Table 2.1. Major characteristics of the study sites in the Montseny and Prades experimental areas
tt1
~
Location
Type
of site
Major focus
Area"
Mean slope b
Aspect C
Altitude
CI>
...
(ha)
(0)
(m)
S·
CI>
Montseny
g
eo.
La Castanya
»...
Torrent de la Mina (TMO)
Catchment
Water
and nutrient budgets
200
34
NE
652-1343
CI>
'"
5.9 d
en
TM9
Catchment
Water and nutrient budgets
37
N
700-1035
0
....,
Forest survey plots
Plots (n=81)
Tree growth; stand biomass
0.0154
20-38
NandE
700-1200
"t:I
...
and production
'" 0Closed-canopy plots
Plots (n=18)
Nutrient cycling
0.0154
20-35
NandE
800-1000
CI>
'"
Permanent plot
Plot (n=l)
Biomass, production, nutrient
0.23
7-23
WtoNW
660-675
' "
::s
cycling, hydrochemistry,
0s::
ecophysiology
0
Llanc;ii.
Plot (n=I)
Soil mesofauna
0.02
9
SE
870
g
'"
Figaro
Plots (n=43)
Stand dynamics
0.0314
7-40
All
450-750
CI>
~
Prades
Titllar
Avic
Catchment
Water
and nutrient budgets;
51.6
28
NW
700-1018
ecophysiology; soil studies
Teula
Catchment
Water and nutrient budgets
38.5
NW
740-1084
Forest survey plots e
Plots (n=15I)
Tree growth; stand biomass
0.0025
WtoN
750-950
and production
Tomers
Fertilization/irrigation experiment
Plots (n=24)
Resource limitation
0.0064
11-24
SE
900
Burning/clear-cutting experiment
Plots (n=3)
Disturbance effects
0.0400
SSE
800-900
Thinning experiment
Plots (n=12)
Water and carbon use,
0.5
NE
650-750
stand growth, modelling
" Area
of each individual catchment or plot.
b
For catchments, the mean slope of sides lopes is given.
C
For catchments, the dominant orientation of the main stream is given.
d
The previously reported area for TM9 (4.3 ha), based on 1:10000 topographic maps, was found to underestimate the true catchment area according to the
Cl- budget. Catchment area was adjusted to give a balanced CI- budget for 1984-1992, as detailed in Pinol et al. (1995).
e
Sixty-nine 25-m 2
plots within the Avic catchment; eighty-two 49-m 2
plots within the Teula catchment.
.....
'-I