Biomass, nutrient content, litterfall and nutrient return to the soil in Mediterranean oak forests

• Published in: Forest ecology and management 1999-06, Vol.119 (1), p.39-49
• Main Authors: Rapp, Maurice, Santa Regina, Ignacio, Rico, Mercedes, Gallego, Humberto Antonio
• Format: Article
• Language: English
• Subjects: biogeochemical cycles; biomass; calcium; diameter; Forest biomass; Forest ecosystems; forest litter; forests; France; height; iron; leaf area index; leaves; Litterfall; magnesium; manganese; nitrogen; nitrogen content; nutrient availability; nutrient content; nutrient transport; phosphorus; plant characteristics; potassium; Q. ilex; Q. lanuginosa; Q. pyrenaica; Quercus; Quercus ilex; Quercus lanuginosa; Quercus pyrenaica; soil fertility; Spain
• ISSN: 0378-1127; 1872-7042
• DOI: 10.1016/S0378-1127(98)00508-8

We estimated above-ground biomass, nutrient content, litterfall and nutrient return to the soil in deciduous and evergreen Quercus pyrenaica Will., Quercus lanuginosa Lamk and evergreen Quercus ilex L. oak forests, respectively, near Salamanca (Spain) and Montpellier (France). The calculated biomass ranged from 64 to 121 Mg ha −1. Perennial material (trunks and branches) represented 96–97% in the four Spanish Q. pyrenaica stands and 93% in the French Q. lanuginosa and Q. ilex stands. Q. pyrenaica had higher P, Mg, Fe and Mn contents than the other two species from southern France. In contrast, these latter species had higher N and Ca concentrations. All of these differences were related to soil nutrient availability, especially Ca, Mg, P, Fe and Mn. Comparison of the chemical composition of leaves on trees with that of leaf litter indicated retention and translocation of N, P and K from leaves to perennial biomass and recycling of Ca and Mg from trees to the soil.