IX, A, 6 



Brown and Mathews: Dvpterocarp Forests 



471 



Table XVI. — Annual diameter growth of Parashorea plicata (bagtican 

 lauan) in virgin forest, Mount Maquiling, Laguna Province, Luzon. 



[Diameter and growth are given in centimeters.] 



No. of tree in class. 



Diameter class in centimeters. 



0to5. 



5 to 10. 



10 to 20. 



Diam- 

 eter. 



Growth. 



Diam- 

 eter. 



Growth. 



Diam- 

 eter. 



Growth. 



1 _. _.. 



4.61 

 3.88 

 2.26 

 4.15 

 2.43 





5.19 



7.40 



0.143 

 0.121 

 0.395 

 0.339 

 0.378 

 0.366 

 0.280 

 0.447 

 0.280 

 0.028 



14.92 

 13.21 

 12.72 

 12.10 

 11.09 

 12.61 

 10.15 

 14.00 

 14.30 

 14.19 

 13.39 

 11.44 

 19.35 

 15.00 

 19.55 

 17.38 

 15.78 



0.127 

 0.318 

 0.137 

 0.255 

 0.494 

 0.916 

 0.681 

 0.239 

 0.277 

 0.377 

 0.163 

 0.364 

 1.112 

 0.236 

 0.497 

 0.141 

 0.345 

 0.188 

 0.408 

 0.379 

 0.461 



2 



0.112 



3 





7.29 



4 _ 



0.217 

 0.070 



9.11 

 6.28 

 5.56 

 7.18 

 8.80 

 5.39 

 5.80 



5 



6 











g 







g 







10 







11 







12 





.1 





13 











14 











15 











16 





1 





17 





1 





13 









18.90 

 17.20 

 16.20 

 19.42 



19 









20 --- --- 



1 1 





21 



1 1 





22 



! 





23 



i 



1 





24 



1 



i 





25 — 







1 





26 





i 







27 - 







i 





28 





i 



1 





Yea 



Total 













0.399 





2.777 

 0.279 





8.110 

 0.397 







0.080 









61 



.4 



18.0 



2f 



..8 











Diameter class in centimeters. 



20 to 30. 



30to 40. 



40 to 50. 



Diam- 

 eter. 



Growth. 



Diam- 

 eter. 



Growth. 



Diam- 

 eter. 



Growth. 



1 





20.80 

 22.65 

 22.20 

 27.60 

 29.20 

 ■ 29. 95 



0.600 

 0.620 

 0.255 

 1.046 

 0.617 

 0.445 



30.40 



0.492 



42.75 

 44.10 

 43.10 

 44.25 

 1 4». 40 



0.804 

 1. 110 

 0.830 

 0.455 

 0.R67 



2.. 

 3.- 





33. 00 0. 318 

 34.60 1.068 

 31.65 0.506 

 33. 50 0. 949 





4 



5 .. - - 



6- 





39.60 1.047 i 40.90 1 0.600 



