众所周知,角规测树是奥地利林学家W.彼特利希1947年发明的。自1956年由苏联传入我国以来,在森林资源调查上得到了广泛的应用。特别是在华北山陡、少林地区,该测树方法多被采用。通过我们多年的实践和1977年在东北东方红林业局各种抽样试验资料分析,发现其估测值多有系统偏高。就其形成原因,试从角规测树理论上作一探讨。 It is well known that the angle measurement tree was invented by Austrian forestryist W. Petrich in 1947. Since 1956 it was introduced into our country by the Soviet Union, it has been widely applied in the investigation of forest resources. Especially in northern China steep mountains, Shaolin area, the method of measuring trees are used. Through our many years of practice and in 1977, the Northeast Dongfang Forestry Bureau, a variety of sample test data analysis and found that many of its estimates are systematically high. On the formation of reasons, try to learn from the angle measurement tree theory.