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LIGUE NATIONALE DE BASKET

2023-2024_Saint-Geyrac 2_RNA_24 Dordogne_France

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Photo du massif avant travaux de Régénération Naturelle Assistée

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Peuplier tremble

Chêne pédonculé

Chêne tauzin

Chêne sessile (rouvre)

Charme commun

Pin maritime

Chêne pubescent

Chêne chevelu

Châtaignier

Située au cœur de la Dordogne, la forêt de Saint-Geyrac a sévèrement été touchée par la tempête de 1999, qui a endommagé plus de 150 hectares de forêt. Sur ces sols peu profonds, filtrants et exposés sud, les pins sont presque la seule essence adaptée à ces conditions difficiles. Les peuplements concernés par ces travaux sont donc en majorité des pins maritimes, mais comportent également des essences feuillues dans les zones plus riches. L’objectif de ce projet est de reconstituer cette forêt de façon naturelle, en testant plusieurs modalités de régénération. Ainsi, le propriétaire pourra dans le futur orienter sa gestion de façon plus efficace, et aboutira plus facilement à une forêt irrégulière comme il le souhaite. Ce projet a pour vocation de privilégier les essences feuillues lorsqu’elles sont présentes, et de les compléter lorsqu'elles sont insuffisantes. A terme, cette forêt gagnera en multifonctionnalité et en résilience, sans avoir eu recours ici à la coupe rase-reboisement.

GOOD_HEALTH_AND_WELL_BEING

CLEAN_WATER_AND_SANITATION

DECENT_WORK_AND_ECONOMIC_GROWTH

CLIMATE_ACTION

LIFE_ON_LAND

PARTNERSHIP_FOR_THE_GOALS

Supports human well-being, by providing resources, income, education, and supporting recreation and heritage.

Influences the quality and integrity of the soil-water system, and the cycling of water and nutrients.

Contributes to the mitigation of the greenhouse effect and influences precipitation patterns and the local microclimate.

Preservation of local biodiversity by providing suitable habitats and resources.

This project is located in the Périgord Blanc Sud natural region in the centre of the Dordogne. The name comes from the white colour of the soil, due to the presence of limestone. With 43% of its surface area covered by woodland, compared with a national average of 31%, the Dordogne ranks 16th among France's most wooded départements.

Located in the heart of the Dordogne, the Saint-Geyrac forest was severely affected by the storm of 1999, which damaged more than 150 hectares of forest. On these shallow, filtering, south-facing soils, pines are almost the only species adapted to these difficult conditions. The stands concerned by this work are therefore mainly maritime pines, but also include deciduous species in richer areas. The aim of this project is to restore this forest naturally, by testing several regeneration methods. In this way, the owner will be able to direct his management more effectively in the future, and will find it easier to achieve the kind of irregular forest he wants. The aim of this project is to give priority to deciduous species where they are present, and to supplement them where they are insufficient. Ultimately, the forest will become more multifunctional and resilient, without having to resort to clear-cutting and reforestation.

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Photo de l'évolution de la plantation en 2023

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Photo de l'évolution de la plantation en 2021

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Érable sycomore

Aulne glutineux

Sorbier des oiseleurs

Merisier

Pin sylvestre

The afforestation rate in Saône-et-Loire is not very high: 21.7%, compared with a national average of 31%. This puts it 63rd in the list of the most wooded départements in France. 

The plots concerned by the project were previously monospecific, i.e. composed exclusively of a single variety of tree, in this case Douglas fir. As in agriculture, this method of management is risky for several reasons: impoverishment of the soil, reduced biodiversity and increased risk of biological attack by pathogens or insects. Forests managed in this way are also more sensitive to adverse environmental conditions such as storms and drought. In fact, it was a storm that destroyed the vast majority of the previous stand. This tree-planting project will enable a genuine forest ecosystem to be recreated. The planting of a variety of species will provide a wide range of habitats and resources for biodiversity. The more vigorous stand will also be less susceptible to the vagaries of climate, disease and parasites. The trees will provide quality wood, storing atmospheric carbon over the long term.

Bénéfices estimés des arbres plantés ou préservés