No.
Stratum I
- 5 metres
Stratum II
- 10 metres
Stratum III
- 15 metres
Total
Pan
I. R. Colour
Pan
I. R. Colour
Pan
I. R. Colour
Pan
I. R. Colour
1
3
5
30
37
72
84
108
110
2
11
12
46
49
83
86
117
120
3
4
4
12
14
42
46
121
124
4
1
1
10
11
29
32
105
108
5
20
19
50
48
82
77 '
119
129
6
20
20
58
58
107
104
132
137
7
13
12
49
41
94
70
127
132
8
4
4
19
19
38
54
118
133
9
6
6
14
14
62
58
111
118
10
3
3
17
17
52
43
106
116
Total
85
86
305
308
661
654
1164
1226
Table 3.
Stratified crown counts for panchromatic and
infrared colour on 10 one hectare photoplots
PHOTO COUNTS AND FIELD ENUMERATION ON A BLOCK OF 60 HECTARES
On the 23 x 23 cm. aerial photographs of the panchromatic black and white
coverage which was acquired in 1973, a block of 60 hectares of dry-land forest
was selected. The block was divided into 60 one hectare plots which were laid
out in the field. Crowns were delineated on the aerial photographs and a crown
plan was prepared.
In the field, all trees larger than 25 cm. at breast height, or if there were
buttresses, at 20 cm. above these, were enumerated. Diameters were measured
to the nearest cm. and the local names of the species were noted. The position
of each enumerated tree was indicated on a tree plan. In each plot of one hectare,
the height of the tallest tree was measured to the nearest metre with a Haga
hypsometer. The location of the highest tree in the plot could generally be found
on the aerial photographs without too much difficulty. This was different for the
other enumerated trees on the tree plan. Of the 60 plots, 5 were rejected
because they contained patches of creek forest. On the remaining 55 plots,
6242 trees were enumerated. Of these, 2471 could be located on the aerial photo
graphs and marked on the crown plan. These were counted on the photos in four 5 m