Fig. 3
Standard error and cost paths for photo + field
and for pure field plots (volume growth determination)
I- 1
C/2
C/2
M
I— 1
a
a
0
p
a
CD
H
o
a
EL
CTQ
o
H
n
CTQ
H
+
H
CO
CO
1
H
M
CO
-a
CO
H
W
CO
05
O
m
CO
05
to
o
n
w
•S
CD
£
CD
<
H-
•-S
•-s
o
cr
0
o
p
05
H-«
C-t“
e
o
p
o
<2
I-S
p
P“
0
o
2
h - »
<
0
P*
0
<
O
p*
0
(— 1
1
M
uO
l-r<
hH
HI
/Tv
P
Hi
CL
H*
0
o
/*\
P
Hb
rN