Oak Provenances



Provenance card

FRA019 - BOULOGNE

Quercus petraea



Main features

Code FRA019
Name BOULOGNE
Native forest BOULOGNE
Country France
Region 41
Forest type FD
Latitude (WGS84) -
Longitude (WGS84) -
Validated coordinates True
Altitude 94
Altitude min -
Altitude max -
Altitude precision non_precis
Species Quercus petraea
Number of lots 1 (click here to see lots)
Number of plots in provenance tests 39 (click here to see plots)
Number of trees in provenance tests 936 (click here to see trees)

Plot characteristics

Plot number (1989) 120-121
Plot number (2018) 120-121
Slope of the harvest plot (code) 0
Relied of the harvest plot (code) 4
Exposure of the harvest plot (code) 0
Soil name brun mésotrophe
Class depth of soil 2
Subsoil name sables et marnes
Sylvoecoregion code (CODESER) B70
Great Ecological Regions code (IGN) B
UC number 0
Madsen network No
Code of the region of French provenance (Ducousso 2004) QPE106
Code of the region of French provenance (reference at the time of installation) 01-CR
Annual or synthetic climatic data of places of provenances
IKS variable heat demand (period 1960-1990) 3656
IKS cold resistance variable (period 1960-1990) 1.11128342151642
IKS variable of resistance to hydric stress (period 1960-1990) 264.030151367188
MWMT : Average temperature of the hottest month (period 1960-1990) 18.7999992370605
MCMT : Average temperature of the coldest month (period 1960-1990) 3
Difference between MWMT and MCMT 15.8000001907349
Annual heat/humidity ratio (period 1960-1990) 31.8999996185303
Summer heat/humidity ratio (period 1960-1990) 69.5999984741211
Summer precipitation (May to September) (period 1960-1990) 270
Number of degree-days below 0°C (period 1960-1990) 54
Number of degree-days above 5°C (period 1960-1990) 2365
Number of degree-days below 18°C (period 1960-1990) 2710
Number of degree-days above 18°C (period 1960-1990) 165
Number of annual frost-free days (period 1960-1990) 305
Duration of the frost-free (period 1960-1990) 231
Julian day of start of frost-free period (1960-1990 period) 86
Julian day of end of frost-free period (1960-1990 period) 317
Precipitation in the form of snow (period 1960-1990) 15
Minimum temperature for the whole period (period 1960-1990) -17.2000007629395
ETP Hargreaves (period 1960-1990) 744
Climatic water deficit of Hargreaves (period 1960-1990) 274
Monthly climatic data of places of provenances
Month Monthly precipitation (1960-1990) Average daily maximum temperature for the month (1960-1990) Average daily minimum temperature for the month (1960-1990)
1 58 5.80000019073486 0.100000001490116
2 53 7.5 0.600000023841858
3 50 11.6999998092651 2.40000009536743
4 49 15.3000001907349 5.19999980926514
5 62 18.3999996185303 8.19999980926514
6 53 22.2999992370605 11.3000001907349
7 50 24.5 13.1000003814697
8 51 23.7999992370605 12.8000001907349
9 54 21.3999996185303 10.8999996185303
10 55 16.2000007629395 7.09999990463257
11 62 10 3.59999990463257
12 56 6.5 1