IX, A, 5 



Browfi and Mathews: Dipterocarp Forests 



481 



Table XX. — Annual growth of Shorea polysperma (tanguile). 

 Laguna forest, Laguna Province, Luzon — Continued. 



Northern 



No. of tree in class. 



Diameter class in centimeters. 



40 to 50. 



50 t 



Diam- 

 eter. 



o60. 



60 to 70. 1 



Diam- 

 eter. 



Growth. 



Growth. 



Diam- 

 eter. 



Growth. 



1 



46.8 

 43.7 

 46.9 

 45.6 



0.805 



53. 6 0. 263 



66.9 



0.296 



2 



0.362 52.2 1 0.395 



3 



0. 493 

 0.542 



53.0 

 53.8 



0.427 

 0.263 







4. _. 







5 









6 















7 . . 













8 . - 













9 















10 











) 



Total 













2.202 

 0.550 







1.348 

 0. 3.S7 



0.296 



0.296 



33.8 



Average . , - - . 





Years in class 



1 



3.2 



29-7 















1 



Table XXI. — Annual diameter growth of Hopea pierrei (dalindhigan-iaak) . 

 Northern Laguna forest, Laguna Province, Luzon. 



[Diameter and growth are given in centimeters. ] 



No. of tree in class. 



Diameter class in centimeters. 



to 10. 



10 to 20. 



20 to 30. 



30 to 40. 



Diam- 

 eter. 



Growth. 



Diam- 

 eter. 



Growth. 



Diam- 

 eter. 



Growth. 



Diam- 

 eter. 



Growth. 



1 



9.0 

 6.8 

 7.7 

 8.4 

 8.1 

 9.9 

 9.9 

 7.1 

 8.4 

 8.1 

 9.8 

 7.9 



0.263 

 0.197 

 0.197 

 0.329 

 0.313 

 0.313 

 0.099 

 0.362 

 0.230 

 0.214 

 0.247 

 0.132 



13.7 

 10.8 

 10.9 

 12.1 

 11.4 

 17.8 

 10.7 

 18.0 

 11.7 

 10.4 

 12.9 

 18.4 

 10.8 

 17.6 

 18.7 

 12.0 

 13.0 

 13.0 

 12.6 

 17.2 

 11.5 

 13.6 

 13.0 



0.115 

 0.197 

 0.247 

 0.362 

 0.099 

 0.197 

 0.214 

 0.181 

 0.164 

 0.066 

 0.164 

 0.560 

 0.263 

 0.444 

 0.164 

 0.362 

 0.345 

 0.230 

 0.132 

 0.280 

 0.345 

 0.296 

 0.313 



20.1 

 21.6 

 24.0 

 29.8 

 20.5 

 26.7 



0.411 

 0.626 

 0.231 

 0.295 

 0.428 

 0.164 



31.6 



0.214 



2 



3 







4 







5 







6 







7 







8 











9... 











10 











11 











12 











13 









14 - -.- 













15 













16 













17. 









1 





18 - - 











■ 





19 















20 - 















21.- 













22 













23 - 















Total ._ 

















2.896 

 0.241 







5.740 

 0.2.';0 



27 



2.156 

 0.359 



.8 





0.214 

 0.214 







Years in class 



41 



.5 



40.0 



46.7 1 















1 



