数理统计方法用于我国的森林调查已有多年,并已取得可喜的成就。但与此同时,竟出现一些背离客观规律的错误作法,很值得我们注意。其一、在有林地中夹小块林窗,这说明林木分布不均匀,是符合林木生长规律的。有一种错误做法,为了缩小变动,“提高”精度, Mathematical statistics have been used in forest surveys in our country for many years and have achieved gratifying achievements. At the same time, however, there are some mistaken practices that deviate from the objective laws, which deserve our attention. First, there is a small gap in the woodland gap, which shows uneven distribution of trees, is consistent with the law of the growth of trees. There is a wrong practice, in order to narrow the changes, “improve” accuracy,