Storms drive successional dynamics in natural forests: a case study in Fontainebleau forest (France)

Pontailler, Jean-Yves; Faille, A.; Lemée, Georges

doi:10.1016/s0378-1127(97)00073-x

Cited by 105 publications

(86 citation statements)

References 13 publications

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“…The present study also showed that most CWD in OGFs was in the form of logs up to the diameter class of 65-70 cm, whereas stumps and snags tended to be larger. Similar observations on snags and logs were made by Nilsson et al [62] and Pontailler et al [63]. Although snags were larger than logs, this fact alone was not sufficient to state that OGFs experienced more endogenous mortality processes (e.g., senescence of trees) than exogenous processes (e.g., windthrow), since the number of logs was generally greater than the number of snags.…”

Section: Deadwood Diameter Structuresupporting

confidence: 68%

Comparing the Quantity and Structure of Deadwood in Selection Managed and Old-Growth Forests in South-East Europe

Keren

Diaci

2018

Forests

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Abstract:The knowledge about the impact of selection silviculture on deadwood components is fairly scarce. This study compared two Dinaric old-growth forests (OGFs) with adjacent managed forests (MFs) in which the single-tree selection system has been applied for a century. The comparisons were made in terms of the current amounts of coarse woody debris (CWD), distribution of its decay stages, and diameter structure of different CWD types (snags, logs, stumps). The relationship between the volume of live and dead trees was also examined. In both OGFs and MFs, the most snags were found in the third decay stage, while the volume of logs and stumps increased from the first to fifth decay class. The study showed the clear advantage of OGFs over adjacent selection MFs in terms of CWD volume, whereas the basal area of live trees and growing stock were not always reliable indicators for distinguishing between MFs and OGFs. The diameter distribution of individual CWD types (snags, logs, stumps) also differed significantly between selection MFs and OGFs in all tested pairs. This fact, along with the significant differences in CWD volume, indicates that selection silviculture should be amended to incorporate practices that ensure more natural management of deadwood components.

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Section: Deadwood Diameter Structuresupporting

confidence: 68%

Comparing the Quantity and Structure of Deadwood in Selection Managed and Old-Growth Forests in South-East Europe

Keren

Diaci

2018

Forests

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“…These changing site conditions influence the distribution of plant life forms as well as of humus forms and the structure of soil animal communities, as will be seen below. Making references to previous works, this paper presents a synthesis of recently published research results [1,3,14,39,44]. It suggests a multifunctional approach of the ecosystem dynamics highlighting:…”

Section: Introductionmentioning

confidence: 94%

“…These two parcels are classified as integral biological reserves, which means that management has been abandoned for more than three centuries, a unique situation within lowland forests of western Europe. Research effort has focused especially on the life history of trees, vegetation dynamics, plant sociology, soil science, bio-geochemical cycles and on the impact of small mammals and birds on predation and dispersal of seeds [10,15,27,29,43,44]. Studies on biological properties and functioning of humus profiles in relation to the sylvigenetic cycle started just a few years ago, sponsored by the French National Office of Forests and the French Ministry of the Environment [1,3,14,39,42].…”

Section: Introductionmentioning

confidence: 99%

Diversity and dynamics of eco-units in the biological reserves of the Fontainebleau Forest (France): Contribution of soil biology to a functional approach

Arpin

Ponge

Faille

et al. 1998

European Journal of Soil Biology

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“…We assumed that modelled oaks exist in a woodland-type environment with low (around and below 100 trees/ha) overstory tree density where density-dependent mortality is minimal, as compared to age-related mortality and mortality during single disturbance events (Pontailler et al, 1997;Wolf et al, 2004). Mortality in the model was decomposed into the sum of regular mortality (RM) and irregular or 404p3 Ann.…”

Section: Description Of the Modelmentioning

confidence: 99%

“…A study of beech (Fagus sylvatica)-dominated old growth forests in France suggests that particular types of mortality events (e.g. uprooting and windbreaks) may be size-dependent (Pontailler et al, 1997).…”

Section: Mortality Ratesmentioning

confidence: 99%

Lifespan and mortality of old oaks — combining empirical and modelling approaches to support their management in Southern Sweden

Drobyshev¹,

Niklasson²,

Linderson

et al. 2008

Ann. For. Sci.

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To cite this version:Igor Drobyshev, Mats Niklasson, Hans Linderson, Kerstin Sonesson, Matts Karlsson, et al.. Lifespan and mortality of old oaks -combining empirical and modelling approaches to support their management in Southern Sweden. Annals of Forest Science, Springer Verlag/EDP Sciences, 2008, 65 (4), pp.1. Ann. For. Sci. 65 (2008) Abstract -• Old oaks (Quercus robur L.) play an important role in the southern Scandinavian landscape by providing habitat for a wide range of species, a large proportion of them being currently on the National Redlists.• To provide support for the management of these trees, we review data on oak mortality and formulate a mortality-driven stochastic model analysing interactions between mortality rate, oak recruitment rate into 100-150 age class, and amount of oaks older than 200 years.• Empirical annual mortality rates varied between 0 and 13% with average 1.68%. Trees older 200 years had an average mortality rate of 1.1%. Oaks in the high density forests showed higher mortality (3.2%) as compared to the trees growing in the low density forests (1.2%). A 400-year long modelling exercises indicated that under current mortality rates (regular mortality being centred around 1% annually; and irregular mortality 7% with average return time of 13 years) the long-term maintenance of 20 trees older than 200 years per ha would require an input rate of 1 to 5 trees × year −1 × ha −1 into the 100-150 years old class.• The modelling highlighted the importance of initial oak abundance affecting amount of old trees at the end of shorter (100 years) simulation period.European hardwoods / conservation / dendrochronology / population dynamics / disturbance Résumé -Durée de vie et mortalité des vieux chênes : une approche empirique combinée à une modélisation pour un appui à leur gestion dans le sud de la Suède.• Les vieux chênes (Quercus robur L.) jouent un rôle important dans le paysage du sud de la Suède en procurant un habitat pour un large éventail d'espèces, une grande proportion d'entre elles étant actuellement dans les Listes rouges nationales.• Pour appuyer la gestion de ces arbres, nous avons examiné les données relatives à la mortalité des chênes et formulons un modèle stochastique de mortalité analysant les interactions entre taux de mortalité, taux de recrutement des chênes dans les classes 100-150 ans et total des chênes plus vieux que 200 ans.• Les taux empiriques de mortalité ont varié entre 0 et 13 % avec une moyenne de 1,68 %. Les arbres de plus de 200 ans présentaient un taux de mortalité de 1,1 %. Dans les plus fortes densités forestières les chênes montraient une mortalité plus élevée (3,2 %) comparativement aux arbres poussant dans des forêts de densité plus faible (1,2 %). Des exercices de modélisation sur 400 ans ont indiqué qu'en dessous d'un taux courant de mortalité (mortalité courante annelle centrée autour de 1 % et mortalité irrégulière de 7 % avec un temps de retour de 13 ans) la maintenance à long terme de 20 vieux arbres par hectare demanderait u...

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Storms drive successional dynamics in natural forests: a case study in Fontainebleau forest (France)

Cited by 105 publications

References 13 publications

Comparing the Quantity and Structure of Deadwood in Selection Managed and Old-Growth Forests in South-East Europe

Comparing the Quantity and Structure of Deadwood in Selection Managed and Old-Growth Forests in South-East Europe

Diversity and dynamics of eco-units in the biological reserves of the Fontainebleau Forest (France): Contribution of soil biology to a functional approach

Lifespan and mortality of old oaks — combining empirical and modelling approaches to support their management in Southern Sweden

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