Preliminary study on change cultivation of Pinus sylvestris in Longjiang county

This research studied the experiment of introducing Pinus koraiensis engrafted on Pinus sylvestris saplings in Longjiang county,Heilongjiang Province,which in order to transform the Pinus sylvestris forest and Pinus koraiensis forest.Grafting improvement was carried out with site difference,the different grafting time and different humidity conserving method.It was known that the survival rate and preservation rate of intergeneric grafting had difference by the investigation.On the other hand,transpiration could be reduced and grafting survival rate could be improved by using capping with plastic bag on grafting.