Leaf shedding, crown condition and element return in two mixed holm oak forests in Tuscany, central Italy

Bussotti, Filippo; Borghini, Francesca; Celesti, Carlo; Leonzio, Claudio; Cozzi, Alberto; Bettini, Davide; Ferretti, Marco

doi:10.1016/s0378-1127(02)00283-9

Cited by 35 publications

(44 citation statements)

References 18 publications

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“…Different studies show that annual litterfall production in Q. ilex is between 3.8-6.94 Mg·ha -1 ·year -1 (Verdu et al 1980;Cole and Rapp 1981;Ferrés and Llanza 1984;Rodà et al 1999;Bussotti et al 2003;Andivia et al 2009), values which are similar to those found in this study. The present study gives close results to La Castanya (Verdu et al 1980), with a production of 4.5 Mg ha .…”

Section: The Basal Area Incrementsupporting

confidence: 90%

“…The first one takes place in spring, after the sprouting, and it is common in Mediterranean species (Caritat et al 1996;Martín et al 1996;Rapp et al 1999;Bussotti et al 2003). The second peak in the intra-year litterfall occurs, as various authors have observed, in other Mediterranean forests (Leonardi et al 1992;Bussotti et al 2003;Caritat et al 2006). A second leaf fall may occur in October and November.…”

Section: The Basal Area Incrementmentioning

confidence: 88%

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Litterfall and growth dynamics relationship with the meteorological variability in three forests in the Montseny natural park

Bou

Caritat

Vilar

2015

Folia Forestalia Polonica

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We assessed the influence of some environmental conditions (temperature and rainfall) on the litterfall and BAI (basal area increment), in three close forests in the Montseny massif (NE part of the Iberian peninsula, Spain). Two of them are composed of deciduous species Fagus sylvatica and Quercus petraea, and the other one is a Mediterranean evergreen species, Quercus ilex. We have collected monthly data about litterfall and radial growth since 2007. For each forest there are tree plots, with litterfall traps and band dendrometers. This data has been related with the meteorological parameters of meteorological station closed to the study area. Our results show that F. sylvatica recorded the biggest drop in annual litterfall (6 Mg·ha ) and that all the values were similar to those observed in other forests and mountains with the same state of maturity. Regarding the litterfall, the investigation found a decline in the leaves fall in deciduous trees in years with hot summers. In addition, these warm summers produce a decline in the F. sylvatica BAI, but not in Q. petraea. Concerning growth, we found that Q. petraea increases the BAI on the study period while F. sylvatica does not. In conclusion, we believe that in the future Q. petraea will be more tolerant to the warm conditions than F. sylvatica, making the former a possible replacement of the second species.

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Section: The Basal Area Incrementsupporting

confidence: 90%

Section: The Basal Area Incrementmentioning

confidence: 88%

Litterfall and growth dynamics relationship with the meteorological variability in three forests in the Montseny natural park

Bou

Caritat

Vilar

2015

Folia Forestalia Polonica

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“…The values obtained are below the scarce studies carried out in Spain (Gallardo et al, 1998;Pardo et al, 1997) with this almost endemic tree species, and slightly lower than results from a recent study of Quercus canariensis Willd., 1.5-1.6 Mg C ha -1 year -1 (Aponte et al, 2010). Our values are within the range of some studies made on evergreen Quercus ilex L in Spain (Bellot et al, 1992;Martin et al, 1996), but far below with results from Q. ilex in Central Italy (Bussotti et al, 2003). Our results are also lower than those from deciduous oaks in northern Atlantic Spain (Díaz-Maroto and Vila-Lameiro, 2006).…”

Section: Discussionsupporting

confidence: 76%

Aboveground soil C inputs in the ecotone between Scots pine

Díaz-Pinés¹,

Sánchez²,

Montes

2011

For. syst.

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Aboveground litterfall from Pyrenean oak (Quercus pyrenaica Willd. a semi-deciduous species), mixed Pyrenean oak-pine and pine (Pinus sylvestris L.) forest stands was surveyed in two sites in a Mediterranean mountain area during a period of 36 and 29 months, respectively. Separation in different litterfall fractions was performed, and C content of each fraction was measured to calculate the C flux to the soil due to litterfall. Our results showed that litterfall input was higher in pine stands than in Pyrenean oak stands (1.8-2.4 Mg C ha -1 year -1 at pine plots and 0.9-1.4 Mg C ha -1 year -1 at oak plots) and mixed plots showed intermediate values. Needles or leaves contributed about 50% to total litterfall, underpinning the importance of the rest of materials in the soil C input. The seasonal pattern showed a maximum in Pyrenean oak stands in autumn-early winter, while the pine stands had the maximum in summer, which is in consonance with the physiology of fall of broadleaves and coniferous trees in these latitudes , but clearly differs from needle-shed in Central and Northern Europe. A dry-spring year corresponded to a lower leaf fall during the following autumn, and leaf abscission came some weeks earlier than a year with a rainy spring.Key words: litterfall; Pinus sylvestris; Quercus pyrenaica; ecotone; Mediterranean mountain. ResumenCaída de hojarasca en un ecotono Pinus sylvestris L.-Quercus pyrenaica Willd. en la Sierra de Guadarrama La tasa de caída de hojarasca en parcelas puras de rebollo (Quercus pyrenaica Willd.), parcelas mixtas de rebollo y pino silvestre y parcelas puras de pino (Pinus sylvestris L.) fue estudiada en dos localizaciones de montaña mediterránea durante 36 y 29 meses, respectivamente. Se llevó a cabo una separación de los componentes de la hojarasca, y se determinó el porcentaje de C en cada una de las fracciones, para calcular un flujo de entrada de C al suelo debido al desfronde. Nuestros resultados muestras que la tasa de caída de hojarasca fue más alta en parcelas de pino que de rebollo, alrededor del doble (1.8-2.4 Mg C ha -1 año -1 en pino frente a 0.9-1.4 Mg C ha -1 año -1 en rebollo); las parcelas mixtas mostraron valores intermedios. Las acículas u hojas contribuyeron alrededor del 50% al total de caída de hojarasca. El patrón estacional mostró un máximo de caída de hojarasca de rebollo en otoño y comienzos de invierno, mientras que en las parcelas de pino, dicho máximo se produjo en verano, lo que es congruente con la fisiología de la caída de hojas o acículas en frondosas y coníferas en estas latitudes, pero desmarcándose de los valores obtenidos en Europa Central y del Norte. Un año con primavera seca coincidió con un desfronde de hojas de rebollo menor; asimismo, la caída de la hoja se adelantó algunas semanas con respecto al año con una primavera lluviosa.

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“…This may be because in Mediterranean areas, leaves that fall at the end of spring can be interpreted as an evolutionary adaptation to a hydric deficit that can occur during the summer dry period of July and August [12]. When the conditions are favourable in autumn, we may observe a second leaf fall peak, much smaller that the spring one and this has also been observed by other authors like Leonardi et al [18] and Bussotti et al [5]. This last leaf fall may be related to a second sprouting that happens after the summer drought and before the lowering of temperatures in winter.…”

Section: Seasonal Patterns Of Leaves and Twigssupporting

confidence: 81%

Litter production in aQuercus suberforest of Montseny (NE Spain) and its relationship to meteorological conditions

et al. 2006

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-From 1996 to 2002 the monthly litterfall in a Quercus suber forest ecosystem of Montseny (NE Spain) was recorded and its relationship to meteorological variables was statistically analysed. The average annual production (477 g m −2 yr −1 ) was similar to those found in other Mediterranean evergreen forests with relatively high rainfall. The main components were the leaves (55% of the total biomass), followed by acorns (22%) and twigs (16%). Litter production was highest during May and June, when the majority of the old leaves fell. When the meteorological conditions were favourable, a second leaf fall collection was observed. Acorn production in 2001 was about nine times that of the previous years, indicating a mast year. In general, the different litterfall components were highly correlated in time except for the acorns. Interannual covariation was significant for leaves/twigs and leaves/catkins. Catkins were the most variable component with also strong seasonality, acorns were also very variable with low seasonality, while leaves were less variable and with the strongest seasonality. After accounting for seasonal covariation, there were significant effects of rainfall on twig litterfall and of temperature on leaf litterfall, the years with highest leaf litterfall being the hottest. an −1 ) est similaire à celles déjà trouvées dans d'autres forêts sempervirentes avec une pluviosité relativement élevée du pourtour méditerranéen. Les éléments principaux composant la litière ont été : des feuilles (55 % du total de la biomasse), suivies par les glands (22 %) et des rameaux (16 %). La production de litière a été plus importante pendant les mois de mai et de juin, période pendant laquelle sont tombé la plupart des vieilles feuilles. Lorsque les conditions météorologiques ont été favorables une deuxième chute de feuilles a été observée. En 2002, la production de glands a été environ 9 fois plus importante que celle des années précédentes ce qui montre qu'il s'est agi d'une année semencière. En général les différents éléments composant la litière ont présenté une haute corrélation temporelle, sauf pour la chute des glands. La covariation interannuelle a été significative pour feuilles/rameaux et pour feuilles/chatons. Les chatons ont été les éléments les plus variables et ont aussi montré une grande saisonnalité, les glands ont présenté une grande variabilité avec une faible saisonnalité, tandis que les feuilles ont eu moins de variabilité et la plus grande saisonnalité.0Prenant en compte les covariations saisonnières, la pluviosité a eu des effets significatifs sur l'importance des rameaux dans les chutes de litière et la température sur l'importance des feuilles dans les chutes de litière ; en effet les années les plus chaudes étant celles qui présentent les chutes de feuilles les plus importantes dans la litière. chute de litière / péninsule ibérique / chêne liège / climat méditerranéen / conditions météorologiques

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Leaf shedding, crown condition and element return in two mixed holm oak forests in Tuscany, central Italy

Cited by 35 publications

References 18 publications

Litterfall and growth dynamics relationship with the meteorological variability in three forests in the Montseny natural park

Litterfall and growth dynamics relationship with the meteorological variability in three forests in the Montseny natural park

Aboveground soil C inputs in the ecotone between Scots pine

Litter production in aQuercus suberforest of Montseny (NE Spain) and its relationship to meteorological conditions

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