Silvogenetic typology of Spanish firwood Abies alba Mill. forests

Aunós, A.; Martínez, Esther Portal; Blanco, R.

doi:10.5424/srf/2007161-00997

Cited by 11 publications

(2 citation statements)

References 6 publications

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“…We used two different variables to capture the effect of stand structure on the WS-damage of our plots. First, the coefficient of variation of the diameters at breast height (CVdbh) was considered as a sound and simple proxy to reflect the stand's vertical structure, or degree of unevenagedness (Montes et al 2005, Aunos et al 2007). In its formalization, we assumed the positive correspondence among tree age, tree height and tree diameter in uneven-aged stands (Schütz 1997).…”

Section: Data Preparationmentioning

confidence: 99%

Wind and snow damage in the Pyrenees pine forests: effect of stand attributes and location

Martín-Alcón¹,

Coll²

2010

Silva Fenn.

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Wind and snow-induced damage have been analyzed at stand level for three pine forests in the Central-Eastern Pyrenees (Pinus nigra Arn. salzmanii, Pinus sylvestris L. and Pinus uncinata Ram.). Stand-level models have been then developed for the most affected two species, Pinus sylvestris L. and Pinus uncinata Ram., to describe damage severity. The models were based on data from national forest inventory plots. They included variables related to the spatial location and structure of the stands, being validated using a sub-set of the database (25% of the plots randomly selected). Mountain pine forests (Pinus uncinata Ram.) were the most heavily affected by wind and snow disturbances. For both mountain and Scots pine species, topographic exposure and the severity of the local storm regime had an important effect on the degree of damage. Stand's resistance to wind and snow was found to be dependent on the combined effect of basal area and mean slenderness of the dominant trees. For a given slenderness ratio, damage increased strongly in lower-density stands, particularly in stands with basal areas below 15 m 2 /ha. Stand structure was particularly important to define the resistance of Scots pine stands, which presented a higher vulnerability to wind and snow under higher degree of even-agedness. The models presented in this study provide empirically-based information that can be used to implement silvicultural practices to minimize the risk of those forests to suffer wind and snow-related damages.

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Section: Data Preparationmentioning

confidence: 99%

Wind and snow damage in the Pyrenees pine forests: effect of stand attributes and location

Martín-Alcón¹,

Coll²

2010

Silva Fenn.

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“…stands using the National Forest Inventory as data source (e.g. Aunós et al, 2007;Gomez-Manzanedo et al, 2008;Reque and Bravo, 2008). The main interest of FTs is that they are based on the overstory structure, which is directly linked to many fundamental functions of forests (i.e.…”

Section: Introductionmentioning

confidence: 99%

A broad-scale analysis of the main factors determining the current structure and understory composition of Catalonian sub-alpine (Pinus uncinata Ram.) forests

2011

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Gap size effects on above- and below-ground processes in a silver fir stand

et al. 2009

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Changes in soil properties related to natural regeneration of silver fir (Abies alba, Mill.) in small (185 m 2 ) and medium (410 m 2 ) gaps, in the Calabria Apennines (Southern Italy), were studied 2 years after gap creation. The organic matter within the medium gaps decayed more rapidly than those in the small gaps. Among the microenvironmental variables and soil properties, soil temperature was most strongly positively related to organic matter decomposition rates. Medium gaps had high soil temperature and photosynthetically active radiation (PAR) transmittance, and low soil moisture. Within medium gaps, we found a great amount of phenolic compounds and a low content of organic matter and humic acids. These results indicate that in the medium gaps mineralization of organic matter was more important than humification. In contrast, in small gaps, the great amount of organic matter, the high content of humic acid and the values of humification index suggested that in these gaps the humification process of organic matter prevailed. Within small gaps, we observed more silver fir regeneration than medium gaps. Difference in organic matter content, particularly in the amount of phenolic compounds, may account for differences observed in natural regeneration of silver fir between small and medium gaps.

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Silvogenetic typology of Spanish firwood Abies alba Mill. forests

Cited by 11 publications

References 6 publications

Wind and snow damage in the Pyrenees pine forests: effect of stand attributes and location

Wind and snow damage in the Pyrenees pine forests: effect of stand attributes and location

A broad-scale analysis of the main factors determining the current structure and understory composition of Catalonian sub-alpine (Pinus uncinata Ram.) forests

Gap size effects on above- and below-ground processes in a silver fir stand

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