526 



XXVII. COMBRETACEAE 



Owing to the light requirements of the young plants, sowing and 

 planting under cover should be avoided, such work being confined to open 

 places or gaps of some extent. Plantations are apt to be damaged by deer 

 and pigs. 



SzLVicuiiTURAL TREATMENT. The correct treatment of this tree must be 

 based on its light-demanding character during all stages of its existence. 

 Actually its treatment is as a rule that of an accessory species to more valuable 

 trees such as teak or sal, or as a component of a mixed crop in which it is not 

 of outstanding importance. Under existing working plans it is worked along 

 with, other species usually under some form of selection fellings or under 

 coppice- with-standards. For the rearing of silkworms it is regularly pollarded. 

 It is quite suitable for working as even-aged high forest with natural or 

 artificial reproduction. 



Rate of growth. (1) High forest. The annual rings are not always 

 clearly distinguishable, though the rate of growth in several working plans is 

 based on the results of ring-countings ; the figures deduced in tliis way may 

 be taken as only approximately correct. The results of various sample plot 

 measurements are available, and these may be taken to be more accurate 

 than the figures based on ring-countings, though here also there is an element 

 of uncertainty in the fact that the time required for a seedling to establish 

 itself under different conditions is not known. 



United Provinces. The statement below gives a summary of the results 

 of sample plot girth measurements in natural forest up to 1917, the measure- 

 ments in all sample plots being combined for separate localities or forest 

 divisions. These sample plots are situated in sal forest. 



Terminalia tomentosa : girth increment in high forest sample plots, 



United Provinces. 



Note. Measurements taken over bark at 4J ft. from ground-level : no addition made for 

 time required for seedling to establish itself. 



