论文部分内容阅读
为了掌握我县林木覆被率的情况,1981年8月,我们在城关公社刘园大队组织了一次典型调查.现综述如下:一、调查方法1.对该大队的土地边界进行实地测绘,用网点板法求算全大队总面积.2.对全大队的沟、路、渠、村庄、坑塘、场地、林业用地等进行全面测量,分别计算面积.3.对集体和社员的四旁树木,分树种、径级进行检尺,分别计算株数和木材蓄积量.
In order to grasp the situation of forest cover in our county, we organized a typical survey in Liuyuan Brigade of Chengguan Commune in August 1981. The survey is summarized as follows: I. Method of investigation 1. Field survey of the land boundary of the brigade with Dotted board method to calculate the total area of the entire brigade .2. The entire brigade of ditches, roads, drains, villages, pit ponds, venues, forestry land for a comprehensive measurement, respectively, area .3 pairs of collectives and members of the trees, Sub-tree species, diameter class for ruler, respectively, calculate the number of trees and wood volume.