scholarly journals Aboveground litter production and bioelement potential return in an evergreen oak (Quercus rotundifolia) woodland near Salamanca (Spain)

1996 ◽  
Vol 53 (4) ◽  
pp. 811-818 ◽  
Author(s):  
A Martín ◽  
JF Gallardo ◽  
I Santa Regina
Keyword(s):  
Litter Production ◽  
Evergreen Oak ◽  
Aboveground Litter ◽  
Quercus Rotundifolia

scholarly journals Plant litter decomposition in a semiarid rangeland of Argentina: species and defoliation effects

2019 ◽  
Vol 41 (5) ◽  
pp. 371
Author(s):  
Mariela L. Ambrosino ◽  
Carlos A. Busso ◽  
Yanina A. Torres ◽  
Leticia S. Ithurrart ◽  
Juan M. Martínez ◽  
...  
Keyword(s):  
Litter Decomposition ◽  
Leaf Blade ◽  
Plant Litter ◽  
Perennial Grasses ◽  
Litter Production ◽  
Litter Bags ◽  
N Content ◽  
Plant Litter Decomposition ◽  
Root Litter ◽  
Aboveground Litter

Plant litter decomposition is critical for terrestrial ecosystem productivity. Poa ligularis Nees ex Steud and Nassella tenuis (Phil.) Barkworth are native, desirable perennial grasses in central Argentina’s rangelands. Amelichloa ambigua (Speg.) Arriaga & Barkworth is only consumed when a better forage is unavailable. Litter traps were used to collect aboveground litter during two years. In March 2012, six bags, each one containing either leaf blade (three bags, one per species) or root litter (three bags, one per species) of the three species were located below the canopy of each replicate plant of the studied species (hereafter referred to as ‘location’). Blade litter bags were located on the soil surface, and root litter bags buried at 10cm soil depth. This allowed evaluation of the effects of defoliation, the different species canopies and the microbial community activity around their roots on decomposition of above- and belowground litter. For each species, twenty plants were either defoliated twice (5cm stubble height) or remained undefoliated during the growing season. Litter bags were collected after 2, 7, 13 and 24 months incubation. The study was repeated in 2013, with additional bags were placed for N content determination on leaf blade and root litters. Aboveground litter production was highest in P. ligularis; however, no differences were observed among species when the effect of plant size was eliminated. Aboveground litter of desirable species had higher N content and decomposed faster than that of A. ambigua. The opposite was recorded for root litter. Defoliation had no effect on litter decomposition, but location effects were detected after one year of incubation. Desirable perennial grasses promoted organic matter loss from litter, a key factor in increasing soil fertility in this semiarid ecosystem.

Mediterranean evergreen oak diversity: morphological and chemical variation of acorns

1992 ◽  
Vol 70 (7) ◽  
pp. 1459-1466 ◽  
Author(s):  
Zara Afzal-Rafii ◽  
Richard S. Dodd ◽  
Yvonne Pelleau
Keyword(s):  
Quercus Ilex ◽  
Multivariate Analyses ◽  
The Other ◽  
Chemical Variation ◽  
Quercus Coccifera ◽  
Biometrical Analysis ◽  
Spanish Populations ◽  
Evergreen Oak ◽  
The One ◽  
Quercus Rotundifolia

Acorns of mediterranean evergreen oak were collected from eight ecogeographically contrasting localities in Italy and Spain. Biometrical analysis of acorns and their cupules showed much greater variation among Spanish populations, encompassing the variation in Italy. The Spanish population at El Pardo, considered the type locality for Quercus rotundifolia, separated from all others. Multivariate analyses of the chemical data indicated, on the one hand, separation of Spain from Italy, and on the other hand, a separation of interior Spanish populations from coastal populations. The importance of lipid composition in the former separation may reflect genetic differentiation between these two origins. Coastal populations were closer to Italian and we suggest were a zone of introgression and hybridization between Quercus ilex and Q. rotundifolia and probably also Quercus coccifera at Bonete Albacete. Key words: Quercus ilex, Quercus rotundifolia, biometry, diversity, chemistry, ecogeography.

Decomposition rate of Quercus rotundifolia leaves in an evergreen oak forest of the Duero Basin (Province of Zamora, Spain)

Vegetatio ◽  
1992 ◽  
Vol 99-100 (1) ◽  
pp. 259-262 ◽  
Author(s):  
I. Hern�ndez ◽  
J. F. Gallardo ◽  
I. Santa Regina ◽  
C. Quilchano
Keyword(s):  
Decomposition Rate ◽  
Oak Forest ◽  
Duero Basin ◽  
Evergreen Oak Forest ◽  
Evergreen Oak ◽  
Quercus Rotundifolia

Adsorption of Zn(II) in aqueous solution by activated carbons prepared from evergreen oak (Quercus rotundifolia L.)

2008 ◽  
Vol 153 (1-2) ◽  
pp. 28-36 ◽  
Author(s):  
M. del Mar Gómez-Tamayo ◽  
Antonio Macías-García ◽  
M. Angeles Díaz Díez ◽  
Eduardo M. Cuerda-Correa
Keyword(s):  
Aqueous Solution ◽  
Activated Carbons ◽  
Evergreen Oak ◽  
Quercus Rotundifolia
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