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一、概述在林业生产和科研教学工作中,我国测树仪器面临着以下几个需要解决的实际问题。 1.为了改进和采用新的森林资源调查方法,必须对立木材积和材种出材量进行直
I. Overview In the field of forestry production and scientific research and teaching, China’s tree-measuring instruments are faced with the following practical problems to be solved. 1. In order to improve and introduce new methods for forest resources surveys, it is imperative that the timber stock and timber output be kept straight