THE SILVICULTUKAL SYSTEM. 



175 



The folio-wing paragraphs are largely taken from the preliminary 

 report for the Lansdowne division 67 but will apply equally to other 

 areas where bamboo forms the most important species in the crop. 



The silvicuitural system adopted is the treatment of the 

 timber trees comprising tha overwood as standards in a coppice 

 and the treatment of the bamboos as the underwood under the 

 best methods of working so far demonstrated by research and 

 experience. Coupled with ordinary fellings of the overwood and 

 the bamboo cuttings hereafter described a certain area of the 

 circle in each range will be brought under experimental concent- 

 rated working with a view to the completion of the bamboo crop 

 by sowing and planting and the maintenance of the proper grada- 

 tion of age classes in thef overwood by natural or artificial 

 regeneration. 



It is also necessary to arrive at some idea of what proportion 

 of the canopy should be occupied by the overwood and what 

 proportion by bamboos. It is suggested that as overwood is of 

 secondary financial importance it will suffice if to ^rd of 

 the canopy be occupied by the overwood and f to frd by 

 bamboos. 



The standard rotation for bamboos is four years in the sub- 

 montane divisions. There is no objection in reducing this rota- 

 tion to three years when the demand is heavy and first class super- 

 vision is available for the enforcement of the cutting rules. 

 In the absence of such control over felling and the deterioration 

 of the bamboos will probably result. It is significant that the 

 bamboo has been practically exterminated over large areas of the 

 Saharanpur division by reckless exploitation. The rotation for 

 the standards will vary in accordance with the character and 

 value of the overwood. In Lansdowne the rotation of standards 

 has been fixed at 80 years. 



It is important that a number of small felling series each 

 consisting of three or four annual coupes should be arranged. 



The 



ailvicul- 

 tural 

 system. 



The 

 rotation. 



Felling 

 series. 



Preliminary wording plan report. Lansdowne TREVOR. 



