713
7. Growth of pinus massoniana in the climate of Hongkong.-The growth of the tree is similar to that of the Scotch fir.
To calculate the rate of growth, four trees were selected for measurement, as follows:-
(a.) A tree growing on the bank opposite Government House (main entrance), sheltered by other trees and on made ground, a favourable situation, apparently died from old age. Height 35 feet; diameter of annual rings in inches No. 5-2.4, No. 10–6.5, No. 15-10.8, No. 20-11.6, No. 25-13, No. 30-—14.1, No. 35 ——–14.4, No. 40--14.6, No. 45—14.8. No. 50—15.0.
(b.) Old tree from Chai Wan, 30 feet high; growing in an exposed situa- tion near the sea, soit probably good. No. 5-1, No. 10-1.8, No. 15-3.3, No. 20-4.5, No. 25-5.6, No. 30–6.1, No. 55— 6.9, No. 40-7. 2, No. 45-7.5, No. 50-7.8, No. 55-8.1, No. 60-8,4.
(c) Same locality and situation; height 35 feet: No. 5—2.4, No. 10--
4.3, No. 15-5.5, No. 20-6.8, No. 25-8.3, No. 30-9.2, No. 35-9.8, No. 40—10.4, No. 45-10.9, No. 50—11,4, No. 55— 11.9. No. 60--12.4.
(d.) Aberdeen, in a sheltered situation near the sea; soil good. No. 5 -1.6, No. 10--4.0. No. 15—5.0, No. 20-6.3, No. 25-7.3, No. 30—8.4, No. 35—9.2, No. 40—9.6, No. 45 – 9.8, No. 50–10. 2. The increase in height proceeds at the rate of about one foot per year in the best situations up to 20 to 30 years.
The average tree appears to show a marked decrease of growth at about 25 years, possibly from the shallowness of the soil in conjunction with other condi- tions which affect all vegetation on the Island. Natural mixed wood does not attain an average height of more than 20 to 30 feet.
cent.
8. Interest on investments in Hongkong is at the present time about 6 per
9. The total area under pine in 1903 was as follows:-
No.
FOREST DIVISION.
AGE CLASSES. ACEES.
Apparent Ages in Years.
TOTAL
6-10 11-15 16-20
21
ACRES.
3
4
5
1
Victoria,
60
330
180
570
...
Wongueichung,
40
80
210
180
150
660
Shaukiwan,
360
160
100
60
680
Tytam,
15
120
330
150
40
655
Stanley,
10
140
430
110
70
760
Aberdeen,
270
280
70
170
790
Pokfulam,
170
370
240
50
830
Total,
65
1,200
1,780
1,180
720
4,945
The approximate of plantations in 1904 was as follows:-
No.
FOREST DIVISION.
BLOCK.
TOTAL ACRES.
A B Ü
D
E
F G
طرح
H
1
1
Victoria,.. 2 Wongeichung,
Shaukiwan, Tytam,- Stanley, Aberdeen, 7 Pokfulam,
< − CN CO TO H
70140 100 60 140 170
100 130110 | 230 | 100
90 80 60
140 120 80 80
570
660
680
75
745
120 130
90 160 150 | 110
760
190 170 80 90 140100 200 | 140 | 220|140 110 | 130 | 270
770
1,210
Total,
910 910740 | 830 | 810 | 660 | 460
75 5,395
70
90 80 100
80
70
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