scholarly journals Seismotectonics in Northeastern France and neighboring regions

2021 ◽  
Vol 353 (S1) ◽  
pp. 1-33
Author(s):  
Cécile Doubre ◽  
Mustapha Meghraoui ◽  
Frédéric Masson ◽  
Sophie Lambotte ◽  
Hélène Jund ◽  
...  
Keyword(s):  
Northeastern France

Knowledge and vaccination practices among family physicians in northeastern France regarding tick-borne encephalitis virus.

2021 ◽  
pp. 101774
Author(s):  
Marie Dollat ◽  
Anne-Pauline Bellanger ◽  
Laurence Millon ◽  
Catherine Chirouze ◽  
Quentin Lepiller ◽  
...  
Keyword(s):  
Family Physicians ◽  
Encephalitis Virus ◽  
Tick Borne Encephalitis ◽  
Northeastern France ◽  
Tick Borne Encephalitis Virus

scholarly journals Towards Silviculture Guidelines to Produce Large-Sized Silver Birch (Betula pendula Roth) Logs in Western Europe

Forests ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 599
Author(s):  
Héloïse Dubois ◽  
Hugues Claessens ◽  
Gauthier Ligot
Keyword(s):  
Betula Pendula ◽  
Western Europe ◽  
Forest Health ◽  
Silver Birch ◽  
Growth Potential ◽  
Betula Pendula Roth ◽  
Crown Diameter ◽  
Birch Trees ◽  
Timber Tree ◽  
Northeastern France

Forest health problems arising from climate change, pests and pathogens are a threat to the main timber tree species. As a result, silver birch (Betula pendula Roth) has become a precious asset for meeting oncoming forestry challenges in western Europe. However, silviculture guidelines to produce high-value birch logs in this region are lacking. Producing large-sized birch trunks requires crown release, i.e., removing crown competitors around selected target trees. These interventions are currently seldom carried out or else too late when the growth potential of the trees has already diminished. This study set out to ascertain the diameter at breast height (dbh) that could be reached by crown-released birch, determine dbh-associated crown diameters, and further characterize the gain obtained from early crown release on birch dbh growth. We measured 704 birch trees that had undergone crown release in 38 naturally regenerated pure birch stands in southern Belgium and in northeastern France. We then evaluated the variation in stem and crown diameter, and analyzed increments in response to the earliness of the interventions in three subsamples, also compared with control target birch. We found that trees with a dbh of 50 cm could be grown within 60 years. Based on crown diameter, to produce 40, 50 and 60 cm dbh trunk, the distance required between target birch trees at the end of the rotation was around 8, 10 and 12 m. With no intervention and in ordinary dense birch regenerations, the dbh increment was found to decline once the stand reached age 4–7 years. Starting crown release in stands aged 4–5 years can double the dbh increment of target trees and provide a continual gain that may last up to 20 years. When birch crowns are released after 9–12 years, it may already be too late for them to recover their best growth rate. Our contribution should help complete emerging guidelines in support of birch silviculture development.

scholarly journals Incidence of solitary pulmonary nodules in Northeastern France: a population-based study in five regions

BMC Cancer ◽  
2017 ◽  
Vol 17 (1) ◽  
Author(s):  
Émilie Marrer ◽  
Damien Jolly ◽  
Patrick Arveux ◽  
Catherine Lejeune ◽  
Marie-Christine Woronoff-Lemsi ◽  
...  
Keyword(s):  
Pulmonary Nodules ◽  
Population Based ◽  
Solitary Pulmonary Nodules ◽  
Population Based Study ◽  
Northeastern France

Sick-building symptoms in office workers in northeastern France: a pilot study

1998 ◽  
Vol 71 (5) ◽  
pp. 353-356 ◽  
Author(s):  
D. B. Teculescu ◽  
E.-A. Sauleau ◽  
N. Massin ◽  
A. B. Bohadana ◽  
O. Buhler ◽  
...  
Keyword(s):  
Pilot Study ◽  
Office Workers ◽  
Sick Building ◽  
Northeastern France

scholarly journals Biomass increment and carbon balance of ash (Fraxinus excelsior) trees in an experimental stand in northeastern France

2004 ◽  
Vol 61 (6) ◽  
pp. 577-588 ◽  
Author(s):  
No�l Le Goff ◽  
Andr� Granier ◽  
Jean-Marc Ottorini ◽  
Marianne Peiffer
Keyword(s):  
Carbon Balance ◽  
Fraxinus Excelsior ◽  
Experimental Stand ◽  
Biomass Increment ◽  
Northeastern France
Sign in / Sign up

Export Citation Format

Share Document