The law of seed harvest of Scotch pine in the sandy area
Sun HongZhi; Shi LiYan
Journal of Northeast Forestry University 32(4): 6-8
The mechanism of cone production of Scotch pine (Pinus sylvestris) in a sandy area was analysed based on data collected for 10 years in sample plots located in the Honghuaerji Forestry Bureau of Inner Mongolia, China. The criteria of full year, poor year and normal year of cone production were established according to significant differences and standard errors.