能否根据树木早年的生长状况对其后期生长做出予测,这是一个很值得研究的问题。因为它可以为超级苗的选择效果、优良单株的选择年龄、表现型测定的观察年限等课题的研究提供依据。因此,近年来,国内外报道较多,争论也较大。我们曾以吉林省长春市净月潭实验林场的二十五年生樟子松人工林为主要对象,对其生长过程做了一些调 Whether or not to make a prediction of the late growth of trees according to their early growth status is a question worth studying. Because it can provide the basis for the research on such topics as the effect of selection of super seedlings, the age of selection of excellent individuals and the observation period of phenotype determination. Therefore, in recent years, there are more reports at home and abroad, and the arguments are also more controversial. We have to Jilin Changchun City, Jingyuetan experimental forest farm twenty-five year-old Pinus sylvestris plantations as the main object of their growth process to do some