Table
3.1. Characteristics of plots used for density and biomass estimation of holm oak forests at Prades and Montseny. Stern diameters (~
5 cm) were
measured at
50 cm from the ground at Prades and at
1.30 m at Montseny
Locality
Site
Sampling years
Altitude (m)
Number Plot area
Number of
References
of plots (m 2
)
measured
stems'
Prades
Avic
1981,1986
750-950
69
25
729
Lled6
(1990); Lled6 et al.
(1992)
Teula
1986
825-1025
82
49
1804
Lled6
(1990); Lled6 et al.
(1992)
Torners S-facing
1988,1991,1992
900
24
36
1579 b
Mayor and Roda
(1994); Mayor et al.
(1994)
Torners N-facing
1992
700
3
707
2"679
Albeza et al.
(1995); Martinez et al.
(1996)
Montseny Torrent de la Mina,
1985,1988,1991,1995
700-1200
81
154
2400
F. Roda and X. Mayor, (unpub!. data)
whole catchment C
Torrent de la Mina,
1985,1988,1991,1995
800-1000
18
154
733
Mayor
(1990); F. Roda and X. Mayor,
closed-canopy plots
(unpubl. data)
Permanent plot
1977,1985,1991,1994
650-665
2300
462
Ferrc~s
et al.
(1984); Mayor
(1990);
F. Roda, (unpubl. data)
• At first sampling date.
b
Stems with
D50
~ 2 cm.
C
Holm oak forest area only.
;:a
III
::l
p.
;:a
....
~
n
g
....
j1>
~
0
<
'"
()Q
....
0
I"
::l
p.
Ol
o·
S
III
til
til
III
::l
p.
"0
....
0
gn
::to
0
::l
VJ
VJ