|
Root length at 20 cm
|
RL20
|
Total root length in the 0 to 20 cm layer
|
cm
|
|
Root length at 40 cm
|
RL40
|
Total root length in the 20 to 40 cm layer
|
cm
|
|
Root length at 60 cm
|
RL60
|
Total root length in the 40 to 60 cm layer
|
cm
|
|
Root volume at 20 cm
|
RV20
|
Total root volume in the 0 to 20 cm layer
|
cm3
|
|
Root volume at 40 cm
|
RV40
|
Total root volume in the 20 to 40 cm layer
|
cm3
|
|
Root volume at 60 cm
|
RV60
|
Total root volume in the 40 to 60 cm layer
|
cm3
|
|
Root diameter at 20 cm
|
RD20
|
Average root diameter in the 0 to 20 cm layer
|
mm
|
|
Root diameter at 40 cm
|
RD40
|
Average root diameter in the 20 to 40 cm layer
|
mm
|
|
Root diameter at 60 cm
|
RD60
|
Average root diameter in the 40 to 60 cm layer
|
mm
|
|
Fine root length at 20 cm
|
FRL20
|
Total root length with diameter ≤ 0.5 mm at 20 cm
|
cm
|
|
Fine root length at 40 cm
|
FRL40
|
Total root length with diameter ≤ 0.5 mm at 40 cm
|
cm
|
|
Fine root length at 60 cm
|
FRL60
|
Total root length with diameter ≤ 0.5 mm at 60 cm
|
cm
|
|
Thick root length at 20 cm
|
TRL20
|
Total root length with 1.0 mm ≤ diameter ≤ 2.5 mm at 20 cm
|
cm
|
|
Thick root length at 40 cm
|
TRL40
|
Total root length with 1.0 mm ≤ diameter ≤ 2.5 mm at 40 cm
|
cm
|
|
Thick root length at 60 cm
|
TRL60
|
Total root length with 1.0 mm ≤ diameter ≤ 2.5 mm at 60 cm
|
cm
|
|
Maintenance coefficient of fine roots between 20 and 40 cm
|
\( {\upalpha}_{FR{L}_{20\_40}} \)
|
Ratio between fine root length at 40 cm and fine root length at 20 cm
|
–
|
|
Maintenance coefficient of fine roots between 40 and 60 cm
|
\( {\upalpha}_{FR{L}_{40\_60}} \)
|
Ratio between fine root length at 60 cm and fine root length at 40 cm
|
–
|
|
Maintenance coefficient of thick roots between 20 and 40 cm
|
\( {\upalpha}_{TR{L}_{20\_40}} \)
|
Ratio between thick root length at 40 cm and thick root length at 20 cm
|
–
|
|
Maintenance coefficient of thick roots between 40 and 60 cm
|
\( {\upalpha}_{TR{L}_{40\_60}} \)
|
Ratio between thick root length at 60 cm and thick root length at 40 cm
|
–
|
|
Branching index at 20 cm
|
BI20
|
Ratio between fine root length at 20 cm and thick root length at 20 cm
|
–
|
|
Branching index at 40 cm
|
BI40
|
Ratio between fine root length at 40 cm and thick root length at 40 cm
|
–
|
|
Branching index at 60 cm
|
BI60
|
Ratio between fine root length at 60 cm and thick root length at 60 cm
|
–
|
|
Total root length
|
TOTRL
|
Sum of root lengths at 20 cm, 40 cm and 60 cm
|
cm
|
|
Total root volume
|
TOTVOL
|
Sum of root volumes at 20 cm, 40 cm and 60 cm
|
cm3
|
|
Thick root diameter at 20 cm
|
DIAM _ TR20
|
Thick root diameter at 20 cm
|
mm
|
|
Thick root diameter at 40 cm
|
DIAM _ TR40
|
Thick root diameter at 40 cm
|
mm
|
|
Thick root diameter at 60 cm
|
DIAM _ TR60
|
Thick root diameter at 60 cm
|
mm
|
|
Thick root diameter reduction between 20 and 60 cm
|
\( {RED}_{T{R}_{20_{60}}} \)
|
Difference ratio between thick root diameters between 20 and 60 cm
|
%
|
|
Shoot dry weight
|
SDW
|
Shoot biomass of one plant target
|
g plant-1
|
