森林覆盖率的计算方法是一个较难统一的问题。国际上的有关组织虽做过一些规定,但各国并不是都按此标准执行。我国“四·五”清查时计算森林覆盖率的方法与以前的技术规定也不一致,各省亦是如此,目前进行的全国林业区划工作也碰到了这一棘手题目,本刊1981年第三期已组织过专题讨论,后又有不少读者来稿,提出他们的观点,为使问题讨论的更深入,现摘录如下: The calculation method of forest coverage is a more difficult problem to be solved. Although some international organizations have made certain provisions, not all countries implement this standard. The method of calculating forest coverage in the “4 · 5” inventory of China is also inconsistent with the previous technical regulations. So is the case in all provinces. The current national forestry zoning work has also encountered this thorny issue. The third issue of 1981 Organized thematic discussion, then there are many readers contributions, put forward their point of view, in order to make the issue more in-depth discussion, are excerpted as follows: