlaire ont été étudiées dans des peuplements de Castanea sativa Mill en Espagne province de Salamanque en Italie massif de I Etna et en France Cévennes . Les meilleurs correlations et résultats ont été trouvés avec des regressions allométriques de type Y biomasse aX diamètre tronc à 1 30 m b. Les paramètres des differentes equations de regression sont semblables et très .

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