Know more

Our use of cookies

Cookies are a set of data stored on a user’s device when the user browses a web site. The data is in a file containing an ID number, the name of the server which deposited it and, in some cases, an expiry date. We use cookies to record information about your visit, language of preference, and other parameters on the site in order to optimise your next visit and make the site even more useful to you.

To improve your experience, we use cookies to store certain browsing information and provide secure navigation, and to collect statistics with a view to improve the site’s features. For a complete list of the cookies we use, download “Ghostery”, a free plug-in for browsers which can detect, and, in some cases, block cookies.

Ghostery is available here for free: https://www.ghostery.com/fr/products/

You can also visit the CNIL web site for instructions on how to configure your browser to manage cookie storage on your device.

In the case of third-party advertising cookies, you can also visit the following site: http://www.youronlinechoices.com/fr/controler-ses-cookies/, offered by digital advertising professionals within the European Digital Advertising Alliance (EDAA). From the site, you can deny or accept the cookies used by advertising professionals who are members.

It is also possible to block certain third-party cookies directly via publishers:

Cookie type

Means of blocking

Analytical and performance cookies

Realytics
Google Analytics
Spoteffects
Optimizely

Targeted advertising cookies

DoubleClick
Mediarithmics

The following types of cookies may be used on our websites:

Mandatory cookies

Functional cookies

Social media and advertising cookies

These cookies are needed to ensure the proper functioning of the site and cannot be disabled. They help ensure a secure connection and the basic availability of our website.

These cookies allow us to analyse site use in order to measure and optimise performance. They allow us to store your sign-in information and display the different components of our website in a more coherent way.

These cookies are used by advertising agencies such as Google and by social media sites such as LinkedIn and Facebook. Among other things, they allow pages to be shared on social media, the posting of comments, and the publication (on our site or elsewhere) of ads that reflect your centres of interest.

Our EZPublish content management system (CMS) uses CAS and PHP session cookies and the New Relic cookie for monitoring purposes (IP, response times).

These cookies are deleted at the end of the browsing session (when you log off or close your browser window)

Our EZPublish content management system (CMS) uses the XiTi cookie to measure traffic. Our service provider is AT Internet. This company stores data (IPs, date and time of access, length of the visit and pages viewed) for six months.

Our EZPublish content management system (CMS) does not use this type of cookie.

For more information about the cookies we use, contact INRA’s Data Protection Officer by email at cil-dpo@inra.fr or by post at:

INRA
24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal

Home page

Forest species

POPLAR (Populus nigra, Populus deltoides, P. trichocarpa et their hybrids)

Peuplier noir reduit

Poplar is a fast-growing species (maturity 15-20 years), which compensates for the small area it represents (1.2% of French forest) and allows it to occupy second place for annual hardwood lumber production, behind oaks.

Poplars are not only present in plantations since the black poplar species (Populus nigra, the only one of the three species studied by INRAE that is indigenous to Europe) also forms natural stands, particularly along the (rare) watercourses that are still relatively wild, such as the Loire. (http://peupliernoir.orleans.inra.fr/).

The poplar can be considered as the flagship species of UMR BioForA since it is the subject of genetic and physiological work and since this work has applications in terms of general understanding of how trees function in their environment, varietal selection and conservation.

_______________________________________________________________________________________________

SCOTS PINE (Pinus sylvestris)

Image3

In France, Scots pine is found in its natural state in Alsace, the Vosges, the Massif Central, the Pyrenees and the Alps. Because of its hardiness and tolerance to a very wide range of climates and soil conditions, Scots pine has often been used in reforestation on plains where regeneration and growth of other forest species was very difficult. It represents about 143 million m3 of standing wood and is the main species on 914,000 hectares of forest (IGN inventory 2009-2013).

_______________________________________________________________________________________________

DOUGLAS (Pseudotsuga menziesii)

Douglas_fleurs males & femelles

Imported from the west of the North American continent in the middle of the 19th century, Douglas (Pseudotsuga menziesii) currently covers about 40,000 ha in France, representing a stock of standing timber of 112 million m3 which is increasing by 6 million m3 per year.  Between 7000 and 10000 ha of Douglas are planted each year in France..

_______________________________________________________________________________________________

LARCH (Larix decidua, L. kaempferi et their hybrids)

Meleze

The European larch (Larix decidua) is native to France, but only in the Alps. Its natural area and productivity are restricted there. The numerous advantages of the species (growth, architecture, hardiness, wood) have encouraged foresters to use it outside its natural area, but with other origins, species and/or hybrids that are better adapted. Although it is the 4th largest species of softwood reforestation in France, its place is still modest. It is a species of the future.  

_______________________________________________________________________________________________

COMMON ASH (Fraxinus excelsior)

Frêne reduit

There are 48 species in the genus Fraxinus, 3 of which are indigenous to France: the common ash (Fraxinus excelsior), the oxyphyl ash (F. angustifolia) and the flowering ash (F. ornus). Ash in the broad sense contributes to 4% of the standing volume of wood in French forests, making it the fifth most important hardwood species for this criterion.

The common ash tree (Fraxinus excelsior) is the only one of significant silvicultural interest and the arrival of ash chalarosis in France in 2008 (a disease caused by a parasitic fungus originating from Asia) has relaunched research work on this species.

_______________________________________________________________________________________________

WILD CHERRY (Prunus avium)

abeille sur cerisier reduit

Cherry is a precious, fast-growing hardwood, whose wood can be sold in cabinetry quality when the silvicultural care has been correct.