93 
Part V.] Pearson : Note on the Utilization of Bamboo. 
Working on a five-year rotation we arrive at a sustained annual 
yield of 812,629 bamboos. 
Now, from tbe enumeration of a sample plot in Nerankimale (see 
Appendix VI), tbe yield from 140 culms found on one acre was 6, 550 lbs. 
of dry internodes or, in round figures, 47 lbs. per culm. The annual 
sustained yield of dry internodes working on a five-year rotation, 
therefore, works out at 38,193,563 lbs. or 17,051 tons. 
It was mentioned elsewhere that other areas might be tapped to 
supply the factory at Panimangalore with bamboos. Mr. Barry, the 
Divisional Forest Officer, suggests that bamboos could be floated down 
the Paishwani river, from the forests it drains, to Kasargad, be railed to 
Mangalore and taken up the Netravati river to Panimangalore. Were 
the erection of a mill contemplated at this spot, the possibility of utilizing 
this source of supply also would have to be duly considered. 
(7) Lines of export. 
A metalled road runs from Mangalore to Manjrabad, passing through 
the Uppinangadi range and taps the six blocks under consideration, 
while the Bisli Ghat road runs on the south side of the Padnur block. 
The average distance over which bamboos would have to be carted to 
Yalol, on the Netravati river, is 15 miles, and the distance over which 
they will have to be floated from Yalol to Panimangalore is 20 miles. 
There are two possible ways of exploiting the bamboos from the nine 
blocks in the Puttur Bange. One is by carting them down the Manga- 
lore-Mercara main road and by the Jalsur-Subramania road, an average 
distance of 40 miles, the other by floating them down the Kumardhari 
river via Uppinangadi to Panimangalore. The river, however, is bad for 
floating, being full of rapids and boulders. The only way of improving 
it would be by carrying out fairly extensive blasting operations and by 
erecting temporary dams, so as to regulate and train the stream. Some 
three miles above the junction of the Netravati and Kumardhari rivers 
at Uppinangadi, there is, on the latter river, a low waterfall, which was 
inspected with a view to ascertain the possibility of utilizing the water¬ 
power and finding out if it formed an obstruction to possible floating 
operations. The river here is very broad, so that extensive works would 
have to be carried out to utilize the water for power, while it was found 
that the main channel was sufficiently broad to allow of rafting opera¬ 
tions being carried out. 
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