摘要
模拟株距法是取消样地边界,以抽取少量样木组成样本,可以估测林分单位面积的森林蓄积量。经过全林实测的验证是具有效率高、精度可靠、适应性强的森林蓄积量抽样技术。
The simulated plant spacing method can estimate the forest volume per unit area of the stand by eliminating the boundary of the sample plot and taking a small number of samples.It has been proved that the sampling technology of forest volume has the advantages of high efficiency,high accuracy,reliability and strong adaptability.
作者
俞维贤
徐乐
徐长利
YU Weixian;XU Le;XU Changli(Former Heilongjiang Forestry Investigation and Design Institute,Harbin 150001;Heilongjiang Forest Botanical Garden,Harbin 150001;Heilongjiang Forestry Monitoring and Planning Institute,Harbin 150001)
出处
《林业勘查设计》
2020年第2期124-128,共5页
Forest Investigation Design
关键词
1/2株距
平均胸径
样本形高
蓄积估测
t值检验
抽样精度
1/2 Plant Spacing
Average Breast Diameter
Sample Shape Height
Accumulation Estimation
T Value Test
Sampling Accuracy
