Main project protocol
Four thinning intensity applied in 1986, % basal area removed :
- 24-27%
- 40-45%
- 56-60%
- 77-79%
- three parcel without thinning
Parcel of 1000m2
45 trunk by parcel follow-up
Two repetitions in parcels with last clear-cut in 1942
One repetition in parcel with last clear-cut in 1928
Measurements
DBH in winter : 1985, 1986, 1987, 1988, 1989, 1991, 2013, 2015, 2017
Height : 1985, 1989
Partial rainfall exclusion
- one thinning intensity, -30% of the basal area applied during the winter 2002-2003
- 6 parcels of 100m2
- 3 parcel thinning and 3 parcel thinning + rainfall eclusion
- last clear cut 1942
Continuous on 6 trees by treatments
- Sap flow (Granier TDP method)
- Temperature : soil, trunk
- Soil relative humidity (TDR method)
- Tree growth (Dendrometers)
- Stem water content (since 2017)
Discrete
- LAI
- DBH (annual)
- Litterfall (monthly)
- Phenology (weekly March -July)
- Shoot and leaf growth (annual)
- Leaf water potential (monthly in spring, summer, automn)
- Photosynthesis
- Respiration : soil, trunk, leaves
- Chemistry of green leaves and litterfall
- Delta13C of leaves